Saw-cut steel composite panels, rock wool sandwich panel saw, cutting
copper blade, cutting blade iron, aluminum cutting saw, woodworking saw
blades, PCD saw blades, precision panel saw blade, multi-saw Saw, Saw
exclusive diamond quartz material, non-porous GUSHI colde saw blade ceramic stone dedicated
diamond saw blades, diamond saw marble, granite diamond saw.
Maintenance of the blade:
1 blade If not used immediately, it should be flat or use the hole to
hang up, or other items can not be stacked on the flat of the blade
foot, and pay attention to moisture, anti-corrosion.
(2) When the blade is no longer sharp cutting surface roughness, it
must promptly re-grinding. Grinding can not change the original angle,
and destruction balancing.
3 inner diameter of the blade correction, the positioning hole
machining, etc., must be performed by the manufacturer. If the process
is bad, will affect the product effect, and potentially dangerous,
reaming should not be over the original aperture 20mm, so as not to
affect the balance of stress.
Blade requirements:
1, when the work piece should be fixed to ensure that, in line with
eating knife profiles positioning direction in order to avoid abnormal
cut, or not to apply lateral pressure curve cutting, smooth feed to
avoid the impact of the blade contacts the workpiece, resulting in
blade breakage, or workpiece flying, accident.
2, work and found abnormal sound GUSHI sanding disc for drill and vibration, cutting surface
roughness, or odor, you must immediately terminate operations, timely
inspection, troubleshooting to avoid accidents.
3, at the start and stop cutting cutting, do not feed too fast to avoid
broken teeth and damaged.
4, if the cutting aluminum or other metal, to use a dedicated coolant
to prevent the blade from overheating, resulting in tooth paste, and
other damage, affecting the cutting quality.
5, flutes and suction equipment to ensure smooth flow of slag device to
prevent slag accumulation into blocks, affecting production and safety.
6, when dry cutting, do not cut long GUSHI tct circular saw blades hours, so as not to affect the
life of the blade and the cutting effect; wet sheet cutting, water jet
cutting should be added, to guard against leakage.
PCD grinding wheel
2014年1月19日星期日
2014年1月1日星期三
Teach you how to select a good carbide saw blade grinding fluid
Quality carbide saw blade factory tutor you how to select a good carbide saw blade grinding fluid
Cheap carbide on the market tend to contain large amounts of the grinding liquid mineral , nitrites , heavy metals , phenols , formaldehyde, phosphorus, chlorine , triethanolamine and the like , although they also may play a lubricating, cooling , anti-bacterial and anti- corrosion rust and so on , but there are less fatal flaws.
First, the health hazards
1 bactericidal additives used phenol , chlorine , formaldehyde caused by the human body is extremely tile cutting blades toxic ;
. Degreasing effect two some minerals surfactant operator will degrease the skin , dry, itching or cracking ;
3 nitrite carcinogenic hazard to humans ;
4 occur in grinding off the cobalt alloy scrap and grinding fluid chemical reaction can easily make grinding fluid color becomes cloudy , and the formation of a large number of carcinogenic cobalt ions , the operator health and social conditions are caused by great harm .
Second, the alloy injury
After using abrasive grinding fluid stone polishing pads containing triethanolamine , using scanning electron microscopy milled alloy surface composition analysis by spectrophotometry grinding fluid cobalt content was measured experimental results show that the mill containing triethanolamine cutting fluid on the hardness of the alloy has great harm .
In summary, if you choose expensive imported high-quality environmentally friendly water-soluble grinding fluid, in addition to the above free of harmful substances, carbide cobalt element turbo diamond blade does not react chemically with the grinding fluid so that you can be recycled always keep grinding fluid is clear and transparent , but also the social environment on human health and without any harm !
Cheap carbide on the market tend to contain large amounts of the grinding liquid mineral , nitrites , heavy metals , phenols , formaldehyde, phosphorus, chlorine , triethanolamine and the like , although they also may play a lubricating, cooling , anti-bacterial and anti- corrosion rust and so on , but there are less fatal flaws.
First, the health hazards
1 bactericidal additives used phenol , chlorine , formaldehyde caused by the human body is extremely tile cutting blades toxic ;
. Degreasing effect two some minerals surfactant operator will degrease the skin , dry, itching or cracking ;
3 nitrite carcinogenic hazard to humans ;
4 occur in grinding off the cobalt alloy scrap and grinding fluid chemical reaction can easily make grinding fluid color becomes cloudy , and the formation of a large number of carcinogenic cobalt ions , the operator health and social conditions are caused by great harm .
Second, the alloy injury
After using abrasive grinding fluid stone polishing pads containing triethanolamine , using scanning electron microscopy milled alloy surface composition analysis by spectrophotometry grinding fluid cobalt content was measured experimental results show that the mill containing triethanolamine cutting fluid on the hardness of the alloy has great harm .
In summary, if you choose expensive imported high-quality environmentally friendly water-soluble grinding fluid, in addition to the above free of harmful substances, carbide cobalt element turbo diamond blade does not react chemically with the grinding fluid so that you can be recycled always keep grinding fluid is clear and transparent , but also the social environment on human health and without any harm !
2013年12月25日星期三
How to choose a good quality core drill
How to choose a good quality core drill ? Used magnetic drill drilling engineers may have distinct magnetic drill drilling speed really is not an ordinary hand drill comparison . Good times but the price is hollow drill twist drill head . So buy the right track to good hollow drill manufacturers consumption is very important. So what kind of Concrete saw blades hollow drill core drill is considered good ? How to choose a good quality core drill ?
I have talked to many customers about this topic. The answer generally have few , there is a trust -based client that is collaborative and after some suppliers will have great confidence in the products are supplied to provide a good product . We will also improve our quality selection system for customers good quality first hurdle ; Some customers are advocating brand type , or some kind of a common brand name products compared to agree , so the time of purchase , know or direct purchase of a certain category diamond blade saws of branded products, other brands of products to try ordinary little or rarely use . Such customers rarely have the opportunity general more suitable to my contacts , products are often cut in , it may be said that many customers will be repeated after it was selected choice of a particular brand of product , and continue to have a good use after the course Some big brand products are indeed the passing rate on the quality control and quality management is 4 inch saw blades very strict, so there is little "winning " situation attack. Another type of customer choice hollow drill bits, to simply learn to pragmatic type , I thought it only appropriate choice , either the price or quality , some brands may know very well , but the quality is not his only reason for choice .
I have talked to many customers about this topic. The answer generally have few , there is a trust -based client that is collaborative and after some suppliers will have great confidence in the products are supplied to provide a good product . We will also improve our quality selection system for customers good quality first hurdle ; Some customers are advocating brand type , or some kind of a common brand name products compared to agree , so the time of purchase , know or direct purchase of a certain category diamond blade saws of branded products, other brands of products to try ordinary little or rarely use . Such customers rarely have the opportunity general more suitable to my contacts , products are often cut in , it may be said that many customers will be repeated after it was selected choice of a particular brand of product , and continue to have a good use after the course Some big brand products are indeed the passing rate on the quality control and quality management is 4 inch saw blades very strict, so there is little "winning " situation attack. Another type of customer choice hollow drill bits, to simply learn to pragmatic type , I thought it only appropriate choice , either the price or quality , some brands may know very well , but the quality is not his only reason for choice .
2013年10月24日星期四
Coated blade excellent overall performance
Blade coating excellent performance
As structural parts wear, corrosion, oxidation and fatigue crack initiation and other damage processes are
Starting from the surface of the wet tile saw member , the member is so attached to the surface layer of high strength, wear ,
And corrosion, anti-oxidation coatings , can inhibit or slow the occurrence of the failure process ,
Achieve the protective purpose ; achieve the protective purpose ; while still a member of the core part toughness , can
Enough to satisfy the members on the stiffness requirements, give full play to their respective coating and substrate member
Excellent performance , so that the dry cut blades member received excellent overall performance. In addition, also the root
According to requirements, to attach some of the surface of the member having excellent physical properties of the coating channel , such as thermal
, Sealing , excellent conductive coatings , satisfaction and improve the physical properties of the member to be
Requirements. To take full advantage of CNC machine tool performance , high efficiency machining the workpiece , so used CNC machine tools, carbide cutting tools should be adopted and ceramics , PCD / CVD / PCBN cutting tools. With the advancement of science and technology , should be changed in the past that the bending strength low alloy views . Some modern flexural strength than carbide HSS has been used to produce solid carbide center drill, tap, small-diameter boring knives, reamers, end mills, 0.1 or more holes , drill , composite drill hole cutter , small diameter 40mm dovetail groove and the T- slot cutters , etc., had domestic production , the use of colde saw blade performance compared with other countries , the price is a fraction of the imports .
1 ) resin bond diamond grinding wheel bond strength is weak , it can be self-sharpening, grinding , and not blocked, high grinding efficiency , small grinding force , low grinding temperature , the disadvantage is poor wear resistance , abrasive wear and tear , it is not suitable for heavy duty grinding . 2 ) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, sharp cutting , grinding , high efficiency, easy to heat and clogging , thermal expansion is less easy to control precision, shortcomings coarse grinding surface , higher costs . 3 ) metal-bonded diamond wheels combined with high strength , wear resistance, low wear , long life, grinding , low cost, can withstand a greater load, but sharp poor, easy to plug .
As structural parts wear, corrosion, oxidation and fatigue crack initiation and other damage processes are
Starting from the surface of the wet tile saw member , the member is so attached to the surface layer of high strength, wear ,
And corrosion, anti-oxidation coatings , can inhibit or slow the occurrence of the failure process ,
Achieve the protective purpose ; achieve the protective purpose ; while still a member of the core part toughness , can
Enough to satisfy the members on the stiffness requirements, give full play to their respective coating and substrate member
Excellent performance , so that the dry cut blades member received excellent overall performance. In addition, also the root
According to requirements, to attach some of the surface of the member having excellent physical properties of the coating channel , such as thermal
, Sealing , excellent conductive coatings , satisfaction and improve the physical properties of the member to be
Requirements. To take full advantage of CNC machine tool performance , high efficiency machining the workpiece , so used CNC machine tools, carbide cutting tools should be adopted and ceramics , PCD / CVD / PCBN cutting tools. With the advancement of science and technology , should be changed in the past that the bending strength low alloy views . Some modern flexural strength than carbide HSS has been used to produce solid carbide center drill, tap, small-diameter boring knives, reamers, end mills, 0.1 or more holes , drill , composite drill hole cutter , small diameter 40mm dovetail groove and the T- slot cutters , etc., had domestic production , the use of colde saw blade performance compared with other countries , the price is a fraction of the imports .
1 ) resin bond diamond grinding wheel bond strength is weak , it can be self-sharpening, grinding , and not blocked, high grinding efficiency , small grinding force , low grinding temperature , the disadvantage is poor wear resistance , abrasive wear and tear , it is not suitable for heavy duty grinding . 2 ) vitrified diamond grinding wheel wear resistance and superior binding capacity of the resin binder, sharp cutting , grinding , high efficiency, easy to heat and clogging , thermal expansion is less easy to control precision, shortcomings coarse grinding surface , higher costs . 3 ) metal-bonded diamond wheels combined with high strength , wear resistance, low wear , long life, grinding , low cost, can withstand a greater load, but sharp poor, easy to plug .
2013年10月21日星期一
Diamond drill rock breaking mechanism
Diamond drill rock breaking role is done by the diamond particles. You
know the drill rock breaking role, it should be aware of a single grain
of diamond rock breaking effect. In hard carbide grinding wheels formations, single grain
diamond drilling pressure in the rock is under high stress conditions
(approximately 4200-5700MPa, some data suggest that up to 6300MPa), the
rock lithology changes occur from the plastic becomes brittle. Single
grain diamond eat into the formation, under the action of the cutting
torque rock breaking, cutting depth substantially equal to the depth of
the diamond particles to eat. This process as "plowing" so called
diamond drill plow cutting action.
In some brittle rocks in (such as sandstone, limestone, etc.), drill the
diamond particles in the WOB torque while 9 inch saw blade under the influence of broken
rock is much larger than the volume of diamond particles eat into the
rotary volume. When the pressure is not, only the direction of movement
along the diamond formation of small trenches, increased pressure will
cause the small grooves on both sides of the deep rock crushing and over
section size diamond particles.
Diamond drill rock breaking effect, except with the lithology and
external factors affecting lithology diamond tool manufacturer (such as pressure, temperature,
formation fluid properties, etc.) related, WOB size is an important
factor. It cone bit like when you have a rock breaking the surface
crushing, crushing fatigue, the volume broken in three ways. Only when
the diamond particles have enough to eat than the pressure into the
formation rock, the rock volume occurs when broken, breaking rocks in
order to achieve the desired effect.
know the drill rock breaking role, it should be aware of a single grain
of diamond rock breaking effect. In hard carbide grinding wheels formations, single grain
diamond drilling pressure in the rock is under high stress conditions
(approximately 4200-5700MPa, some data suggest that up to 6300MPa), the
rock lithology changes occur from the plastic becomes brittle. Single
grain diamond eat into the formation, under the action of the cutting
torque rock breaking, cutting depth substantially equal to the depth of
the diamond particles to eat. This process as "plowing" so called
diamond drill plow cutting action.
In some brittle rocks in (such as sandstone, limestone, etc.), drill the
diamond particles in the WOB torque while 9 inch saw blade under the influence of broken
rock is much larger than the volume of diamond particles eat into the
rotary volume. When the pressure is not, only the direction of movement
along the diamond formation of small trenches, increased pressure will
cause the small grooves on both sides of the deep rock crushing and over
section size diamond particles.
Diamond drill rock breaking effect, except with the lithology and
external factors affecting lithology diamond tool manufacturer (such as pressure, temperature,
formation fluid properties, etc.) related, WOB size is an important
factor. It cone bit like when you have a rock breaking the surface
crushing, crushing fatigue, the volume broken in three ways. Only when
the diamond particles have enough to eat than the pressure into the
formation rock, the rock volume occurs when broken, breaking rocks in
order to achieve the desired effect.
The effect of diamond saw blades
Force effects: In the cutting process, the blade subject to axial force
and tangential force. Because there is in the circumferential direction
and the radial force, in the axial direction so wet granite pads that the blade wavy dish
in radial direction. Both can cause deformation of the rock section is
not flat, stone wasted, sawing noise, vibration intensified, resulting
in diamond caking early damage, reduced blade life.
Temperature effect: the traditional theory: the influence of temperature
on the blade process is mainly manifested in two aspects: First, cause
agglomeration of diamond graphitization; two diamond and matrix is
caused by thermal stress caused by premature loss of diamond particles.
New research showed that: the heat generated during cutting the main
incoming agglomeration. Arc temperature is not high, generally between
40 ~ 120 ℃. The abrasive grinding point temperature was high, generally
between 250 ~ 700 ℃. The coolant only reduce the average temperature of
the arc zone, the temperature has little effect on the grain. This does
not result in graphite carbonization temperature, but will make the
friction between the abrasive particles and the workpiece change in
properties, and to occur between 12 inch saw blade the diamond and the additive thermal
stress, which led to fundamental changes in the failure mechanism of
diamond. Studies have shown that the temperature effect is to make the
biggest factors blade breakage.
Grinding damage: the force effects and temperature than the response,
after a period of use of the blade tend to produce wear damage. Grinding
damage in the form of mainly the following: abrasive wear, local
crushing, a large area of broken off, binders direction along the
cutting speed of the mechanical abrasions. Abrasive: Diamond particles
and constant friction formula pieces, into a flat edge passivation, loss
cutting, increasing friction. Heat causes the cutting surface of the
diamond particles graphite sheet, the hardness greatly reduced,
increased wear: the surface of the diamond particles exposed to
alternating thermal stresses, and also diamond tool manufacturer the cutting under alternating
stress, fatigue cracks will be partially broken, revealing a sharp new
edge, is an ideal wear pattern; large area broken: diamond particles in
the Leads to withstand shock loads, the more prominent grain and grain
prematurely consumed; shedding: the diamond cutting force alternating
binding agent particles are constantly being generated shaking loose.
Meanwhile, the cutting process of the binding agent itself wear and
cutting heat to soften the binding agent. This makes the gripping force
decreased binding agent, when the particle is greater than the cutting
force on the gripping force, the diamond particles will fall off. No
matter what kind of wear and tear with the diamond particles to
withstand load and temperature are closely related. Both of which are
determined by sawing process and cooling lubrication conditions.
and tangential force. Because there is in the circumferential direction
and the radial force, in the axial direction so wet granite pads that the blade wavy dish
in radial direction. Both can cause deformation of the rock section is
not flat, stone wasted, sawing noise, vibration intensified, resulting
in diamond caking early damage, reduced blade life.
Temperature effect: the traditional theory: the influence of temperature
on the blade process is mainly manifested in two aspects: First, cause
agglomeration of diamond graphitization; two diamond and matrix is
caused by thermal stress caused by premature loss of diamond particles.
New research showed that: the heat generated during cutting the main
incoming agglomeration. Arc temperature is not high, generally between
40 ~ 120 ℃. The abrasive grinding point temperature was high, generally
between 250 ~ 700 ℃. The coolant only reduce the average temperature of
the arc zone, the temperature has little effect on the grain. This does
not result in graphite carbonization temperature, but will make the
friction between the abrasive particles and the workpiece change in
properties, and to occur between 12 inch saw blade the diamond and the additive thermal
stress, which led to fundamental changes in the failure mechanism of
diamond. Studies have shown that the temperature effect is to make the
biggest factors blade breakage.
Grinding damage: the force effects and temperature than the response,
after a period of use of the blade tend to produce wear damage. Grinding
damage in the form of mainly the following: abrasive wear, local
crushing, a large area of broken off, binders direction along the
cutting speed of the mechanical abrasions. Abrasive: Diamond particles
and constant friction formula pieces, into a flat edge passivation, loss
cutting, increasing friction. Heat causes the cutting surface of the
diamond particles graphite sheet, the hardness greatly reduced,
increased wear: the surface of the diamond particles exposed to
alternating thermal stresses, and also diamond tool manufacturer the cutting under alternating
stress, fatigue cracks will be partially broken, revealing a sharp new
edge, is an ideal wear pattern; large area broken: diamond particles in
the Leads to withstand shock loads, the more prominent grain and grain
prematurely consumed; shedding: the diamond cutting force alternating
binding agent particles are constantly being generated shaking loose.
Meanwhile, the cutting process of the binding agent itself wear and
cutting heat to soften the binding agent. This makes the gripping force
decreased binding agent, when the particle is greater than the cutting
force on the gripping force, the diamond particles will fall off. No
matter what kind of wear and tear with the diamond particles to
withstand load and temperature are closely related. Both of which are
determined by sawing process and cooling lubrication conditions.
2013年10月11日星期五
steel blade quenching process
The main part of diamond saw blade is circular thin iron, stone cutting high hardness, if you saw the matrix strength and metal grinding wheel hardness is not high enough, it may be side blade-shaped, therefore, how to improve the strength of steel , is to ensure the quality of one of the main blade.
Matrix forming the blade after quenching to the billet processing, then what is the quench it? The billet is heated to a temperature of sub-eutectoid steel or eutectoid steel above a certain temperature, holding time, it would be all of the austenite one, and then quickly cooled to ring saw blades a temperature Ms less (or Ms near isothermal) for martensite (or bainite) transformation, this process is called quenching. Objects can greatly improve the strength of steel, the hardness and wear resistance. Therefore, when machining the blade billet, is an essential step of quenching.Diamond saw blades in China's rapid economic development in the use of more extensive, involving industry stone processing enterprises, especially in the real estate industry, decoration processing must frequently use, this article describes the diamond core drills classification and use of diamond saw blade shape occasion. Because, according to appearance can easily be classified, there are these types: 1, head-type blades, serrated because it is disconnected two consecutive edges of the blade; diamond saw blade according to the above three points is the shape of the classification. 3, a turbine blade type, as it is a sawtooth-shaped turbine.
Matrix forming the blade after quenching to the billet processing, then what is the quench it? The billet is heated to a temperature of sub-eutectoid steel or eutectoid steel above a certain temperature, holding time, it would be all of the austenite one, and then quickly cooled to ring saw blades a temperature Ms less (or Ms near isothermal) for martensite (or bainite) transformation, this process is called quenching. Objects can greatly improve the strength of steel, the hardness and wear resistance. Therefore, when machining the blade billet, is an essential step of quenching.Diamond saw blades in China's rapid economic development in the use of more extensive, involving industry stone processing enterprises, especially in the real estate industry, decoration processing must frequently use, this article describes the diamond core drills classification and use of diamond saw blade shape occasion. Because, according to appearance can easily be classified, there are these types: 1, head-type blades, serrated because it is disconnected two consecutive edges of the blade; diamond saw blade according to the above three points is the shape of the classification. 3, a turbine blade type, as it is a sawtooth-shaped turbine.
2013年10月10日星期四
Electroplated diamond grinding wheel defects exist
Electroplated diamond grinding wheel defects exist :
1 , using a large positive rake angle machining, tool wear serious , cutting vibration is large, and the substrate and diamomd core drill bits the coating metal surfaces are not kept firmly binding the abrasive chemical metallurgical bonding , actually only be mechanically entrapped abrasive coating metal mosaic , thus dominated force is small ;
2, the diamond particles heavier load efficiency, for processing efficiency, processing quality , processing costs, and a great influence on the grinding tool life easy to fall off ( or plating flaking ) and lead to an overall failure ;
3 , to increase the holding force Edge 2000 Pads must be increased coating thickness , and the results highly abrasive bare chip space is reduced, wheel prone to clogging , the cooling effect is poor, prone to burn the workpiece surface ;
4 , the current domestic electroplated grinding wheel manufacturing has not been achieved by optimized processing conditions required to design the best grinding wheel topography, in the domestic diamond coating technology is still in its infancy , as well as the cost of diamond cbn wheel inputs are big , so in the near future diamond coating there is not much development ;
5, the tool angle change on the tool wear, cutting force and cutting vibration is rake angle , clearance angle and helix angle integrated generated , so the choice we must pay more attention to single-layer electroplated diamond grinding wheel will be significantly restricted these inherent drawbacks its efficient grinding applications .
1 , using a large positive rake angle machining, tool wear serious , cutting vibration is large, and the substrate and diamomd core drill bits the coating metal surfaces are not kept firmly binding the abrasive chemical metallurgical bonding , actually only be mechanically entrapped abrasive coating metal mosaic , thus dominated force is small ;
2, the diamond particles heavier load efficiency, for processing efficiency, processing quality , processing costs, and a great influence on the grinding tool life easy to fall off ( or plating flaking ) and lead to an overall failure ;
3 , to increase the holding force Edge 2000 Pads must be increased coating thickness , and the results highly abrasive bare chip space is reduced, wheel prone to clogging , the cooling effect is poor, prone to burn the workpiece surface ;
4 , the current domestic electroplated grinding wheel manufacturing has not been achieved by optimized processing conditions required to design the best grinding wheel topography, in the domestic diamond coating technology is still in its infancy , as well as the cost of diamond cbn wheel inputs are big , so in the near future diamond coating there is not much development ;
5, the tool angle change on the tool wear, cutting force and cutting vibration is rake angle , clearance angle and helix angle integrated generated , so the choice we must pay more attention to single-layer electroplated diamond grinding wheel will be significantly restricted these inherent drawbacks its efficient grinding applications .
Grinding wheel burns and their solutions
In view of the workpiece during grinding wheel burns has been plagued by product quality problems, grinding performance, good surface quality . As CBN abrasive grains can be maintained long-term micro- edge sharpness , will make the workpiece machining accuracy and surface roughness values are achieved more satisfactory results , thus allowing the iamond saw blade workpiece durability increased by 10 % -30 % . Therefore, even if the batch processing of the workpiece, will always get a high shape accuracy and consistency. Grinding wheel burns from the formation mechanism , wheel grinding burn method of examination , grading wheel grinding burn , burn measures to avoid grinding wheel , grinding wheel burn factors , grinding wheel burns solution. Chemical inertness . Cubic boron nitride and iron group elements is dry bits not easy to produce a chemical reaction , so for a variety of high-speed steel , tool steel , tool steel, high alloy hardened steel , chromium steel, nickel alloys , powder metallurgy steel and high temperature alloys such as high temperature , high hardness , low thermal conductivity of the material is very suitable for grinding . Let's start with basic understanding of the formation of the grinding wheel grinding burn to burn on the grinding wheel to form a complete set of solutions to plan , in which: the choice of the grinding wheel grinding wheel burn process is very important . We produce in order to avoid to avoid burns, burns encountered while to find a reasonable solution . Cost savings , high deposition rate , high wear diamond cup grinding wheel resistance, high corrosion resistance. Not only to improve the current efficiency , but also increases the wear resistance and corrosion resistance. Applied to any hard chrome plated , including ; microcracks chrome , white chrome , shiny chrome , etc. can also be used . Good quality , process stability , high efficiency , energy conservation, significant economic benefits. For cylindrical grinding burns, internal grinding burns, burns flat grinding , face grinding burns, burns , etc. centerless grinding wheel grinding way . Diamond resin grinding wheel has a good polishing effect , grinding wheel sharp , easy to plug .
2013年9月28日星期六
[ Alloy saw brand ] alloy saw blade grinding knowledge
1 , coolant grinding teeth grinding fluid that is good or bad decision . Partridge produce large amounts of tungsten grinding , diamond grinding wheel powder, not timely flushing and cleaning carbide
tipped saw blade of grinding wheel tool surface pores , causing the surface of the grinding tool can not grind finish, there is not enough cooling will burn alloys.
2 , grinding teeth grinding effect on the structure . Alloy saw blade grinding teeth model structure is good or bad
And assembly , currently on the market about two types of models: one is floating in Germany Seoul ink types. The type with vertical grinding off , all the advantages of hydraulic stepless movement , all of the feed system using V-shaped guide rail and ball screw work , grinding or big arm with slow feed forward, rewind retraction , Clips cylinder regulator heart, flexible and reliable support piece , pulling teeth accurate positioning, strong self-centering blade positioning heart , arbitrary angle adjustment , cooling flush reasonable , man-machine interface , high precision grinding off , pure grinder rational design ; Type II , which is currently horizontal such as Taiwan and Japan models, the presence of mechanical transmission gears and mechanical clearance dovetail slide accuracy, stable performance low clip , branched bandsaw blades tablet core adjustment difficult, pulling teeth institution or poor reliability , flat two sides , left and right rear corner is not a heart- mill cut , resulting in large deviation angle difficult to control, mechanical wear disaster ensure accuracy.
3 , welding factor. Welding alloys deviation and impact grinding precision , resulting in a large pressure while grinding , while pressure is small, the posterior horn of the same generation of the above factors , welding angle difference , human unavoidable factors , all of the grinding wheel and other factors generates unavoidable impact .
4 , wheel width affect the quality and size . Optional wheel running gold films , note wheel size , granularity is too diamond tool manufacturer coarse grinding wheel produced traces wheel easy to plug the optional fine granularity grinding less easy to burn knife . Grinding wheel diameter and length width thickness is based alloy and alloy tooth width or different each face the situation, not a corner after corner or front wheel specifications are the same as any different from tooth grinding , must be targeted to choose a suitable Specifications wheel .
5 , grinding feed speed. Alloy saw blade grinding entirely good or bad decision grinding feed rate , generally alloy saw blade feed rate at from 0.5 to 6 mm / s can not exceed this value should be 20 per minute teeth , the ultra in every minute 20 tooth feed rate is too large, it will have serious knife tumors or burning alloy wheel impact generated convex and concave surface precision grinding wheel wasted .
2 , grinding teeth grinding effect on the structure . Alloy saw blade grinding teeth model structure is good or bad
And assembly , currently on the market about two types of models: one is floating in Germany Seoul ink types. The type with vertical grinding off , all the advantages of hydraulic stepless movement , all of the feed system using V-shaped guide rail and ball screw work , grinding or big arm with slow feed forward, rewind retraction , Clips cylinder regulator heart, flexible and reliable support piece , pulling teeth accurate positioning, strong self-centering blade positioning heart , arbitrary angle adjustment , cooling flush reasonable , man-machine interface , high precision grinding off , pure grinder rational design ; Type II , which is currently horizontal such as Taiwan and Japan models, the presence of mechanical transmission gears and mechanical clearance dovetail slide accuracy, stable performance low clip , branched bandsaw blades tablet core adjustment difficult, pulling teeth institution or poor reliability , flat two sides , left and right rear corner is not a heart- mill cut , resulting in large deviation angle difficult to control, mechanical wear disaster ensure accuracy.
3 , welding factor. Welding alloys deviation and impact grinding precision , resulting in a large pressure while grinding , while pressure is small, the posterior horn of the same generation of the above factors , welding angle difference , human unavoidable factors , all of the grinding wheel and other factors generates unavoidable impact .
4 , wheel width affect the quality and size . Optional wheel running gold films , note wheel size , granularity is too diamond tool manufacturer coarse grinding wheel produced traces wheel easy to plug the optional fine granularity grinding less easy to burn knife . Grinding wheel diameter and length width thickness is based alloy and alloy tooth width or different each face the situation, not a corner after corner or front wheel specifications are the same as any different from tooth grinding , must be targeted to choose a suitable Specifications wheel .
5 , grinding feed speed. Alloy saw blade grinding entirely good or bad decision grinding feed rate , generally alloy saw blade feed rate at from 0.5 to 6 mm / s can not exceed this value should be 20 per minute teeth , the ultra in every minute 20 tooth feed rate is too large, it will have serious knife tumors or burning alloy wheel impact generated convex and concave surface precision grinding wheel wasted .
2013年9月27日星期五
diamonds expensive reason
At present, the reason why diamonds are expensive, and their characteristics are inseparable.First, the diamond hardness, high density. Diamond is the hardest natural substance known, Mohs hardness of 10. The density of 3.52 over its most natural stones, and very stable. The tile saw blade nature of gravity separation and identification are very important.In addition, the diamond will not only have a high refractive index, but also has a higher dispersion. These two factors, making the diamond cutting and grinding after the show dazzling bright light.
There is a high thermal conductivity of diamond, and its thermal conductivity of copper five times. Designed for the application of this tct saw blades principle can be used to identify the thermal conductivity meter diamond imitation. Some natural blueDiamond, boron element because, further comprising electrically conductive properties.Diamonds are very stable, temperature changes with minimal impact on its size, it does not react with the acid and alkali.Diamond has the lipophilicity of this nature commonly used in diamond sorting; surface of the water droplets in the diamond shape cutting tools and will not spread, this property can be used for the identification of diamonds and imitation.High hardness and stable chemical properties make the beauty of the diamond and the environment will not change over time, which is able to increase the value of the diamond foundation. Diamond formed under harsh conditions so scarce reserves, and is non-renewable resources. Into the global market each year are affected by De beers diamond company strictly controlled. The so-called rare
There is a high thermal conductivity of diamond, and its thermal conductivity of copper five times. Designed for the application of this tct saw blades principle can be used to identify the thermal conductivity meter diamond imitation. Some natural blueDiamond, boron element because, further comprising electrically conductive properties.Diamonds are very stable, temperature changes with minimal impact on its size, it does not react with the acid and alkali.Diamond has the lipophilicity of this nature commonly used in diamond sorting; surface of the water droplets in the diamond shape cutting tools and will not spread, this property can be used for the identification of diamonds and imitation.High hardness and stable chemical properties make the beauty of the diamond and the environment will not change over time, which is able to increase the value of the diamond foundation. Diamond formed under harsh conditions so scarce reserves, and is non-renewable resources. Into the global market each year are affected by De beers diamond company strictly controlled. The so-called rare
2013年9月26日星期四
Single crystal diamond cutting tool must be used for large particles
(mass greater than 0.1g, the best path length not less than 3mm), mainly used in surface roughness, geometry, high precision and dimensional accuracy requirements of precision and ultra precision machining applications fields.Natural diamond single crystal diamond is the most wear-resistant material. Fine texture of its own, after fine grinding, cutting edge edge edge colde saw blade radius as small as 0.008 ~ 0.005μm. But more brittle natural single crystal diamond, the crystal anisotropy, different surfaces or in the same plane of the crystal in different directions were different hardness, during grinding and use must choose the right direction. The use of harsh conditions, coupled with natural single crystal diamond resources are limited, the price is very expensive, so they use a production PCD, PCD / CC and CVD diamond tools. Natural single crystal diamond diamond saw blade is mainly used for some of the ultra-precision machining non-ferrous metals or gold jewelry production.Synthetic single crystal diamond the size, shape and performance are in good agreement, present due to high pressure technology matures, a certain size can be prepared by synthetic single crystal diamond, especially in the processing of high wear-resistant laminated wood, it performance than PCD diamond cutting edge will metal grinding wheel not cause premature passivated.Synthetic polycrystalline diamond (PCD) and synthetic polycrystalline diamond and carbide composite blade (PCD / CC)PCD is at high temperature (about 1800 ℃), pressure (5 ~ 6MPa), the use of cobalt and other metal binding agent to a number of polycrystalline diamond crystal powder polycrystalline material, although slightly lower than the hardness of a single crystal diamond, but it is randomly oriented diamond grains polymerization, is isotropic, as can be arbitrarily oriented cutting tool sharpening, no natural diamond that must be selected as the best cleavage plane as a rake. Diamond saw blade during cutting, the cutting edge is very sensitive for accidental damage, wear resistance is also strong, long stay sharp cutting edge, can be used when machining high speeds and larger cutting depth ( eat deep), life in general is higher than WC-based cemented carbide cutting tools 10 to 500 times, and because of PCD in a conductive metal binding agent, making PCD easy cut to shape, and abundant sources of raw materials, and Diamond tool its price is only dozens of natural diamond a fraction of one to ten, one has become a traditional WC-based cemented carbide cutting tools, high-performance alternatives.PCD inserts to improve the toughness and weldability in the cemented carbide substrate, sintered or pressed on the surface of 0.5 ~ 1mm thick layer of the composition of PCD diamond composite blade (PCD / CC). PCD / CC welding or machine folder available way of making knives. Due to its good weldability, regrinding easy, low cost, and therefore widely used. Diamond saw blade should be noted that, PCD and PCD / CC tool edge sharpness and better surface quality are monocrystalline diamond, while its workability is poor, the grinding ratio is small, it is difficult according to the geometry of any head shape, still can not be easily manufactured with chipbreakers indexable end mills and other geometric shapes and complex products.
2013年9月13日星期五
monocrystalline tool design and application
Carbon atoms, a single diamond crystal, the crystal structure of the highest density of metal atom such as axial face-centered cubic crystal. Diamond crystal connected between the carbon atoms bond to sp3 hybridized covalent bond, with a strong binding force, stability and sds plus drill bits direction. The unique crystal structure of diamond in nature it has the highest hardness, stiffness, refractive index and thermal conductivity, and high wear resistance, corrosion resistance and chemical stability.
Excellent characteristics of single crystal diamond meet the precision and ultra-precision cutting tool material for most of the requirements and is ideal for precision cutting tool materials. Diamond without internal grain boundaries uniform crystal structure so that the tool cutting edge can theoretically reach the atomic level flatness and sharpness, cut thin cutting ability, high precision, cutting force is small; their high hardness and good wear resistance resistance, corrosion resistance and chemical stability can ensure that the tool has a long life, so that it can continue for a long time of cutting, the tool wear can be reduced because of the diamond discs precision of the parts; its high thermal conductivity can be reduced and the cutting temperature parts thermal deformation.
Single crystal diamond tool in the machining field has an important position, is widely used as a mirror, missiles and rockets navigation gyro, computer hard disk substrate accelerator electron gun, such as ultra precision mirror of parts. Can also be used in the manufacture of single crystal diamond eye, brain surgeon's scalpel, thin slicing knives and other bio-medical tools. In addition, single-crystal diamond tool in civilian products processing applications are becoming increasingly widespread, from watch parts, aluminum wet saw blades pistons, jewelry and other processing to pens, high-gloss mirror decorative signs and non-ferrous metal parts processing, its application has entered the machining a variety of areas.
Excellent characteristics of single crystal diamond meet the precision and ultra-precision cutting tool material for most of the requirements and is ideal for precision cutting tool materials. Diamond without internal grain boundaries uniform crystal structure so that the tool cutting edge can theoretically reach the atomic level flatness and sharpness, cut thin cutting ability, high precision, cutting force is small; their high hardness and good wear resistance resistance, corrosion resistance and chemical stability can ensure that the tool has a long life, so that it can continue for a long time of cutting, the tool wear can be reduced because of the diamond discs precision of the parts; its high thermal conductivity can be reduced and the cutting temperature parts thermal deformation.
Single crystal diamond tool in the machining field has an important position, is widely used as a mirror, missiles and rockets navigation gyro, computer hard disk substrate accelerator electron gun, such as ultra precision mirror of parts. Can also be used in the manufacture of single crystal diamond eye, brain surgeon's scalpel, thin slicing knives and other bio-medical tools. In addition, single-crystal diamond tool in civilian products processing applications are becoming increasingly widespread, from watch parts, aluminum wet saw blades pistons, jewelry and other processing to pens, high-gloss mirror decorative signs and non-ferrous metal parts processing, its application has entered the machining a variety of areas.
2013年9月12日星期四
Aluminium and aluminum grinding wheel grinding solutions
An aluminum alloy performance : In the non-ferrous materials used in aluminum is more common materials . It 's grinding , mechanical , physical properties of different types of steel and cast iron and other metal material, it has the following characteristics:
1, the hardness is low intensity : The maximum hardness of aluminum HB110 ~ 120, the maximum tensile sds hammer drill bits strength is generally 20 ~ 30kg/cm2. Low hardness , scratch resistance of a material to plastic deformation or poor , the grinding surface is easily scratched and bumps .
2 , the plastic ductility large , the grinding process produces plastic adhesion , blocking wheel surface ; while a low melting point alloy (660 ~ 780 ℃), the temperature in the grinding zone , the surface of the metal melt , adhesive wheel surface , resulting in the increase of the melt adhesion of the blocking wheel .
3, the linear expansion coefficient: the grinding action of heat , the aluminum alloy is easy to cause deformation of the workpiece , thus affecting the precision grinding of the workpiece surface .
4 , the grinding efficiency is low : in order to overcome the alloy produced in grinding the workpiece thermal deformation , reducing the grinding wheel surface adhesion blocking , to ensure the surface quality , to increase the number of dressing , ordinary steel is about 3 times , thus reducing the grinding productivity.
Second, the choice of grinding wheel aluminum : Aluminum grinding process the biggest problem is the " stick" , " block "
A, aluminum ultra- fine grinding , mirror grinding : Use the "PVA" wheel, equivalent to Japan 's "UB" wheel . Can achieve the effect of the mirror . The grinding wheel is also similar in floor polisher pads structure and ceramics ( see below ) .
B, aluminum and semi- coarse grinding :
1 , abrasives : The brittle and sharp black silicon carbide .
2 , binding agents : Use with high strength ceramic binder , and oil, acid, alkali, corrosion resistance .
3 , particle size : to meet the requirements of the case using the coarse number. Coarse : selection of 36 to 46 # ; grinding : the use of 60-80 ; coarse grit No. relatively small number of participating grinding , grinding, less heat , reducing the deformation of the workpiece and the grinding wheel clogged ;
4 , hardness: should opt for a lower hardness, the grinding wheel to maintain a good self-sharpening . Generally used in H ~ J hardness .
5, the organization : an organization should adopt a more accommodating loose debris , so that the cooling fluid into the grinding zone , enhancing the cooling effect, reducing the grinding zone temperature . Should be used in large pores wheel loose organization , with good grinding effect .
Third, the grinding fluid :
Cleaning performance in a well , good lubrication properties , the cooling performance of the grinding fluid. And grinding fluid supply to the full, to ensure a good cleaning and cooling effect. Manufacturers recommend the use of aluminum alloy special grinding mill grinding fluids, such as Castrol 's ALUSOL series. If conditions do not allow the use of diesel as a grinding fluid can , practice effect is still relatively satisfactory. However, the process of using diesel oil mist prone and volatile . In view of this : You can add a small amount of diesel oil or carbon tetrachloride.
Four , grinding techniques:
1 , the grinding process feed rate should be uniform , especially infeed .
2 , the grinding process aluminum wheel is easy to plug , passivation, so the wheel machined surface is prone to scratches and burns , it needs to be lubricated wheel surface machining : coated with lubricating fluid can be increased , oil, cream. You can use paint wheel diesel , but dirty. You can attach the candle , industrial wax , lubricants, lubricating ointment . Can reduce the congestion caused by burns , scratches and so on.
3 , wheel above the sticky aluminum scrap , you can use stone or the use of a favorable blade. Scratch the sticky crumbs.
4, the wheel must be timely cutting discs trimming , trimming some of the rough , but it must be sharp to prevent clogging .
5 , you can use wheel cutter wheel corners down angle . To facilitate the timely discharge of aluminum scrap .
1, the hardness is low intensity : The maximum hardness of aluminum HB110 ~ 120, the maximum tensile sds hammer drill bits strength is generally 20 ~ 30kg/cm2. Low hardness , scratch resistance of a material to plastic deformation or poor , the grinding surface is easily scratched and bumps .
2 , the plastic ductility large , the grinding process produces plastic adhesion , blocking wheel surface ; while a low melting point alloy (660 ~ 780 ℃), the temperature in the grinding zone , the surface of the metal melt , adhesive wheel surface , resulting in the increase of the melt adhesion of the blocking wheel .
3, the linear expansion coefficient: the grinding action of heat , the aluminum alloy is easy to cause deformation of the workpiece , thus affecting the precision grinding of the workpiece surface .
4 , the grinding efficiency is low : in order to overcome the alloy produced in grinding the workpiece thermal deformation , reducing the grinding wheel surface adhesion blocking , to ensure the surface quality , to increase the number of dressing , ordinary steel is about 3 times , thus reducing the grinding productivity.
Second, the choice of grinding wheel aluminum : Aluminum grinding process the biggest problem is the " stick" , " block "
A, aluminum ultra- fine grinding , mirror grinding : Use the "PVA" wheel, equivalent to Japan 's "UB" wheel . Can achieve the effect of the mirror . The grinding wheel is also similar in floor polisher pads structure and ceramics ( see below ) .
B, aluminum and semi- coarse grinding :
1 , abrasives : The brittle and sharp black silicon carbide .
2 , binding agents : Use with high strength ceramic binder , and oil, acid, alkali, corrosion resistance .
3 , particle size : to meet the requirements of the case using the coarse number. Coarse : selection of 36 to 46 # ; grinding : the use of 60-80 ; coarse grit No. relatively small number of participating grinding , grinding, less heat , reducing the deformation of the workpiece and the grinding wheel clogged ;
4 , hardness: should opt for a lower hardness, the grinding wheel to maintain a good self-sharpening . Generally used in H ~ J hardness .
5, the organization : an organization should adopt a more accommodating loose debris , so that the cooling fluid into the grinding zone , enhancing the cooling effect, reducing the grinding zone temperature . Should be used in large pores wheel loose organization , with good grinding effect .
Third, the grinding fluid :
Cleaning performance in a well , good lubrication properties , the cooling performance of the grinding fluid. And grinding fluid supply to the full, to ensure a good cleaning and cooling effect. Manufacturers recommend the use of aluminum alloy special grinding mill grinding fluids, such as Castrol 's ALUSOL series. If conditions do not allow the use of diesel as a grinding fluid can , practice effect is still relatively satisfactory. However, the process of using diesel oil mist prone and volatile . In view of this : You can add a small amount of diesel oil or carbon tetrachloride.
Four , grinding techniques:
1 , the grinding process feed rate should be uniform , especially infeed .
2 , the grinding process aluminum wheel is easy to plug , passivation, so the wheel machined surface is prone to scratches and burns , it needs to be lubricated wheel surface machining : coated with lubricating fluid can be increased , oil, cream. You can use paint wheel diesel , but dirty. You can attach the candle , industrial wax , lubricants, lubricating ointment . Can reduce the congestion caused by burns , scratches and so on.
3 , wheel above the sticky aluminum scrap , you can use stone or the use of a favorable blade. Scratch the sticky crumbs.
4, the wheel must be timely cutting discs trimming , trimming some of the rough , but it must be sharp to prevent clogging .
5 , you can use wheel cutter wheel corners down angle . To facilitate the timely discharge of aluminum scrap .
Diamond wheel types and points to note
Currently, various varieties of diamond grinding wheel . And in hardness is among the most hard substances. There are artificial and natural . Natural is better than artificial . If the diamond blade hardness is now on the market are divided into grade one to ten , then the diamond belongs to ten . It has many advantages. For example, it can be processed into crafts for people to enjoy , can be processed into the table for people to eat , and so on.
Diamond formation principle is kind of how ? Experts to tell you that when the rock contains a substance called carbon element , which in the rock reaches a certain concentration , a strong high pressure, high temperature conditions , after a long run , and finally it will form a diamond . In modern society , the scientists used these principles diamond , artificial diamond can be successful , such as the development of the diamond industry provides a wide range of applications , and now almost all industrial manufacturers use artificial diamond .
There are many varieties of diamond consumption in accordance with a process can be divided into resin diamond wheel diamond grinding wheel joint , metal joint diamond grinding wheel , sintered diamond grinding wheel, electroplated diamond grinding wheel .
Diamond in the use of the time to pay diamomd core drill bits attention to the following aspects:
First, we put the diamond in place when the clamp , pay attention to avoid hitting diamond wheel appearance.
Second, when the correction of the diamond can not be a single point diamond wheel rest vertically aligned intermediate portion , usually skewed to 10-15 °.
Third , you can not conduct heat things suddenly get cold during the dry correction when correction when necessary to adhere to the spacing of the two moments .
Fourth, in the beginning when the rest to find out the location of the highest point of the grinding wheel to be repaired rectification.
Fifth, pay attention to the rest of the process can not stay in one place for too long, will stay long wheel looks polished diamond heat damage occurs rest of things. To change at least once a day to concrete grinding wheel break things.
Sixth, have been damaged , worn something , you can not use a long time , found it to be promptly repaired or replaced.
Seventh, the rest things , you can not pick too big or too small for the amount of the repair in addition to repairs. If you can have a choice , I suggest selecting the same horizontal speed to repair .
Diamond formation principle is kind of how ? Experts to tell you that when the rock contains a substance called carbon element , which in the rock reaches a certain concentration , a strong high pressure, high temperature conditions , after a long run , and finally it will form a diamond . In modern society , the scientists used these principles diamond , artificial diamond can be successful , such as the development of the diamond industry provides a wide range of applications , and now almost all industrial manufacturers use artificial diamond .
There are many varieties of diamond consumption in accordance with a process can be divided into resin diamond wheel diamond grinding wheel joint , metal joint diamond grinding wheel , sintered diamond grinding wheel, electroplated diamond grinding wheel .
Diamond in the use of the time to pay diamomd core drill bits attention to the following aspects:
First, we put the diamond in place when the clamp , pay attention to avoid hitting diamond wheel appearance.
Second, when the correction of the diamond can not be a single point diamond wheel rest vertically aligned intermediate portion , usually skewed to 10-15 °.
Third , you can not conduct heat things suddenly get cold during the dry correction when correction when necessary to adhere to the spacing of the two moments .
Fourth, in the beginning when the rest to find out the location of the highest point of the grinding wheel to be repaired rectification.
Fifth, pay attention to the rest of the process can not stay in one place for too long, will stay long wheel looks polished diamond heat damage occurs rest of things. To change at least once a day to concrete grinding wheel break things.
Sixth, have been damaged , worn something , you can not use a long time , found it to be promptly repaired or replaced.
Seventh, the rest things , you can not pick too big or too small for the amount of the repair in addition to repairs. If you can have a choice , I suggest selecting the same horizontal speed to repair .
2013年9月11日星期三
affect the diamond tool wear several reasons
Determine the tool cutting tool material is a fundamental factor for the processing efficiency, processing quality,
Processing costs as well as a great influence on tool life. The more rigid tool material, the better the bandsaw blades wear resistance, the higher the hardness, the lower the impact toughness, the material is hard. Hardness and toughness is a contradiction, but also the tool material that should overcome a key. For graphite tools, ordinary coating can be the appropriate choice in the selection of the relative toughness a little better, which is slightly higher cobalt content, for the diamond-coated graphite tool, you can choose in the selection hardness is relatively better, that is, slightly lower solids content.
2, the tool geometry graphite select the appropriate tool geometry, helps to reduce tool vibration, in turn, is not easy to collapse graphite piece missing; (a) rake angle, with a negative rake angle machining graphite, the tool edge mouth better strength, resistance to concrete cutting blade impact and friction performance, along with the decrease of the absolute value of the negative rake angle, flank wear area changed little, but the overall decreasing trend, with positive rake angle machining, with the former angle increases, the tool edge strength is weakened, but led to increased flank wear. Negative rake angle machining, cutting resistance, increasing the cutting vibration, using a large positive rake angle machining, tool wear serious, cutting vibration as well. (2) After the corner, if after the angle increases, the tool edge strength is reduced, the flank wear area increases. After the tool angle is too large, the cutting vibration strengthened. (3) helix angle, helix angle is small, while the same cut on the cutting edge of the blade length the longest piece of graphite, the maximum cutting resistance, the cutting tool to withstand the maximum impact force, and thus tool wear, cutting force and cutting vibration are the largest . When the helix angle to the larger, the direction of the milling force large degree of deviation from the workpiece surface, chipping graphite material due to the impact caused by the cutting intensified, and thus tool wear, cutting force and cutting vibration it has also increased. Therefore, the tool angle change on the tool wear, cutting force and cutting vibration is rake angle, clearance angle and helix angle integrated generated, so the choice we must pay more attention. Through the processing characteristics of the graphite material lot of scientific tests, PARA optimize the tools that the tool geometry, so that the overall cutting tool is greatly increased. Three, coated diamond coated tool cutter high hardness, good wear resistance and low coefficient of friction, at this stage diamond-coated graphite machining tool is the best choice, but also the tool that best reflects the superior performance of graphite; diamond-coated carbide tools advantage is the combination of natural diamond carbide hardness and strength and fracture toughness; But in the domestic diamond coating technology is still in its infancy, as well as the cost of inputs are big, diamond coating so there is not much development in the near future, but we can on the basis of the common tool to optimize the angle of the tool, and the material so as to improve the structure of the conventional coatings in a way which can be processed in graphite Applications. Diamond-coated tools and the general geometry of coated tools are essentially different, so the design of diamond coated tools, due to the particularity of graphite machining, its geometry can be properly amplified volume becomes large cut groove, it will not reduce the wear resistance of the tool edge port; for ordinary TiAlN coating, although the ratio of its uncoated tool wear significantly improved, but compared to diamond coating, in the processing of its geometry graphite should be appropriate to put a small, in order to increase its wear resistance. The diamond coating, the coating of the world many companies invest a lot of manpower and material resources to research and development related to coating technology, but so far, foreign companies mature and economical coating confined to Europe; PARA as a subsection excellent graphite machining tool, also using the circular blades world's most advanced coating technology for surface treatment of the tool, in order to ensure that the processing life while ensuring the economic and practical tool. 4, the tool edge enhancement tool edge passivation technology is one not to be widespread attention, but is a very important issue. After the diamond wheel grinding carbide tool edge, there is a different degree of micro-gap (ie micro chipping and saw cut). Graphite speed cutting machining tool performance and stability of the proposed higher requirements, especially in the coating of diamond coated tools must elapse before the knife edge passivation treatment in order to ensure the robustness and service life of the coating. Passivation purpose is to solve the above tool, the tool cutting edge grinding gap microscopic defects, to reduce or eliminate the peak value, to smooth smooth, strong and durable both sharp object.
Processing costs as well as a great influence on tool life. The more rigid tool material, the better the bandsaw blades wear resistance, the higher the hardness, the lower the impact toughness, the material is hard. Hardness and toughness is a contradiction, but also the tool material that should overcome a key. For graphite tools, ordinary coating can be the appropriate choice in the selection of the relative toughness a little better, which is slightly higher cobalt content, for the diamond-coated graphite tool, you can choose in the selection hardness is relatively better, that is, slightly lower solids content.
2, the tool geometry graphite select the appropriate tool geometry, helps to reduce tool vibration, in turn, is not easy to collapse graphite piece missing; (a) rake angle, with a negative rake angle machining graphite, the tool edge mouth better strength, resistance to concrete cutting blade impact and friction performance, along with the decrease of the absolute value of the negative rake angle, flank wear area changed little, but the overall decreasing trend, with positive rake angle machining, with the former angle increases, the tool edge strength is weakened, but led to increased flank wear. Negative rake angle machining, cutting resistance, increasing the cutting vibration, using a large positive rake angle machining, tool wear serious, cutting vibration as well. (2) After the corner, if after the angle increases, the tool edge strength is reduced, the flank wear area increases. After the tool angle is too large, the cutting vibration strengthened. (3) helix angle, helix angle is small, while the same cut on the cutting edge of the blade length the longest piece of graphite, the maximum cutting resistance, the cutting tool to withstand the maximum impact force, and thus tool wear, cutting force and cutting vibration are the largest . When the helix angle to the larger, the direction of the milling force large degree of deviation from the workpiece surface, chipping graphite material due to the impact caused by the cutting intensified, and thus tool wear, cutting force and cutting vibration it has also increased. Therefore, the tool angle change on the tool wear, cutting force and cutting vibration is rake angle, clearance angle and helix angle integrated generated, so the choice we must pay more attention. Through the processing characteristics of the graphite material lot of scientific tests, PARA optimize the tools that the tool geometry, so that the overall cutting tool is greatly increased. Three, coated diamond coated tool cutter high hardness, good wear resistance and low coefficient of friction, at this stage diamond-coated graphite machining tool is the best choice, but also the tool that best reflects the superior performance of graphite; diamond-coated carbide tools advantage is the combination of natural diamond carbide hardness and strength and fracture toughness; But in the domestic diamond coating technology is still in its infancy, as well as the cost of inputs are big, diamond coating so there is not much development in the near future, but we can on the basis of the common tool to optimize the angle of the tool, and the material so as to improve the structure of the conventional coatings in a way which can be processed in graphite Applications. Diamond-coated tools and the general geometry of coated tools are essentially different, so the design of diamond coated tools, due to the particularity of graphite machining, its geometry can be properly amplified volume becomes large cut groove, it will not reduce the wear resistance of the tool edge port; for ordinary TiAlN coating, although the ratio of its uncoated tool wear significantly improved, but compared to diamond coating, in the processing of its geometry graphite should be appropriate to put a small, in order to increase its wear resistance. The diamond coating, the coating of the world many companies invest a lot of manpower and material resources to research and development related to coating technology, but so far, foreign companies mature and economical coating confined to Europe; PARA as a subsection excellent graphite machining tool, also using the circular blades world's most advanced coating technology for surface treatment of the tool, in order to ensure that the processing life while ensuring the economic and practical tool. 4, the tool edge enhancement tool edge passivation technology is one not to be widespread attention, but is a very important issue. After the diamond wheel grinding carbide tool edge, there is a different degree of micro-gap (ie micro chipping and saw cut). Graphite speed cutting machining tool performance and stability of the proposed higher requirements, especially in the coating of diamond coated tools must elapse before the knife edge passivation treatment in order to ensure the robustness and service life of the coating. Passivation purpose is to solve the above tool, the tool cutting edge grinding gap microscopic defects, to reduce or eliminate the peak value, to smooth smooth, strong and durable both sharp object.
2013年9月10日星期二
diamond tool chucking three ways
We all know that a diamond tool chucking quality directly affects the performance of diamond tools , diamond tools described below under three chucking method:
1 bonding method
Epoxy adhesive used is an organic binder such as gum or 502 will be bonded diamond blade arbor wet diamond polishing pads with diamond segments to match the size of the groove. This method is simple , does not require special equipment and fixtures, get a certain bond strength . When the tool requires grinding , you need to first bond with a solvent such as acetone gel open , right diamond blade for grinding and re- bonded to the arbor . In addition, diamond blade bonding process is more difficult to ensure positional accuracy .
(2) Setting
Mosaic Law is the first diamond blade with sintered metal powder together , then head through the diamond plate mechanically fixed to the arbor .
3 Brazing Method
By brazing method directly welded diamond cutting tool has been a popular concern. Since diamond has a high chemical stability , it is difficult chemical reaction with other metals, and the welding , therefore , to reliably achieve the diamond is firmly connected with the metal , a diamond tool manufacturing technology solved difficulties and 4 inch saw blades research.
diamond wheel safekeepingDiamond grinding wheel has a unique performance characteristics, we should also be stored in the custody properly , let's take a look at the diamond grinding wheel should be stored at :
Do not contact with corrosive gases and liquids , especially resin bond diamond grinding wheel, resin contact with corrosive chemicals cause the performance change.
Diamond grinding wheel in the handling storage, be careful not to collide , resin bonded grinding wheel and ceramic bonded grinding wheel after a collision prone gap, rupture.
Do not use the diamond wheel into , they should immediately wash the coolant to keep the wheel surface clean to prevent further oil coolant inside wheel , causing the wheel again when the imbalance .
Try stored at room concrete diamond blades temperature, diamond grinding wheel , avoid contact with high temperature or low temperature .
Due to the effects of aging resin , resin diamond wheels generally do not exceed one year shelf life , otherwise , it will affect the normal use. If you must use , must then be related to safety testing .
1 bonding method
Epoxy adhesive used is an organic binder such as gum or 502 will be bonded diamond blade arbor wet diamond polishing pads with diamond segments to match the size of the groove. This method is simple , does not require special equipment and fixtures, get a certain bond strength . When the tool requires grinding , you need to first bond with a solvent such as acetone gel open , right diamond blade for grinding and re- bonded to the arbor . In addition, diamond blade bonding process is more difficult to ensure positional accuracy .
(2) Setting
Mosaic Law is the first diamond blade with sintered metal powder together , then head through the diamond plate mechanically fixed to the arbor .
3 Brazing Method
By brazing method directly welded diamond cutting tool has been a popular concern. Since diamond has a high chemical stability , it is difficult chemical reaction with other metals, and the welding , therefore , to reliably achieve the diamond is firmly connected with the metal , a diamond tool manufacturing technology solved difficulties and 4 inch saw blades research.
diamond wheel safekeepingDiamond grinding wheel has a unique performance characteristics, we should also be stored in the custody properly , let's take a look at the diamond grinding wheel should be stored at :
Do not contact with corrosive gases and liquids , especially resin bond diamond grinding wheel, resin contact with corrosive chemicals cause the performance change.
Diamond grinding wheel in the handling storage, be careful not to collide , resin bonded grinding wheel and ceramic bonded grinding wheel after a collision prone gap, rupture.
Do not use the diamond wheel into , they should immediately wash the coolant to keep the wheel surface clean to prevent further oil coolant inside wheel , causing the wheel again when the imbalance .
Try stored at room concrete diamond blades temperature, diamond grinding wheel , avoid contact with high temperature or low temperature .
Due to the effects of aging resin , resin diamond wheels generally do not exceed one year shelf life , otherwise , it will affect the normal use. If you must use , must then be related to safety testing .
2013年9月9日星期一
vitrified diamond wheel diamond and ceramic binder with common characteristics
Diamond grinding wheel is grinding carbide , glass, ceramics , precious stones high brittle materials effects tools . In recent years , with high-speed grinding ultra -precision grinding technology developed rapidly , put a higher demand on the grinding wheel , ceramic diamond cbn wheel resin bonded grinding wheel has been unable to meet production needs , because of its combination of metal bonded grinding wheel , high strength, good formability , long life and other significant characteristics of the production has been widely used. Metal bond diamond wheel manufacturers in different ways according to a major sintering , plating two types. In order to give full play to the role of super abrasive abroad from the 20th century, the early 90s with a high temperature brazing process to develop a new wheel, ie high temperature brazing monolayer superabrasive grinding wheels, this wheel is still in the current domestic research and development stage . Ceramic diamond wheel vitrified diamond grinding wheel with diamond and vitrified common characteristics , and general corundum , silicon carbide grinding wheel compared to its grinding force , grinding temperature is relatively low, the wheel wear is relatively small ; can be adapted to each species coolant effect; grinding wheel is good shape retention , high precision grind the diamond blade circular saw workpiece ; wheel has more pores , grinding and heat conducive chip , clogging , easy to burn the workpiece ; wheel good self-sharpening , finishing a long time interval , trimming easier . Therefore, vitrified diamond grinding wheel used in some foreign countries is increasing. Sintered diamond wheel
Sintered metal-bonded grinding wheels mostly bronze and other metals as a binder , with the manufacture of high-temperature sintering method , which combines high strength, good formability , high temperature , thermal conductivity, good wear resistance, long life, can withstand greater loads. Electroplated diamond grinding wheel : ① plating process is simple, less investment, ease of manufacture ; ② without dressing , easy to use ; ③ monolayer structure determines that it can achieve a high work rate, currently abroad has reached 250 ~ 300m / s; ④ Although only a single layer of diamond , but there is still enough life ; ⑤ for high accuracy, roller wheels, electroplated 4 inch saw blades unique manufacturing method. Precisely because of these advantages , plating wheel speed, ultra- high speed grinding occupy undisputed dominance.
Sintered metal-bonded grinding wheels mostly bronze and other metals as a binder , with the manufacture of high-temperature sintering method , which combines high strength, good formability , high temperature , thermal conductivity, good wear resistance, long life, can withstand greater loads. Electroplated diamond grinding wheel : ① plating process is simple, less investment, ease of manufacture ; ② without dressing , easy to use ; ③ monolayer structure determines that it can achieve a high work rate, currently abroad has reached 250 ~ 300m / s; ④ Although only a single layer of diamond , but there is still enough life ; ⑤ for high accuracy, roller wheels, electroplated 4 inch saw blades unique manufacturing method. Precisely because of these advantages , plating wheel speed, ultra- high speed grinding occupy undisputed dominance.
2013年9月8日星期日
Mounted grinding wheel grinding power
The industry is well known, also called page flap wheels from grinding wheel. Abrasive flap wheels from pouring adhesive made by connecting block for connecting power tools emery cloth around the center point of the shaft and radial rendered adhesive on the diamond blade circular saw connection block peripheral wall formed with shaft rounds. Wherein said adhesive further has a bottom abrasive inner cavity of the sleeve with the outer sleeve is poured adhesive head connection block is embedded, the cavity within the body possessed pass into the screw shaft.
The product has a grinding power, long life, grinding sharp, long-lasting and strong, high tensile strength cloth, grinding pressure, good effect, high production efficiency, field 14 inch saw blade of application in various industries. Mainly used in a variety of metallic and non-metallic complex surface, deep hole polishing and finishing, especially suitable for uneven surfaces and side grinding and polishing.
Independently developed a chuck one thousand rounds, petiole axle wheel, one hundred rounds, polishing wax, flax metal drill bits wheel, cloth wheel, dual dishwashers, etc. shaped products coated abrasives.
The product has a grinding power, long life, grinding sharp, long-lasting and strong, high tensile strength cloth, grinding pressure, good effect, high production efficiency, field 14 inch saw blade of application in various industries. Mainly used in a variety of metallic and non-metallic complex surface, deep hole polishing and finishing, especially suitable for uneven surfaces and side grinding and polishing.
Independently developed a chuck one thousand rounds, petiole axle wheel, one hundred rounds, polishing wax, flax metal drill bits wheel, cloth wheel, dual dishwashers, etc. shaped products coated abrasives.
2013年9月6日星期五
selection of ceramic tile eight note
Glazed glaze should be smooth and delicate; shiny surface should be crystal clear glossy, matte should be soft and comfortable. A few pieces of ceramic tile color will fight together, look carefully at the light, a good product color is very small, consistent color between products; rather bad products larger color, color shades between the products.
Specifications available bandsaw blades caliper measurements. Good product specification deviation is small, after paving the product uniform, cracks between the blocks straight, good decorative effect. Poor product specifications large deviation between products of varying sizes. Deformation can be visually observed directly. Requirements products side face flat, so that the product of small deformation, convenient construction, after paving brick flat appearance.
Pattern color patterns to detailed, realistic, there is no obvious lack of color, disconnection, dislocation and other defects.
Hue hue outside the wall should be concrete cutting blade in harmony with the surrounding environment, high-rise buildings generally should not use a white or light-colored wall decorative bricks too, in order to avoid the building lacks texture; in interior, floor tiles and wall tiles tones To support each other. To sanitary ware bathroom complete the main floor tiles and a variety of accessories, including hardware and other supporting materials, quality, grade should be its coherence.
Durability of ceramic tiles paving after a long time without cracking, no distortion, no smoke pollution. You can use the following simple method to determine: ink drops in the back of the product to see whether the ink automatically spread. In general, the slower the ink spread, the water absorption of the smaller, more excellent turbo diamond blade intrinsic quality, durable products the better; otherwise perishable products the worse.
Anti-skid ceramic tiles skid resistance is very important. Generally in the bathroom and kitchen bathing place should be selected with anti-skid ceramic tiles.
Specifications available bandsaw blades caliper measurements. Good product specification deviation is small, after paving the product uniform, cracks between the blocks straight, good decorative effect. Poor product specifications large deviation between products of varying sizes. Deformation can be visually observed directly. Requirements products side face flat, so that the product of small deformation, convenient construction, after paving brick flat appearance.
Pattern color patterns to detailed, realistic, there is no obvious lack of color, disconnection, dislocation and other defects.
Hue hue outside the wall should be concrete cutting blade in harmony with the surrounding environment, high-rise buildings generally should not use a white or light-colored wall decorative bricks too, in order to avoid the building lacks texture; in interior, floor tiles and wall tiles tones To support each other. To sanitary ware bathroom complete the main floor tiles and a variety of accessories, including hardware and other supporting materials, quality, grade should be its coherence.
Durability of ceramic tiles paving after a long time without cracking, no distortion, no smoke pollution. You can use the following simple method to determine: ink drops in the back of the product to see whether the ink automatically spread. In general, the slower the ink spread, the water absorption of the smaller, more excellent turbo diamond blade intrinsic quality, durable products the better; otherwise perishable products the worse.
Anti-skid ceramic tiles skid resistance is very important. Generally in the bathroom and kitchen bathing place should be selected with anti-skid ceramic tiles.
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