diamond core drills, not only in geological exploration has an important position, but also because it has got speed, stone loss, does not destroy the surrounding environment and other unique advantages and is widely used in marble, granite, reinforced concrete walls of the drill hole
PCD grinding wheel
2013年9月25日星期三
alloy circular saw blades to improve the life of a number of factors
the matrix requires the selection of materials is good enough base heat-resistant material, high toughness, strength, stress, deformation and side jump smaller base, the base of each one grinding wheels tooth angle seat depth matrix consistent hole tolerances and high precision, material density, thickness, uniform hardness. 2, try to use low-temperature welding process tooth silver electrode and flux selection and good mobility, to prevent the room temperature quenching dips, welding gear temperature in principle allowed to exceed 750 °, to ensure that every weld tooth tooth tooth welding temperature uniformity and repeat, Try to use bilateral high-frequency generator heating the alloy and the substrate temperature remained the same, to sds hammer drill bits ensure welded into the oven to eliminate welding stress and the alloy crystal refinement, and keep the weld strength. 3, precision grinding tool life and process using the key in the blade, the blade is not grinding in place various surface resistance, obviously chosen too coarse grinding wheel grinding wheel marks, traces of grinding wheel misalignment, angular asymmetry, any faces two flank , wheel impact blade retraction pressure belt, jump to maintain the minimum diameter runout side rake angle requirements of small, back rake should not use too large, the correct selection of grinding direction of carbide grinding wheels rotation, and the radial cutting force from low to high, grinding two side angle grinding process first, and then after grinding angle and back rake, rake angle and blade rake angle is the last part of tool manufacture, process violation in front of the tool will bring to the quality of results. 4, to strengthen pre-shipment inspection tool each process must develop a reasonable process, according to the strict and meticulous inspection process, affecting the quality of the reason is very complex tool, bad checks before the process after the process no end of trouble, as long as careful analysis of all factors that can be solved .
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