2013年9月21日星期六

How emery cloth sandpaper belt reel made ​​

Industrial most sandpaper belt sandpaper belt abrasive cloth roll , abrasive belt is a high hardness and mechanical strength of a particulate material, which is directly used for the manufacture of abrasive or grinding and polishing as a sandpaper sand with emery cloth roll  cutting discs must have the basic features , in general, should meet the following five requirements :
Sandpaper belt abrasive cloth roll hardness must be higher than the hardness of the object to be processed , otherwise , can not be achieved grinding requirements. Modest crush resistance and self -sharpening sandpaper belt abrasive cloth roll have appropriate crush resistance and self-sharpening sex , during grinding , abrasive order love with a compressive, flexural , impact and other stresses , such as its crush resistance is too low, grinding abrasive quickly broken , it is difficult for effective grinding : on the contrary , after blunt abrasive nor broken, not a new blade , so that the grinding unable to proceed, therefore , requires grit blunt after grinding under stress , self- broken, exposing new sharp blade , the grinding process continues . 3 . Sandpaper belt abrasive cloth roll should have good thermal stability
Grinding work, often produce large amounts of heat , high temperatures can be achieved locally as a sandpaper belt abrasive cloth roll at high temperature should be able to maintain a certain hardness and strength , for example, the highest temperature hardness of diamond , but more than 800 ℃ will be carbonized into graphite, the sharp decline in hardness and  tile cutting blades strength , which to a certain extent, limit the application of diamond .
4 . Sandpaper belt abrasive cloth roll should have a certain chemical stability c9T Huizhou HTC grinding plant material
Sandpaper belt abrasive cloth roll with the object to be processed is not easy to produce a chemical reaction . Term practice has shown that the grinding is not a simple mechanical process in which the presence of certain chemical reactions , such as silicon carbide sandpaper belt abrasive cloth roll steel processing occurs when following reaction : SiC ( solid ) +4 Fe ( liquid ) → FeSi ( solid ) + Fe3C ( solid) as sandpaper belt abrasive cloth roll and being the processing target a chemical reaction, the abrasive sandpaper belt inherent mechanical properties of the volume change, which affecting the grinding effect .
5 . Ease of processing into particles of different sizes is the use of the abrasive grinding surface composed of many particles to carry out the cutting edge , so the process should sandpaper belt abrasive cloth roll to the desired particle size . Some substances , such as  tamping rammer cemented carbide Although high hardness, but because of its toughness is large, compared with sandpaper belt abrasive cloth roll is difficult processed into granules, therefore , not suitable for manufacturing emery cloth sandpaper belt reel .

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