The composition of the belt
Abrasive belt is a kind of belt-shaped tool that can be used for grinding and polishing, which is made by using adhesive to bond abrasives on flexible materials such as paper and cloth. It is a main form of coated abrasives. Its basic composition is: substrate, abrasive and binder, collectively known as the three elements of the belt.
Classification of abrasive belts
Due to the differences in the three major components of the abrasive belt and various characteristic factors, the abrasive belt can be divided into many varieties according to different grinding objects, grinding conditions and grinding requirements.
Abrasive particles on the belt
It has stronger cutting ability than grinding wheel abrasive grains, so its grinding efficiency is very high. The high efficiency of abrasive belt grinding is manifested in its high removal rate, grinding ratio (the ratio of the weight of the removed workpiece to the weight of the abrasive wear) and the power utilization rate of the machine tool. By 2012, the known removal rate of abrasive belt grinding on steel has reached 700mm3/mm·s, even surpassing turning or milling. The grinding ratio of the abrasive belt greatly exceeds that of the grinding wheel, up to 300:1, or even 400:1, while the grinding wheel is only 30:1. The power utilization rate of abrasive belt grinders has reached 80% in the early days of abrasive belt grinding, ahead of other machine tools, and now it is as high as 96%, compared to only 52% for grinding wheel grinders, 57% for milling machines, and 65% for lathes. %, so belt grinding is still a good energy-saving processing technology.
