What is the filling material of the grinding wheel? Some people may not know this. So, the wheel manufacturer will introduce it to you.
Grinding wheel is the main grinding tool in grinding. A abrasive wheel is a porous body made by adding a binder to the abrasive, pressing the blank, drying and baking. Due to differences in grinding materials, binders and manufacturing processes. The characteristics of abrasive wheels also vary greatly. This has a major impact on grinding quality, productivity and economy.
To improve wheel lubrication or prevent workpiece tree material from sticking to abrasive grains during grinding. Auxiliary materials can be mixed in the grinding wheel during the manufacturing process. Alternatively, the filler material can be added by pressing, impregnation, etc. after manufacture. For example, when grinding stainless steel, cryolite has a melting point of 959°C. Cryolite can melt and surround the work surface of the grinding wheel to prevent metal from sticking. Other filler materials such as iron sulfide, polyvinyl chloride, boron silver, etc. Highly chemically active gases can be decomposed under the action of grinding heat. These gases react chemically with the workpiece surface to form a thin film. Play a role in preventing sticking. In addition, such as graphite and boron silver.
Periodically coat the surface of the grinding wheel with polyvinylidene fluoride or molybdenum disulfide under certain pressure. A film with a low coefficient of friction can be formed on the contact surface to improve the grinding state. This substance can be considered a solid lubricant or another form of abrasive wheel filler.
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