China high efficient grinding disc The
High efficient metal abrasive disc consists of three parts: Abrasives, binders, and pores.
1. Abrasive: is the main grinding part of the grinding wheel, with sharp edges and corners, that is, very small cutting edges, to cut the workpiece, abrasive is often very hard materials, usually compounds, such as diamond (chemical composition is silicon carbide), corundum (chemical composition is aluminum oxide), diamond, etc., the most common is diamond. Rigid sand wheels and corundum grinding wheels.
2. Binder: According to different uses of grinding wheels, there are ceramics, resins, rubber, metal and so on. Its main function is to bond the abrasive together to form a certain shape of grinding wheel.
3. Porosity: Porosity is also the main component of the grinding wheel. The purpose of the pore is to reduce the bonding strength of the binder. When grinding steel chips are stored, when the sharp part of the small abrasive is worn off, it will peel off because of the decrease of the bonding strength caused by the pore and expose new sharp abrasive particles, which is conducive to further grinding.
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