Grinding Wheel consists of three parts: abrasive, binder (binder), pore
1, abrasive: grinding wheel is the main grinding part, with sharp edges and corners, that is, a small cutting edge to cut the workpiece, the abrasive is often a very hard material, usually compounds, such as silicon carbide (chemical composition is silicon carbide) , Corundum (chemical composition is aluminum oxide), diamond, the most common is the emery wheel and corundum wheel.
2, Binder: According to different use of the wheel are ceramic, resin, rubber, metal, etc., its main role is to bond abrasive together to form a certain shape of the wheel.
3, Porosity: Porosity is also a major part of the wheel, the purpose of the pores is to reduce the bonding strength of the binder, storage grinding grinding down the steel scrap, when a small part of the sharp abrasive abrasive, it will lead to the combination of pores The intensity decreased and peeling, exposing new sharp abrasive, conducive to further grinding.
