a. When grinding soft materials, choose a harder grinding wheel. When grinding hard materials, choose a soft grinding wheel.high performance cutting disc
b. When grinding soft and tough non-ferrous metals, the hardness should be selected to be softer;
c. Grinding materials with poor thermal conductivity should be selected as softer grinding wheels;
d. When the end face grinding is more than the circumferential grinding, the hardness of the grinding wheel should be softer;
e. Under the same grinding conditions, the hardness of the resin bond grinding wheel is 1~2 lower than that of the ceramic bond grinding wheel;
f. When the grinding wheel rotates at a high speed, the hardness of the grinding wheel can be softly 1~2 small;
g. Grinding with coolant is 1~2 less than the hardness of the grinding wheel when dry grinding. ,
The choice of binder should be considered in terms of grinding methods, speed of use and surface processing requirements.
The most commonly used wheel binders are ceramic binder (V) and resin binder (B).
The ceramic bond is an inorganic binder with stable chemical properties, good heat resistance, good corrosion resistance and high porosity. The grinding wheel made of this binder has high grinding efficiency and low wear, and can better maintain the geometry of the grinding wheel. , the most widely used. Grinding wheel high-tech WeChat: 2105551090 is suitable for grinding ordinary carbon steel, alloy steel, stainless steel, cast iron, hard alloy, non-ferrous metals, etc. However, the ceramic bond grinding wheel is relatively brittle and cannot be subjected to severe vibration. Generally only use at speeds up to 35 m / s.
The resin binder is an organic binder. The binder has high strength, certain elasticity, low heat resistance, good self-sharpness, simple production and short cycle time. It can manufacture grinding wheels with working speeds higher than 50 m/s and very thin grinding wheels. Its application range is second only to ceramic bonding agents, and it is widely used in rough grinding, rough grinding, cutting and free grinding, such as grinding steel ingots, casting burrs and so on. It can manufacture high-speed, high-gloss grinding wheels, heavy-duty, cutting and grinding wheels with special requirements.