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86-17719947765One of the important properties of abrasive is its hardness, it must be harder than the material to be processed, commonly used Mohs hardness tester to determine the hardness of various abrasives. Another important property of abrasives is toughness. This property can be controlled by changing the mixing amount, purity, particle size and crystal structure of the raw material to suit various applications. For the manufacture of abrasive products, most of the raw materials need to be crushed and screened. The screening size should be 4 ~ 900, that is, about 6 mm to 6 μm in diameter or finer. Grinding wheel is the main abrasive product, which is composed of abrasive and binder mixed in a certain proportion and sintered after die pressing. After that, it must be tested for shaping, balancing and overspeed.
The appearance of CBN abrasive leads to the revolution of grinding technology. It is converted from hexagonal boron nitride under the condition of high temperature and ultra-high pressure. It can withstand the high temperature of 1300℃~1400℃. It is a good abrasive for grinding hardened steel, high speed steel, high strength steel, stainless steel and heat resistant alloy and other metals with high hardness and toughness.
Abrasives are widely used in industry, especially when machining high-precision or low-roughness parts or particularly hard parts, abrasives and abrasives are essential. In the automobile manufacturing industry, the piston ring and cylinder, valve and seat close coordination, transmission and gear precision, etc., must be processed with abrasive and abrasive tools to ensure.
