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Add: No.261, Hushan South Road, Xiaozhi Town, Linhai City, Zhejiang Province, China
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Main Features Of Abrasive
Jun 01, 2018

Abrasive:

Abrasives used mainly abrasive brown corundum, white corundum, black silicon carbide and green silicon carbide.

Corundum has high toughness and is suitable for grinding materials with high tensile strength such as carbon steel, alloy steel, malleable cast iron and hard bronze. White corundum has a higher hardness than brown corundum, and it has good cutting performance. It is suitable for the grinding process of hardened steel, high carbon steel, high-speed tools and other materials.

Black silicon carbide has high hardness, brittleness and sharpness. It is suitable for grinding and cutting materials with low tensile strength, such as cast iron, glass, ceramics, stone and refractory.

Green silicon carbide is higher in purity than black silicon silicon. Suitable for grinding hard and brittle materials such as carbide, optical glass, precious stones, and agate.



Particle size: The choice of particle size mainly depends on the requirements of the workpiece surface machining accuracy and production efficiency. Coarse-grained and medium-grained abrasives are suitable for roughing and semi-finishing, while fine-grained abrasives are used for finishing and superfinishing. The physical and mechanical properties to be ground are also the factors that determine the grain size. Materials with low hardness, high ductility and toughness should be processed with coarse-grained abrasive tools, while those with high hardness and brittleness should use fine-grained abrasive tools.



Organization: The organization of the abrasive tool refers to the volumetric ratio of the abrasive, the binder, and the pores that make up the abrasive. Abrasive less, large porosity is called loose structure, and vice versa is close organization. The closely-arranged abrasive tools should be used for fine grinding, forming grinding, and workpieces with small machining surfaces and high surface finish requirements. Medium-sized abrasives are widely used for the grinding of general residual workpieces. Abrasives for loose structures are suitable for grinding of large contact surfaces such as flat surfaces and internal circles, as well as grinding of workpieces that are sensitive to expansion and soft materials.



Hardness: The strength at which the abrasive on the abrasive surface is held together by the binder. Or under the action of external forces, the degree of difficulty in shedding is called the hardness of the abrasive.


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    Linhai Zhengda Machinery Co.,Ltd
    Add: No.261, Hushan South Road, Xiaozhi Town, Linhai City, Zhejiang Province, China
    Contact: Kevin
    Tel: +86-576-85889981
    Mob: +8613666497878
    E-mail: zhengda@cnzdkj.com

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