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Why be coated blade

Views:4     Author:Site Editor     Publish Time: 2017-04-03      Origin:Site

Coated blade is a new blade material appeared nearly 20 years, the development of the blade is an important breakthrough, is an effective measure to solve the contradiction between the hardness, wear resistance and strength and toughness of the blade material. Coated inserts in some of the toughness of cemented carbide or high speed steel sheet substrate coated with a layer of hard wear high melting metal compound obtained. Commonly used coating materials are TiC, TiN and Al2O3 and the like. The first time in the early 1970s cemented carbide substrate coated with a layer of titanium carbide (TiC), put ordinary carbide cutting speed increased from 80m / min to 180m / min. 1976 has emerged 

titanium carbide - aluminum double coated carbide, the cutting speed increased to 250m / min. 1981 has emerged titanium carbide - alumina - cobalt nitride coated carbide cutting speed to make 300m / min.

High speed shearing blade coating on steel substrate mostly on TiN, common physical vapor deposition method (PVD method) coating, generally used for drills, taps, milling cutters, and other complex hob blade coating thickness of several microns coating hardness up to 80HRC, equivalent to the general carbide hardness, durability can be increased 2-5 times, cutting speed can be increased 20% -40% o

Carbide coating is on the toughness of the cemented carbide substrate coated with a high wear several microns to hundreds of microns thick, hard melting metal compound, generally by chemical vapor deposition (CVD method) . Our Zhuzhou Cemented Carbide factory coated carbide coating thickness up to 9μm, surface hardness up 2500-4200HV.