What kind of alloy is the car knife used?
Tungsten cobalt class (WC + Co) carbide (YG) is composed of WC and Co, it has high bending strength toughness, good thermal conductivity, but poor heat resistance and abrasion resistance, mainly used for processing cast iron and nonferrous metals. Fine grain of YG carbide (such as YG3X, YG6X), in the cobalt content in phase at the same time, its high hardness, wear resistance than YG3, YG6, strength and toughness is a bit poor, suitable for processing hard cast iron, austenitic stainless steel, heat-resistant alloy, hard bronze, etc.
Cobalt tungsten titanium tantalum class (WC + TiC TaC + + Co)) in YT cemented carbide (YW) class carbide added TaC (NbC), on the basis of improving the bending strength, impact toughness and wear resistance, high temperature hardness, antioxidant capacity. It can process steel and process cast iron and non-ferrous metals. This is often called the universal hard alloy (also known as the universal carbide). It is mainly used to process refractory materials such as heat resistant steel, high manganese steel and stainless steel.
Cobalt tungsten tantalum (WC + TaC + Co) carbide (YA) on the basis of class YG carbide added TaC (NbC), improve the normal temperature, high temperature hardness and strength, thermal shock and abrasion resistance, can be used in the processing of cast iron and stainless steel.
Titanium tungsten cobalt class (WC + TiC + Co) carbide (YT) due to the hardness of TiC and melting point were higher than the WC, so compared with YG, the hardness, wear resistance and increase red hardness, bonding temperature, oxidation resistance is strong, and will generate TiO 2, at high temperatures may reduce bonding. But the thermal conductivity is poor, the bending strength is low, so it is suitable for the flexible materials such as processing steel.
