Explanation

sintering carbide is made of carbonization as the main component and cobalt as the bonding phase. It is a typical combination of metal and ceramics (tungsten carbide). High melting point carbonization sintering carbonization into a whole by virtue of the wettability of uniformly coated liquid cobalt to carbonization. The alloy is sintered in liquid phase at 1400 ° C. Its bending strength can reach 1500-2800MPa, and it retains the high temperature resistance and high temperature hardness of carbonization. Its hardness is also very high at room temperature. The particle size of carbonization, carbon content, mixing uniformity of cobalt powder and sintering quality all affect the properties of tungsten carbide. The temperature of sintering should be adjusted according to the cobalt content. The vacuum sintering is better than the hydrogen sintering, and it is one of the sintering materials with the highest density. After sintering, it can be processed in the hot isostatic press without additional can. Its density can reach 99.999%. Precision instruments, roll, large plungers, and diamond production anvil can all be treated with hot isostatic pressing to obtain high-quality products. Mainly used for manufacturing various cutting tools, molds, mining tools, and wear-resistant parts. Domestic brands are named after their diamond content, such as YG6, which contains 6% diamond and 94% WC. hardness decreases and toughness increases with increasing cobalt content. In addition to tungsten carbide base, there are carbonization base, steel bond, etc. carbonization base is often called cermet. Strictly speaking, it is a typical cermet.

Classification