China's carbide production accounts for about 40% of the world, but sales of nearly 20%

China's carbide production accounts for about 40% of the world, but sales of nearly 20%, high-performance high-end products less development of such products is the top priority of carbide development. More likely:
1, cermet tool carbide
Metal ceramic tool components generally contain 20% of the WC, tool materials are Al2O3, Si3N4, Sialon and so on. Cermets can be made into indexable inserts or the overall tool (reamers and cutters) are mainly used for applications where the finishing surface is required. Ceramic cutting tools in the processing of hardened steel, Incol718 and other difficult to process materials, the coated carbide Tool with a higher processing efficiency.
2, sub-fine carbide
Submicron carbide accounts for nearly 25% of the world's cemented carbide market and continues to increase. As the computer, mobile phones and other products to the miniaturization of development, at the same time due to update the better PVD coating technology support. PVD coated blades are usually in fine cutting and are therefore consistent with the trend of industrial near net forming.
3, gradient cemented carbide
Gradient Carbide (which does not contain off-beta-based cemented carbide) is a hot topic in recent years and can be divided into C gradient, Co gradient and grain size gradient, or both. Can be applied to cutting tools, mining tools and wear parts. In addition, the gradient cemented carbide may also be used as the matrix of the super-hard material composite sheet to improve the bonding strength between the cemented carbide and the diamond / boron nitride interface.
4, cutting tool carbide
In addition, the cutting tool is the largest value of carbide products in a piece, the domestic coating can be transferred to 70% of the blade market to rely on imports, this part of the carbide material should focus on the development.
5, other
But also includes ultra-coarse crystalline cemented carbide, can be used as a mining alloy for fracture toughness is the main reason for the failure of the occasion; mesh (biphase) carbide alloy alloy ball teeth; unbonded phase carbide for optical Lens molds, water jet nozzles, etc .; rare earth cemented carbide, such as in the Co bonding phase to add Re and Cr elements, improve the carbide die die processing performance.