Carbide since the early 2020s, invented by German scientists since its widia (diamond-like) the name of the market, and the first production of tungsten tensile modulus of industrial applications, replacing the expensive diamond drawing die. China Cemented Carbide late start, but growing rapidly. At present, the carbide die basically serialization and standardization. The situation developed in recent years, China's carbide dies and design theory has more in-depth and more scientific, more extensive applications.
On the development of new carbide materials, a few years ago, the iron-nickel on behalf of drilling for hot. Developed the equivalent of YG, YG20 metallurgical materials such as Hunan Province, the carbide of the YG25 the high strength and toughness, and received good results for cold heading die, cold extrusion die. Tianjin Institute of carbide is also drilling in iron and nickel on behalf of developed quite YG (15-20), carbide die materials, standard parts of the roll forging, ball quite cold heading and YG20 effect. In recent years, new research popular fine grain, fine grain, and even nanocrystalline carbide and carbide gradient. Gradient cemented carbide and the composition gradient, the organizational structure gradient, in addition, useful liquid metal infiltration processing method to produce gradient cemented carbide, such as gradient carbide anvil.
The fine grain size and ultra-fine grain cemented carbide has also been available, such as fine crystal the YGS drawing mode in drawn <φlmm the wire, three times the general drawing mode. In addition, the cast, inlaid carbide hot work die, achieved good results in the rolling pipe and wire rolling.
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