Tungsten carbide is a composite of refractory metal compounds and bonded metal, of which the most widely used material is refractory metal carbides. Tungsten carbide is the main component, followed by titanium carbide, niobium carbide and its solid solution. Common characteristics of these carbides are high melting point, high hardness, good chemical stability, good thermal stability and small dissolution with the interaction of bonded metal at normal temperature.

 

With the development of production, the variety of die is increasing day by day, while the demand is increasing exponentially. The requirement for accuracy, roughness and life of die is higher and higher. With the characteristics of high hardness, high temperature resistance and long life, tungsten carbide dies have been developing rapidly in recent years, and tungsten carbide dies have been widely used in drawing dies.

 

 

The history of tungsten carbide die industry has over 60 years. In the past 60 years, a lot of fruitful studies have been carried out on the basic theory of tungsten carbide, production technology, technology and equipment, and the technology of use, which make the production technology mature, the technology is improving day by day, and the application technology is increasing day by day. The development of tungsten carbide industry in the world can be divided into 4 stages in general.

 

First stage (1927-1936) is the forming stage of the tungsten carbide industry in the world. Since the German industrial production in 1926, the United States, Austria, Britain, the former Soviet Union, Japan and other countries have successfully developed and produced tungsten carbide. By the beginning of 30s, the output of cemented carbide in the world reached 50t.

 

In 1932, the tungsten carbide with tantalum was developed in the United States, which means the second phase (1937-1949) of the tungsten carbide, making the steel processing has been fully adapted. At this stage, the second World War stimulated the development of the tungsten carbide die industry, which increased the output from 100t before the war to more than 3000t and opened up a new field of application (such as warheads).

 

Read more: brief introduction of the tungsten carbide drawing die (2)