The word "win" means a hard alloy of cobalt and tungsten carbide.
Where did such an interesting name come from? It turns out that it has historical roots. One of the versions says that the alloy began to be called that after 1941, when the battle near Moscow took place. The alloy was used to make armor-piercing bullets of 14.5 mm caliber. They were intended for anti-tank weapons.
According to the second version, the name "will win" was invented at the military rear factories. There, this alloy was used for the production of weapons.
For the first time, a tool cast from an alloy of tungsten carbide was used in Germany in the 20s of the XX century. The development of Pobeda in the Soviet Union dates back to 1929. Initially, it was used to make cutting tools.
In the first alloy compositions, the proportions were as follows: 96 parts of tungsten carbide and 4 parts of cobalt. Today, alloys with a different ratio of components are used. Nevertheless, the name has been preserved.
Composite ceramic alloy has a very high hardness. According to the Rockwell scale, it reaches 90.
Today, to make wins, they use powder casting. It looks like this: fine-grained cobalt or nickel, which acts as a binder metal, is added to fine-grained tungsten carbide (other carbide is also used). This mass is then pressed into moulds. The resulting plates are sent to sinter.
The sintering temperature of the alloy is almost equal to its melting temperature. The result is a solid material.
Cutting and drilling tools are made from such dense plates. Will win soldered with copper.
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