Tungsten Carbide Cold Heading Dies

Tungsten Carbide Cold Heading Dies

Tungsten carbide production The APT (ammonium para-tungstate) is calcined into tungsten oxide under high temperatures. Subsequently, the oxide is reduced to tungsten metal in a hydrogen atmosphere. The metal powder is then mixed with carbon and carburized under an inert atmosphere at high...

Product Details

Tungsten carbide production

The APT (ammonium para-tungstate) is calcined into tungsten oxide under high temperatures. Subsequently, the oxide is reduced to tungsten metal in a hydrogen atmosphere. The metal powder is then mixed with carbon and carburized under

an inert atmosphere at high temperatures. The production parameters are decisive for the WC grain size in the sintered carbide.


Powder preparation

The tungsten carbide is intensely mixed with the binder metal

cobalt, nickel or iron, various grain growth inhibitors, and materials,

which promote compaction, by wet grinding so that a

homogeneous suspension is created. Afterward, the suspension

is dried in a spray tower to produce a granulate with good

flow characteristics. This granulate represents the basis for all

forming processes.


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