Dual-phase hard material comprising tungsten carbide,...

Details Dual-phase hard material comprising tungsten carbide,... Dual-phase hard material comprising tungsten carbide,...

2004-11-16

2009-06-02

Le, H. (Holly) T (Department: 1794)

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

C427S215000, C427S227000

Reexamination Certificate

active

07541090

ABSTRACT:
The invention relates to tungsten carbide powder consisting of powder particles, which have a core comprised of tungsten cast carbide and a covering comprised of tungsten monocarbide, to the production thereof by heating a tungsten cast carbide powder in the presence of a carbon source to a temperature ranging from 1300 to 2000° C., and to the use thereof for coating surfaces of parts subjected to wear and for producing drill bits.

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