DUAL-PHASE HARD MATERIAL, PROCESS FOR THE PRODUCTION THEREOF AND ITS USE

摘要

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.