PREALEED POWDER CONTAINING COPPER, AND ITS USE IN THE MANUFACTURE OF DIAMOND TOOLS.

摘要

The present invention relates to the use of a pre-alloyed powder as a binder in the manufacture of hot sintered diamond tools. This powder is characterized by an average particle size of less than 10 µm, measured with the Fischer sub-sieve and a hydrogen loss mass reduction of less than 2% measured according to ISO 4491-2: 1989 In addition, this powder contains, in percentage by weight, up to 40% cobalt, 50% nickel, 5 to 80% iron, and 5 to 80% copper. The other components of the powder are inevitable impurities.