PRE-ALLOYED COPPER CONTAINING POWDER AND ITS USE IN THE MANUFACTURE OF DIAMOND TOOLS

摘要

Use of a pre-alloyed powder as a binder in the manufacture of diamond tools by hot sintering substantially as described in the specification, characterized in that the powder has an average particle size of less than 10 em as measured with the Fisher SSS and a loss of mass by reduction in hydrogen of less than 2% as measured according to the standard ISO 4491-2: 1989 and in that it contains, in % by weight, up to 40 % of cobalt, up to 50% of nickel, from 5 to 80% of iron and from 5 to 80% of copper, the other components in the powder consisting of unavoidable impurities.