VERFAHREN ZUR HERSTELLUNG EINES ZEMENTIERTEN CARBIDPULVERS BEI NIEDRIGEM DRUCK

摘要

The present invention relates to a method of making a cemented carbide with submicron WC grain size with powder metallurgical technique milling, pressing and sintering. The method consists in premixing all components except WC for >2 hours, adding the WC powder and then finally milling for about 10 hours. In this way a cemented carbide powder with acceptable low compacting pressure is obtained.