method of producing hard alloys

摘要

A method of producing hard alloys includes moulding a billet, compression sintering in the vacuum under pressure, which does not exceed 10 MPa at the temperature of liquid-phase sintering with subsequent cooling to the room temperature. Prior to cooling the pressure is decreased to 2·10-1·102 MPa, and cooling is conducted at the pressure with the rate of 50-150 °C/min.