Process of producing a sintered compact

Details Process of producing a sintered compact Process of producing a sintered compact

B - Operations, Transporting

22

F

18/1119, 25/133,

B22F 3/16 (2006.01) B22F 3/12 (2006.01) C04B 35/111 (2006.01) C04B 35/645 (2006.01)

Patent

CA 1095212

ABSTRACT OF THE DISCLOSURE A process of producing a sintered compact comprises filling a cup with a powdered material to be sintered, putting on an opening of the cup a covering member consisting of a lid and solder so as to permit ventilation between the interior and exterior of the cup to form a cup assembly, applying heat as well as vacuum to the cup assembly to degas the powdered material, melting the solder by the continuation of heating to air-tightly seal the cup with the lid to obtain a closed cup compressible under high pressure at high temperature while maintaining the air- tight seal, and hot-pressing the closed cup to obtain a sintered compact. The covering member may include a porous lid closing the cup and a solder put on the porous lid. - 1 -

270596

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