Process and apparatus for the manufacture of sintered...

Details Process and apparatus for the manufacture of sintered... Process and apparatus for the manufacture of sintered...

B - Operations, Transporting

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B24D 99/00 (2010.01) B22F 3/03 (2006.01) B22F 3/14 (2006.01) B22F 5/00 (2006.01) B23P 15/32 (2006.01)

Patent

CA 1130083

A B S T R A C T A press for cold-forming granular tungsten carbide cutting tool edge blanks for sintering, it has helical edges on jaws which open and close around a centre pin and are of a depth which allows for shrinkage during sintering, top, bottom and side members seal the forming cavity; a graphite sinter fixture has similarly-shaped forming and sealing components to the press but relies only on gravit- ational surface reaction to close components against a pressed blank to prevent shrinkage distortion during sintering.

337977

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