Method of making plate-shaped material

Details Method of making plate-shaped material Method of making plate-shaped material

B - Operations, Transporting

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B22F 3/14 (2006.01) B22F 3/12 (2006.01) B22F 3/20 (2006.01) B22F 5/00 (2006.01) H01F 1/147 (2006.01) H01F 1/22 (2006.01)

Patent

CA 2033489

Disclosed is a method of making a disc-shaped or plate- shaped sintered body from powdered material of poor ductility, such as Sendust alloy. The powdered material is filled in a dish- like metallic vessel having a thick bottom wall and a low side wall. A plurality of such filled vessels are piled up and put in a cylindrical capsule made of hot-workable metal. The capsule is charged in a hot press and is then heated and compressed. The resultant compressed product was taken out and cooled and the vessels and the capsule are removed, thereby obtaining the desired plate-shaped sintered bodies. According to the method, the sintered body having a uniform thickness and substantially no pores can be obtained.

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