Method of producing elements from powders

Details Method of producing elements from powders Method of producing elements from powders

B - Operations, Transporting

22

F

B22F 3/00 (2006.01)

Patent

CA 2110483

Complex-shaped parts can be produced from powders, for example metal-matrix composites, by injection molding using a mixture of the powders with a suitable binder. The binder must be removed from the powder mixture before the final thermal treatment of the so-called green part. The present invention proposes to remove the binder by surrounding a cast part with a layer of a particulate material and to subject the cast part to isostatic pressure through the surrounding layer which can thus act as an absorbent. The surrounding layer is removed after the isostatic pressing and the part can be subjected to sintering. The method is suitable for example for aluminum-ceramic powder mixtures.

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