| 摘要 |
PURPOSE:To produce a small-size thin-walled product of complicated shape at a low cost by subjecting pellets, prepared by mixing a binder composed essentially of thermoplastic resin with a metal or ceramic powder, to heating and then to compacting in a die. CONSTITUTION:A sintered compact is produced by compacting a metal powder or a ceramic powder and then sintering the resultant green compact. In the method of producing this sintered compact, a binder composed essentially of thermoplastic resin is mixed with the powder and the resultant mixture is kneaded and pelletized. The resulting pellets are heated in a heating zone 2 using infrared rays and formed into flowable state, and they are then conveyed by means of a conveyor 3 and introduced via an arm 4 into a compacting die 5, where these pellets 1 are compacted into the desired shape. Subsequently, the resultant green compact is cooled and taken out from the die 5 and then degreased and sintered. |
