公开(公告)号：US4379684A

公开(公告)日：1983-04-12

申请号：US272679

申请日：1981-06-11

申请人： Takeshi Katagiri ,  Takakazu Tsuchifuji

发明人： Takeshi Katagiri ,  Takakazu Tsuchifuji

IPC分类号： B22F3/03 ,  B30B11/02

CPC分类号： B22F3/03 ,  B30B11/02

摘要： Press for powder metallurgy and method of simultaneous compression of powder in a die disclosed which includes descent speed differentially control apparatuses for simultaneous compression powder in the die from both the upper and lower direction by an upper punch and a lower punch. The descent speed of an upper ram is transferred to the upper punch at that speed, and the speed is changed to lower speed through the control device than the upper punch speed and the controlled lower speed is transferred to a die holder which is simultaneously descended with the controlled lower speed together with the high speed upper punch.

摘要翻译： 用于粉末冶金的压制方法和公开的粉末同时压缩的方法，其包括通过上冲头和下冲头从上下方向在模具中同时压缩粉末的下降速度差分控制装置。 上冲头的下降速度以该速度转移到上冲头，并且通过控制装置将速度改变为比上冲头速度更低的速度，并且将受控较低速度转移到同时下降的模具座中 控制较低的速度与高速上冲头一起。