Screw-type injection-molding machine
    1.
    发明授权
    Screw-type injection-molding machine 失效
    螺杆式注塑机

    公开(公告)号:US3773451A

    公开(公告)日:1973-11-20

    申请号:US3773451D

    申请日:1971-06-28

    摘要: An injection-molding machine with a rotatable and axially displaceable feed screw, serving to plasticize the moldable material and thereafter to inject it into a mold, is advanced and retracted repeatedly during a single molding operation to inject the plasticized material in several stages into the mold which is maintained at a relatively low temperature until the mold is filled. The termination of injection and the switchover to curing temperature occurs in response to a slight expansion of the mold upon complete filling.

    摘要翻译: 具有可旋转和轴向移位的进给螺杆的注射成型机,用于塑化可模制材料并随后将其注入模具中,在单次模制操作期间重复地进退并缩回以将塑化材料以几个阶段注入模具 其保持在相对较低的温度,直到模具被填充。 注射终止和切换到固化温度是由于模具在完全填充时的轻微膨胀而发生的。