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热词
    • 9. 发明授权
    • Injection screw
    • 注射螺丝
    • US5518394A
    • 1996-05-21
    • US311871
    • 1994-09-26
    • Fumio ShiozawaKiyoto TakizawaToshimi Kato
    • Fumio ShiozawaKiyoto TakizawaToshimi Kato
    • B29C45/52B29C45/60B29C45/23
    • B29C45/52
    • A penetration hole of plasticized resin is pierced in a screw head, so that the resin may be accumulated in uniform temperature distribution without sacrificing the function of the injection screw. More specifically, a penetration hole 15 of plasticized resin is pierced inside a screw head 13 at the front end of a screw 12 from the front middle to the rear periphery so as to communicate between the screw peripheral parts and the screw head front space. A ring valve 17 for opening and closing a rear opening 15a of the penetration hole 15, and closing the gap around the screw head is fitted to the rear periphery of the screw head 13 so as to be free to move back and forth.
    • 塑化树脂的穿透孔在螺钉头中被刺穿,使得树脂可以在均匀的温度分布下积聚而不牺牲注射螺杆的功能。 更具体地说,增塑树脂的穿透孔15在螺杆头12的前端从前中间到后周边的螺钉头部13内被刺穿,从而在螺钉周边部分和螺钉头前部空间之间连通。 用于打开和关闭穿透孔15的后开口15a并且关闭螺钉头周围的间隙的环形阀17装配到螺钉头13的后周边,以便自由地前后移动。