利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

11 条记录 (耗时 0.011 秒)

    Apparatus for injection molding with thermosetting resins
    1.
    发明授权
    Apparatus for injection molding with thermosetting resins 失效
    注射用热固性树脂注塑的装置

    公开(公告)号：US3787159A

    公开(公告)日：1974-01-22

    申请号：US3787159D

    申请日：1971-05-03

    申请人： ECKERT & ZIEGLER GMBH

    发明人： BIELFELDT F

    IPC分类号： B29C45/56 ,  B29F1/06

    CPC分类号： B29C45/561 ,  B29C2045/5625

    摘要： A thermosetting resin is injected into a partially open separable mold having a mold cavity. This mold is then partially closed to precompress the resin and is heated to soften it. After a predetermined amount of time, the mold is fully closed to compress the mass of resin and to force it into every portion of the cavity. A telescoping mold and a valve between the mold and the injection head are used to prevent the mass from escaping during compression.

    摘要翻译： 将热固性树脂注入具有模腔的部分开放的可分离模具中。 然后将该模具部分封闭以预压缩树脂并加热以使其软化。 在预定量的时间之后，模具完全关闭以压缩树脂块并将其推入空腔的每个部分。 在模具和注射头之间使用伸缩模具和阀门来防止质量在压缩过程中逸出。

    Screw-type injection-molding machine
    2.
    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

    申请人： ECKERT ZIEGLER GMBH

    发明人： BIELFELDT F ,  NEUREUTHER J

    IPC分类号： B29C45/50 ,  B29C45/76 ,  B29C45/80 ,  B29G3/00

    CPC分类号： B29C45/80 ,  B29C45/50 ,  B29C45/76 ,  B29C45/7613

    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。

    Injection molding machine
    3.
    发明授权
    Injection molding machine 失效

    公开(公告)号：US3602950A

    公开(公告)日：1971-09-07

    申请号：US3602950D

    申请日：1969-01-15

    申请人： ECKERT & ZIEGLER GMBH

    发明人： BIELFELDT FRIEDRICH BERND

    IPC分类号： B29C45/50 ,  B29C45/60 ,  B29F3/06 ,  B29F3/08

    CPC分类号： B29C45/50 ,  B29C45/60

    摘要： An injection molding machine for thermosetting plastic material which comprises a heatable cylinder having a constant internal diameter, and a rotary and axially movable screw which transports plastic material toward the outlet of the cylinder. The diameter of the screw thread decreases gradually toward the tip of the screw along an intermediate portion whose axial length is between one and eight times the maximum diameter of the screw. The diameter of the core in the intermediate portion of the screw also decreases gradually but the pitch of threads on such intermediate portion increases toward the tip. This reduces wear on the internal surface of the cylinder and on the external surface of the screw.