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    • 27. 发明授权
    • Degating method
    • 脱钙方法
    • US4952354A
    • 1990-08-28
    • US348820
    • 1989-05-08
    • Hidetoshi YokoiMikiya NiwaYasuo NomuraTakeshi Takahasi
    • Hidetoshi YokoiMikiya NiwaYasuo NomuraTakeshi Takahasi
    • B29C45/27B29C45/38
    • B29C45/38B29C45/2703
    • A method for degating an injection molded article comprising the steps of filling a mold cavity with a molten resin and cooling the mold to effect gate seal. A gate cut shaft member is oscillated after gate seal is completed to soften the hardened resin in the gate. The gate cut shaft member is then displaced with respect to the mold cavity when the resin is softened to effect degating. A second method comprises the steps of cutting the gate in the molded article by sliding the gate cut shaft member during the dwell process with respect to the mold cavity after filling the mold with molten resin and before gate seal is effected. While said gate cut shaft member is subject to minute oscillation or a slow reciprocating motion, the shaft surface is abutted against the degated surface to obtain a good cut surface on the molded article.
    • 一种注射成型制品的脱模方法,包括以下步骤:用熔融树脂填充模具腔并冷却模具以实现浇口密封。 闸门密封完成后,门切割轴构件振荡,软化浇口中的硬化树脂。 然后,当树脂软化以进行脱盐时,门切割轴构件相对于模腔移位。 第二种方法包括以下步骤:通过在用熔融树脂填充模具之后和在浇口密封之前相对于模腔在停留过程期间滑动浇口切割轴构件来切割模制品的步骤。 当所述门切割轴构件经受微小振动或慢速往复运动时,轴表面抵靠经脱模的表面以在模制品上获得良好的切割表面。