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    Method for high-speed production of metal-clad articles
    7.
    发明授权
    Method for high-speed production of metal-clad articles 失效
    金属制品高速生产方法

    公开(公告)号：US4597836A

    公开(公告)日：1986-07-01

    申请号：US759526

    申请日：1985-07-26

    申请人： Glenn R. Schaer ,  Joseph R. Preston

    发明人： Glenn R. Schaer ,  Joseph R. Preston

    IPC分类号： C25D1/00 ,  C25D1/20 ,  H05K3/00 ,  H05K3/02 ,  C25D1/02 ,  C25D1/10

    CPC分类号： C25D1/00 ,  C25D1/20 ,  H05K3/0014 ,  H05K3/025 ,  Y10T428/12569 ,  Y10T428/12903

    摘要： A die used for plastic injection molding is masked on its inner surface with a plating resist to leave only a selected area exposed. A conforming anode is fit into the die leaving a small clearance between the die cavity surface and the anode. A metal layer is electroplated onto the exposed mold surfaces of the die in less than a minute by using a high current density and a turbulent flow of electroplating solution. The die is then assembled with a second die to form a mold. A plastic molding composition is injected into the mold cavity and comes in contact with and adheres to the metal electroplate more tightly than the metal electroplate adheres to the surface of the mold member. As the mold is separated, the metal electroplate remains bonded to the plastic molding composition to form a metal-clad plastic article. Adhesion between the metal electroplate and the plastic can be improved by forming nodular growths on the metal electroplate. This is done by varying the current density and/or the electroplating solution flow-rate near the end of the electroplating process. The electroplating and molding steps may be sequentially combined into an automated process for the continuous production of metal-clad articles.

    摘要翻译： 用于塑料注射成型的模具在其内表面上用电镀抗蚀剂掩蔽，仅留下被选择的区域暴露。 将一个符合标准的阳极装配到模具中，在模腔表面和阳极之间留下一个小间隙。 通过使用高电流密度和电镀溶液的湍流，在不到一分钟的时间内将金属层电镀在裸露的模具表面上。 然后将模具与第二模具组装以形成模具。 将塑料模塑组合物注入模腔中，与金属电镀板粘附在模具表面上更紧密地接触并粘附到金属电镀板上。 当模具分离时，金属电镀板保持结合到塑料模制组合物以形成金属包覆的塑料制品。 可以通过在金属电镀板上形成结节生长来改善金属电镀板和塑料之间的粘合性。 这是通过改变在电镀过程结束附近的电流密度和/或电镀溶液流速来完成的。 电镀和模制步骤可以顺序地组合成用于连续生产金属包覆制品的自动化工艺。