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1. 发明授权

US06547210B1 Sacrificial insert for injection molding 失效
标题翻译：用于注塑的牺牲插件
公开(公告)号：US06547210B1
公开(公告)日：2003-04-15
申请号：US09505962
申请日：2000-02-17
申请人： Jeffrey G. Marx , Bradley R. Heckendorf , Brian L. Norberg
发明人： Jeffrey G. Marx , Bradley R. Heckendorf , Brian L. Norberg
IPC分类号： B28B728
CPC分类号： B22F3/225 , B22F5/10 , B22F2005/103 , B22F2998/00 , B28B1/24 , B28B7/342 , B29C45/4457 , B29C2045/4464
摘要： Sacrificial inserts and molds for use in injection molding are disclosed. In one embodiment a sacrificial insert includes a water-insoluble insert which has a melting temperature greater than the injection molding melt temperature of the base material being molded. In another embodiment, a mold includes one or more of: a sacrificial insert configured to form interior features of the object; a sacrificial insert configured to form interior and exterior features of the object; and a combination of a sacrificial insert configured to form exterior features of the object and a tool configured to form interior features of the object. In another embodiment, a multi-shot injection molding process includes: providing a support base containing a tool; injecting a first material into the support base to form an integral tool and sacrificial insert; separating the tool from the sacrificial insert; retaining the sacrificial insert in the support base, or inserting the sacrificial insert into another support base optionally having a further sacrificial insert or tool; injecting a second material into the support base containing the sacrificial insert to form an integral sacrificial insert and molded object; and destructively disengaging the sacrificial insert from the molded object without substantially damaging the molded object. In another embodiment, a sacrificial insert is used to injection mold a metal or ceramic object.
摘要翻译：公开了用于注模的牺牲插件和模具。在一个实施方案中，牺牲插入物包括水不溶性插入物，其熔融温度大于被模塑的基底材料的注塑熔融温度。在另一个实施例中，模具包括以下中的一个或多个：构造成形成物体的内部特征的牺牲插入件; 被配置为形成所述物体的内部和外部特征的牺牲插入件; 以及构造成形成所述物体的外部特征的牺牲插入件和被配置为形成所述物体的内部特征的工具的组合。在另一个实施例中，多次注射成型工艺包括：提供包含工具的支撑基座; 将第一材料注入支撑基座以形成整体工具和牺牲插入物; 将工具与牺牲插件分离; 将牺牲插入物保持在支撑基座中，或将牺牲插入物插入另外的支撑底座中，任选地具有另外的牺牲插入件或工具; 将第二材料注入到包含牺牲插入物的支撑基底中以形成整体的牺牲插入物和模制物体; 并且将牺牲插入物与模制物体破坏性地脱离而不会基本上损坏模制物体。在另一个实施例中，牺牲插入物用于注射模制金属或陶瓷物体。

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