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1. 发明授权

US06319437B1 Powder injection molding and infiltration process 失效
标题翻译：粉末注射成型和渗透过程
公开(公告)号：US06319437B1
公开(公告)日：2001-11-20
申请号：US09250148
申请日：1999-02-16
申请人： Norbert B. Elsner , Stanley Zalkind , Ian Sidney R. Clark , Fred Leavitt
发明人： Norbert B. Elsner , Stanley Zalkind , Ian Sidney R. Clark , Fred Leavitt
IPC分类号： B22F326
CPC分类号： C22C1/1036 , A63B53/047 , A63B53/0487 , A63B2053/0416 , A63B2209/00 , A63B2209/02 , B22F3/26 , B22F2998/10 , C22C2001/1021 , C22C2204/00 , B22F3/1121 , B22F7/062
摘要： A powder injection molding and infiltration process. A powder of a skeleton material having a relatively high melting point is mixed with a composite binder to form a mold mixture. The composite binder is comprised of at least two binder materials. The mold mixture is molded into a desired shape in a mold device to produce a molded part. The composite binder is then removed to produce voids in the molded part and the voids are filled by infiltrating an infiltrant comprised of an infiltrant material having a relatively low melting point to produce a composite molded part. In a preferred embodiment the skeleton material is TiB2 and the infiltrant material is aluminum and the composite binder is comprised of a plastic and a wax. In this embodiment the wax portion of the composite binder is removed using a solvent and the plastic is removed during the infiltration step. The resulting composite part has a TiB2 skeleton with voids substantially filled with aluminum. This process is especially useful for making light and strong parts with complex shapes such as golf club heads, tools, cutting implements, thermal management products, rocket motor components and bicycle parts. In another preferred embodiment, a golf club head is comprised of three parts: an non-sintered TiB2 part for the body of the head, a sintered TiB2 part for the striking surface of the head, and a heavy tungsten part to provide weight for the head. In this embodiment, the aluminum infiltrant substantially fills the voids in all three parts to create a golf club head with optimum characteristics.
摘要翻译：粉末注射成型和渗透过程。将具有较高熔点的骨架材料的粉末与复合粘合剂混合以形成模具混合物。复合粘合剂由至少两种粘合剂材料组成。将模具混合物在模具装置中模制成所需形状以制造模制件。然后去除复合粘合剂以在模制部件中产生空隙，并且通过浸渍由具有相对低熔点的渗透材料组成的渗透剂来填充空隙以产生复合模制部件。在优选的实施方案中，骨架材料是TiB 2，浸润材料是铝，复合粘合剂由塑料和蜡组成。在该实施方案中，使用溶剂除去复合粘合剂的蜡部分，并且在渗透步骤期间除去塑料。所得的复合部件具有基本上填充有铝的空隙的TiB2骨架。该方法对于制造具有复杂形状的轻型和强力部件特别有用，例如高尔夫球杆头，工具，切割工具，热管理产品，火箭发动机部件和自行车部件。在另一个优选实施例中，高尔夫球杆头由三部分组成：用于头部主体的非烧结TiB2部件，用于头部打击表面的烧结TiB2部件，以及重钨部件，用于为头。在该实施例中，铝浸渍剂基本上填满所有三个部分的空隙，以形成具有最佳特性的高尔夫球杆头。

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