-
公开(公告)号：US4431449A
公开(公告)日：1984-02-14
申请号：US499412
申请日：1983-06-01
CPC分类号： B22F1/0048 , B22F3/26 , A61F2002/30968 , B22F2998/00 , B22F2998/10 , Y10T428/1216
摘要： A molded, non-refractory metal article is made by molding in a flexible mold a plastic mixture of non-refractory, spherical metal powders and a heat-fugitive binder comprising thermoplastic material to form a green article of predetermined shape and dimensions, heating the green article to remove said binder and consolidate the non-refractory spherical powders in the form of a porous, monolithic skeleton of necked particles of non-refractory metal, infiltrating the skeleton with a molten metal having a melting point that is at least 25.degree. C. less than the melting point of the lowest melting of said spherical, non-refractory metal particles, and cooling the infiltrated skeleton thereby forming a homogeneous, void-free, non-refractory metal article of two intermeshed metal matrices.
摘要翻译： 模制的非难熔金属制品通过在柔性模具中模塑非难熔性球形金属粉末的塑料混合物和包含热塑性材料的散热性粘合剂来形成预定形状和尺寸的绿色制品，加热绿色 制品，以去除所述粘合剂并将非难熔金属的颈缩颗粒的多孔整体骨架形式的非耐火球形粉末固化，用熔点至少为25℃的熔融金属渗透骨架。 小于所述球形，非难熔金属颗粒的最低熔点的熔点，并且冷却渗透的骨架，从而形成两个相互啮合的金属基体的均匀，无空隙的非难熔金属制品。
-
公开(公告)号：US4455354A
公开(公告)日：1984-06-19
申请号：US207196
申请日：1980-11-14
CPC分类号： B22F3/26 , C22C1/051 , B22F2998/00 , B22F2998/10 , Y10T428/1216 , Y10T428/12167
摘要： The shrinkage normally encountered when molding a mixture of spherical cobalt-containing particles and thermoplastic binder, heating the resulting molded article to degrade the binder and form a porous preform, and infiltrating the same is counteracted by adding finely divided elemental iron or elemental nickel to the spherical cobalt-containing particles. In addition to improving dimensional control, the elemental powder addition increases impact strength while maintaining hardness.
摘要翻译： 在模制球形含钴颗粒和热塑性粘合剂的混合物时通常遇到的收缩，加热所得模制品以降解粘合剂并形成多孔预型体，并且通过将细分的铁或元素镍加入到 球形含钴颗粒。 除了改善尺寸控制之外，元素粉末添加增加冲击强度同时保持硬度。
-
搜索结果
2 条记录 (耗时 0.031 秒)
