Brazed porous coating and improved method of joining metal with silver
material
    13.
    发明授权
    Brazed porous coating and improved method of joining metal with silver material 失效
    钎焊多孔涂层和金属与银材料接合的改进方法

    公开(公告)号:US4813965A

    公开(公告)日:1989-03-21

    申请号:US162072

    申请日:1988-02-29

    申请人: Peter R. Roberts

    发明人: Peter R. Roberts

    摘要: Pieces of metal are joined with silver material in a two-stage heating process. In one application, a brazed porous coating of metal particles on a metal substrate of a device is formed by interposing a silver material between the substrate and the particles, and placing the particles onto the substrate. The device is heated to a first temperature slightly below the melting point of the silver material, then briefly heated to a second temperature above 1100.degree. C. to rapidly melt the silver material to wet the particles and substrate and to generate alloying among the silver material, the particles, and the substrate. The device is allowed to cool to solidify the alloy and unite the particles and substrate to form a porous coating on the device. Also disclosed are a prosthetic device having a metal shaft for insertion into a bone canal, and a porous coating of metal particles brazed to the metal shaft by a silver material. A porous coating preparation to be applied to a metal substrate, including metal particles, silver material, and a vaporizable binder for initially securing the particles to the substrate is further disclosed.

    摘要翻译: 金属片在两级加热过程中与银料接合。 在一个应用中,通过在基板和颗粒之间插入银材料并将颗粒放置在基板上来形成装置的金属基板上的金属颗粒的钎焊多孔涂层。 该装置被加热到略低于银材料熔点的第一温度,然后短暂加热到高于1100℃的第二温度,以快速熔化银材料以润湿颗粒和基材,并在银材料之间产生合金化 ,颗粒和基材。 允许该装置冷却以固化合金并使颗粒和基底结合以在该装置上形成多孔涂层。 还公开了一种具有用于插入骨管的金属轴的假体装置和通过银材料钎焊到金属轴的金属颗粒的多孔涂层。 进一步公开了一种应用于金属基底的多孔涂层制剂,包括金属颗粒,银材料和用于最初将颗粒固定到基底的可汽化粘合剂。