Method for sealing porous metals
    1.
    发明授权
    Method for sealing porous metals 失效
    密封多孔金属的方法

    公开(公告)号:US4591480A

    公开(公告)日:1986-05-27

    申请号:US702571

    申请日:1985-02-19

    摘要: A method for sealing porous metals, which comprises applying powder of a eutectic alloy containing an element having a good diffusibility in a porous metal or powder of a mixture of metals capable of forming the eutectic alloy, to the surface of a porous metal member and heating the surface applied with the powder at a temperature higher than the eutectic temperature of the eutectic alloy to thereby cause the molten eutectic alloy to intrude into pores from the surface of the porous metal member, whereby the melting point of the molten alloy in the pores is promptly increased by diffusion of the element in the porous metal member to solidify the molten metal in the pores, sealing only pores present in the vicinity of the surface of the porous metal member.

    摘要翻译: 一种多孔金属的密封方法,其特征在于,在多孔金属的多孔金属或能够形成共晶合金的金属的混合物的粉末中含有具有良好扩散性的元素的共晶合金粉末, 所述表面在高于共晶合金的共晶温度的温度下施加粉末,从而使熔融共晶合金从多孔金属构件的表面侵入到孔中,由此熔融合金在孔中的熔点为 通过元件在多孔金属构件中的扩散而迅速增加,以固化孔中的熔融金属,仅密封存在于多孔金属构件表面附近的孔。

    Process for forming a high alloy layer on a casting
    2.
    发明授权
    Process for forming a high alloy layer on a casting 失效
    在铸件上形成高合金层的工艺

    公开(公告)号:US4646811A

    公开(公告)日:1987-03-03

    申请号:US727773

    申请日:1985-04-26

    CPC分类号: B22D19/08

    摘要: A process of forming a high alloy layer on a surface of an aluminum alloy casting. The process comprises steps of providing a mixture of fine powders having an average powder size finer than 10 microns, preferably finer than 1.0 micron, of an alloying metal or an alloying alloy and an acrylic binder, shaping the mixture into a sheet, heat treating the sheet at 150.degree. to 380.degree. C. for more than 5 minutes, placing the heat treated sheet on a surface of a casting mould or a chilling block, and casting molten aluminum alloy.

    摘要翻译: 在铝合金铸件的表面上形成高合金层的工艺。 该方法包括以下步骤:提供平均粉末尺寸小于10微米,优选小于1.0微米的合金金属或合金合金和丙烯酸粘合剂的细粉末的混合物,将混合物成形为片材,热处理 在150〜380℃下放置5分钟以上,将热处理片放置在铸模或冷却块的表面上,铸造熔融铝合金。

    Method of bonding porous metallic members and product made by the method
    5.
    发明授权
    Method of bonding porous metallic members and product made by the method 失效
    通过该方法制造多孔金属构件和产品的方法

    公开(公告)号:US4690320A

    公开(公告)日:1987-09-01

    申请号:US9094

    申请日:1987-01-29

    摘要: A method of bonding two metallic members at least one of which is of a porous structure. The method comprises steps of using, as the brazing material, a metallic material containing an eutectic alloy which contains an element having a superior diffusion property to the porous metallic member or, alternatively, an alloy which can form the eutectic alloy, placing the brazing material between the metallic members, heating the brazing material and the metallic members to a temperature above the melting point of the brazing material, and cooling the metallic members and the brazing material.

    摘要翻译: 一种键合两个金属构件的方法,其中至少一个是多孔结构。 该方法包括以下步骤:使用含有共晶合金的金属材料作为钎焊材料,所述共晶合金含有对所述多孔金属部件具有优异扩散性的元素,或者使用可形成所述共晶合金的合金,将所述钎焊材料 在金属构件之间,将钎焊材料和金属构件加热到高于钎料的熔点的温度,并且冷却金属构件和钎焊材料。

    Powder sheet for sintering
    8.
    发明授权
    Powder sheet for sintering 失效
    用于烧结的粉末片

    公开(公告)号:US4596746A

    公开(公告)日:1986-06-24

    申请号:US724315

    申请日:1985-04-17

    摘要: A metal powder sheet for use for forming a sintered layer on a metal substrate. The sheet includes powders of a metal which provides a required physical property such as wear-resistance and ultra-fine powders of a metal having a powder size finer than 1 micron. These powders are kneaded with an addition of an acryl resin as a binder. The ultra-fine powders make it possible to carry out the sintering process at a lower temperature.

    摘要翻译: 一种用于在金属基板上形成烧结层的金属粉末片。 该片材包括提供​​所需物理性质如耐磨性的金属粉末和具有小于1微米的粉末尺寸的金属的超细粉末。 通过添加丙烯酸树脂作为粘合剂来捏合这些粉末。 超细粉末可以在较低温度下进行烧结。