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    • 2. 发明授权
    • Self-brazing aluminum laminated structure
    • 自钎焊铝层压结构
    • US5316863A
    • 1994-05-31
    • US885125
    • 1992-05-18
    • John J. JohnsonRoland S. Timsit
    • John J. JohnsonRoland S. Timsit
    • B23K35/02B23K35/28B22F7/04
    • B23K35/0238B23K35/286Y10T428/12028Y10T428/12056Y10T428/12069Y10T428/12097
    • A novel self-brazing aluminum laminated structure is described, as well as a method of making the laminated structure and a brazed product produced therefrom. The laminated structure consists of a thin layer of a powder mixture consisting of eutectic-forming metal powder and a flux powder sandwiched between an aluminum alloy sheet and an aluminum foil. The laminate is fabricated by roll bonding to provide adequate adhesion of the foil to the underlying sheet through and around the powder layer. This can be done by arranging the powder layer into clusters of powder with spaces therebetween so that roll bonding between the foil and the aluminum alloy substrate takes place by way of direct metal contact between the clusters. These clusters may be created by the method of applying the powder, e.g. silk screen, or by providing depressions in the surface of the substrate by a process of roughening or of embossing within which clusters of the powder are located.
    • 描述了一种新型的自钎焊铝层压结构,以及制造层叠结构的方法和由其制造的钎焊制品。 层压结构由由共晶形成金属粉末和夹在铝合金板和铝箔之间的焊剂粉末组成的粉末混合物的薄层组成。 通过辊粘合制造层压板,以通过粉末层和周围的箔提供足够的箔粘合到下面的片材上。 这可以通过将粉末层布置成具有间隙的粉末簇来实现,使得箔和铝合金基底之间的辊粘合通过簇之间的直接金属接触进行。 这些簇可以通过施加粉末的方法产生,例如, 或通过粗糙化或压花的方法在基材的表面中提供凹陷,其中粉末簇位于其中。
    • 5. 发明授权
    • Method of brazing metal surfaces
    • 钎焊金属表面的方法
    • US5190596A
    • 1993-03-02
    • US823291
    • 1992-01-21
    • Roland S. Timsit
    • Roland S. Timsit
    • B23K1/19B23K35/14B23K35/22B23K35/28B23K35/363
    • B23K35/286
    • A novel method is described for joining aluminum to metal surfaces by brazing. The method comprises (a) applying as a coating to at least one of the metal surfaces to be joined a mixture of a metal (e.g. Si, Cu or Ge) and a brazing flux, the metal of the mixture being adapted to form a brazable eutectic with one or both of the surface metals, (b) heating the surfaces and the coating in juxtaposed relation to a temperature above the brazing alloy melting point to thereby dissolve oxide film on the surfaces to be joined, cause the metal of the coating to dissolve into the oxide-free aluminum surface and form therewith a brazing alloy layer and form a brazed assembly and (c) cooling the brazed assembly to form a solidified joint between the surfaces. This has the advantage of providing for the joining of metal surfaces, such as aluminum, to aluminium, cooper, brass or steel surfaces, by brazing without the prior formation of a brazing alloy cladding on the surfaces to be brazed.
    • 描述了通过钎焊将铝连接到金属表面的新方法。 该方法包括(a)将至少一种金属(例如Si,Cu或Ge)与钎焊助剂的混合物接合在一起的金属表面涂覆,该混合物的金属适于形成可钎焊的 与一种或两种表面金属共晶,(b)相对于钎焊合金熔点以上的温度并列地加热表面和涂层,从而将氧化膜溶解在要接合的表面上,使涂层的金属 溶解到无氧化物的铝表面并与其形成钎焊合金层并形成钎焊组件,和(c)冷却钎焊组件以在表面之间形成凝固接头。 这具有通过钎焊将金属表面(例如铝)连接到铝,铜,黄铜或钢表面的优点,而不需要在待钎焊的表面上先前形成钎焊合金包层。
    • 6. 发明授权
    • Method of brazing aluminum
    • 钎焊铝的方法
    • US5100048A
    • 1992-03-31
    • US646151
    • 1991-01-25
    • Roland S. Timsit
    • Roland S. Timsit
    • B23K1/19B23K35/14B23K35/22B23K35/28B23K35/363
    • B23K35/286
    • A novel method is described for joining aluminum surfaces by brazing. The method comprises (a) applying as a coating to at least one of the aluminum surfaces to be joined a mixture of a metal and a brazing flux, the metal of the mixture being adapted to form a brazable eutectic with the aluminum, (b) heating the surfaces and the coating in juxtaposed relation to a temperature above the brazing alloy melting point to thereby dissolve oxide film on the surface to be joined, cause the metal of the coating to dissolve into the oxide-free aluminum surface and form therewith a brazing alloy layer and form a brazed assembly and (c) cooling the brazed assembly to form a solidified joint between the surfaces. This has the advantage of providing for the joining of aluminum surfaces by brazing without the prior formation of a brazing alloy cladding on the surfaces to be brazed.
    • 描述了通过钎焊连接铝表面的新颖方法。 该方法包括:(a)将至少一种待接合的金属和钎料的混合物的铝表面作为涂层施加,所述混合物的金属适于与铝形成可钎焊的共晶,(b) 将表面和涂层加热到高于钎焊合金熔点的温度下,使氧化膜溶解在待接合的表面上,使涂层的金属溶解到无氧化物的铝表面并形成钎焊 合金层并形成钎焊组件,(c)冷却钎焊组件以在表面之间形成凝固接头。 这具有通过钎焊提供铝表面的接合,而不需要在待钎焊的表面上先前形成钎焊合金包层。