Non-Corrosive Auxiliary Agents For Soldering Aluminium
    3.
    发明申请
    Non-Corrosive Auxiliary Agents For Soldering Aluminium 审中-公开
    用于焊接铝的非腐蚀性助剂

    公开(公告)号:US20070277908A1

    公开(公告)日:2007-12-06

    申请号:US10593500

    申请日:2005-03-11

    CPC分类号: C22B21/062

    摘要: The invention relates to noncorrosive auxiliaries for soldering aluminium and for upgrading aluminium alloys based on alkali metal fluoroaluminates, their preparation and their use. According to the invention, the noncorrosive auxiliaries contain metallates. To form the metallates, metal compounds of the elements of main groups 2 to 5 of the PTE or of the transition elements in the form of their salts or oxides are used as reactants. In particular, their halides, nitrates, carbonates, sulphates, phosphates, borates, hexafluorosilicates or oxides, for example, are used. According to the invention, the metal compounds are introduced into the reaction mixture of hydrofluoric acid and/or hydrated alumina and/or alkali metal compound, with the point in time when the metal compound is added being able to be varied as a function of the desired degree of functionalization of the surface.

    摘要翻译: 本发明涉及用于焊接铝的非腐蚀性助剂和用于升级基于碱金属氟铝酸盐的铝合金及其制备及其用途。 根据本发明,非腐蚀性助剂含有金属盐。 为了形成金属化物,使用PTE的主要基团2至5元素或其盐或氧化物形式的过渡元素的金属化合物作为反应物。 特别地,使用其卤化物,硝酸盐,碳酸盐,硫酸盐,磷酸盐,硼酸盐,六氟硅酸盐或氧化物。 根据本发明,将金属化合物引入氢氟酸和/或水合氧化铝和/或碱金属化合物的反应混合物中,其时添加金属化合物的时间可以随着 所需的表面官能度。