Metal coating process
    7.
    发明授权

    公开(公告)号:US3695919A

    公开(公告)日:1972-10-03

    申请号:US3695919D

    申请日:1970-11-20

    CPC classification number: C23C2/30 C23C2/12

    Abstract: A PROCESS FOR ALUMINIZING AN ARTICLE BY IMMERSION IN A VESSEL CONTAINING A BATH OF MOLTEN ALUMINUM. PROVIDING AT LEAST ONE FORAMINOUS REFRACTORY BRICK IMPREGNATED WITH A FLUX MATEIAL HAVING A DENSITY LESS THAN THE MOLTEN ALUMINUM BATH. INTRODUCING THE BRICK INTO THE VESSEL IN CONTACT WITH THE ALUMINUM TO INITIATE DISCHARGE OF THE FLUX FROM THE REFRACTORY BRICK INTO THE ALUMINUM. RETAINING THE BRICK IN THE VESSEL FOR A SUFFICIENTLY LONG PERIOD OF TIME TO ESTABLISH A THIN FILM OF THE FLUX ON THE SURFACE OF THE MOLTEN ALUMINUM. SUBSEQUENTLY INTRODUCING THE ARTICLE TO BE ALUMINIZED INTO THE MOLTEN ALUMINUM AND RETAINING IT THEREIN FOR A PERIOD OF TIME SUFFICIENT TO COAT THE ARTICLE WITH THE MOLTEN ALUMINUM. THEREAFTER REMOVING THE ARTICLE AT A SUFFICIENTLY LOW RATE OF SPEED TO CAUSE FLUX PICKUP TO PROVIDE A FLUX COATING ON THE COATED ARTICLE AND THEREBY MINIMIZING OXIDE FORMATION ON THE COOLED PART. THE FORAMINOUS REFRACTORY BRICK IS PREFERABLY THERMALLY STABLE AT TGHE MOLTEN ALUMINUM BATH TEMPERATURE AND THE FLUX PREFERABLY HAS A MELTING TEMPERATURE NOT LESS THAN THE TEMPERATURE OF THE MOLTEN ALUMINUM BATH.

    Melting finely divided aluminum scrap
    8.
    发明授权
    Melting finely divided aluminum scrap 失效
    熔炼精细分解的铝片

    公开(公告)号:US3649247A

    公开(公告)日:1972-03-14

    申请号:US3649247D

    申请日:1969-05-27

    CPC classification number: C22B21/0092 Y02P10/218

    Abstract: In melting finely divided aluminum and aluminum alloy metal such as scrap, melt losses can be substantially reduced if the flux is combined with the metal pieces before they are melted.

    Abstract translation: 在熔融细碎的铝和铝合金金属如废料时,如果焊剂在熔融之前与金属片组合,则熔体损失可以大大降低。

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