METALLURGICALLY BONDING INSERTS IN A CASTING.
    1.
    发明公开
    METALLURGICALLY BONDING INSERTS IN A CASTING. 失效
    冶金复合INSERTS单件。

    公开(公告)号:EP0616560A4

    公开(公告)日:1995-03-01

    申请号:EP92923422

    申请日:1992-11-04

    IPC分类号: B22D19/00 B22D19/08 F02F1/24

    摘要: Processes for coating a ferrous or aluminum article, such as an engine cylinder liner insert (20), to provide a metallurgical bond with aluminum alloy material cast around the article. The article surface (26) to be bonded is treated to remove impurities, oxides, and foreign materials, and the article is preheated. A molten metallic bonding material, such as zinc or a zinc alloy, is provided and the treated and preheated article is immersed in the bonding material to provide a metallurgically bonded coating on the surface of the article being treated. The coated article, either shortly after coating or, alternatively, after having been cooled to ambient temperature and stored, can then be placed in a mold and molten aluminum alloy poured around it to metallurgically bond the aluminum to the coating on the article. The resulting structure provides a metallurgical bond that has improved heat transfer characteristics and improved structural integrity.