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    • 43. 发明授权
    • Alloy coating for cast iron parts, such as glass molds
    • 铸铁件合金涂层,如玻璃模具
    • US4471034A
    • 1984-09-11
    • US442169
    • 1982-11-16
    • Eduardo RomeroRichard J. Dumola
    • Eduardo RomeroRichard J. Dumola
    • C22C19/05B23K9/04B23K35/30C03B9/48C22C19/03C23C4/08C23C4/12B32B15/18
    • C22C19/03B23K35/3033B23K9/04C03B9/48Y10S428/937Y10T428/12937
    • A method for producing a weld-bonded nickel-base alloy coating on a cast iron part with minimum porosity at the weld interface is provided using a plasma transferred arc process in which the cast iron part is electrically coupled to the plasma-forming circuit, the flow of powder being directed into the plasma arc to the surface of the cast iron part. The method further resides in controlling the deposit of the nickel-base alloy during spraying to maintain a puddle of the alloy between the transfer arc plasma and the cast iron part substrate to protect it from overheating and burning from the transfer arc while promoting a welding reaction between the puddle and the cast iron substrate. The plasma spraying is continued progressively along the cast iron substrate to be coated while maintaining the alloy puddle between the plasma arc and the cast iron until completion of the coating thereof. The invention also relates to a composite article of manufacture.
    • 使用等离子体转移电弧工艺来提供在焊接界面处具有最小孔隙度的在铸铁部件上焊接镍基合金涂层的方法,其中铸铁部分电耦合到等离子体形成电路, 流入等离子弧的粉末流入铸铁部件的表面。 该方法还在于控制喷涂期间镍基合金的沉积,以保持合金在转移电弧等离子体和铸铁部分基板之间的熔池,以保护其免受过渡和燃烧的转移电弧,同时促进焊接反应 在水坑和铸铁衬底之间。 等离子体喷涂沿着待涂覆的铸铁基材逐渐延续,同时保持等离子弧和铸铁之间的合金熔池,直到其涂层完成。 本发明还涉及复合制品。