Method and an apparatus for the treatment of components by a gas mixture
    1.
    发明授权
    Method and an apparatus for the treatment of components by a gas mixture 失效
    用于通过气体混合物处理组分的方法和装置

    公开(公告)号:US5938866A

    公开(公告)日:1999-08-17

    申请号:US973650

    申请日:1998-03-25

    摘要: An apparatus for the treatment of components by means of a gas mixture, comprising mainly a first light gas and minor amounts of a second gas being heavier than the first gas, has a treatment chamber (10) in which the treatment occurs and a concentration, and purification device (19, 29, 30) in which the gas mixture is concentrated and purified to increase the concentration of the first gas. The treatment chamber (10) comprises an outlet member (19) provided in an upper part of the treatment chamber (10) and means (14, 15) being arranged to move the gas mixture upwardly and out through the outlet member (19). Said means may comprise an inlet member (14) provided in a lower part of the treatment chamber (10) and arranged to supply additional gas and to admit a laminar inward flow of said additional gas.

    摘要翻译: PCT No.PCT / SE96 / 00743 Sec。 371日期:1998年3月25日 102(e)1998年3月25日PCT PCT 1996年6月5日PCT公布。 出版物WO97 / 00974 日期1997年1月9日一种用于通过气体混合物处理组分的装置,其主要包括第一轻质气体和少量比第一气体重的第二气体,其具有处理室(10),处理室 发生浓缩和净化装置(19,29,30),其中气体混合物被浓缩和净化以增加第一气体的浓度。 处理室(10)包括设置在处理室(10)的上部的出口构件(19)和布置成使气体混合物向上并通过出口构件(19)移出的装置(14,15)。 所述装置可包括设置在处理室(10)下部的入口构件(14),并布置成供应附加气体并允许所述附加气体的层流向内流动。

    Carburizing treatment of a steel with reduction of the hydrogen content
in the carburized layer
    2.
    发明授权
    Carburizing treatment of a steel with reduction of the hydrogen content in the carburized layer 失效
    加固处理钢,减少加氢层中的氢含量

    公开(公告)号:US5194096A

    公开(公告)日:1993-03-16

    申请号:US781146

    申请日:1991-12-24

    申请人: Torsten Holm

    发明人: Torsten Holm

    IPC分类号: C21D3/06 C23C8/22

    CPC分类号: C23C8/22 C21D3/06

    摘要: Steel is carburized at a temperature within the austenitic range and in an atmosphere which comprises nitrogen, hydrogen and carbon monoxide, by lowering the hydrogen concentration in the treatment atmosphere prior to cooling steel in oil, salt or water, so as to reduce the hydrogen concentration in the carburization layer of the steel, by outward diffusion of hydrogen from the carburization layer.

    摘要翻译: PCT No.PCT / SE90 / 00409 Sec。 371 1991年12月24日第 102(e)1991年12月24日PCT PCT 1990年6月13日PCT公布。 公开号WO91 / 00367 日期:1991年1月10日。钢在奥氏体范围内的温度和包含氮,氢和一氧化碳的气氛中通过在将油,盐或水冷却之前降低处理气氛中的氢浓度来渗碳, 从而通过从渗碳层向外扩散氢来降低钢的渗碳层中的氢浓度。