利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

2 条记录 (耗时 0.008 秒)

    Producing metal member with enhanced corrosion resistance by salt bath nitriding
    1.
    发明公开
    Producing metal member with enhanced corrosion resistance by salt bath nitriding 有权
    一种制造具有由盐浴氮化耐腐蚀性高的金属部件的方法

    公开(公告)号：EP1396553A1

    公开(公告)日：2004-03-10

    申请号：EP03019466.6

    申请日：2003-08-28

    申请人： Parker Netsushori Kogyo K.K.

    发明人： Eiraku, Hiroshi ,  Sawano, Yutaka ,  Yamamura, Tetsuya ,  Yashiro, Kuniji ,  Nakamura, Fumihide ,  Tenmaya, Motohiro

    IPC分类号： C23C8/52

    CPC分类号： C23C8/52

    摘要： A metal member is produced with enhanced corrosion resistance by salt bath nitriding. Specifically, in a nitriding salt bath containing Li + , Na + and K + ions as cation components and CNO - and CO 3 -- ions as anion components and enhanced in oxidizing power by addition of an oxidizing-power-enhancing substance selected from the group consisting of alkali metal hydroxides, bound water, free water and moist air, the metal member is immersed such that an nitrided layer is formed on a surface of the metal member and concurrently, an oxide film is formed on an outermost layer of the nitrided layer. As a subsequent step to the immersion in the nitriding salt bath, the metal member is immersed in a displacement cleansing salt bath which contains an alkali metal nitrate.

    摘要翻译： 所述的金属构件中产生与由盐浴氮化增强的耐腐蚀性。 具体而言，在盐浴氮化含Li <+>，的Na <+>和K <+>离子作为阳离子成分和CNO < - >和CO3 < - >离子作为阴离子成分和通过加入的氧化能力增强 氧化功率增强选自碱金属氢氧化物，束缚水，自由水和潮湿的空气中选择的物质中，金属构件浸渍在搜索氮化层没有形成在金属部件的表面和兼上氧化物电影 形成的上氮化层的最外层。 随后的在氮化盐浴中的浸渍步骤中，金属部件浸没在包含超过碱金属硝酸盐的位移清洁盐浴。