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    • 2. 发明授权
    • Process for the cold forming of iron and steel
    • 钢铁冷成型工艺
    • US4517029A
    • 1985-05-14
    • US500713
    • 1983-06-03
    • Sakae SonodaYoshio NagaeSeishi Kano
    • Sakae SonodaYoshio NagaeSeishi Kano
    • C10M111/00C10N40/24C10N50/00C10N80/00C23C22/00C23C22/13C23C22/22C23C22/83C23F7/10
    • C23C22/83C23C22/22
    • Iron and steel articles to be subjected to a cold forming operation are treated with a phosphatizing solution to form a zinc phosphate film on the surface, which film contains from about 5 to 80% by weight of the total film of zinc calcium phosphate. Thereafter, a soap type lubricant coating is applied to the zinc phosphate film. Preferably, the zinc phosphate film is formed on the surface by treating it with a phosphatizing solution which comprises from about 0.1 to about 0.35% by weight calcium ion, from about 0.1 to about 1.5% by weight zinc ion, from about 0.5 to about 3.0% by weight PO.sub.4, and from about 3.0 to about 5.0% by weight nitrate ion, which solution has a weight ratio of calcium ions:zinc ions of about 0.1-1.0:1 and a weight ratio of nitrate ions:PO.sub.4 of about 1.0-5.0:1. One or more of nickel, copper or cobalt ions may also be included in the phosphatizing solution in a total amount of from about 0.01 to about 0.2% by weight of the solution.
    • 要进行冷成型操作的钢铁制品用磷酸盐化溶液处理,以在表面形成磷酸锌膜,该膜含有约5-80重量%的磷酸锌锌的总膜。 此后,将肥皂型润滑剂涂层施加到磷酸锌膜上。 优选地,磷酸锌膜通过用磷酸盐溶液处理形成在表面上,磷酸盐溶液包含约0.1至约0.35重量%的钙离子,约0.1至约1.5重量%的锌离子,约0.5至约3.0 重量百分比的PO4和约3.0至约5.0%的硝酸根离子,该溶液的钙离子:锌离子的重量比为约0.1-1.0:1,硝酸根离子:PO4的重量比为约1.0- 5.0:1。 镍,铜或钴离子中的一种或多种也可以包含在磷酸盐溶液中,其总量为溶液重量的约0.01至约0.2%。