Acidic zinc phosphate solution and method
    1.
    发明授权
    Acidic zinc phosphate solution and method 失效
    酸性磷酸锌溶液及方法

    公开(公告)号:US4153479A

    公开(公告)日:1979-05-08

    申请号:US838330

    申请日:1977-09-30

    IPC分类号: B05D7/14 C23C22/17 C23F7/08

    CPC分类号: C23C22/17

    摘要: An aqueous acidic oxidant-free zinc phosphate solution contains tartaric acid, citric acid and/or a salt of either. At a pH of about 3.5 to 4.7, the solution produces a microcrystalline coating of zinc phosphate on iron or steel. The solution preferably contains nickel ion also.

    摘要翻译: 不含酸性氧化剂的磷酸锌水溶液含有酒石酸,柠檬酸和/或其盐。 在约3.5至4.7的pH下,该溶液在铁或钢上产生磷酸锌的微晶涂层。 该溶液也优选含有镍离子。