ZINC PHOSPHATE IN ORGANIC ACID SOLUTION FOR CONVERSION COATING OF FERROUS METAL SURFACES

申请公布号：AU2928577(A)

申请号：AU19770029285

申请日期：1977.09.30

申请公布日期：1979.04.05

申请人：

OXY METAL INDUSTRIES CORP.

发明人：YUKIHIKO AYANO;KUNIJI YASHIRO;AKIRA NIIZUMI

分类号：B05D7/14;C23C22/17

主分类号：B05D7/14

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.

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