| 摘要 |
An anticorrosion treatment of an aluminium/zinc alloy surface is disclosed. The treatment includes the steps of forming on the alloy surface a coating of a solution which contain 5-40 grams of molybdenum per litre of the solution, 2-29 % by volume of a phosphoric acid, and a surface etchant. The treatment also includes drying the coating to for m a dried coating having a loading of molybdenum of at least mg/m2 of the dried coating and of phosphorus of at least 15 mg/m2 of the dri ed coating.
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