ZK61M magnesium alloy conversion film treatment agent and conversion film treatment method

A ZK61M and treatment method technology, applied in the field of ZK61M magnesium alloy surface conversion coating treatment, can solve the problems of limited application promotion, poor corrosion resistance, and no environmental protection conversion coating treatment agent developed.
CN107130233AInactive Publication Date: 2017-09-05广东东明新材科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
广东东明新材科技有限公司
Publication Date
2017-09-05
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a ZK61M magnesium alloy conversion film treatment agent and a ZK61M magnesium alloy conversion film treatment method. The ZK61M magnesium alloy conversion film treatment agent comprises the following components by concentrations: 5-25 g / l of phosphoric acid, 1-25 g / l of manganous dihydrogen phosphate, 1-25 g / l of manganese nitrate, 1-25 g / l of calcium nitrate, 1-25 g / l of strontium nitrate, 1-25 g / l of magnesium nitrate, 0.1-1 g / l of metavanadate, 0.01-0.05 ml / l of dispersing agent, and the balance of water. The ZK61M magnesium alloy conversion film treatment agent performs the chemical conversion film treatment on the surface of a ZK61M magnesium alloy to form a conversion film with good adhesion, high corrosion resisting degree, salt mist resistance and good film forming uniformity.
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Description

technical field

[0001] The invention relates to the technical field of ZK61M magnesium alloy surface conversion coating treatment, in particular to a ZK61M magnesium alloy conversion coating treatment agent and a ZK61M magnesium alloy conversion coating treatment method. Background technique

[0002] At present, ZK61M (MB15) magnesium alloy is a high-strength magnesium alloy, and its specific strength exceeds that of high-strength 7075 aluminum alloy. , will bring another revolution after aluminum alloy to the field of materials. However, ZK61M (MB15) magnesium alloy has very poor corrosion resistance in air, which limits its application and popularization. ZK61M (MB15) magnesium alloy has extremely high chemical activity, so far no environmentally friendly conversion coating treatment agent with good corrosion resistance has been developed. The environmental protection treatment method of the ZK61M (MB15) magnesium alloy conversion coating is basically not available in th...

Claims

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