Magnesium alloy material, and method for treatment of surface of magnesium alloy material

A surface treatment, magnesium alloy technology, applied in the field of magnesium alloy materials, can solve the problems of reduced compactness, easy peeling of coating layers, oxidation of magnesium alloy materials, etc., to achieve improved reaction efficiency, good impact resistance and corrosion resistance, The effect of good corrosion and impact resistance
CN101849031AInactive Publication Date: 2010-09-29NAT INST OF ADVANCED IND SCI & TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
NAT INST OF ADVANCED IND SCI & TECH
Publication Date
2010-09-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

A magnesium alloy material is steam-cured with at least one compound selected from ammonium phosphate dibasic, ammonium dihydrogen phosphate and triammonium phosphate and water to form a complex of a phosphate-containing magnesium (e.g., Dittmarite) and magnesium hydroxide thereon. Thus, provided are: a magnesium alloy material having excellent corrosion resistance, impact resistance and the like; and a method for the treatment of the surface of a magnesium alloy material for producing a magnesium alloy material having excellent corrosion resistance, impact resistance and the like.
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Description

technical field

[0001] The invention relates to a magnesium alloy material and a surface treatment method for the magnesium alloy material. More specifically, the present invention relates to a magnesium alloy material that forms a phosphate-containing substance such as Dittmarite with a high crystallinity on its surface, and then makes the phosphoric acid-containing substance such as Dittmarite by performing steam curing using diammonium hydrogen phosphate or the like. Salt magnesium and magnesium hydroxide are compounded to form a strong coating. The present invention also relates to a surface treatment method for magnesium alloy materials. The surface treatment method is to form phosphate-containing substances such as Dittmarite with high crystallinity on the surface of magnesium alloy materials, and then use diammonium hydrogen phosphate and the like to perform steam curing, so that Phosphate-containing magnesium such as Dittmarite is composited with magnesium hydroxide t...

Claims

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