METHOD FOR CONVERSION COATING OF SURFACE TO MAGNESIUM OR MAGNESIUM ALLOY

PURPOSE: A method of forming a layer of conversion film on the outer surface of magnesium or magnesium alloy is provided to enhance corrosion resistance sine reactivity to acid/alkali is excellent and activity is strong. CONSTITUTION: A method of forming a layer of conversion film on the outer surfa...

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Bibliographische Detailangaben
Hauptverfasser:	SONG, TAE SEUNG, KIM, HONG GYEUN, HAN, SEONG HO, SEO, KYU HWAN, LEE, JAE EUN
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	PURPOSE: A method of forming a layer of conversion film on the outer surface of magnesium or magnesium alloy is provided to enhance corrosion resistance sine reactivity to acid/alkali is excellent and activity is strong. CONSTITUTION: A method of forming a layer of conversion film on the outer surface of magnesium or magnesium alloy comprises following steps. The outer surface of magnesium or magnesium alloy is degreased and then washed. An etching process for removing the oxide film from the outer surface of the magnesium or magnesium alloy is performed and a washing process is done. A de-smutting process for removing smut from the outer surface of the magnesium or magnesium alloy is performed and a washing process is done. A conversion film is formed on the outer surface of the magnesium or magnesium alloy and then is washed. A painting process is done on the conversion film.