Magnesium alloy chemical conversion complex film and preparation method thereof

The invention discloses a magnesium alloy chemical conversion complex film and a preparation method thereof, and relates to the technical field of magnesium alloy member surface protection layer preparation. The magnesium alloy chemical conversion complex film is formed by a molybdate layer, a rare...

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Bibliographische Detailangaben
Hauptverfasser:	MIAO ZHENG, SU YIN, LUAN RUIXIN, ZHU RONGXIA, ZHOU ZHANGWEN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS 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:	The invention discloses a magnesium alloy chemical conversion complex film and a preparation method thereof, and relates to the technical field of magnesium alloy member surface protection layer preparation. The magnesium alloy chemical conversion complex film is formed by a molybdate layer, a rare earth layer and a graphene layer, wherein the molybdate layer is formed by MgO and MgMoO4, the rare earth layer is formed by MgO, MgMoO4, La2O3 and Nd2O3, and the graphene layer is formed by gamma-aminopropyl triethoxysilane KH-550 and graphene oxide GO. The preparation method of the magnesium alloy chemical conversion complex film comprises the steps of surface pretreatment, preparation of the molybdate layer, preparation of the rare earth layer and preparation of the graphene layer. The chemical conversion liquid of the prepared chemical conversion complex film meets the green environment requirement, and the prepared chemical conversion complex film is well combined with a matrix and high in corrosion resistance