Aluminum alloy workpiece electroplating method

The invention provides an aluminum alloy workpiece electroplating method which comprises the following steps: performing high velocity oxy-fuel spraying on the surface of an aluminum alloy workpiece by adopting hydrogen as fuel gas, oxygen as combustion-supporting gas and nitrogen as powder feeding...

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Bibliographische Detailangaben
Hauptverfasser:	ZHANG SHIHENG, SUO PENGBANG, CHEN TANG, LONG JIN, XU MUYU, WANG TAIMING, CHENG XINHU, DENG WEI, BIAN HONGYAN
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS THEREFOR 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 ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION
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Beschreibung
Zusammenfassung:	The invention provides an aluminum alloy workpiece electroplating method which comprises the following steps: performing high velocity oxy-fuel spraying on the surface of an aluminum alloy workpiece by adopting hydrogen as fuel gas, oxygen as combustion-supporting gas and nitrogen as powder feeding carrier gas, so that sprayed powder is sprayed out of a high velocity oxy-fuel spraying gun, and a middle coating is obtained on the surface of the aluminum alloy workpiece; and the surface of the aluminum alloy workpiece is electroplated, and an electroplated layer is obtained on the surface of the intermediate coating. According to the technical scheme, the surface of the aluminum alloy workpiece is firstly subjected to high velocity oxy-fuel spraying, the middle coating is obtained on the surface of the aluminum alloy workpiece, the middle coating is the nickel-based alloy, and the nickel-based alloy and the electroplating coating have high affinity, so that the electroplating coating is easily attached to the s