PRETREATING METHOD FOR PLATING ALUMINUM OR ALUMINUM ALLOY, PLATING METHOD AND PLATED PRODUCT

PROBLEM TO BE SOLVED: To provide plating excellent in the plating adhesiveness in which excessive etching in non-plating part is prevented and a plated size precision and the strength are kept and which is resistant to a severe work after plating. SOLUTION: A pretreating method for plating aluminum...

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Bibliographische Detailangaben
Hauptverfasser:	URATA KAZUYA, KITAGAWA KAZUHIRO, TACHIBANA KUNIO
Format:	Patent
Sprache:	eng
Schlagworte:	APPARATUS THEREFOR ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES BLASTING CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMBUSTION ENGINES CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES DIFFUSION TREATMENT OF METALLIC MATERIAL ELECTROFORMING ELECTROLYTIC OR ELECTROPHORETIC PROCESSES HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL LIGHTING MECHANICAL ENGINEERING METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROMOBJECTS WEAPONS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide plating excellent in the plating adhesiveness in which excessive etching in non-plating part is prevented and a plated size precision and the strength are kept and which is resistant to a severe work after plating. SOLUTION: A pretreating method for plating aluminum or an aluminum alloy is the pretreatment for performing chromium-plating, nickel-base plating or iron-base plating on the surface of the material to be plated, composed of aluminum or an aluminum alloy, and after performing the electrolytic etching in aqueous solution-containing hydroxide of alkali metal and organic acid having complexing property or its alkali metal salt, the etching dipped into the alkali solution is performed. COPYRIGHT: (C)2005,JPO&NCIPI