ELECTRODEPOSITION COATING METHOD

PURPOSE:To improve coating quality by preventing the defect.of electrodeposition coating. CONSTITUTION:An electrodeposition coating liquid in an electrodeposition coating tank 1 is sprayed to the surface of a material W to be coated just prior to admission into the tank 1 to impart wettability there...

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Bibliographic Details
Main Author YAMASHITA YUKIHIDE
Format Patent
LanguageEnglish
Published 02.05.1995
Edition6
Subjects
APPARATUS THEREFOR
CHEMISTRY
ELECTROFORMING
ELECTROLYTIC OR ELECTROPHORETIC PROCESSES
METALLURGY
PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTIONOF COATINGS
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Summary:PURPOSE:To improve coating quality by preventing the defect.of electrodeposition coating. CONSTITUTION:An electrodeposition coating liquid in an electrodeposition coating tank 1 is sprayed to the surface of a material W to be coated just prior to admission into the tank 1 to impart wettability thereto and to make the electric resistance of the surface uniform. The nonuniform deposition of the coating material between the immersed parts and non-immersed parts produced after the admission into the tank is thus suppressed. The liquid from an ultrafilter is sprayed to the surface of the material W to be coated right after emission from the electrodeposition coating 1 to remove the solids which are the case for the coating defect from the surface of the material W to be coated and simultaneously to recover the electrodeposition coating liquid into the tank 1.
Bibliography:Application Number: JP19930280466