SURFACE TREATMENT LIQUID SUITABLE FOR GALVANIZED METAL MATERIAL, AND GALVANIZED METAL MATERIAL

• Main Authors: ASHITACHI HAJIME, YASUI ATSUSHI, MIYOSHI SATSUKI, NAKAGISHI TETSUYUKI
• Format: Patent
• Language: English
• Published: 18.02.2010
• Subjects: 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

PROBLEM TO BE SOLVED: To subject a galvanized steel sheet to surface treatment which can prevent black stains from being formed when the galvanized steel sheet is coated with a quick-drying oil and is subjected to severe deep drawing work, and gives the galvanized steel sheet superior corrosion resi...