ALUMINUM PLATED STEEL SHEET OR ALUMINUM PLATED STEEL SHEET FOR FUEL TANK

• Main Authors: FUDA MASAHIRO, MAKI JUN, OKADA NOBUYOSHI, ISAKI TERUAKI
• Format: Patent
• Language: English
• Published: 23.06.1998
• Edition: 6
• 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 produce a rust preventive steel sheet combining excellent press formability, corrosion resistance and weldability as the stock for an automotive fuel tank. SOLUTION: This aluminum plated steel sheet in which chromate coating is formed is the one in which the surface of a coating layer of a steel sheet in which at least one side is coated with an Al or Al-(3 to 15%) Si series alloy, the coating weight is regulated to 10 to 35mg/m expressed in terms of chromium. In this case, as for the stock for a fuel tank, the coating weight is regulated to 20 to 30mg/m expressed in terms of chromium. The aluminum plated steel sheet has good corrosion resistance and workability, is furthermore applicable to wide welding methods and is suitable as the stock for a fuel tank.