MATERIAL FOR WELDED CAN EXCELLENT IN SEAM WELDABILITY AND ADHESIVE STRENGTH OF PAINT

• Main Authors: KATAYAMA TOSHINORI, INOUE MITSUTOSHI, ICHIKAWA TAKASHI, OGA TOMOYA
• Format: Patent
• Language: English
• Published: 27.04.1993
• Subjects: 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

PURPOSE:To provide the material for a welded can having a wide suitable welding range at the time of manufacturing a can by welding and excellent in adhesive strength of paint. CONSTITUTION:The surface of a steel sheet is applied with an Ni-Fe alloy or Ni-P alloy plating layer of 100 to 2500mg/m , its surface is applied with an Sn plating layer in which Sn grains having 0.2 to 4mu grain size are scattered by 10 to 400mg/m and its surface is applied with a chromate film to form the material for a welded can. This cover is valued as the material for a can excellent in seam weldability because the contact resistance between steel sheets is small and excellent in corrosion resistance after coating as well.