SURFACE TREATED STEEL MATERIALS

• Main Authors: KADO, SATOSHI, WATANABE, TAKASHI, AYUSAWA, SABURO, IKENO, TERUO, KAWASAKI, HIRONOBU
• Format: Patent
• Language: English; French
• Published: 26.06.1984
• Edition: 3
• 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

Surface treated steel materials coated with manganese having a film of oxyhydrated manganese compound formed thereon, which show excellent corrosion resistance, workability and weldability. The surface treated steel materials may further be coated with zinc as a base coating underlying the manganese coating or further coated with a coating of at least one substance selected from the group consisting of P, B, Si, Cu, Mn, Cr, Ni, Co, Fe, Zn, Al, Ca, Mg, Ti, Pb, Sn, inorganic carbon and their compounds and still further coated with an organic coating. The film of oxyhydrated manganese compound is formed by treatment in an aqueous solution containing Cr6+.