"COATED METALLIC MATERIAL AND MANUFACTURING METHOD FOR SAME"

• Main Authors: KOHEI UEDA, TOMOAKI HOSOKAWA, IKUYA INOUE, YUKI OBARA
• Format: Patent
• Language: English
• Published: 21.08.2015
• 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; LAYERED PRODUCTS; LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM; METALLURGY; PERFORMING OPERATIONS; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; TRANSPORTING

A coated metal material having at least two coating films comprising a first coating film containing rutile titanium oxide in a solid volume concentration of 35% or more and 70% or less, and a second coating film disposed on the surface side of the first coating film, on a portion or the entirety of the surface of a metal material, wherein the centerline average roughness Ra of the interface between the first coating film and the second coating film is 0.8 µm or more. There is provided a coated metal material having a total luminous reflectance which is higher than that of the conventional material and has an excellent formability, and a process for producing such a material.