SURFACE TREATING METHOD FOR INTERNAL/EXTERNAL METAL MATERIAL AND INTERNAL/EXTERNAL METAL MATERIAL TREATED BY THE SAME

摘要

The present invention relates to a method for surface treatment of a metal interior and exterior material and a surface-treated metal interior and exterior material, and more particularly, to form a barrier layer with a valve metal on the surface of a metal interior and exterior material, and a surface layer with an aluminum (Al)-based metal thereon It relates to a surface treatment method of a metal interior and exterior material, in which the surface is anodized, dyed and sealed after forming. According to the present invention, there is an effect that it is possible to realize various, beautiful and uniform surface colors of metal interior and exterior materials by applying anodizing, coloring, and sealing processing techniques to the surface of various metal interior and exterior materials such as zinc, stainless steel, and magnesium.