| 摘要 |
The invention relates to a method for producing a surface-oxidized metallic component or semifinished product, to the use thereof and also to corresponding sheet-like components, in particular exterior skin parts of a motor vehicle, such as hoods, car roofs, car doors and fenders, and/or side frames, bakeware or bathtubs. The problem addressed by the present invention, which is that of proposing a method for producing surface-oxidized components or semifinished products having an at least partially surface-oxidized surface, the method being suitable for mass production in spite of necessary forming steps, is solved by a method for producing a surface-oxidized metallic component or semifinished product comprising the following method steps: - providing a strip-shaped or sheet-shaped metallic substrate, and subsequently applying at least in certain regions at least one surface layer, on one or both sides, consisting of an alloy of one or more of the groups of the following metals: Al, Mg, Ti or Zr, - carrying out plasma electrolytic oxidation at least in certain regions of the surface layer applied to the substrate, and subsequently optionally cutting the coated substrate to length and forming it to form the component or semifinished product, wherein the thickness of that part of the surface layer oxidized by plasma electrolysis is less than 5 μm, preferably less than 3 μm, or - optionally cutting the substrate to length and forming the substrate to form the component or semifinished product, and subsequently carrying out plasma electrolytic oxidation at least in certain regions of the surface layer applied to the component or semifinished product, wherein the thickness of that part of the surface layer oxidized by plasma electrolysis is 5 μm to 200 μm. |
