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Aluminium refining

There are various methods for the electrolytic oxidation of aluminium surfaces. Here, the anodizing differs mainly by the electrolyte used.

Anodising processes

  • GS = Direct current-Sulfuric acid
  • GSX = Direct current-Sulfuric acid-Oxalic acid
  • Ematal
  • CAA = Chromic acid anodisation
  • Mixed acid (TSA, BSA)
  • Hard anodising
  • Plasmachemical anodising processes