Colour anodizing on aluminium in metal industry

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  • Colour anodizing flowsheet


Colour anodizing flowsheet1.jpg

Literature: BAT for the Surface Treatment of Metals & Plastics, 2006


Colour anodizing flowsheet2.jpg


  • Typical parameters of the process
Process Temperature [°C] Heat transfer medium Residence time Chemicals Concentration Details Literature
Electrolytical colouring 25 1/2-5 min Acid solutions containing metal salt (usally tin sulphate; for special applications: nickel, copper, cobalt can be used) BAT for the surface treatment of metals and plastics, August 2006


  • Energy losses from the surface area of heated process solutions


Energy losses from the surface area of heated process solutions.jpg

LITERATURE: BAT for the Surface Treatment of Metals and Plastics, May 2005



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