Aluminium Anode

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  • Aluminium anodes are cast from special high grade 99.8% min. high purity aluminium alloys of zinc and indium and has been developed specifically for use in sea-water and sea-mud.
  • They are characterized by their light weight, smooth corrosion pattern, high electrical capacity and stability.
  • One of the Sacrificial anodes which means sacrifice themselves by wasting away due to electrochemical process of corrosion.
  • Anodes are casted in to a variety of weights and configurations in order to address numerous installation possibilities.
  • Aluminum anodes are available in spherical, 3" x 60", 3" x 30", coffee can style, 4" x 4" x 60", 3" x 3" x 48" and 12 pound anodes.
  • Aluminium anodes are prepared from commercial grade aluminum and minor amounts of indium, zinc and are improved by the addition of small amount of silicon.
  • Aluminum anodes are  produced brine type applications and  built to have a low resistant capability allowing the anode to have a much longer life cycle.
  • The low current efficiency of commercially available aluminum hindered its use in Cathodic protection systems.
  • Aluminum anodes are known for its high current capacity, desirable operating potential, and constant potential over time.
  • Protection of storage tanks and are frequently installed on ship hulls and jetties to control corrosion in sea water environment.
  • When compared to zinc, aluminum anode alloy is better more active, but pure aluminum is useless as an anode material because it forms an insulating oxide coating.
  • Aluminum is only anode material which has last longer feature because of their increased current capacity.
  • In a textile industry, aluminum anodes are treated with electrolytic water treatment which used to treat the cooling water from a cooling tower.
  • Studies shows that aluminium alloy anodes are used widely for Cathodic protection (reduction of corrosion rate) in seawater.

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