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borna godaz

manufacturer of cathodic protection anodes

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Lead- Silver Anode

Monday, 14 May 2018 00:00

Lead- Silver Anode

 

Lead-silver anodes are designed to be used in marine industries, especially the protection of vessels. The formation and maintenance of a layer of lead oxide on the anode surface is essential, and therefore alloys lead with other metals that make this layer more stable. This layer releases current and leads to lead only as a conductor and source of lead oxide. Lead oxide in seawater is insoluble.
Lead base anodes are divided into two groups in terms of chemical composition:
1) Base lead anode containing silver (type A)
2) Base lead anode containing silver and antimony (type B)
The chemical composition of lead anode in accordance with MIL-A-23871A is as follows:

Lead-silver anodes are suitable because of the low corrosion rate and high flow rates for use in marine and marine structures (bases of docks, pillars, etc.).
Lead anodes are made in different shapes and are fitted under the protection according to the shape and weight of the anodes in the form of immersion (harnessed by a rope) or by special preservative devices adjacent to the structure.

Lead-silver anodes are designed for use in cathodic protection injection systems and are made of high-purity materials. They are most used in marine industries, especially in ship protection. The weight of these anodes makes them immersed in marine environments. Formation and maintenance of lead oxide layer (PbO2) on anode surface is essential. This layer releases current and leads to lead only as a conductor and source of lead oxide. Lead oxide in seawater is insoluble.

The density of these anodes is 160-120-100-200 A / m2 and lead speed is about 0.1 kg / A.Year.

Contact us

02156233930-02156233929
02156232587-02156236590
02156230236
 Info@bornagodaz.com
Tehran Province, Shamsabad Industrial City, Golbarg Number 2

     

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Bornagodaz

BORNA Godaz Company was established on the path of development of BORNA Electronic activities in the field of cathodic protection in 2004. ...

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