What are the auxiliary anodes and the application of cathodic protection methods

Nowadays, metal anode is used in a very wide range, and we will make new names for the anode according to the different environment in which the anode is used, such as sacrificial anode, auxiliary anode, etc. Today, Jiaozuo Ladbrokes Light Alloy will introduce you the relevant knowledge of auxiliary anode. As the most frequently used anode material in cathodic protection, do you know how to apply it? We hope our introduction can help you to use anode materials.

Knowledge Point 1: What is an auxiliary anode

The electrode used to play an auxiliary role in the cathodic protection system is called the auxiliary anode. The auxiliary anode, through its own dissolution, forms an electrical circuit with the medium, power supply, pipe, etc., to protect the protected metal above its potential.

At present, the commonly used auxiliary anods are: magnesium alloy sacrifice anode, zinc alloy sacrifice anode, platinum niobium anode, aluminum anode, buried metal oxide anode and so on. They choose different anode materials according to the different use environment.

Knowledge Point 2: Application of cathodic protection methods

The auxiliary anode is often used in the method of cathodic protection. At present, the new method of cathodic protection, the network anode cathodic protection, is one of the more widely used cathodic protection methods in the world. It is used for the anti-corrosion of the outer wall of the bottom of the new oil storage tank. It is a mixed strip anode welded to a titanium metal joint composed of cross mesh surface, thus forming an impressed current cathode, protecting the tank bottom plate.