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Sacrificial anode method is the earliest electrochemical protection method. It is easy to operate and does not interfere with adjacent facilities. Sacrificial anode is also a means of anti-interference and corrosion, which can be used for current drainage, lightning protection and anti-static grounding. Compared with the forced current protection method, the sacrificial anode method has unique advantages and functions, so it is also paid attention to.
In recent years, sacrificial anode technology has been popularized and developed in China. In production, it is also developing in the direction of standardization and serialization. It has been successfully applied to the protection of oil and gas pipelines, ships and offshore structures.
Principle of sacrificial anode protection
According to the principle of electrochemistry, two kinds of metals with different electrode potentials are placed in the electrolyte system. When there are wires connected, the current flows. At this time, the metal with negative electrode potential is the anode and the current source of cathodic protection is the difference of electrode potential between the two metals. This is the basic principle of sacrificial anode method.
Magnesium anode rod (magnesium rod) magnesium is the lowest potential metal in the electrochemical sequence, which is physiologically non-toxic. Magnesium alloy is used as the anode of metal components to be protected. It is easy to lose electrons and protect metal components from losing electrons and being oxidized.
Shandong Linyi Bosi conductive materials Co., Ltd. is a high-tech enterprise specializing in the production of MMO flexible anode, conductive polymer flexible anode and titanium coated anode, mainly providing cathodic protection technology, engineering design, installation and technical services.