Aluminum alloy sacrificial anode is suitable for the cathodic protection of anti-corrosion metal of ships, machinery and equipment, Marine engineering and port facilities as well as pipelines and cables in sea mud in seawater earphones.

Most of them are used for cathodic protection of metal structures or the bottom plate of crude oil storage tanks in seawater environments, and cannot be used in soil environments with low chloride ion content (for indium-containing anodes, chloride ion content is greater than 1000ppm; Mercury anode 10000ppm). The electrode potential is -1.05V CSE. When the temperature is higher than 49℃, the capacitance decreases with the temperature, which can be referred to the formula: Z=2500-27 (T-20), (T anode operating temperature ℃). In salt water, the current capacity may be reduced by half. The aluminum anode is fixed directly to the protected structure without filler

Most metal equipment in seawater or the cathodic protection of the interior floor of a crude oil storage tank cannot be used in a soil environment with low chloride content. The electrode potential of the aluminum sacrificial anode is -1.05 volts, and the capacitance of the aluminum sacrificial anode decreases with the increase of temperature when the ambient temperature is higher than 49 degrees Celsius, which can be referred to the formula: Z=2500-27 (T-20), the working temperature of the T anode, unit ° C. In saltwater environments, the current capacity of aluminum sacrificial anodes may be reduced by half. Aluminum sacrificial anodes can be fixed directly to the structure of the equipment to be protected without the need for other substances as fillers.