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When it comes to anti-corrosion materials, many people may first think of products like coatings. However, coatings aren't the only effective anti-corrosion products. Products like sacrificial anodes and aluminum alloy anodes can also serve as important anti-corrosion materials. However, few people truly understand or use them. Sacrificial anode test piles are one of the most important applications of these products.
According to industry experts, currently, most domestic companies use a combination of sacrificial anodes and coatings for corrosion prevention. During the maintenance of platform legs, technicians discovered that uneven dissolution of sacrificial anodes in water can easily lead to grain shedding, shortening the anode's service life. For sacrificial anodes buried in sea mud, corrosion products adhere to the anode surface and are difficult to remove, hindering its continued operation and preventing it from effectively protecting submarine pipelines.
Sacrificial anode test piles are primarily used to test cathodic protection parameters. They are essential equipment for pipeline management and maintenance, deployed along the pipeline according to their testing function. They can be used to test pipeline potential, current, and insulation properties, as well as to detect overburden leaks and conduct AC/DC interference testing.
Currently, the practical applications of aluminum anode thermite welding molds are primarily for cathodic protection of gas, oil, and natural gas chemical steel pipes, as well as welding of power cables. Prior to welding, the pipe surface must be derusted and degreased, and their performance is exceptional. Sacrificial anode test piles are even more practical, with their main applications and uses including:
1. Remote sensing signal source for pipeline cathodic protection.
2. Accurately monitor cathodic protection status. Used for potential measurement of sacrificial anode protection.
3. Serves as a stable signal source for automatic control in impressed current cathodic protection systems, suitable for cathodic protection projects for buried pipelines and underground metal structures.
4. Can be buried in inaccessible locations requiring monitoring, such as the center of a large vessel bottom; inaccessible locations between underground fuel depots and chemical storage tanks; and pipeline networks beneath urban roads. They can be pre-buried during construction for long-term use.
