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Application of laser cladding copper based alloy in heat exchange tubes of seawater desalination equipment
Date:2025-12-08 14:54     Source:daokedao     Browse:3

The heat exchange tubes of seawater desalination equipment are affected by seawater corrosion and scaling, and the service life of traditional titanium tubes is only 8-10 years, with high replacement costs. The Daokedao automated laser cladding equipment uses Cu Ni Si copper nickel alloy powder to deposit a 2mm anti-corrosion layer on the inner surface of carbon steel heat exchange tubes. The corrosion resistance of the cladding layer in seawater is close to that of titanium pipes, with a thermal conductivity of 300W/(m · K), which is 20% higher than that of titanium pipes, and it is not easy to scale. The application of a certain seawater desalination plant shows that the expected service life of the heat exchange tube after cladding is 15 years, the heat exchange efficiency is improved by 10%, and the cost of a single set of equipment heat exchange tubes is reduced by 60% compared to titanium tubes. The long tube inner hole cladding technology of the equipment is suitable for the processing needs of heat exchange tubes.

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