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Chemical industry reaction kettle stirring shaft repair: corrosion resistance upgrade of Daokedao laser cladding vs traditional surfacing
Date:2025-11-07 14:33     Source:daokedao     Browse:8

The stirring shaft of the chemical reaction kettle works in strong acid and alkali media. The traditional welding repair of the stirring shaft has poor corrosion resistance and is easily corroded and worn, resulting in a decrease in stirring efficiency, medium leakage, and a service life of only 1-2 years.

The Daokedao laser cladding equipment uses nickel based alloy powder with strong corrosion resistance. The corrosion rate of the cladding layer in a 50% sulfuric acid and 30% sodium hydroxide solution is only 0.002mm/a, which is 1/8 of that of the overlay layer. The coating has a density of 99.9% and there is no risk of leakage.

The service life of the repaired mixing shaft has been extended to 4-5 years. After adopting this technology, a certain chemical enterprise has reduced the loss of medium leakage by more than 500000 yuan per year, ensuring the safety of chemical production and adapting to the corrosive working conditions of the chemical industry.


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