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Screw corrosion repair: a targeted solution for Daokedao laser cladding
Date:2025-11-04 14:12     Source:daokedao     Browse:6

In corrosive environments such as chemical and marine environments, screws are easily corroded by acidic and alkaline media, and traditional repair processes are difficult to solve the problem of corrosion. The pores of the thermal spray coating are prone to become corrosion channels, and the corrosion resistance of the electroplated layer is limited. The uneven metallurgical structure of the overlay layer leads to a fast corrosion rate.

Daokedao laser cladding equipment has launched a special solution for corrosive environments. Select nickel based and cobalt based alloy powders with excellent corrosion resistance, and form a dense anti-corrosion coating through precise melting, which can effectively resist corrosive media such as acid and alkali, salt spray, etc. The fusion layer is metallurgically bonded to the substrate, with no pore defects and a long-lasting and stable anti-corrosion effect.

In the repair of marine engineering equipment and chemical reaction kettle screws, the screws melted by Daokedao equipment can reach the 9th level corrosion resistance standard through salt spray testing, and the service life is more than 4 times that of traditional repairs. This solution can not only repair corroded screws, but also provide pre protection treatment for new screws, extending their service life.


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