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Ship industry stern shaft repair: Daokedao laser cladding solves the problem of seawater corrosion and wear
Date:2025-11-07 14:22     Source:daokedao     Browse:20

The stern shaft of a ship is immersed in seawater for a long time, facing electrochemical corrosion and propeller impact wear. Traditional painting protection can only last for 3-6 months. Arc welding repair is prone to deformation of the shaft body, and thermal spray coating is prone to peeling off under high-pressure seawater impact, with a service life of less than 1 year.

The Daokedao laser cladding equipment is customized for marine conditions, using nickel based alloys and ceramic composite powders that are resistant to seawater corrosion. The cladding layer has a density of 99.9% and can withstand salt spray tests for more than 2000 hours. The equipment adopts low-pressure environment cladding technology to avoid seawater infiltration into the melt pool and the formation of pores.

The repaired tail shaft can operate stably in marine environments for 3-5 years. After adopting this technology, a shipping company has saved over 800000 yuan in maintenance costs annually, significantly reducing ship downtime and demonstrating its core advantages in the shipbuilding industry.


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