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Application of Laser Cladding Titanium Alloy in Ship Tail Shaft Sealing Ring
Date:2025-12-08 14:30     Source:daokedao     Browse:3

The sealing ring of the ship's stern shaft operates under seawater immersion for a long time, which is prone to corrosion and wear, leading to oil leakage. The service life of traditional stainless steel sealing rings is only 1-2 years. The Daokedao automated laser cladding equipment uses Ti-6Al-4V titanium alloy powder to fuse a 2mm anti-corrosion and wear-resistant layer on the surface of the sealing ring. The cladding layer has excellent resistance to seawater corrosion, with no corrosion after 5000 hours of salt spray test, a hardness of HRC35-40, and a sealing surface roughness Ra ≤ 0.2 μ m. After being applied by a certain shipping company, the service life of the sealing ring has been extended to 5 years, the failure rate of tail shaft oil leakage has been reduced from 15% to 0.5%, and the annual maintenance cost of a single ship has been saved by more than 200000 yuan. The large-diameter annular cladding technology of the equipment ensures the accuracy of the sealing ring.

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