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Case Study on Laser Cladding Repair of Ball Valve Sealing Surface
Date:2025-10-20 14:22     Source:daokedao     Browse:5

The sealing surface of a DN200 ball valve in a certain chemical plant has suffered severe corrosion, and repair has been carried out using Daokedao laser cladding equipment. Firstly, perform CNC machining on the damaged area to remove the corrosion layer; Then NiCrBSi powder is selected for laser cladding, with a cladding layer thickness of 1.2mm; finally, precision grinding is performed to ensure the accuracy of the sealing surface. After repair, the ball valve remained intact for 18 months, while traditional weld repair can only be used for 6-8 months. The repair of a single ball valve saves 70% of the cost and avoids equipment downtime losses, resulting in significant economic benefits.

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