Turbine main spindles

Turbine main spindles laser cladding repair

Product description：

For the steam turbine rotor shaft, the surface of the base body is formed with an alloy coating layer that is fused and has a completely different composition from the base body; the surface of the base body and the alloy layer has a micro-melting layer of 0.05 to 0.1 mm; the alloy coating layer is nickel-based, cobalt Based or iron-based alloys. WILA Laser provides laser repair methods for generator and steam turbine rotor shafts, using a preset laser cladding method. The process parameters are laser power 1200～2000W; spot diameter φ2～6mm; spot moving speed 2 ～20mm/s. The advantages of the laser repaired generator, steam turbine rotor shaft, and repair method provided by the present invention are: the bonding strength of the matrix and the laser fusion cast layer is not less than 90% of the original substrate; the fusion cast layer and its interface The structure is dense, the grains are fine, there are no holes, slag inclusions, cracks, and other defects; the surface of the repair layer has a higher creep limit, good durability, and good thermal fatigue and fracture resistance.