Guide vane

Guide vane repair service

Product description：

The water turbine guide vane wears a lot of mud and sand, and the guide vane is in full contact with the mud during operation, which is seriously affected by its erosion and is prone to problems such as wear, cracks, shrinkage, and inclusions. This will reduce the efficiency of the unit and ultimately affect the power generation.

First, clean the surface of the oil and rust layer on the surface of the runner of the turbine unit; then select the iron-based alloy powder, use the laser equipment and adjust the automatic powder feeding device, so that the alloy powder from the automatic powder feeding head falls into the laser melting pool, and adjust the feeding Powder amount, uniform and dense laser cladding layer is formed on the upper and lower crown surface processing surfaces, and the thickness of the laser cladding layer reaches 0.2-1.8mm; finally, the upper and lower crown surface processing parts of the runner are inspected by the color flaw detection method. The processing parts are required to be free of defects such as cracks and pores. The laser cladding alloy coating of the present invention is uniform and dense forms a strong metallurgical bond with the substrate and has excellent wear resistance and corrosion resistance, which can significantly improve the wear resistance of the turbine runner corrosion resistance and service life.