Laser Quenching equipment
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Perform phase transformation hardening treatment on the metal surface to improve the hardness, wear ...
Used for surface strengthening, repair, and remanufacturing of components, the coating has high adhe...
Flexible processing of complex curved sheet metal parts, with high cutting accuracy, fast speed, and...
Specially designed for seamless welding of precision plastic components, with a small heat affected ...
The last stage blades of a steam turbine operate in a wet steam environment for a long time, and the inlet edge is susceptible to severe water droplet erosion. A 3kW fiber laser was used to melt cobalt based alloy (Stellite 6) on the inlet edge of 1Cr13 martensitic stainless steel blades, with a thickness of 1.0-1.5mm. By optimizing process parameters (laser power 1.8-2.2kW, scanning speed 6-10mm/s, overlap rate 40% -50%) and supplementing with substrate preheating at 300 ℃, a high-quality melt layer without cracks and pores was obtained. The hardness of the cladding layer reaches HRC45-50, and the corrosion resistance is improved by more than three times, which extends the overhaul cycle of the blade from the original 2-3 years to 4-6 years. This technology has been applied in many large power generation enterprises in China, saving maintenance costs of over 2 million yuan per unit annually.
