Heavy load equipment in the metallurgical industry, such as rolling mills, continuous casting crystallizers, conveyor rollers, and hydraulic cylinders, are subjected to long-term high-temperature radiation, mechanical wear, and thermal fatigue alternating effects. The surface is prone to cracking, peeling, and dimensional deviations. Traditional welding repair has a large heat affected zone, weak bonding strength, and limited lifespan improvement. The research institute has adopted laser cladding additive manufacturing technology to address the above-mentioned pain points, accurately cladding specialized alloy powders such as martensitic stainless steel and nickel based tungsten carbide at the damaged area, forming a low dilution rate and high bonding strength wear-resistant and corrosion-resistant strengthening layer, effectively suppressing hot crack propagation and significantly improving surface hardness and thermal shock resistance, making the service life of repaired parts more than twice that of new products, significantly reducing production line downtime and spare parts consumption, and providing key technical support for efficient and low-carbon operation and maintenance of metallurgical equipment.
