How to repair the wear of the extrusion roller? Optionally, the repair can be carried out with KNM60 submerged arc surfacing flux-cored wire. This wire has excellent wear resistance and can meet the needs of high-strength, high-durability work, making it ideal for repairing worn parts in industrial production.
First of all, we need to surface treat the extrusion roller to remove impurities and oxide layers from the surface to expose the metallic nature. This step is crucial because a clean surface ensures that the wire is tightly bonded to the base metal and improves the quality of the repair. In addition, the roll should be preheated to above 450 degrees before welding, and kept warm at 450 degrees for 10 hours.
Next, we will carry out submerged arc surfacing according to the specified process parameters. In this process, the wire melts under the action of an electric arc to form a molten pool. As the arc moves, the liquid metal in the molten pool gradually solidifies, forming a continuous overlay layer. This weld overlay layer is tightly integrated with the base metal and jointly carries the external force, ensuring the wear resistance and stability of the extrusion roller.
In addition, KNM60 submerged arc surfacing flux-cored wire also has excellent crack resistance and toughness, good welding performance, beautiful forming, easy slag removal, can effectively resist the stress action during use, and reduce the risk of cracking. This makes it better able to adapt to various complex working environments during the repair process, and improve the success rate and reliability of the repair.
Overall, the repair of worn extrusion rollers with KNM60 submerged arc surfacing flux-cored wire is an efficient and reliable repair method. It not only improves the service life of the extrusion roller and reduces the production cost, but also provides a strong guarantee for the stable operation of industrial production.