The welding roller is currently the most commonly used, and its wear resistance depends on the hardness, toughness, and pattern form of the wear-resistant material on the roller surface. The wear-resistant material on the roller surface requires good compatibility with the intermediate layer material, high hardness, and good welding and repair performance. By pre weld and post weld treatment, the roller surface is improved in wear resistance while ensuring that there is no large-scale peeling during use. This type of overlay welding roller surface has good repairability after wear.