The core and working surface of most road rollers have different performance requirements. When a single material is difficult to meet the requirements, the inner layer and the outer layer can be made of two materials respectively. The composite technology can adopt multi-layer technology such as mechanical bonding and composite casting. Commonly used surfacing technology for roller surface repair.

When the wear of roller bearings is shallow, enterprises often adopt pitting corrosion or copper lining to deal with it. Wear-resistant rollers below 50 lines will be outsourced to the processing unit to repair the processing memory after spraying. However, for bearings with wear size above 0.5mm, brush plating technology is difficult to meet. Hot repair welding has a great influence on metal damage, and poor control of repair welding temperature and repair welding times has buried hidden dangers for shaft deformation and even fracture. For the same customized non-standard inner ring, the machining size and cost of customized non-standard inner ring are generally unbearable for steel rolling enterprises because of the different wear dimensions of each roll.

Repairing solar polymer metal polymer materials is a relatively mature technology. After the product is cured, it can be machined without affecting the welding thermal stress and heat, and the repair thickness is not limited. At the same time, the wear resistance of products and the concession that metal materials do not have ensure the 100% contact and cooperation of repaired parts, reduce the impact and vibration of equipment, avoid the possibility of wear, and greatly prolong the service life of equipment parts (including bearings).