Laminar cooling roll is installed between the finishing mill and the recoiler which is used in hot strip rolling mill. The temperature of the strip is tightly controlled by water cooling to ensure the normal operation of the coiling. The laminar cooling roll is mainly divided into the inner cooling roll and the outer cooling roll. When the hot rolling mill is in operation, friction between hot rolling strip at high temperature and high speed and roll ,and the cooling roll surface is subjected to repeated erosion and cooling of the circulating water. The main failure types of the conventional laminar cooling roll are wear of roll surface, corrosion, roll surface peeling, and roller drive chain failure.

The high-performance laminar cooling roll developed by our company adopts advanced laser cladding technology. The roll surface has excellent wear resistance and corrosion resistance. The hardened layer and the roll body are metallurgical bonding with high bonding strength. At the same time, by optimizing and improving the material and structure and the strength of the cooling roll is well improved, the phenomenon of water ingress and jamming of the bearing is effectively prevented, and the service life and reproducing times are also improved. The product technology reaches leading position both at home and abroad. The service life of the laminar cooling roll surface is twice that of the roll adopting spray welding process.

Excellent cost performance：

Excellent hardened layer performance

By utilizing the laser cladding technology characterized by rapid thermal and rapid cooling, the working procedure of preheating and annealing are eliminated. The temperature of substrate is lowered to reduce the heat affect of the work-piece. The cladding layer and the substrate are highly metallurgical bonding. The cladding layer is finely organized without fine pores, and it has excellent wear resistance and corrosion resistance.

Stability & Reliability

The roll body and the spindle head are made of higher strength material. Screw cutting, sand blasting and remelting are not required in the preparation process of the coating, which significantly improves the use intensity. of the cooling roll. Through the optimization and improvement of the bearing seal structure, the phenomena of bearing water ingress and jamming are effectively prevented.

The quality of strip steel is improved and the environmental pollution is reduced

The service life of the roller itself is extended because of its excellent wear resistance and corrosion resistance, which better improve the surface quality of the strip steel product. The production process of our company high-performance laminar cooling roll has low energy consumption and meets the requirements of green manufacturing without environmental pollution.