Nowadays, there is still a great demand for stainless steel welded pipes, especially high-quality stainless steel welded pipes with bright surfaces that have undergone bright annealing treatment. Therefore, the high-end stainless steel welded pipe bright annealing equipment of Henkel Machinery has become a necessary equipment for welding pipe manufacturers to produce stainless steel welded pipes.

The bright annealing equipment of Henkel Machinery is a specialized equipment used to heat stainless steel pipes online to 1050 ℃, and then quickly cool them to below 100 ℃ under hydrogen protection. It can not only remove stress and ensure the quality of welded pipes, but also has a stainless steel pipe making machine production line equipped with Henkel bright annealing equipment, which eliminates the need for further treatment of steel pipes. The straightness of the steel pipes is good, and the surface of the steel pipes is bright without acid washing, It avoids environmental pollution caused by traditional pickling treatment process, eliminates the need for additional treatment and mechanical processing, and occupies less space compared to offline annealing.

The bright annealing equipment of Henkel Machinery can achieve online heating of welded pipes to 1050 ℃ through its built-in induction coil, while rapid cooling to room temperature is achieved through a cooling water circulation system. Here, we should note that the bright annealing equipment of Henkel Machinery has requirements for cooling water.

The induction heating coil and water jacket both require cooling water for cooling, but their requirements for cooling water are not the same. The cooling of the induction coil requires pure water to avoid scale, while the cooling water for the water jacket comes from the water tower and is recycled industrial water. The cooling water can be reused without wasting resources, and the replacement of soft water is about 1.5 cubic meters every year. Therefore, maintenance costs are low.