Steel pipe bending deformation analysis 
Deformation generated by thermal processing principle known, thermal processing (welding), due to uneven heating temperature, high temperature zone of plastic deformation produced compression, cooling contraction of the site but also by other parts of the (low-temperature cooling zone or the first part) Block , resulting in residual stress and various modifications. And the steel market after thermal processing of steel pipe (pipe or thermal expansion) is mainly for bending. 

Treatment program 

Pipe diameter is small, relatively thick wall can take mechanical correction method (such as the use rolling machine, jack and the corresponding fixture) its correction, the method is simple. However, large diameter pipe, when the wall is relatively thin, mechanical correction method should not be used because it not only requires huge and complex mechanical equipment fixture, and likely to cause localized depressions steel. The use of flame straightening method, the operation although some difficulty, but the method is simple and works well.

Hebei Abter is a leading supplier and exporter of  steel pipes in China. Abter is an exporting company who is jointly invested by 6 top steel factories ,with  the purpose to providing multiple products and professional services to the clients.we establish a long -term business relationship with many Group company.Our company is a large scale enterprise which manufacture and supply LSAW, fluid pipe, SSAW,ERW, DIN Tube, , alloy pipe, tubing, casing, line pipe, etc. With advanced technological equipment, tremendous technical strength and reliable product quality, our  steel pipes have been exported to the Middle East, Southeast Asia, Africa, South America, North America, Europe, Australia and many other countries and regions.