Treatment of bending deformation of a steel tube

Frequently steel pipe is used metal structural engineering, its dimensions are very important. Steel pipe quality directly affects the quality of component processing, or eventually directly affect the overall quality of the project.

Ensure the thickness of the outer wall

However, in the the usual steel pipe procurement, often encounter serious bent of some steel pipes (particularly in larger diameter steel pipe) duration and other aspects of the pressure, but sometimes forced, received or will steel pipe down, so it must be Steel Pipe corrected as soon as possible.

Bending deformation analysis

Generated by the thermal processing deformation principle known, thermal processing (welding), the compressive plastic deformation is generated due to the unevenness of the heating temperature, the high temperature region, cooling the parts of the contraction by the other parts of the blocking of the (low-temperature region or the first cooling portion) , resulting in the residual stress and deformation. After thermal processing on the steel market steel pipe (welded pipe or heat pipe expansion) mainly to bending deformation.

Treatment program

The pipe diameter is small, relatively thick wall, you can take the the mechanical correction method (such as the use of the bending machine, jack and the corresponding fixture) corrected, the method is simple. Steel pipe diameter, the wall is relatively thin, it is inappropriate to use mechanical correction method, not only because it requires huge machinery and equipment and complex fixture, and likely to cause steel pipe local depression. Flame straightening operation, although a certain degree of difficulty, but the method is simple and good results.