How to modify the bending of EN 10297-1 E355 seamless tube

The production process of EN 10297-1 E355 seamless pipe is mainly realized by drawing reduction. The reduction of tension is a continuous rolling process without a hollow base metal spindle. During rolling, the E355 steel pipe is often bent rather than straight. What is the correct way to correct the bending of en 10297-1 E355 seamless tube?


The bending degree of the EN 10297-1 E355 seamless pipe is caused by improper adjustment of the mill, residual stress during rolling and uneven cooling along pipe section and pipe length. Therefore, the straight pipe cannot be obtained directly from the mill, as long as the cold bending degree of the tube becomes straighter, the technical conditions can be met.


The basic principle of straightening is to make the EN 10297-1 E355 seamless pipe have elastic and plastic distortion and torsion degree, so that the steel pipe in the linear machine must be repeated twists and turns. The degree of repeated winding of E355 steel pipe mainly depends on the adjustment of straightene

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