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Ensure that seamless steel tube bending and straightening method
Feb 11, 2019

Seamless steel tube has been processed into a smaller degree of tortuosity also rely on mechanical things straightening machine to end.So in order to eliminate the twists and turns of seamless steel tubes, all seamless steel tubes are required to go through cold straightening.


The zigzag of seamless steel tube is caused by improper adjustment of rolling mill, residual stress during rolling and unevenness of cooling along the pipe section and length.Therefore, it is not possible to get very straight pipe directly from the mill, as long as the tortuosity of the cold straightening pipe can be satisfied with the rules of technical conditions.


The basic principle of straightening is to make seamless steel tube elasto-plastic tortuous, from large tortuous to small tortuous, so there is a need for steel tube in the straightening machine repeated tortuous.And the degree of repeated twists and turns of steel pipe is mainly determined by the adjustment of the straightener.There are many factors affecting the straightening quality, such as the original pipe tortuosity, steel pipe size and material straightening type, adjustment parameters and so on.