Precision Straightening Method of Thin-Walled Seamless Steel Pipes

Lian Jin Li; Jia Yang

doi:10.4028/www.scientific.net/AMR.819.65

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 819Precision Straightening Method of Thin-Walled...

Precision Straightening Method of Thin-Walled Seamless Steel Pipes

Abstract:

With the highest product performance, quality and reliability requirements, oil casing is the most demanding service conditions in the oil and gas fields. However, when solving with thin-walled seamless steel pipes by the existing straightening theory, the cross section distortion phenomenon shall not be considered, and when the proportion of diameter to wall thickness increases, an ideal straightening effect can't be obtained. With the elastic-plastic bending straightening theory, this paper analyzes straightening process of thin-walled seamless steel pipes, studies the relationship of the flattening rate, deflection and straightening force in thin-walled pipes straightening, deduces the best reduction calculation method in the practical six roller skew rolling straightening machine, and in the meantime, results of several steel pipes flattening rate are compared.

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Periodical:

Advanced Materials Research (Volume 819)

Pages:

65-70

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.819.65

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Online since:

September 2013

Authors:

Lian Jin Li, Jia Yang

Keywords:

Elastic-Plastic Theory, Flattening Rate, Oil Casing, Straightening

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References

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