High-Precision Section Control Technology for High-Strength Yoke Steel Strip

Hai Nan He; Xiao Chen Wang; Quan Yang

doi:10.4028/www.scientific.net/MSF.944.212

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HomeMaterials Science ForumMaterials Science Forum Vol. 944High-Precision Section Control Technology for...

High-Precision Section Control Technology for High-Strength Yoke Steel Strip

Abstract:

The hot-rolled yoke steel plate is used in the manufacture of motor rotors for core components of large generators, which is required to ensure high strength and high-precision plate profile, especially the control of the thickness difference. High-precision cross-section control technology from rough rolling to finishing rolling for high-strength yoke steel is designed. First, through the varying contact backup roll technology and optimization of load distribution in the roughing stand, the profile of transfer bar is improved, which provides the basis for the strip shape control in the finishing mills. Secondly, the approximate rectangular section of a hot strip is obtained by high-precision shape setting and control model for finishing rolling, symmetrical variable taper work roll technology and smart shifting technology in the downstream stands. These methods solve the problem that the shape of the high-strength strip is difficult to control, and significantly enhance the shape regulation ability and control accuracy of the hot-rolled yoke. In addition, this technology has been applied to hot rolling mills with remarkable results and economic benefits.

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Periodical:

Materials Science Forum (Volume 944)

Pages:

212-221

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.944.212

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Cite this paper

Online since:

January 2019

Authors:

Hai Nan He, Xiao Chen Wang*, Quan Yang

Keywords:

High-Precision Shape Control, Hot Strip Mills, Micro-Alloy Yoke Steel, Roll Curve Design

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* - Corresponding Author

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