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Applications of Four-roll Finished Pass in Rail Production
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Yong-ming Wang1, Li-hong Guo2, Di Wu3
Science & Technology of Baotou Steel | 2022, 48(1) : 6 - 10
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Science & Technology of Baotou Steel | 2022, 48(1): 6-10
• Expert Forum •
Applications of Four-roll Finished Pass in Rail Production
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Yong-ming Wang1, Li-hong Guo2, Di Wu3
Affiliations
  • 1 Chief Engineer Office of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 2 Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
  • 3 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China
Published: 2022-02-25
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In this paper, the improvement is from the point of view of deformation process by increasing the number of roll in finished pass to form four-roll finished pass, increasing the constraint in direction of depth of rail and limiting free spread of rail surface so as to improve dimensional accuracy of depth of rail aiming at the existing problems in universal rolling of rail. The numerical calculation is performed using ANSYS/LS-dyna, deformation states in different conditions are analyzed, defects are amended so that the optimal solution is obtained. The better effects are obtained by applying it in production line of rail, fluctuation range of depth within the full length range of rail is reduced and defect of “high zone” caused by local depth fluctuation is solved so that the safety of running for high-speed train is improved.

rail  /  four-roll finished pass  /  rolling  /  LS-dyna  /  simulating calculation
Yong-ming Wang, Li-hong Guo, Di Wu. Applications of Four-roll Finished Pass in Rail Production[J]. Science & Technology of Baotou Steel, 2022 , 48 (1) : 6 -10 .
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Article Info
  • Receive Date：2021-11-25
  • Online Date：2025-11-24
  • Published：2022-02-25
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  • Received：2021-11-25
Affiliations
    1 Chief Engineer Office of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    2 Rail and Beam Rolling Plant of Inner Mongolia Baotou Steel Union Co., Ltd., Baotou 014010, Inner Mongolia Autonomous Region, China
    3 State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, Liaoning, China
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