Evaluation of the Finishing Roll Surface Deterioration at Hot Strip Mill.

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概要

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• Effects of the service conditions on the roll surface deterioration in the front finishing stands of hot strip mill were analysed by observing the roll surface after each roll change and by calculating the roll surface temperature and the heat penetration depth. The roll surface temperature was varied with the rolling conditions and the steel grades rolled. The heat penetration depth was greatest at the F1 stand, and was gradually decreased in the latter stands. The roll surface deterioration was greatest at the F2 stand, which was thought to be due to the severe thermal fatigue of the F2 rolls. A parameter representing the thermal fatigue damage was developed by considering the effects fo roll surface temperature and heat penetration depth on the degradation of the roll surface. It was found that the parameter had a good correlation with the degree of the observed roll surface breakdown.

• The Iron and Steel Institute of Japanの論文

著者

• Kim Yong

  Hot Rolling Department, Pohang Iron & Steel Co., Ltd.

• Ryu Jae

  Steel Products Department, Research Institute of Industrial Science and Technology

• Kwon Ohjoon

  Steel Products Department, Research Institute of Industrial Science and Technology

• Lee Pil

  Steel Products Department, Research Institute of Industrial Science and Technology

関連論文

• Evaluation of the Finishing Roll Surface Deterioration at Hot Strip Mill.

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