Transactions of Materials and Heat Treatment

Title：Influence of friction on edge seam defect for 430 stainless steel plate during hot rolling process

Authors： Zeng Huaxu Zhang Liwen Zhang Chi Xue Li

Unit： School of Materials Science and Engineering Dalian University of Technology

KeyWords： 430 stainless steel hot rolling friction edge seam defect metal flow side turn

ClassificationCode：TG142.1

year,vol(issue):pagenumber：2024,49(4):189-193

Abstract：

In order to improve the surface quality of hot-rolled plates, a four-pass reciprocating rolling model was developed by finite element software MSC.Marc to simulate the side turn phenomenon in the hot rolling process of 430 stainless steel plate, and the influence of friction factor on the side turn process was analyzed. The research results show that the side turn occurs only when the reduction amount of plate reaches a certain degree, and the degree of side turn for plate increases with the continuous rolling process. When the friction factor decreases, the degree of side turn decreases, until the friction factor is less than 0.2, the side turn does not occur. It can be seen that lubricating the surface of slab can effectively reduce the trimming loss caused by edge seam defects. In addition, by analyzing the displacement distribution of plate along the width direction, it is found that the reason why the friction can affect the side turn process is that different friction forces result in the difference of flow velocity between the metal on the surface and the metal on the side along the width direction, which indirectly affects the side turn.

Funds：

辽宁省自然科学基金资助项目（2019KF0506）

作者简介：曾华旭（1995-），男，硕士研究生 E-mail：87881653@qq.com 通信作者：张立文（1962-），男，博士，教授 E-mail：commat@mail.dlut.edu.cn

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