Chrome Extension
WeChat Mini Program
Use on ChatGLM

Effects of Transversal Temperature Distribution and Phase State on Strip Profile During Hot Rolling Process

Qiang Dong,Zhaoyang Li,Huihui Liu,Zhongxue Wang, Li Ji, Lecheng Zhang,Zheng Qi, Guangzhou Gao

STEEL RESEARCH INTERNATIONAL(2023)

Cited 0|Views7
No score
Abstract
Transversal temperature distribution and phase transformation of the strip steel in hot rolling process are analyzed by thermographic observations and thermal simulation tests. The effects of transversal temperature distribution and phase state on strip profile are investigated by finite element (FE) simulations, in which the material model of the strip steel is generated from the thermal simulation tests and a constitutive model. FE calculation shows that the decreased temperature at the edge causes smaller strip crown with the dual-phase state, while it leads to edge bulges in strip profile under single-phase state. With the convex temperature distribution, large strip crown is witnessed under dual-phase state; small crowns or even edge bulges appear under the single-phase state. For the concave temperature distribution, opposite conclusions are drawn compared with the convex temperature distribution. Measures to prevent edge bulges and control the strip crown are proposed and applied to industrial production. Reheating the edge area and assigning large target crown to the former stand of the finishing mill can avoid the edge bulges. Strip crown of the steel is more significantly affected by the bending force under dual-phase state than that under single-phase state.
More
Translated text
Key words
FE simulations,hot rolling,phase states,strip profiles,transversal temperature distributions
AI Read Science
Must-Reading Tree
Example
Generate MRT to find the research sequence of this paper
Chat Paper
Summary is being generated by the instructions you defined