工程科学学报2016，Vol.38Issue(4)：555-560,6.DOI:10.13374/j.issn2095-9389.2016.04.015
基于密集冷却工艺的700 MPa级高强带钢减小残余应力研究
Research on relaxing the residual stress of 700 MPa high strength strip steel based on intensive cooling technology
摘要
Abstract
Intensive cooling technology is widely used to produce high strength strip steel, but high cooling rate leads to some de-fects, such as shape waves caused by high residual stress. A numerical model was established to achieve a coupling calculation of tem-perature, phase transformation and stress for high strength steel ( 700 MPa ) during intensive cooling. Commercial FEM software ABAQUS was used to build coupled models that verified by a series of experiments. The effects of edge masking and initial temperature difference on the residual stress were studied by modifying initial and boundary conditions. It is concluded that reducing the initial temperature difference is more effective to release the residual stress of strip steel during cooling. Proven by industrial experiments, these research results would be used to lower the residual stress and improve the quality of hot-rolled strips.关键词
高强钢/带钢/冷却/残余应力/有限元法Key words
high strength steel/strip steel/cooling/residual stress/finite element method分类
矿业与冶金引用本文复制引用
邱增帅,邵健,何安瑞,杨荃,夏小明..基于密集冷却工艺的700 MPa级高强带钢减小残余应力研究[J].工程科学学报,2016,38(4):555-560,6.基金项目
国家自然科学基金资助项目(51404021) （51404021）
北京市自然科学基金资助项目(3154035) （3154035）
中央高校基本科研业务费资助项目( FRF- TP-14-103A2) （ FRF- TP-14-103A2）
