中国机械工程Issue(21)：2952-2957,6.DOI:10.3969/j.issn.1004-132X.2015.21.019
基于高温铸坯蠕变规律的连铸坯幂函数连续矫直法
Power Function Continuous Straightening Method for Casting Strand Based on Creep Behavior of Metal at Elevated Temperature
摘要
Abstract
According to the recent study results of the creep behavior of metal at elevated temperG ature,a mathematical model of the strand deformation was developed and a continuous straightening curve was derived.The rollers were arranged along the curve,making the roll apron fully accommoG date the creep behavior of metal at elevated temperature.Then the strand deformation features were presented.During the straightening process,the strain rates of the strand remained constant in the middle part of the straightening zone;while at the start and the end parts of the straightening zone, the strain rates of the strand were in the form of power function.Finally,an experimental research on the curve was carried out using a pilot roll supporting system.And the experimental material was a kind of SnBi alloy to substitute the steel at elevated temperature.During the experimental process, the bending forces acting on the strand and the strains of the strand were measured.And the measureG ment results are in good agreement with the theoretical calculations.关键词
连铸/连续矫直/应变/应变速率Key words
continuous casting/continuous straightening/strain/strain rate分类
矿业与冶金引用本文复制引用
任廷志,韩培培..基于高温铸坯蠕变规律的连铸坯幂函数连续矫直法[J].中国机械工程,2015,(21):2952-2957,6.基金项目
国家科技支撑计划资助项目(2011BAF15B01) （2011BAF15B01）
