摘要
建立了结晶器内方坯的热力耦合模型,采用间接耦合的数值模拟方法,分析了拉速对结晶器内铸坯的温度场、等效应力分布及坯壳凝固收缩的影响,结果表明,在一定的条件下,拉速越快,铸坯的整体温度越高,铸坯所受的等效应力及铸坯的凝固收缩越小。同时,在铸坯的同一横截面上,铸坯凝固收缩不均匀,铸坯角部的温度最低,所受的等效应力最大。
A thermal-mechanical coupling model for the square billet in continuous casting mould was established,and an indirect coupling numerical simulation method was used to analyze the effect of casting speed on the temperature field,equivalent stress distribution,and solidification shrinkage of the billet.The results showed that under certain conditions,the faster the casting speed,the higher the overall temperature of the billet,and the smaller the equivalent stress and solidification shrinkage of the billet.Meanwhile,on the same cross-section of the billet,the solidification shrinkage of the billet is uneven,and the temperature at the corners of the billet is the lowest,resulting in the highest equivalent stress.
作者
王佰双
田云生
王刚
Wang Baishuang;Tian Yunsheng;Wang Gang(Anyang Iron&Steel Co.Ltd.,Anyang 455000,Henan,China)
出处
《特钢技术》
CAS
2023年第4期8-11,共4页
Special Steel Technology
关键词
方坯
耦合分析
温度
等效应力
凝固收缩
square billet
coupling analysis
temperature
equivalent stress
solidification shrinkage
