应用Fluent对40Cr管坯水平连铸过程中温度场及传热的研究  

Study on Heat Transfer and Temperature Field of Mold for 40Cr Steel Tube Billet Horizontal Continuous Casting

作　　者：刘纲[1] 朱荣[1] 王畅[1] 宁建成[1,2] 宋景凌[1,2] 钟春生[2] 周振华[1] 董凯[1] 易操[1] 

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]湖南衡阳钢管(集团)有限公司,湖南衡阳421001

出　　处：《连铸》2009年第3期4-7,共4页Continuous Casting

摘　　要：以水平连铸40Cr圆坯结晶器内温度场分布为研究对象,采用Fluent数值模拟软件凝固传热模型并结合射钉试验共同研究了管坯在不同拉坯工艺条件下,结晶器内40Cr钢液温度场分布及凝固传热过程,并对不同拉坯参数下铸坯试样进行了检测分析。分析结果表明:水平连铸拉坯工艺参数:拉速V=2.35m/min,浇注温度T=1540℃,中间包过热度ΔT=36℃的拉坯参数下,结晶器内的温度场分布均匀稳定,铸坯质量好,产量高。采用Fluent数值模拟软件凝固传热模型并结合射钉试验可以有效地分析在不同拉坯工艺条件下水平连铸结晶器内的温度场分布及凝固传热过程,制定合理的拉坯工艺参数,减少管坯缺陷的发生,提高铸坯质量。The temperature distribution and solidification heat transfer in the mold for 40Cr steel round billet horizontal continuous casting was studied by means of solidification/melting models of Fluent software and pin shooting. The results showed that the casting speed V = 2.35 m/min, pouring temperature T = 1 540℃, the superheat of tundish AT = 36℃, which meet the product requirements,and temperature distribution is uniform and stable; the temperature distribution and solidification heat transfer process of mold varying billet withdrawal process on the horizontal continuous casting have a positive effect to improve the quality of strands, develop reasonable technological parameters, and reduce steel tube defects.

关 键 词：水平连铸 凝固传热 数值模拟 质量缺陷 

分 类 号：TF777.6[冶金工程—钢铁冶金]