82B铸坯拉速的优化及其对碳偏析的影响  

Parameter Optimization and Effects on Carbon Segregation of Casting Speed of 82B

作　　者：张卫华[1] 王东兴 左小坦 李京社[1] 杨树峰[1] 高维[1] ZHANG Weihua;WANG Dongxing;ZUO Xiaotan;LI Jingshe;YANG Shufeng;GAO Wei(School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing 100083, China;Wuhu Xinxing Ductile Iron Pipes Co. Ltd., Wuhu 241002, China)

机构地区：[1]北京科技大学冶金与生态工程学院,北京100083 [2]芜湖新兴铸管有限责任公司,安徽芜湖241002

出　　处：《工业加热》2017年第1期35-37,46,共4页Industrial Heating

摘　　要：以82B盘条的连铸生产为研究对象,采用ProCast商业软件根据实际生产的工艺参数建立铸坯的凝固传热模型,并利用射钉试验对模型进行校正以提高模型的准确性。在末搅位置无法前移的前提下,将拉速由1.2 m/min提高到1.4 m/min,铸坯中心C偏析由1.33降低至1.10。In combination with the actual situation of82B wire rod of a billet continuous caster,a mathematical model was established to investigate the solidification and heat transfer using ProCast package,which was validated by comparing the shell thickness achieved by the nail shooting experiment to improve the accuracy of the mathematical model.According to the experimental results,casting speed was changed from1.2m/min to1.4m/min because of the fixed position of F-EMS.Then central carbon segregation was reduced from1.33to1.10.

关 键 词：连铸 射钉法 数值模拟 拉速 

分 类 号：TF777.7[冶金工程—钢铁冶金]