小方坯高拉速足辊长度设计探讨  

Discussion on foot roll length design of high speed for billet

作　　者：郭春光 钱亮 彭灿锋 李富帅 谢长川 韩占光 周干水 GUO Chun-guang;QIAN Liang;PEN Can-feng;LI Fu-shuai;XIE Chang-chuan;HAN Zhan-guang;ZHOU Gan-shui(Yangchun New Iron and Steel Co.,Ltd.,Yangchun 529600,Guangdong,China;Beijing Metallurgical Technology Research Institute,WISDRI CCTEC Engineering Co.,Ltd.,Beijing 100028,China)

机构地区：[1]阳春新钢铁有限责任公司,广东阳春529600 [2]中冶南方连铸技术工程有限责任公司,北京冶金技术研究院,北京100028

出　　处：《连铸》2020年第2期72-76,共5页Continuous Casting

摘　　要：针对小方坯高拉速,足辊长度的设计会对铸坯尺寸、质量及生产带来关键影响。基于中冶南方连铸三维蠕变有限元鼓肚计算模型及小方坯高拉速实践结果,给出了确定小方坯足辊长度的具体方法和标准。针对小方坯,足辊长度确定标准为2 m非夹持鼓肚量小于0.87 mm;155 mm×155 mm小方坯要满足5 m/min拉速,足辊结束位置距离结晶器弯月面应为1.18 m,需要二排足辊。现场实践证明,试验确定足辊长度的方法和标准完全可以满足小方坯高拉速的设计和生产。For billet with high casting speed,the design of foot roll length will have a key impact on billet size,quality and production.Based on the three-dimensional creep finite element bulging calculation model of WISDRI CCTEC and the practice results of billet high casting speed,the specific method and standard for determining the length of billet foot roll are given.For billet,the standard of determining the length of foot roll is 2 m non-clamping bulge less than 0.87 mm;155 mm×155 mm billet should meet 5 m/min casting speed,and the end position of foot roll should be 1.18 m from the meniscus of mould,corresponding to two rows of foot roller.Field practice proves that the method and standard for determining the length of foot roll given can fully meet the design and production of billet with high casting speed.

关 键 词：小方坯 高拉速 足辊长度 夹持长度 鼓肚 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]