GT1215S硫系易切削钢的生产实践与质量控制  

PRODUCTION PRACTICE AND QUALITY CONTROL OF GT1215S SULFUR EASY CUTTING STEEL

作　　者：郭江增 高志勇 谭雅雯 王睿智 贾铭琳 朱跃克 Guo Jiangzeng;Gao Zhiyong;Tan Yawen;Wang Ruizhi;Jia Minglin;Zhu Yueke(Henan Jiyuan Steel(Group)Company)

机构地区：[1]河南济源钢铁集团有限公司

出　　处：《河南冶金》2019年第4期54-56,共3页Henan Metallurgy

摘　　要：分析了GT1215S工序控制难点,通过对转炉、精炼过程的精确控制,选择合适的精炼造渣工艺,精准控制了终点活度氧和锰硫比。连铸采用整体式浸入水口,选用高碱度易切削钢结晶器专用保护渣,有效控制了钢坯的表面质量和内部质量,成功批量生产了硫系易切削钢。The difficulties of GT1215S process control are analyzed.Through the precise control of converter and refining process,the appropriate refining and slag making process is selected,and the endpoint activity oxygen and manganese-sulfur ratio are accurately controlled.The continuous casting adopts integral submerged nozzle and special mould flux for high basicity free-cutting steel mould,which effectively controls the surface quality and internal quality of the billet,and successfully produces sulfur series easy cutting steel in batch.

关 键 词：控制难点 GT1215S 硫系易切削钢 活度氧 结晶器保护渣 

分 类 号：TF7[冶金工程—钢铁冶金]