小板坯粘结漏钢原因分析及控制措施  

CAUSE ANALYSIS AND SOLUTION ON STICKING BREAKOUT OF SMALL SLAB

作　　者：李继 陈守杰 王勇源 夏永章 闫威 Li Ji;Chen Shoujie;Wang Yongyuan;Xia Yongzhang;Yan Wei(Technical Center of Henan Tongyu Metallurgy Materials Group Co., Ltd.,Nanyang 474500, Henan;Chifeng Yuanlian Iron & Steel Co., Ltd,Chifeng 024000, Neimenggu;State Key Laboratory of Metallurgical New Technology, Beijing University of Science and Technology, Beijing 100083)

机构地区：[1]河南通宇冶材集团有限公司技术中心,河南南阳474500 [2]赤峰远联钢铁有限责任公司,内蒙古赤峰024000 [3]北京科技大学钢铁冶金新技术国家重点实验室,北京100083

出　　处：《河北冶金》2022年第4期51-54,共4页Hebei Metallurgy

摘　　要：针对赤峰远联钢厂小板坯高拉速Q235B钢种投产初期频繁粘结漏钢的问题,通过现场调研和数据分析,研究了钢种特性、铸机设备、工艺、操作、保护渣特性,发现上述因素与连铸结晶器保护渣未能合理匹配是导致小板坯粘结漏钢的主要原因。通过对连铸结晶器保护渣进行优化调整,并对连铸设备、工艺操作进行改进等措施,粘结漏钢几率由41起降至2起,确保了连铸生产的稳定顺行。In the initial production period,there always are molten steel leakage problems of small slab high speed Q235B steel in Chifeng Yuanlian Iron&Steel Co.,Ltd.Through field investigation and data analysis,studying the steel characteristics,casting machine,operation,mould powder characteristic,it found the main reason is the continuous casting mould powder.By optimizing and adjusting the mould powder and improving the process operation of continuous casting equipment,the probability of steel leakage was reduced from 41 to 2,which ensured the stable and smooth operation of continuous casting production.

关 键 词：小板坯 高拉速 粘结漏钢 结晶器 水口 保护渣 

分 类 号：TF341.6[冶金工程—冶金机械及自动化]