【作者】 顾兴钧；

【导师】 王快社； 顾克井；

【作者基本信息】 西安建筑科技大学 ， 冶金工程， 2003， 硕士

【摘要】 本文在文献总结，调查国内外焊丝钢生产及实验研究的基础上，针对酒钢焊丝钢的生产工艺现状，对焊丝钢连铸坯中的夹杂物行为影响因素进行了综合研究。 通过采用示踪剂跟踪、系统取样、综合分析等方法，系统研究了钢包→中间包→铸坯中夹杂物水平及演变规律。焊丝钢洁净度研究结果表明：铸坯中夹杂物主要来源于钢包渣、中间包渣、结晶器渣、钢包、中间包的浸蚀物及钢液的二次氧化产物。因此，进一步控制非稳态情况下的下渣、卷渣和钢水的二次氧化，充分发挥中间包冶金、钢包吹氩和LF炉的精炼作用是去除钢中夹杂物提高焊丝钢质量的关键所在。更多还原

【Abstract】 Based on the literature summarization and investigation of present production of weld silk steel and experimental study, the means to improve the interior qualities have been discussed. The synthetic study have been made on the behavior of inclusions in weld silk steel billet.Through adoption tracer agent tracking, systemically sampling, synthetically analyzing, the level of inclusions and the changing law of inclusions have been studied by means of ladle to tundish to continuous billet. The results showed that the inclusions in the billets are mainly come from ladle slag, tundish slag, mould slag, etchant and the secondary oxidization It is very important to eliminate the secondary oxidization and to prevent the slag from ladle, tundish and mould into melt. At the same time, it is beneficial to take the advantages of argon stirring of ladle, refining of LF furnace and the metallurgy in tundish for removing the inclusions from melt.更多还原