中间包冶金技术发展趋势

Development trend of tundish metallurgical technology

中间包是钢水凝固之前的最后一个耐火材料容器,是由间歇操作转向连续操作的衔接点,也是连铸的起点,在连铸过程中起着缓冲、减压、分流、连浇、净化和保护钢液、改善凝固组织、促进钢液均匀性等作用。伴随着高品质钢对洁净度和质量要求的提升,中间包冶金的功能越来越重要,中间包冶金技术的发展正是围绕着不断拓展和完善中间包冶金功能展开的,其核心目标是完成对凝固前钢液的充分净化,实现连铸的恒温、低过热度浇注。综述总结了中间包冶金功能实现的技术途径和发展趋势。

Tundish is the last refractory container before the molten steel solidifies.It is the connection point from intermittent operation to continuous operation and the starting point of continuous casting.It plays a role in buffering,decompression,diversion,continuous casting,purification and protection of molten steel,improving the solidification structure,and promoting the uniformity of molten steel during continuous casting.With the improvement of the cleanliness and quality requirements of high-quality steel,the function of tundish metallurgy is becoming more and more important.The development of tundish metallurgical technology is centered on the continuous expansion and improvement of tundish metallurgical functions.Its core goal is to fully purify the molten steel before solidification,and to realize constant temperature and low superheat pouring of continuous casting.The technical approaches and development trends to realize tundish metallurgical functions are summarized.