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使用连铸中间包和盛钢桶浇注铝脱氧钢或稀土钢时,往往发生水口结瘤堵塞现象,造成注流变细,甚至断流,严重地影响着钢的产量、质量、品种和成本等主要经济技术指标的完成,同时给生产调度、浇注操作带来一定的困难。因此,这个问题已引起了国内外极大的重视。几年来,进行了大量工作,采取了各种措施,但还没有获得满意的效果,目前仍在探索中。一般说来,加稀土钢比铝脱氧钢有更严重的水口堵塞倾向。同时,铝脱氧钢和
When using continuous casting tundish and ladle to pour aluminum deoxidized steel or rare earth steel, the clogging of the nozzle often occurs, which leads to the thinning of the injection flow and even the interruption of flow, seriously affecting the yield, quality, variety and cost of steel, etc. The completion of major economic and technical indicators, to the production scheduling, pouring operation to bring some difficulties. Therefore, this issue has drawn great attention at home and abroad. Over the past few years, a great deal of work has been done and various measures have been taken, but no satisfactory results have been obtained and exploration is still under way. In general, Rare earth steel has a more severe plugging tendency than aluminum deoxidized steel. At the same time, aluminum deoxidized steel and