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为改善某些钢种在连铸过程中的可铸性而对其进行了钙处理,由于钙处理的结果,作为由代表结晶器液面控制程度的参数标定的可铸性通常都得到了改善。如果能够避免生成铝酸镁,那么就可以预期获得比较稳定的结果。氧化铝夹杂物中镁含量越高,夹杂物的变性程度越小。已经发现,当钢液温度从1570℃增加到1610℃时,钙在钢液中的保留率会从10%增加到25%。列出的间接证明是:当钢中硫含量一定时,在钢液冷
In order to improve the castability of certain steels in the continuous casting process, they are treated with calcium, and as a result of the calcium treatment, castability, which is calibrated as a parameter representative of the degree of liquid level control of the mold, is usually improved . If you can avoid the formation of magnesium aluminate, then you can expect to get more stable results. The higher the content of magnesium in the inclusions of alumina, the less the degree of denaturation of inclusions. It has been found that the retention of calcium in the molten steel increases from 10% to 25% as the temperature of the molten steel increases from 1570 ° C to 1610 ° C. The indirect proof is listed as follows: When the sulfur content in steel is fixed, the liquid steel is cold