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1·Because of the low oxygen blowing intensity, long smelting period and low billet yield, the oxygen system is rebuilt in No.

天钢第二炼钢厂供氧系统供氧强度低，冶炼周期长，限制了铸坯产量的提高。

2·The converter can increase smelting a stove steel daily throng shorten melting period.

冶炼周期缩短，每天可多炼一炉钢；

3·Abstract: the reasons of CaSi furnace bottom rising are analysed, the operation procedure to prolong smelting CaSi period in 1mva electric furnace and the remarkable results achieved are expounded.

文摘：对硅钙电炉炉底上涨原因进行了分析，并阐述了延长1mva硅钙电炉生产周期的工艺操作方法及所取得的明显效果。

4·The reasons of CaSi furnace bottom rising are analysed, the operation procedure to prolong smelting CaSi period in 1mva electric furnace and the remarkable results achieved are expounded.

对硅钙电炉炉底上涨原因进行了分析，并阐述了延长1mva硅钙电炉生产周期的工艺操作方法及所取得的明显效果。