Treatment method for calcium in liquid steel
The present invention relates to a treatment method for calcium in liquid steel. The method comprises: carrying out a vacuum degassing treatment on liquid steel with no vacuum degassing treatment and no calcium treatment under a condition of a vacuum degree of less than 3 mb to obtain an intermediat...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The present invention relates to a treatment method for calcium in liquid steel. The method comprises: carrying out a vacuum degassing treatment on liquid steel with no vacuum degassing treatment and no calcium treatment under a condition of a vacuum degree of less than 3 mb to obtain an intermediate liquid steel; and then adding a silicon calcium barium alloy to the intermediate liquid steel under a condition of a vacuum degree of 50-200 mb to carry out a calcium treatment. According to the method, high calcium yield can be obtained, and sulfide inclusions and oxide inclusions in the liquid steel can be improved. |
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