Method for controlling overflow of molten steel during continuous casting stop of high-manganese steel
The invention discloses a high manganese steel continuous casting pouring stopping molten steel overflow control method which comprises the following steps: when the pouring stopping pulling speed is reduced to 0.4 m/min, wide-surface water of a crystallizer is adjusted to be reduced to 3300 L/min f...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention discloses a high manganese steel continuous casting pouring stopping molten steel overflow control method which comprises the following steps: when the pouring stopping pulling speed is reduced to 0.4 m/min, wide-surface water of a crystallizer is adjusted to be reduced to 3300 L/min from 4000-4500 L/min, and the flow speed is reduced to 6.04 L/min from 7.32-7.76 m/s; adjusting water on the narrow surface of the crystallizer to be reduced from 580-620 L/m < i > n to 450 L/m < i > n, and adjusting the flow velocity to be reduced from 7.76-8.29 m/s to 6.02 L/m < i > n; adding 30-60KG of scrap iron into the molten steel in the crystallizer when the casting is stopped and the tail is discharged, and fully stirring by using an iron rod to form a blank shell at the upper part of the molten steel in the crystallizer and prevent the molten steel from overflowing from the upper part of the blank shell; and after pouring is stopped and the stopper rod is closed, soft pressing is canceled, so that the tota |
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