A METHOD OF MOLTEN METAL CASTING UTILIZING AN IMPACT PAD IN THE TUNDISH

Abstract

A method of molten metal casting utilizing an impact pad in the tundish introduces that the molten metal is transported into the tundish, at the bottom of which is located the impact pad with the spherical top, which captures the initial impact flow, the flow of molten metal is optimized and the molten metal is led away from the tundish.

Claims

1. A method of molten metal casting utilizing an impact pad in the tundish, characterized in that molten metal is transported into the tundish, at the bottom of which is located the impact pad with the spherical top, which captures the initial impact flow, the flow of molten metal is accelerated and optimized in terms of total volume, also the residence time is extends at lower even at higher casting speeds and tundish nozzles are opened after reaching the desired height of molten metal in the tundish, while the molten metal top is constant and the amount of flow in metal is equal to amount of metal which is leaved from the tundish through tundish nozzles to the next continuous casting equipment.

2. A method of molten metal casting utilizing an impact pad in the tundish, characterized in that molten metal is transported into the tundish, at the bottom of which is located the impact pad with the spherical top, the liquid metal flow is optimized then the liquid metal is led away from the tundish in the total potential tundish volume through the upper tundish nozzles and submerged entry nozzles to the next continuous casting equipment.

Description

BEST MODES FOR CARRYING OUT THE INVENTION

[0010] The molten metal is pouring into the tundish, at the bottom of which is located the impact pad with the spherical top, which captures the initial impact flow, prevents the molten metal splash, the flow of molten metal is accelerated and optimized in terms of total volume and eliminated the impact energies. Tundish nozzles are opened after reaching the desired height of molten metal in the tundish, while the molten metal top is constant and the amount of flow in metal is equal to amount of metal which is leaved from the tundish through tundish nozzles to the next continuous casting equipment.

[0011] A method of molten metal casting utilizing an impact pad is proposed either for the regime of molten metal casting with changed characteristics, hence when there is molten metal with another quality in next ladle as it was in the previous ladle and therefore the tundish must be the most empty as possible, because the steel created by the mixture of the first and next ladle is unsaleable. The casting speed varies when the ladle is changing etc. and therefore the innovative casting method extends the retention time at lower and higher casting speeds. The molten metal is bringing into the tundish at the bottom of which is located the impact pad with the spherical top, which captures the initial casting flow, eliminates the impact energies, the liquid metal is led away from the tundish in the total potential tundish volume through the upper tundish nozzles and submerged entry nozzles to the next continuous casting equipment.

INDUSTRIAL APPLICABILITY

[0012] The invention is industrial applicable in the field of metallurgy, particularly for the production of steel alloys, allowing big steel mills to meet the requirements of small amounts of alloy steel and economically efficient use of existing facilities,

CITATION LIST

[0013] Patent Literature: SK 288043