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A method of molten metal casting utilizing an impact pad in the tundish

a technology of impact pad and molten metal, which is applied in the direction of molten metal pouring equipment, melt-holding vessels, manufacturing tools, etc., can solve the problems of heat loss and conflux formation, prolong the time of continual casting, and laborious removal of molten metal, so as to reduce the retention time and increase the casting speed. , the effect of increasing the retention tim

Inactive Publication Date: 2019-09-19
I P C REFRACTORIES SPOL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The molten metal casting method described in this patent has several technical benefits. Firstly, it helps to improve the quality of the metal by eliminating impurities and reducing the formation of dead zones. Secondly, it prevents the tundish (a container for molten metal) from becoming blocked, which could result in a decrease in production efficiency. Lastly, this method also helps to reduce economic losses by ensuring that high-quality steel is produced.

Problems solved by technology

The residual metal and slag, which remaining in the tundish should be mechanically removed before the next casting. otherwise this slag is recycling. but its removing is laborious and it prolonging the time of continual casting.
Another problem is the dead volume, leading to heat loss and conflux formation next to tundish nozzles and then their sealing.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[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 unsaleab...

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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.

Description

TECHNICAL FIELD[0001]The present invention relates to a method of molten metal casting utilizing an impact pad with spherical top in the tundish.BACKGROUND ART[0002]Tundish is usually weldment of steel plates with reinforcing ribs and is provided with a refractory lining. The tundish nozzles are walled in the bottom of the tundish. The fact is that the tundish operations can affect the quality of the molten metal just before casting, so the development of tundish metallurgy is very important.[0003]The tundish meets various metallurgical functions as a reservoir of liquid molten metal before casting and it is the transporter of molten metal or steel for individual casting streams during changing the ladle, minimizes the casting flow splash, reduces ferrostatic pressure of the molten metal, homogenized molten metal chemically and thermally, separates the liquid metal from slag, evaluates the casting speed, monitor the temperature of the molten metal, it uniforms the speed in casting, ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B22D41/00
CPCB22D41/50B22D41/003B22D37/00B22D11/181B22D11/00B22D41/00
Inventor PRIESOL, IVAN
Owner I P C REFRACTORIES SPOL
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