Electro slag ingot casting device adopting molten steel shunt and gas protection

Abstract

The invention belongs to the technical field of electro slag metallurgy, and discloses an electro slag ingot casting device adopting molten steel shunt and gas protection, and the electro slag ingot casting device is used for solving the problem of poor quality in the existing electro slag ingot pouring technology. The electro slag ingot casting device disclosed by the invention comprises a crystallizer and an electrode, wherein a metal pool used for accommodating molten steel is arranged at the lower part of the crystallizer, a suspension slag material layer is arranged at the middle of the crystallizer, and the lower end of the electrode is stretched into the slag material. The electro slag ingot casting device is characterized in that the crystallizer is provided with a molten steel shunt, an annular pouring gate used for injecting the molten steel into the slag material is formed in the bottom end of the molten steel shunt, and the upper end of the molten steel shunt is communicated with a tundish used for accommodating the molten steel by virtue of an elongated nozzle. The electro slag ingot pouring device disclosed by the invention is provided with the annular pouring gate and the molten steel shunting pipe, so that the contact area of the molten steel (steel stream) and the slag material can be greatly increased to promote foreign matters in the molten steel to be absorbed and dissolved by the slag, so as to improve the quality of electro slag casting steel.

Description

technical field [0001] The invention belongs to the technical field of electroslag metallurgy, and in particular relates to an electroslag ingot pouring device adopting molten steel flow and gas protection. Background technique [0002] Internationally, electroslag casting metallurgical technology has been developed and applied since the 1980s. my country's electroslag metallurgy expert, Professor Fu Jie of University of Science and Technology Beijing pointed out in 〖China Metallurgy〗 2010 No. 5: Electroslag casting technology has significant advantages of energy saving, the metal yield is definitely higher than ordinary, dense organization and mechanical properties I believe it will be better than ordinary ingots, and it is worthy of affirmation and development. Liquid metal electroslag casting of large ingots has been the ideal of the pioneers of electroslag metallurgy for many years, but there is no successful experience of electroslag casting of large ingots. Professor ...

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem of poor quality existing in the existing electroslag pouring technology, an electroslag ingot pouring device using molten steel diversion and gas protection is provided, which can promote the absorption and dissolution of impurities in steel by molten slag, and at the same time block the The contact between oxygen and molten steel reduces the content of dissolved oxygen in steel, reduces the formation of new impurities in steel ingots, and improves the quality of electroslag steel, so that the quality of electroslag cast electroslag ingots can be compared with that of traditional electroslag smelting steel. comparable in quality

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