Integral forming anti-oxidation long-life iron shell tundish water port

Abstract

The invention discloses an integral forming anti-oxidation long-life iron shell tundish water port. An upper water port (1) and a lower water port (2) are included. The upper water port (1) is composed of an upper water port body (3), an upper water port zirconia lining (4), an upper water port molten steel through hole (5), an upper water port boss (6), an upper water port bowl opening (7) and anupper water port iron shell (8). The lower water port (2) is composed of a lower water port body (9), a lower water port zirconia lining (10), a lower water port boss (11), a lower water port supporting frame (12), a lower water port molten steel through hole (13), a lower water port iron shell (14), a lower water port bowl opening (15) and a lower water port trapezoid hole (16). Through an integrated structure integrally formed through the upper water port and the lower water port and additional arrangement of a layer of iron shell on the outer side of each of the upper water port and the lower water port, the molten steel scouring resisting and slag erosion resisting performance of the tundish water port is enhanced, the lower water port body is in a bowl opening spherical surface bodydesign, air inflow is avoided, and the quality of steelmaking production is improved.

Description

technical field [0001] The invention relates to the technical field of continuous casting of refractory materials, in particular to an integrally formed anti-oxidation long-life iron shell tundish nozzle. Background technique [0002] In the process of continuous steel casting, molten steel continuously passes through the water-cooled crystallizer, condenses into a hard shell, and then is continuously pulled out from the outlet below the crystallizer, cooled by spraying water, and solidified to form a steel billet of the desired shape. The tundish nozzle is an important part of the continuous casting production process. In continuous steel casting, the existing tundish nozzles are usually embedded with zirconium cores inside the body of the upper nozzle and the lower nozzle, and then bonded to the surface of the slide plate. The performance of resistance to molten steel erosion and slag erosion is poor, and the diameter of the upper and lower ends of the through hole of the...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome that the existing tundish nozzle is usually embedded with a zirconium core inside the nozzle body, and then bonded to the surface of the slide plate. The performance of corrosion resistance to slag is poor, and when it is matched with a bowl-shaped intrusive nozzle, there is often a large gap, and the air is easy to enter, causing the molten steel to oxidize to form oxides and impurities, and the oxides and impurities formed are mixed. In molten steel, there are technical issues that affect the production quality of high-precision steel products. To provide an integrally formed anti-oxidation long-life iron shell tundish nozzle, which has excellent anti-oxidation, resistance to molten steel erosion and slag erosion, and prolongs the tundish. Improve the service life of the nozzle, improve the quality of steel produced, and meet the production needs of continuous casting steel

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