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Submerged entry nozzle for continuous casting

An immersion, nozzle technology, applied in the parts of the connection device, connection, casting equipment, etc., can solve problems such as the accumulation of inclusions and expansion to adjacent areas that cannot be solved

Inactive Publication Date: 2010-05-19
CHOSUN REFRACTORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, see Figure 4 , like the submerged nozzle 10 described above, the submerged nozzle 20 has limitations in completely removing the uneven flow of molten steel because the molten steel flowing unevenly due to the slide plate 3 enters the part "P" with a patterned section. In the circular groove on the side, and make the molten steel deflect to other circular grooves 23 except some circular grooves 23, resulting in still can not solve the problem that the content accumulates on the step portion 21 and the accumulation expands to the adjacent area

Method used

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  • Submerged entry nozzle for continuous casting
  • Submerged entry nozzle for continuous casting
  • Submerged entry nozzle for continuous casting

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Embodiment Construction

[0030] Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0031] In accordance with the concept of the words used in the specification and claims can be defined so that the inventor can best explain the principles of the inventor's invention, the words used in the specification and claims need to be understood in a sense consistent with the invention technical solutions.

[0032] see Figure 5 with Image 6 , the submerged nozzle 100 for continuous casting is installed in close contact with the underside of the lower plate 3c of the slide plate 3 below the funnel 2, and includes a portion "B" with a patterned cross-section having radial circular grooves so that the steel During the passage of the liquid through the submerged nozzle 100 , the molten steel is pr...

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Abstract

The present invention relates to a submerged entry nozzle for continuous casting, and more particularly, to a submerged entry nozzle (100) for continuous casting, in which a section of a portion of anozzle is formed to have a flower pattern (103) for preventing molten steel passing through the submerged entry nozzle (100) from flowing unevenly, and inclusions from attaching to the submerged entrynozzle. The submerged entry nozzle (100) for continuous casting, having a flower patterned portion (B) with a flower pattern (103) of radial circular recesses at a portion of the nozzle for preventing molten steel from flowing unevenly and inclusions from attaching during the molten steel passes through the nozzle in continuous casting, including an enlarged inside diameter portion (C) having aninside diameter 1.1 1.5 times greater than an inside diameter of a circle drawn to pass through innermost tips of the flower pattern (103), wherein the enlarged inside diameter portion (C) begins froman end of the flower patterned portion (B) which is spaced a predetermined distance away from a top of the nozzle, thereby preventing the molten steel from flowing unevenly and inclusions from attaching to an inside of the nozzle, enhancing productivity of the continuous casting and stabilizing a surface of the molten steel in a mold to improve a quality of steel.

Description

technical field [0001] The present invention relates to a submerged nozzle for continuous casting, and more particularly to a submerged nozzle for continuous casting, wherein a section of a part of the nozzle is formed to have a pattern in order to prevent molten steel passing through the submerged nozzle from unevenly flow and prevents the contents from adhering to the submerged nozzle. Background technique [0002] Generally, in continuous casting, molten steel is continuously poured from a ladle to a mold through a hopper, and then the molten steel is solidified to form a casting. [0003] figure 1 Schematically shows continuous casting from hopper to mold in the prior art, wherein in continuous casting from hopper to mold, molten steel is supplied from ladle 1 to hopper 2, the flow rate of which is determined by the flow rate below hopper 2 The slide 3 is adjusted, and the molten steel is cast into the mold 7 through the submerged nozzle 6 . [0004] see figure 2 , ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/50B22D11/10
CPCB22D41/50H01R13/6272H01R13/73H02G3/32
Inventor 李相岩洪允基宣钟敏郑焕撤
Owner CHOSUN REFRACTORIES CO LTD
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