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Immersion nozzle for continuous casting

An immersion and nozzle technology, applied in casting equipment, casting melt containers, manufacturing tools, etc.

Inactive Publication Date: 2013-04-03
SHINAGAWA REFRACTORIES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since air enters from this junction, it oxidizes the molten metal, leading to quality deterioration, and metal penetration may occur at the junction, and in severe cases, it may even become inoperable.

Method used

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  • Immersion nozzle for continuous casting
  • Immersion nozzle for continuous casting
  • Immersion nozzle for continuous casting

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Embodiment

[0042] Hereinafter, preferred embodiments of the submerged nozzle for continuous casting according to the present invention will be described with reference to the accompanying drawings.

[0043] In addition, the same or equivalent parts as those in the conventional embodiments are described using the same symbols.

[0044] figure 1 To illustrate the figure of the first embodiment of the present invention, in figure 1 The part denoted by the symbol 1 is a long cylindrical refractory, which is used to constitute the submerged nozzle 10 for continuous casting used in the slide valve, and the axial center position of the cylindrical refractory 1 is penetrated and formed There is molten steel injection hole 10a.

[0045] The outer surface 11 of the cylindrical refractory 1 is composed of an upper tapered portion 11a and a straight line portion 11b formed below the tapered portion 11a.

[0046] The metal member 12A provided on a part or the whole of the outer surface 11 is com...

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Abstract

Provided is an immersion nozzle for continuous casting, in which the neck part of a cylindrical refractory object can be prevented from being damaged due to a pressing force or a stress by forming a metal case provided for the cylindrical refractory in a double structure configured from an outer part and an inner part. The immersion nozzle for continuous casting comprises an inner metal case (12) provided onto a part or the entire of the outer surface of the cylindrical refractory object (1), a tapered metal part (12a) so formed on the inner metal case (12) as to correspond to the tapered part (11a) of the cylindrical refractory object (1), and an outer metal case (13) provided outside of the inner metal case (12). At least parts of the metal cases (12, 13) are joined to each other.

Description

technical field [0001] The present invention relates to a submerged nozzle for continuous casting, in particular to a new metal casing which is provided with a double structure inside and outside on the cylindrical refractory in order to prevent the neck of the cylindrical refractory from being damaged due to pressing force or stress. Improve. Background technique [0002] In the past, in the last metal smelting process, molten metal was poured from a container such as a tundish through a flow control device such as a sliding nozzle plate or a stopper rod into a mold for casting, and gradually solidified into a predetermined shape. Although not shown, for example, the sliding nozzle device is installed at the bottom of the tundish, and used in combination with an upper nozzle, two to three layers of slide plates, a lower nozzle, and a submerged nozzle. The molten metal is injected into the casting mold from the inside of the tundish through the upper nozzle, the slide plat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D11/10B22D41/50B22D41/56
CPCB22D41/56B22D41/50
Inventor 中村真荻野秀隆国井仁小形昌德松长隆行
Owner SHINAGAWA REFRACTORIES CO LTD
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