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High quality steel continuous casting protection casting device

A high-quality, continuous casting technology, applied in casting equipment, casting melt containers, metal processing equipment, etc., can solve the problems of uneven distribution of argon gas, low utilization rate of argon gas, poor argon sealing effect, etc., to achieve enhanced argon Sealing and sealing effect, improving the quality of molten steel, ensuring the effect of smooth progress

Active Publication Date: 2017-04-12
MAGANG (GROUP) HOLDING CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages are that the lower part of the conical cap is open, the distribution of argon gas is uneven, the effect of argon sealing is poor, the utilization rate of argon gas is low, and the cost increases

Method used

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  • High quality steel continuous casting protection casting device
  • High quality steel continuous casting protection casting device
  • High quality steel continuous casting protection casting device

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Embodiment Construction

[0018] The present invention will be further described in detail below in conjunction with the examples.

[0019] Depend on figure 1 It can be seen that the high-quality steel continuous casting protection casting device includes a ladle 9, a nozzle 5 and a shroud 1, the nozzle is placed under the tapping hole of the ladle, the nozzle is connected to the shroud, and an iron shell is arranged at the upper end of the shroud 2. An argon gas inlet 3 is provided on the side of the iron shell, and an elastic bellows 4 is arranged on the iron shell. The bellows surrounds the water outlet, and the upper end of the bellows is provided with a ring-shaped asbestos gasket 6, which leans against the bottom of the ladle and is opposite to the tapping hole. The contact part between the steel ladle and the bellows is sealed; the conical asbestos sealing ring 7 is set at the connecting part of the water inlet and the long nozzle to seal it. Argon airtight chamber 8. It is fully sealed with a...

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Abstract

The invention relates to a continuous casting protection casting device of high-quality steel, which belongs to molten steel casting equipment, and particularly relates to a continuous casting protection casting device for the high-quality steel. The continuous casting protection casting device is characterized in that an elastic corrugated pipe is arranged on an iron casing, a water outlet is surrounded by the corrugated pipe, and an annular asbestos sealing gasket is arranged on the upper end of the corrugated pipe, is abutted below a steel ladle and is opposite to a steel outlet; a conical asbestos sealing ring is arranged in the contact position of the water outlet and a long water opening, and the long water opening, the elastic corrugated pipe, the asbestos sealing gasket, the water outlet and the asbestos sealing ring form an elastic argon gas sealing chamber. The continuous casting protection casting device has the advantages that the elastic argon gas sealing chamber which is provided with an argon gas inlet and is formed by the elastic corrugated pipe, the asbestos sealing gasket and the asbestos sealing ring is arranged between the water outlet and the long water opening, so that molten steel is effectively prevented from being contacted with air, the argon sealing effect is enhanced, secondary oxidation of the molten steel is avoided, smooth continuous casting production is guaranteed, inclusions in steel are reduced, the quality of the molten steel is improved and improved, and the requirement of high purity of the high-quality steel is satisfied.

Description

technical field [0001] The invention belongs to molten steel casting equipment, in particular to a protective casting device for continuous casting of high-quality steel. Background technique [0002] With the continuous development of high-quality steel, the requirements for the purity of steel are getting higher and higher. After the molten steel, especially the high-quality aluminum-containing steel, has been refined, the content of inclusions in the molten steel is very low, so the secondary process of molten steel in the continuous casting process Oxidation will become one of the important factors affecting the purity of steel. During casting, due to the structural characteristics of the shroud and the bowl of the shroud, there is a certain gap between the bowl of the shroud and the end of the shroud. During the casting process, under the action of high-speed steel flow, there will be relatively large gaps in this area. Large negative pressure, it is easy to inhale air...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B22D41/58
Inventor 金友林王民章汪国才龚志翔杜松林
Owner MAGANG (GROUP) HOLDING CO LTD
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