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Novel anti-cracking tundish water inlet and preparation method thereof

An anti-explosion and new technology, applied in the field of metallurgical refractory materials, can solve the problems of tundish nozzle burst and product loss, etc.

Inactive Publication Date: 2020-07-07
QINGDAO HUAYE SUPER REFRACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Among them, when the upper nozzle of the tundish is in the process of application, the temperature of the molten steel will be too high, which will cause the upper nozzle of the tundish to burst, resulting in further loss of products

Method used

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  • Novel anti-cracking tundish water inlet and preparation method thereof
  • Novel anti-cracking tundish water inlet and preparation method thereof
  • Novel anti-cracking tundish water inlet and preparation method thereof

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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0022] refer to Figure 1-3 , a novel anti-explosion tundish upper nozzle and a preparation method thereof, comprising an outer wall 1, the upper end of the outer wall 1 is fixedly connected with a bowl mouth 2, the bowl mouth 2 and the side walls of the outer wall 1 are provided with a first protective layer 3, the second A protective layer 3 includes a tantalum hafnium carbide coating 31 respectively arranged on the bowl mouth 2 and the side wall of the outer wall 1, wherein the tantalum hafnium carbide coating 31 is actually made of a tantalum hafnium carbide alloy, which actually refers to tetratantalum hafnium pentacarbide compound, It is the substance with the ...

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Abstract

The invention discloses a novel anti-cracking tundish water inlet and a preparation method thereof. The water inlet comprises an outer wall, wherein the upper end of the outer wall is fixedly connected with a bowl opening; a first protective layer is arranged on each of side walls of the bowl opening and the outer wall; a buffer mechanism is fixedly connected to the side wall of the first protective layer, and a second protective layer is arranged at one end, away from the first protective layer, of the buffer mechanism; a protective plate is fixedly connected to the lower end of the outer wall, and a sliding plate is fixedly connected to the lower end of the protective plate. By cooperative use of the first protective layer and the second protective layer, high-temperature resistance of aproduct can be enhanced, stability of the product can also be increased, cracking in the application process can be prevented, and the service life of the product can be prolonged; and by applicationof the buffer mechanism, protective performance of the product can be further enhanced, erosion of molten steel temperature on the outer wall can be reduced, the product can be further protected, andtemperature impact of molten steel on the second protective layer can also be buffered.

Description

technical field [0001] The invention relates to the technical field of metallurgical refractory materials, in particular to a novel blast-proof tundish upper nozzle and a preparation method thereof. Background technique [0002] The nozzle of the tundish is divided into two forms: blowing argon and not blowing argon. It is used in conjunction with a stopper rod. It is mainly used to adjust the flow of molten steel entering the crystallizer, and to prevent the nozzle from being blocked by blowing argon through the inner wall. It is characterized by good thermal shock performance, Strong anti-scouring performance. [0003] Among them, the following problems will occur when the upper nozzle of the tundish is used: [0004] When the upper nozzle of the tundish is in use, the temperature of the molten steel will be too high, which will cause the upper nozzle of the tundish to burst, resulting in further loss of products. [0005] Therefore, we propose a novel anti-explosion tun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B22D41/50
CPCB22D41/50B22D41/505
Inventor 邢连清
Owner QINGDAO HUAYE SUPER REFRACTORY
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