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Refractory castable

A refractory castable and zircon mullite technology, applied in the field of refractory materials, can solve the problems of inability to effectively resist steel slag erosion, low density, affecting product service life, etc., and achieve high slag erosion resistance, high density and flexural strength. , the effect of improving the service life

Inactive Publication Date: 2019-04-30
CHANGSHA XINGUANG SPECIAL CERAMIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, although many types of refractory castables have also appeared in the prior art, due to the limitations of the formulation design of the prior art refractory castables, the existing refractory castables often have a relatively low density. When refractory castables are used in ladles and other similar products, they often cannot effectively resist the erosion of steel slag, which greatly affects the service life of the product

Method used

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Embodiment Construction

[0013] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present application. rather than all examples. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of this application.

[0014] The invention provides a new type of refractory castable formula. The refractory castable product produced by the formula has high density and good fluidity. The refractory castable formula can be adapted to castables, gunning materials, Amorphous refractory materials such as self-flowing materials can also be adapted to shaped refractory materials such as refractory prefabricated parts.

[0015] The formula o...

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PUM

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Abstract

The invention discloses a refractory castable which comprises the following components in parts by weight: 16-18 parts of zirconium mullite with the particle size of 3.0-5.0 mm, 11 parts to 12 parts of zirconium mullite with the particle size of 1.5 mm to 3.0 mm, 12-14 parts of zirconium mullite with the particle size of 0.5-1.5 mm, 19 parts to 20 parts of zirconium mullite with the particle sizeof 0.1 mm to 0.5 mm, 19 to 21 parts of zirconium mullite with the particle size of 0 mm to 0.1 mm, and 18 to 20 parts of a binding agent. The refractory castable provided by the invention is specifically assembled, the product can reach extremely high density and bending strength after being baked at 110 DEG C, the slag erosion resistance of the refractory castable is much higher than that of conventional castable products, and the service life of a steel ladle can be prolonged by more than 20%.

Description

technical field [0001] The invention relates to the field of refractory materials, and more specifically relates to a refractory castable. Background technique [0002] Ladles are often used in steelmaking plants or foundries, and are used for receiving molten steel and performing pouring operations before open hearth furnaces, electric furnaces, and converters. During the use of the ladle, because the temperature of the molten steel inside it often reaches a high temperature of more than 1000 degrees Celsius, the inner lining of the ladle is often provided with a special refractory layer. [0003] With the development of modern material science, refractory castables have gradually begun to be used in the production of modern ladle lining refractory layers. Refractory castable is a granular and powdery material made by adding a certain amount of bonding agent to refractory material. Refractory castable has high fluidity and is suitable for unshaped refractories formed by po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/185C04B35/66
CPCC04B35/185C04B35/66C04B2235/3206C04B2235/3217C04B2235/3244C04B2235/9676
Inventor 鲁新辉
Owner CHANGSHA XINGUANG SPECIAL CERAMIC CO LTD