Castable for large steel ladle

A ladle casting, large-scale technology, applied in the field of ladle castables, can solve the problems of a lot of solid waste, high labor intensity, and high resource consumption, and achieve the effects of improving durability, reducing labor intensity, and improving production efficiency

Inactive Publication Date: 2016-03-30
WUHAN RUXING TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing castables cannot be well used on refined steel ladles of more than 150 tons. The service life is low, cracking is prone to occur, and risks such as steel breakout occur. If the prefabricated block method is used, the labor intensity of masonry construction will be high and the safety hazard will be great. , and there is a lot of solid waste in use, which consumes a lot of resources

Method used

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  • Castable for large steel ladle
  • Castable for large steel ladle
  • Castable for large steel ladle

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Embodiment Construction

[0019] In order to better understand the purpose, features, and effects of the present invention, the technical solution of the present invention will be further described below in conjunction with specific examples.

[0020] At first, the technical parameter of each component in the embodiment is described as follows:

[0021] The fine carbide powder is more than one of aluminum carbide, silicon carbide, boron carbide and chromium carbide, and the particle diameter of the carbide fine powder is 2-5 microns.

[0022] The particle size of the brown corundum particles is 20-30 mm, the particle size of the plate-shaped corundum particles is 0-6 mm, the particle size of the plate-shaped corundum fine powder is 0.045 mm, and the particle size of the white corundum particles is diameter of 5-8 mm, the particle size of the corundum powder is 5 microns, and the particle size of the zirconium corundum particles is 0.1-0.5 mm

[0023] Al in the Al-Mg spinel particles, the Al-Mg spinel ...

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Abstract

The invention discloses castable for a large steel ladle. The castable comprises brown corundum granules, tabular corundum granules, fine tabular corundum powder, white corundum granules, corundum micropowder, zirconia corundum granules, alumina-magnesia spinel granules, fine alumina-magnesia spinel powder, alumina-magnesia spinel micropowder, Rho-Al2O3, active alpha-Al2O3 micropowder, silica powder, ultrafine fused magnesite powder and an additive. The castable for the large steel ladle can be well used on a refined steel ladle which weighs more than 150 tons, has good thermal shock stability, good safety and long service life, can be used for repeated pouring and also has excellent cost performance, the production efficiency is improved, the labor intensity of an operator is reduced, the cost of steel per ton is reduced, and discharge of solid waste is reduced.

Description

technical field [0001] The invention relates to the technical field of ladle castables, in particular to a large ladle castable. Background technique [0002] Ladle is an important container in the steelmaking process. In order to improve the life of the ladle and reduce the consumption of refractory materials, the refractory materials used in ladles have evolved from mainly shaped to unshaped refractories, and to fully unshaped. From the aspects of economy, labor saving, environment, etc., pouring construction has become an effective method for ladle construction, and various advantages of pouring construction have also promoted the development of castables for ladles. In the early 1980s, my country developed aluminum-magnesium castables combined with water glass, and then developed the second-generation aluminum-magnesium castables of anhydrous glass, but it still could not meet the requirements of molten steel temperature rise and continuous casting ladle lining. The deve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66C04B35/10
Inventor 刘星熊明继郭城成沈钢赵贵邓良奎
Owner WUHAN RUXING TECH CO LTD
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