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Cold state integral repairing material with high adhesiveness for wall of steel ladle

A technology of adhesion and repairing material, applied in the field of refractory unshaped refractory products, can solve the problems of easy falling off, easy to slide down, poor adhesion performance, etc., and achieve obvious economic benefits, increase safety, and good adhesion performance.

Active Publication Date: 2013-07-24
瑞泰马钢新材料科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the overall cold-state repair materials for ladle walls used in China generally have poor adhesion performance. Large impact, high adhesion repair material has not been reported in the literature

Method used

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  • Cold state integral repairing material with high adhesiveness for wall of steel ladle

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specific Embodiment approach

[0029] (1) Crushing and crushing of raw materials: Procure raw materials according to the technical requirements of the raw materials used in the production of the present invention. Among them, the main raw materials, super-high-quality bauxite and fused magnesia, require good sintering, which is specifically reflected in the body density and water absorption. . The high-quality bauxite is processed into 5~3mm and 3~1mm pellets by crushing and screening equipment and sent to the silo, and the fused magnesia is processed by crushing and screening equipment into 180 mesh (0.080-0mm) fine powder and sent to the feed bin. Silo, corundum granules and fines, α-Al 2 o 3 Micropowder, silica fume and admixtures are purchased in the market according to requirements.

[0030] (2) Weighing: according to the production process of the present invention, the proportion of ingredients is 35-45% for super-quality bauxite particles, 35-45% for corundum particles and fine powder, 5-15% for fu...

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Abstract

The invention discloses a cold state integral repairing material with high adhesiveness for a wall of a steel ladle. The material comprises the components in percentage by weight as follows: 35-45% of extra-superior alumina particles, 35-45% of corundum particles and fine powder, 5-15% of fused magnesite fine powder, 2-12% of alpha-Al2O3 micro-powder, 1-5% of silica fume and 0.1-0.5% of additive. The additive is an efficient water reducer. The extra-superior alumina particles are processed by extra-superior alumina which is processed to 5-3mm and 3-1mm grades by a crushing and screening device. The corundum particles consist of 3-1mm and 1-0mm corundum materials. The granularity of the corundum fine powder is 0.088-0mm. The proportional region of the corundum particles to corundum fine powder is 1: (1.8-2.2). Field actual application of the cold state integral repairing material with high adhesiveness for the wall of the steel ladle shows that the material is good in adhesiveness due to less bounce, nearly free from falling after being roasted, remarkable in effect of prolonging the service life of the steel ladle liner and remarkable in economic benefit. In addition, the material is nearly free from falling after being roasted, so that the safety of the steel lade during use is greatly improved.

Description

technical field [0001] The invention belongs to the field of unshaped refractory products of refractory materials, and is mainly suitable for integral repairing of the ladle wall in cold state to improve the overall service life of the ladle lining and the online turnover rate, and is widely used in molten liquid running ladle bottom, ladle wall and various Repair of melting parts such as working lining of kiln. Background technique [0002] During the use of the ladle, the conditions of different parts of the ladle wall are different, and local melting loss is inevitable. In order to avoid the replacement of the entire working lining due to local damage to the ladle wall, achieve a balanced lining life, reduce the consumption of ladle lining materials and improve the reliability of the overall safe operation of the ladle, it is necessary to develop a ladle wall repair material. [0003] At present, the ladle wall repair material is an amorphous refractory material with hig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 刁德胜杨开保郁书中
Owner 瑞泰马钢新材料科技有限公司
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