A special corundum self-flowing castable for stainless steel ladle and its construction method

A construction method and castable technology, applied in the field of refractory materials, can solve problems such as high temperature, easy penetration, and inability to meet the stainless steel production process, and achieve the effects of improved high temperature resistance, good dispersion, and good fluidity

Inactive Publication Date: 2016-01-13
HUZHOU AONENG CHARGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Ordinary ordinary molten steel has a low temperature (1560°C) and thick molten steel. Ordinary corundum self-flowing materials can solve this process, but the temperature of stainless steel is as high as about 1630°C, and the molten steel is thin, high temperature, and easy to penetrate. Traditional corundum self-flowing materials can no longer meet the requirements. Stainless steel production process requirements

Method used

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  • A special corundum self-flowing castable for stainless steel ladle and its construction method
  • A special corundum self-flowing castable for stainless steel ladle and its construction method
  • A special corundum self-flowing castable for stainless steel ladle and its construction method

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Embodiment 1

[0024] The present invention proposes a special corundum self-flowing castable for stainless steel ladles, which includes the following components by weight percentage:

[0025]

[0026] It is also necessary to add 0.12% dispersible alumina and 5% water of the above-mentioned self-flowing castable during construction;

[0027] During construction, it is necessary to support the mold, inject the self-flowing castable mixed with water and dispersant into the mold, the material can flow through any surface and fill any space, and quickly bond with the original remaining materials without vibration and noise , while reducing the labor intensity of workers.

Embodiment 2

[0029] The present invention proposes a special corundum self-flowing castable for stainless steel ladles, which includes the following components by weight percentage:

[0030]

[0031] During construction, it is also necessary to add 0.1% dispersible alumina and 5.5% water of the above-mentioned self-flowing castable;

[0032] During construction, it is necessary to support the mold, inject the self-flowing castable mixed with water and dispersant into the mold, the material can flow through any surface and fill any space, and quickly bond with the original remaining materials without vibration and noise , while reducing the labor intensity of workers.

Embodiment 3

[0034] The present invention proposes a special corundum self-flowing castable for stainless steel ladles, which includes the following components by weight percentage:

[0035]

[0036] It is also necessary to add 0.05% dispersible alumina and 6% water of the above-mentioned self-flowing castable during construction;

[0037] During construction, it is necessary to support the mold, inject the self-flowing castable mixed with water and dispersant into the mold, the material can flow through any surface and fill any space, and quickly bond with the original remaining materials without vibration and noise , while reducing the labor intensity of workers.

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Abstract

The invention discloses a special corundum self-flowing casting material for stainless steel ladle and a construction method of the special corundum self-flowing casting material. The special corundum self-flowing casting material comprises the following components in percentage by weight: brown corundum, fine brown corundum powder, recycled fine corundum powder, recycled fine air brick powder and pure calcium aluminate cement, and a dispersing agent and water further need to be added in construction. In construction, a mold needs to be constructed, the water, the dispersing agent and the self-flowing casting material which are well stirred are poured into the mold, and the material can flow through any surface, can be filled in any space and can be rapidly bonded with residual materials. The special corundum self-flowing casting material for stainless steel ladle, which is disclosed by the invention, is good in high-temperature resistance and can meet the high-temperature condition of the stainless steel ladle.

Description

technical field [0001] The invention relates to the technical field of refractory materials, in particular to a special corundum self-flow pouring for stainless steel ladles and a construction method thereof. Background technique [0002] Self-flowing castables refer to low-cement, ultra-low-cement or cement refractory castables characterized by their fluidity after mixing. Refractory castables with this fluidity can flow and degas without external force, and there is no obvious segregation . Self-flowing castables have attracted attention in recent years due to their good flow characteristics. [0003] Corundum castables are suitable for caulking around the bottom of the ladle and around the seat bricks, and the top of the electric furnace. It is used for repairing the damaged parts of refractory bricks or pouring due to different degrees of impact during feeding or discharging of high-temperature furnaces. Especially non-stop repair of furnace wall, furnace roof, furnac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
Inventor 钱培红
Owner HUZHOU AONENG CHARGING
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