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A kind of homogenized material toughened aluminum carbon drain brick and its production method

A homogenized material and aluminum-carbon technology, applied in the field of aluminum-carbon drain bricks, can solve problems such as cracks in drain bricks, affect service life, increase material consumption, etc., increase high-temperature volume stability, and improve thermal shock resistance property, the effect of suppressing crack phenomenon

Active Publication Date: 2020-09-29
HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new aluminum-carbon drain brick toughened by homogenized material and its technical problem of cracks easily appearing when the drain brick is used for many times, which affects the service life and increases material consumption. The production method can improve the thermal shock resistance of the drain brick and effectively solve the problem of cracks in the drain brick after repeated use

Method used

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  • A kind of homogenized material toughened aluminum carbon drain brick and its production method
  • A kind of homogenized material toughened aluminum carbon drain brick and its production method

Examples

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Effect test

Embodiment 1

[0027] A homogenizing material toughened aluminum-carbon sewer brick, comprising the following weight percentages of raw materials: 20% 88 bauxite homogenizing material, 48% tabular corundum, 8% fused white corundum, 2% -298 flake graphite, 7% aluminum-silicon alloy powder, 9% active a-alumina powder, 6% Guangxi white clay, the total amount of the above raw materials is 100%; plus 3.5% phenolic resin binder of the total weight of the above raw materials.

[0028] The 88 bauxite homogenizing material includes two particle sizes, 1mm≤particle size 1<3mm and 3mm≤particle size 2≤5mm, and the weight ratio of 88 bauxite homogenizing material of particle size 1 and particle size 2. It is 1:1; the tabular corundum includes two particle sizes, 0mm

Embodiment 2

[0033] A homogenizing material toughened aluminum-carbon sewer brick, comprising the following weight percentages of raw materials: 25% 88 bauxite homogenizing material, 45% tabular corundum, 12% fused white corundum, 1% -298 flake graphite, 6% aluminum-silicon alloy powder, 6% active a-alumina powder, 5% Guangxi white clay, the total amount of the above raw materials is 100%; plus 3.5% of the total weight of the above raw materials phenolic resin binder.

[0034] The 88 bauxite homogenizing material includes two particle sizes, 1mm≤particle size 1<3mm and 3mm≤particle size 2≤5mm, and the weight ratio of 88 bauxite homogenizing material of particle size 1 and particle size 2. It is 1.5:1; the slab corundum includes two particle sizes, 0mm

Embodiment 3

[0037] A homogenizing material toughened aluminum-carbon sewer brick, comprising the following weight percentages of raw materials: 30% 88 bauxite homogenizing material, 38% tabular corundum, 10% fused white corundum, 2% -298 flake graphite, 8% aluminum silicon alloy powder, 8% active a-alumina powder, 4% Guangxi white clay, the total amount of the above raw materials is 100%; plus 3.5% of the total weight of the above raw materials phenolic resin binder.

[0038] The 88 bauxite homogenizing material includes two particle sizes, 1mm≤particle size 1<3mm and 3mm≤particle size 2≤5mm, and the weight ratio of 88 bauxite homogenizing material of particle size 1 and particle size 2. It is 2:1; the tabular corundum includes two particle sizes, 0mm

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Abstract

The invention discloses an alumina-carbon drain hole brick toughened with a homogenizing material and a production method thereof. The alumina-carbon drain hole brick is prepared from, by weight, 20-30% of 88 bauxite homogenizing material, 38-48% of tabular corundum, 8-12% of electrically fused white corundum, 1-2% of 298 flake graphite, 6-8% of aluminum silicon alloy powder, 6-9% of active a-aluminum oxide powder and 4-6% of Guangxi white mud, and the total quantity of the above raw materials is 100%; phenolic resin binder accounting for 3-4% of the total weight of the above raw materials is extra added. According to the alumina-carbon drain hole brick toughened with the homogenizing material and the production method, part of the tabular corundum is replaced with the 88 bauxite homogenizing material, so that the thermal shock stability of the product is improved, the phenomenon that cracks of the drain hole brick occur is prevented and inhibited, meanwhile the cost is reduced, and the utilization rate of resources is improved. The drain hole brick has the same advantages of high strength, high corrosion resistance and the like as a normal drain hole brick, particularly has good thermal shock stability, occurrence of cracks of the drain hole brick after repeated use can be reduced, and the service life is prolonged.

Description

Technical field [0001] The invention relates to an aluminum-carbon sewer brick, in particular to an aluminum-carbon sewer brick toughened by a homogenizing material and a production method thereof. Background technique [0002] The spout brick works intermittently during use, and it is prone to cracks due to thermal shock. When the cracks are used for multiple times, there will be steel leakage accidents and safety hazards; sometimes the slide plate is replaced in advance due to the spout bricks, resulting in material waste , Increase steelmaking costs. [0003] At present, the drain bricks that have been used many times are mainly made of aluminum-carbon. Its main raw materials are corundum and graphite. Corundum has good corrosion resistance, but because of its large expansion coefficient, it affects the thermal shock resistance of the drain. Therefore, in order to improve the thermal shock resistance of the nozzle bricks, it is necessary to use low-expansion and high-toughness ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66
CPCC04B35/66C04B2235/3217C04B2235/349C04B2235/402C04B2235/425C04B2235/428C04B2235/9676
Inventor 梁保青李爱梅徐跃庆李宏宇王全喜张志峰徐光雷
Owner HENAN RONGJIN HIGH TEMPERATRUE MATERIALS CO LTD
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