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A kind of anti-alumina silicon carbide carbon brick and preparation method thereof

A silicon carbide carbon brick and anti-alumina technology, which is applied in the field of carbon bricks, can solve problems such as the compactness and insufficient oxidation resistance of aluminum silicon carbide carbon bricks, and achieve the effects of improving oxidation resistance, preventing oxidation, and improving density

Active Publication Date: 2021-12-31
北京利尔高温材料股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The object of the present invention is to provide an anti-alumina silicon carbide carbon brick and its preparation method, by improving and increasing the raw material composition and its ratio to solve the existing problems of the existing aluminum silicon carbide carbon brick in the prior art such as compactness, oxidation resistance Insufficient performance and other issues

Method used

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  • A kind of anti-alumina silicon carbide carbon brick and preparation method thereof
  • A kind of anti-alumina silicon carbide carbon brick and preparation method thereof
  • A kind of anti-alumina silicon carbide carbon brick and preparation method thereof

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Embodiment 1

[0030] The invention provides an aluminum silicon carbide carbon brick with excellent oxidation resistance. The raw material components and specific weight parts are as follows: 17 parts of high-alumina bauxite with a particle size of 5-3 mm; 20 parts of high-alumina bauxite with a particle size of 3-1 mm 10 parts of high alumina bauxite with a particle size of 1-0mm; 5 parts of andalusite with a particle size of 5-3mm; 10 parts of andalusite with a particle size of 3-1mm; 5 parts of andalusite with a particle size of 1-0mm; 7 parts of 100-1200 purpose graphite; 1 part of carbon black with a particle size of 200-500nm; 3 parts of binder liquid resin; 7.5 parts of 200 purpose silicon carbide fine powder; It consists of 325-mesh barite, 1 part 325-mesh silicon powder, and 1 part 325-mesh boron carbide fine powder.

[0031] The preparation method steps are as follows:

[0032] (1) Weigh barite, silicon powder, and boron carbide fine powder in proportion, mix them, vibrate and gr...

Embodiment 2

[0049] The invention provides an aluminum silicon carbide carbon brick with excellent oxidation resistance. The raw material components and specific weight parts are as follows: 17 parts of high-alumina bauxite with a particle size of 5-3 mm; 20 parts of high-alumina bauxite with a particle size of 3-1 mm 10 parts of high alumina bauxite with a particle size of 1-0mm; 5 parts of andalusite with a particle size of 5-3mm; 10 parts of andalusite with a particle size of 3-1mm; 5 parts of andalusite with a particle size of 1-0mm; 7 parts of 100-1200 purpose graphite; 2 parts of carbon black with a particle size of 200-500nm; 3 parts of binder liquid resin; 7.5 parts of 200 purpose silicon carbide fine powder; It consists of 325 mesh barite fine powder, 1 part 325 mesh silicon powder, and 1 part 325 mesh boron carbide fine powder.

[0050] The preparation method steps are as follows:

[0051] (1) Weigh barite, silicon powder, and boron carbide fine powder in proportion, mix them, v...

Embodiment 3

[0056] The invention provides an aluminum silicon carbide carbon brick with excellent oxidation resistance. The raw material components and specific weight parts are as follows: 17 parts of high-alumina bauxite with a particle size of 5-3 mm; 20 parts of high-alumina bauxite with a particle size of 3-1 mm 10 parts of high alumina bauxite with a particle size of 1-0mm; 5 parts of andalusite with a particle size of 5-3mm; 10 parts of andalusite with a particle size of 3-1mm; 5 parts of andalusite with a particle size of 1-0mm; 7 parts of 100-1200 purpose graphite; 1 part of carbon black with a particle size of 200-500nm; 3 parts of binder liquid resin; 7.5 parts of 200 purpose silicon carbide fine powder; It consists of 325-mesh barite, 1 part 325-mesh silicon powder, and 1 part 325-mesh boron carbide fine powder.

[0057] The preparation method steps are as follows:

[0058] (1) Weigh barite, silicon powder, and boron carbide fine powder in proportion, mix them, vibrate and gr...

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Abstract

The present invention relates to the technical field of carbon bricks, in particular to an anti-oxidation silicon carbide carbon brick for ladles; calculated in parts by mass, it comprises: 45-55 parts of high alumina bauxite, 10-20 parts of andalusite, 9-15 parts of white corundum fine powder, 7-10 parts of graphite, 0.5-2 parts of carbon black, 2.5-3.5 parts of binder, 7-13 parts of silicon carbide fine powder, 4-8 parts of co-grinding powder; co-grinding powder includes Barite, silicon powder, boron carbide; the invention also discloses a preparation method of an anti-alumina silicon carbide carbon brick, the steps of which include: weighing in proportion, high-speed constant temperature kneading, dry mixing, mixing, and putting into a mold Pressed into bricks and put into tunnel kiln for heat treatment to obtain aluminum silicon carbide carbon bricks. By optimizing the material ratio and improving the process, the iron-clad bricks in the prior art are easy to be damaged, poor in compactness, and poor in oxidation resistance. In turn, the compactness of the material can be improved, the porosity of the material can be reduced, and the fire resistance and oxidation resistance can be improved.

Description

technical field [0001] The invention relates to the technical field of carbon bricks, in particular to an anti-alumina silicon carbide carbon brick and a preparation method thereof. Background technique [0002] Hot metal ladles are widely used in large and medium-sized iron and steel enterprises as turnover equipment for connecting ironmaking and steelmaking for transportation of molten iron and pretreatment of molten iron. With the rapid development of the iron and steel industry, some steel mills have adopted torpedo-type mixed iron cars, but most steel mills still use ladles to carry molten iron, and they are developing in the direction of large-scale. Structural adjustment and quality improvement, molten iron ladle has developed from the original single transport equipment to the direction of molten iron pretreatment. [0003] Iron-clad bricks are carbon-containing refractory materials. The oxidation speed of non-oxide components in raw materials determines the oxidati...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/103C04B35/634
CPCC04B35/103C04B35/634C04B2235/3463C04B2235/425C04B2235/424C04B2235/3826C04B2235/3215C04B2235/3418C04B2235/3821C04B2235/48C04B2235/5427C04B2235/428C04B2235/9676
Inventor 刘丽王志星赵伟邓伟颜浩任林王伟伟刘靖轩王团收
Owner 北京利尔高温材料股份有限公司
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