Novel low-carbon aluminum-magnesium spinel carbon brick with high thermal shock resistance and preparation method of novel low-carbon aluminum-magnesium spinel carbon brick

A technology of magnesium spinel and thermal shock resistance, applied in the field of refractory, can solve the problems of high raw material cost and environmental pollution, achieve the effect of improving thermal shock stability, improving impact resistance and erosion resistance, and reducing raw material cost

Active Publication Date: 2021-09-03
北京利尔高温材料股份有限公司
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a new type of high thermal shock resistance low carbon aluminum magnesium spinel carbon brick, through the design of high thermal shock resistance low carbon aluminum magnesium spinel carbon brick to solve the problems existing in the prior art Tabular alumina, white corundum, fused magnesia, flake graphite, s

Method used

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  • Novel low-carbon aluminum-magnesium spinel carbon brick with high thermal shock resistance and preparation method of novel low-carbon aluminum-magnesium spinel carbon brick

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0052] Embodiment one

[0053] Preparation of Sample 1:

[0054] In parts by weight, it includes 15 parts of corundum spinel carbon regenerated material, 35 parts of corundum particles, 20 parts of fused magnesia, 22 parts of corundum dust removal powder, 2.5 parts of activated α-alumina micropowder, spinel-aluminic acid 3 parts of calcium composite material, 0.5 parts of metal aluminum powder, 2 parts of nano-carbon black, phenolic resin as binder, and 2.7 parts of phenolic resin.

[0055] Among them, 5 parts of corundum spinel carbon recycled materials with a particle size of 3-5mm, 5 parts of corundum spinel carbon recycled materials with a particle size of 1-3mm, and corundum spinel carbon recycled materials with a particle size of 0-1mm 5 copies;

[0056] 15 parts of corundum particles with a particle size of 3-5 mm, 15 parts of corundum particles with a particle size of 1-3 mm, and 5 parts of corundum particles with a particle size of 0.074-1 mm;

[0057] 5 parts of f...

Example Embodiment

[0066] Embodiment two

[0067] Preparation of sample 2:

[0068] In parts by weight, it includes 27 parts of corundum spinel carbon regenerated material, 24 parts of corundum particles, 20 parts of fused magnesia, 21 parts of corundum dust removal powder, 3 parts of activated α-alumina micropowder, spinel-aluminic acid 2.5 parts of calcium composite material, 1 part of metal aluminum powder, 1.5 parts of nano-carbon black, phenolic resin as binder, and 2.8 parts of phenolic resin.

[0069] Among them, 10 parts of corundum spinel carbon recycled materials with a particle size of 3-5mm, 10 parts of corundum spinel carbon recycled materials with a particle size of 1-3mm, and corundum spinel carbon recycled materials with a particle size of 0-1mm 7 copies;

[0070] 10 parts of corundum particles with a particle size of 3-5 mm, 10 parts of corundum particles with a particle size of 1-3 mm, and 4 parts of corundum particles with a particle size of 0.074-1 mm;

[0071] 5 parts of ...

Example Embodiment

[0078] Embodiment three

[0079] Preparation of sample 3:

[0080] In parts by weight, it includes 40 parts of corundum spinel carbon regenerated material, 17.5 parts of corundum particles, 13.5 parts of fused magnesia, 21 parts of corundum dust removal powder, 3 parts of activated α-alumina micropowder, and spinel-aluminic acid 2.5 parts of calcium composite material, 1 part of metal aluminum powder, 1.5 parts of nano-carbon black, phenolic resin as binder, and 2.9 parts of phenolic resin.

[0081] Among them, 15 parts of corundum spinel carbon recycled materials with a particle size of 3-5mm, 15 parts of corundum spinel carbon recycled materials with a particle size of 1-3mm, and corundum spinel carbon recycled materials with a particle size of 0-1mm 10 copies;

[0082] 10 parts of corundum particles with a particle size of 3-5mm, 5 parts of corundum particles with a particle size of 1-3mm, and 2.5 parts of corundum particles with a particle size of 0.074-1mm;

[0083] 3....

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Abstract

The invention relates to a novel low-carbon aluminum-magnesium spinel carbon brick with high thermal shock resistance and a preparation method of the novel low-carbon aluminum-magnesium spinel carbon brick. The brick comprises 1-90 parts of a corundum spinel carbon reclaimed material, 1-50 parts of corundum particles, 1-40 parts of fused magnesite, 1-40 parts of corundum dedusting powder, 1-8 parts of active alpha-alumina micro powder, 1-10 parts of a spinel-calcium aluminate multiphase material, 0.1-3 parts of metal aluminum powder, 0.1-5 parts of nano carbon black and 1-8 parts of a binding agent. The invention aims to provide a novel high-thermal-shock-resistance low-carbon aluminum-magnesium spinel carbon brick, which solves the problem that in the prior art, materials such as tabular corundum, white corundum, fused magnesite, crystalline flake graphite, spinel micro powder, alumina micro powder and silicon carbide fine powder are used as raw materials; the steel ladle brick is obtained by high-temperature firing, great pollution is caused to the environment, and the raw material cost is high.

Description

technical field [0001] The invention relates to the field of refractory technology, in particular to a novel low-carbon aluminum-magnesium spinel carbon brick with high thermal shock resistance and a preparation method thereof. Background technique [0002] With the rapid development of steelmaking technology, with the increase in the proportion of low-carbon steel, ultra-low carbon steel and other steel types, the requirements for low-carbon and non-carbonized refractory materials for steelmaking are also getting higher and higher. In the steelmaking industry, the ladle is used as a container for water, and at the same time undertakes the refining process of molten steel and other processes, and the use conditions are harsh. In particular, the ladle bottom of large ladles is not only subject to repeated severe impacts of high-temperature molten steel, but also the stirring of the refining process and the erosion of molten slag. This requires that the ladle bottom refractory...

Claims

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Application Information

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IPC IPC(8): C04B35/103C04B35/634C04B35/622
CPCC04B35/103C04B35/63476C04B35/62204C04B35/622C04B2235/3206C04B2235/3222C04B2235/5427
Inventor 赵伟佟晓松颜浩刘靖轩刘丽任林张晗孙春辉
Owner 北京利尔高温材料股份有限公司
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