Aluminum silicon carbide carbon brick for torpedo tank and preparation method thereof

A technology of aluminum silicon carbide carbon bricks and torpedo tanks, which is applied in the field of aluminum silicon carbide carbon bricks for torpedo tanks and its preparation, can solve the problems of low service life and achieve the goals of improving corrosion resistance, toughness and corrosion resistance Effect

Inactive Publication Date: 2012-07-25
北京首钢耐材炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcoming of the existing aluminum silicon carbide carbonaceous materials with low service life, the invention provides an aluminum silicon carbide carbon brick for torpedo tanks and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] First, crush the special-grade bauxite and then perform magnetic separation. The particle size of the special-grade bauxite is 3-5 mm; then, 325 mesh silicon carbide, less than 200 mesh andalusite, 325 mesh sub-white corundum, and ferrosilicon nitride Mix with metal aluminum powder until evenly mixed; then, mix super-grade bauxite, 1-3mm sub-white corundum, 197 graphite and thermosetting resole phenolic resin for 3-5 minutes, then add evenly mixed silicon carbide, andalusite, The mixture of 325-mesh sub-white corundum, nitride and metal aluminum powder is further mixed until it is uniformly mixed to form a slurry, wherein the content of each component is: 25% of super-grade alumina, 30% of 1-3mm sub-white corundum, Silicon carbide 10%, andalusite 5%, flake graphite 10%, 325 mesh sub-white corundum 10%, ferrosilicon nitride 4%, metal aluminum powder 3%, thermosetting resole phenolic resin 3%; finally, the mixed After the mud is formed, it is dried.

[0024] The aluminum...

Embodiment 2

[0026] Firstly, crush the special-grade bauxite and then perform magnetic separation. The particle size of the special-grade bauxite is 3-5mm; then, 0-0.5mm and 325 mesh silicon carbide, less than 200 mesh andalusite, 325 mesh sub-white corundum , ferrosilicon nitride and metal aluminum powder are mixed until they are evenly mixed; then, mix super-grade bauxite, 1-3mm sub-white corundum and thermoplastic resole phenolic resin for 3-5 minutes, then add 197 graphite, mix well The mixture of silicon carbide, andalusite, 325-mesh sub-white corundum, ferrosilicon nitride and metal aluminum powder is further mixed until it is uniformly mixed to form mud, wherein the content of each component is: super-grade alumina 28%, 1 ~3mm sub-white corundum 30%, silicon carbide 13%, andalusite 2%, flake graphite 10%, 325 mesh sub-white corundum 7%, ferrosilicon nitride 4%, metal aluminum powder 3%, thermoplastic resole phenolic resin 3%; finally, the uniformly mixed mud is molded and then dried...

Embodiment 3

[0029] Firstly, crush the special-grade bauxite and then perform magnetic separation. The particle size of the special-grade bauxite is 3-5mm; then, 0-0.5mm and 325 mesh silicon carbide, less than 200 mesh andalusite, 325 mesh sub-white corundum , ferrosilicon nitride and metal aluminum powder are mixed until they are evenly mixed; then, mix super-grade bauxite, 1-3mm sub-white corundum and thermosetting resole phenolic resin for 3-5 minutes, then add 196 graphite, mix well The mixture of silicon carbide, andalusite, 325-mesh sub-white corundum, ferrosilicon nitride and metal aluminum powder is further mixed until it is uniformly mixed to form mud, wherein the content of each component is: 30% of super-grade alumina, 1 ~3mm sub-white corundum 30%, silicon carbide 8%, andalusite 2%, flake graphite 12%, 325 mesh sub-white corundum 8%, ferrosilicon nitride 5%, metal aluminum powder 2%, thermosetting resole phenolic resin 3%; finally, the uniformly mixed mud is molded and then dri...

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PUM

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Abstract

The invention relates to an aluminum silicon carbide carbon brick for a torpedo tank and a preparation method thereof. The aluminum silicon carbide carbon brick comprises the raw materials by weight percent: 10-30% of special grade alumina, 15-35% of sub-white fused alumina being 1-3mm, 5-15% of silicon carbide, 2-10% of andalusite, 5-15% of crystalline flake graphite, 5-15% of 325-mesh sub-white fused alumina, 1-10% of nitride, 2-3% of metal aluminum powder and 3-5% of phenolic resin. The aluminum silicon carbide carbon brick is prepared by mixing the raw materials in the proportion, molding and drying. According to the invention, a corundum mullite phase is formed in the process of using the finished product and combined with nitride by adjusting the composition of the raw materials and adding nitride, so that the corrosion resistance, the scouring resistance and the high-temperature volume stability of the brick can be improved; compared with the common Al2O3-SiC-C (ASC) brick, the aluminum silicon carbide carbon brick improves the furnace age by about 15%.

Description

technical field [0001] The invention relates to an aluminum silicon carbide carbon brick and a preparation method thereof, in particular to an aluminum silicon carbide carbon brick for a torpedo tank and a preparation method thereof. Background technique [0002] As a major equipment for steelmaking, the torpedo-type molten iron tank is mainly made of aluminum silicon carbide carbonaceous material at present, and the ordinary aluminum silicon carbide carbonaceous material has a low service life. Contents of the invention [0003] Aiming at the shortcoming of the existing aluminum silicon carbide carbonaceous material with low service life, the invention provides an aluminum silicon carbide carbon brick for a torpedo tank and a preparation method thereof. [0004] The technical scheme of the present invention to solve the above-mentioned technical problems is as follows: a kind of aluminum silicon carbide carbon brick used for torpedo cans and its weight percentage include...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/66
Inventor 冯建设范先锋徐香汝王鹏宇李道忠杨可苏建东
Owner 北京首钢耐材炉料有限公司
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