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Impregnation-free sliding plate brick and preparation method thereof

A sliding brick and sintered corundum technology, which is applied in the field of impregnation-free sliding brick and its preparation, can solve environmental pollution and human health problems, achieve good erosion resistance and erosion resistance, reduce procedures, and speed up delivery time Effect

Inactive Publication Date: 2019-09-20
无锡市南方耐材有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the asphalt carbon volatilizes in the oil immersion, which is not good for environmental pollution and human health.

Method used

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  • Impregnation-free sliding plate brick and preparation method thereof
  • Impregnation-free sliding plate brick and preparation method thereof
  • Impregnation-free sliding plate brick and preparation method thereof

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preparation example Construction

[0031] The preparation method of impregnation-free sliding bricks comprises sintered corundum, zircon sand, silicon carbide, 85 bauxite, white corundum, ceramic plastic adhesive, active α-Al2O3 micropowder, graphite-197, aluminum flakes, metal silicon powder, Stir and mix high-temperature asphalt powder, phenolic resin, and resin reinforcing agent, then shape it and dry it naturally, then put it into a drying kiln and slowly heat it up for 40-60 hours. The tunnel kiln is evenly heated to 580°C ± 20°C, kept for 15-20 hours, and finally cooled at a constant speed for 16-25 hours.

[0032] Impregnation-free sliding brick and its preparation method, the drying kiln temperature is evenly raised to 80°C within 1 hour, and kept at 80°C for 12 hours, and then the temperature is evenly raised from 80°C to 190°C within 24 hours, and at 190°C Keep warm for 20 hours.

[0033] In the non-dipping sliding brick and its preparation method, the temperature is evenly raised to 580°C±20°C withi...

Embodiment 1

[0038] Raw material specifications are as follows:

[0039] Sintered corundum: Al 2 o 3 Content ≥ 95%, Fe2O3 content ≤ 1.8%, SiO2 content < 1.2%,

[0040] Zircon sand: ZrO2 content ≥ 65%, Fe2O3 content ≤ 0.2%, SiO2 content ≤ 33%,

[0041] Silicon carbide: SiC content ≥ 97%, Fe2O3 content ≤ 0.55%, F.C content ≤ 0.55%

[0042] 85 bauxite: Al 2 o 3 Content ≥ 85%, Fe2O3 content < 1%, TiO2 content < 4.0%;

[0043] White corundum: Al 2 o 3 Content ≥ 99%, Fe2O3 content ≤ 0.2%;

[0044] Ceramic plastic adhesive: MgO content ≥ 45%, SiO2 content ≥ 40%; Fe2O3 content ≤ 10%;

[0045] Graphite: C content ≥ 97%

[0046] Active α-Al2O3 powder: Al 2 o 3 Content ≥ 72%, Fe2O3 ≤ content 0.3%;

[0047] Aluminum sheet: active aluminum Al≥97%;

[0048] Metal silicon powder: Si content ≥ 97%, Fe2O3 content ≤ 1.0%;

[0049] High-temperature asphalt powder: softening point 95-120°C, ash content 0.1-0.5%, volatile content 55-75%;

[0050] Phenolic resin: carbon residue 45±4%, solid cont...

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Abstract

The invention discloses an impregnation-free sliding plate brick which comprises, in weight percent, 36%-38% of sintered corundum, 6%-8% of zircon sand, 4%-6% of silicon carbide, 10%-13% of 85 alumina, 17%-21% of white corundum, 4%-6% of ceramic plastic adhesives, 2%-3% of graphite, 5%-7% of active alpha-Al2O3, 2%-4% of aluminum sheets, 1%-3% of silicon metal powder and 1%-2% of high-temperature asphalt powder. The total weight percent of all components in the formula is 100%. 4-5% of phenolic resin and 0.4-0.5% of resin reinforcing agents are added. The impregnation-free sliding plate brick is short in production cycle, environmentally friendly in production and use and good in erosion resistance and scouring resistance and saves a large amount of energy.

Description

technical field [0001] The invention relates to the field of inorganic non-metallic refractory materials based on alumina, magnesia and carbon, and more specifically relates to an impregnation-free sliding brick and a preparation method thereof. Background technique [0002] The sliding brick flow control technology was first applied for a patent by the American Lewis in 1884, but it was not practical due to the limitations of mechanical technology and refractory technology at that time. It was not until 1964 that the Benteler steelworks in West Germany successfully tried it for the first time. , and then gradually matured and widely used. The early sliding nozzle flow control technology was only applied to ladles, and was extended to tundishes in the 1970s, and then extended to the slag-stopping and tapping systems of converters and electric furnaces. Sliding nozzle functional refractory material is an important part of sliding nozzle flow control technology. In view of the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/106
CPCC04B35/106C04B2235/3826C04B2235/402C04B2235/425C04B2235/428C04B2235/5427C04B2235/5436C04B2235/77C04B2235/96C04B2235/9615
Inventor 杭文明王远林
Owner 无锡市南方耐材有限公司
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