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Sintered non-oil-impregnated chrome-magnesium-aluminum carbonaceous sliding brick and its preparation method

A sliding brick and chrome-magnesium technology, which is applied in the field of firing non-oil-impregnated chromium-magnesium-aluminum carbon-free sliding bricks and its preparation, can solve the problems of environmental pollution and human health.

Active Publication Date: 2021-03-09
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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  • Sintered non-oil-impregnated chrome-magnesium-aluminum carbonaceous sliding brick and its preparation method
  • Sintered non-oil-impregnated chrome-magnesium-aluminum carbonaceous sliding brick and its preparation method
  • Sintered non-oil-impregnated chrome-magnesium-aluminum carbonaceous sliding brick and its preparation method

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Embodiment Construction

[0030] Raw material specifications are as follows:

[0031] Brown fused alumina: Al 2 o 3 Content ≥ 95%, Fe2O3 content ≤ 1.8%, SiO2 content < 1.2%,

[0032] 85 bauxite: Al 2 o 3 Content ≥ 85%, Fe2O3 content < 1%, TiO2 content < 4.0%;

[0033] Chrome corundum: Al 2 o 3 Content ≥ 85%, Cr2O3 content ≥ 13%;

[0034] Fused silica: SiO2 content ≥ 98%;

[0035] Tabular alumina: Al 2 o 3 Content ≥ 99%, Fe2O3 content ≤ 0.2%;

[0036] Forsterite: MgO content ≥ 45%, SiO2 content ≥ 40%; Fe2O3 content ≤ 10%;

[0037] Sintered mullite: Al 2 o 3 Content ≥ 99%, Fe2O3 content ≤ 0.6%;

[0038] Active α-Al2O3 powder: Al 2 o 3 Content ≥ 72%, Fe2O3 ≤ content 0.3%;

[0039] Aluminum sheet: active aluminum Al ≥ 97%; the metal silicon powder: Si content ≥ 97%, Fe2O3 content ≤ 1.0%;

[0040] High temperature burning powder: Al 2 o 3 Content≥70%, SiO2 content 25≤%;

[0041] Thermoplastic resin: carbon residue 45±4%, solid content 75-80%, viscosity 15000-18000mpa.

[0042] The basic ...

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Abstract

The invention discloses a sintered non-oil-immersed magnesia chrome aluminum carbon-free sliding plate brick. The brick is prepared from the following components in percentage by weight: 37-38% of brown aluminum oxide, 3-5% of 85 alumina, 14-18% of pink fused alumina, 4-7% of fused silica, 8-11% of plate-shaped corundum, 5-8% of forsterite, 5-6% of sintered mullite, 5-7% of active alpha-Al2O3 micro powder, 2-3% of aluminum sheet, 2-3% of metallic silicon powder and 4-6% of high temperature burning promotion powder, wherein the sum of the weight of all the components is 100%; in addition, 4-5%of thermoplastic resin and 0.4-0.5% of hexamethylenetetramine (urotropin) are added,. The purpose of the invention is to provide the sintered non-oil-immersed magnesia chrome aluminum carbon-free sliding plate brick which has the advantages of short production period, capability of saving a great amount of energy (such as water, electricity and gas), reduced procedures, no pollution to the environment, and good anti-erosion performance and anti-scouring performance, and a preparation method thereof.

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 fired non-oil-impregnated chromium-magnesium-aluminum carbon-free sliding bricks and a preparation method thereof. Background technique [0002] With the development of new smelting technology and the increase of smelting steel types, the requirements for slide plate materials for continuous casting are also continuously increasing. Therefore, there is an urgent need to develop new skateboards or further improve the quality of the original skateboards. [0003] Due to the development and technological progress of countries in the world in defense, transportation, petroleum and automobile industries, the requirements for steel performance are becoming increasingly stringent. Practice has proved that the higher the purity of steel, the higher its performance and the longer its service life. When the i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/105C04B35/632C04B35/64
CPCC04B35/105C04B35/632C04B35/64C04B2235/3418C04B2235/3445C04B2235/3463C04B2235/402C04B2235/404C04B2235/428C04B2235/5427C04B2235/9676
Inventor 杭文明王远林
Owner 无锡市南方耐材有限公司
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