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Metal composite low-carbon magnesium-carbon composite material

A composite material and metal composite technology, applied in the field of refractory materials, can solve the problems of polluted molten steel, high carbon content, low service life, etc., and achieve the effect of improving high temperature strength

Inactive Publication Date: 2013-01-23
德清县力拓炉料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] In order to solve the above-mentioned technical problems such as high carbon content of ordinary magnesia-carbon bricks, pollution of molten steel, and low service life, the purpose of the present invention is to provide a metal composite low-carbon magnesia-carbon composite material, which improves the low-carbon magnesia-carbon brick Excellent thermal shock stability and high temperature strength

Method used

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  • Metal composite low-carbon magnesium-carbon composite material
  • Metal composite low-carbon magnesium-carbon composite material
  • Metal composite low-carbon magnesium-carbon composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Metal-composite low-carbon magnesium-carbon composite material, the composite material is made by compression molding of the following components by weight percentage:

[0034] Magnesia 89% Graphite 4.0%

[0035] Metal steel fiber 3.0% phenolic resin 1.0%

[0036] Metal deoxidizer 3.0%; The metal deoxidizer includes metal aluminum powder and silicon powder, and the ratio of aluminum to silicon is 2.5:1.

[0037] The above-mentioned method for preparing a metal-composite low-carbon magnesium-carbon composite material is prepared by using the above-mentioned components through mixing, trapping, pressing and curing.

Embodiment 2

[0039] Metal-composite low-carbon magnesium-carbon composite material, the composite material is made by compression molding of the following components by weight percentage:

[0040] Magnesia 91% Graphite 3.5%

[0041] Metal steel fiber 1.5% Phenolic resin 1.5%

[0042] Metal deoxidizer 2.5%; The metal deoxidizer includes metal aluminum powder and silicon powder, and the ratio of aluminum to silicon is 2.5:1.

[0043] The above-mentioned method for preparing a metal-composite low-carbon magnesium-carbon composite material is prepared by using the above-mentioned components through mixing, trapping, pressing and curing.

Embodiment 3

[0045] Metal-composite low-carbon magnesium-carbon composite material, the composite material is made by compression molding of the following components by weight percentage:

[0046] Magnesia 86% Graphite 4.5%

[0047] Metal steel fiber 3.5% Phenolic resin 2.5%

[0048] Metal deoxidizer 3.5%; The metal deoxidizer includes metal aluminum powder and silicon powder, and the ratio of aluminum to silicon is 2.5:1.

[0049] The above-mentioned method for preparing a metal-composite low-carbon magnesium-carbon composite material is prepared by using the above-mentioned components through mixing, trapping, pressing and curing.

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Abstract

The invention relates to a refractory material for steel making, particularly a metal composite low-carbon magnesium-carbon composite material. The metal composite low-carbon magnesium-carbon composite material is prepared by carrying out pressure molding on the following components in percentage by weight: 85-95% of magnesite, 2.0-4.5% of graphite, 1.0-6.0% of metal steel fiber, 0.5-2.0% of phenol formaldehyde resin and 1.5-5.0% of metal deoxidizer. The metal deoxidizer is composed of metal aluminum powder and silicon powder in a ratio of 2.0:1-3.0:1. The composite material enhances thermal shock stability and high-temperature strength of the low-carbon magnesium-carbon brick.

Description

technical field [0001] The invention relates to a refractory material for steelmaking. Background technique [0002] With the continuous progress of the society and the rapid development of the iron and steel industry, the requirements for the quality of steel varieties are continuously improved, making the working conditions of various refining furnace linings tend to be high temperature, the heat load time is prolonged, combined with oxygen blowing, argon blowing and vacuuming, Especially in the case of smelting low-carbon steel, ultra-low carbon steel and killed steel, the commonly used magnesia-chrome bricks, alumina-magnesia-carbon bricks, magnesia-dolomite bricks, castables, ordinary magnesia-carbon bricks, etc., can no longer meet the requirements of steel Quality improvement and smelting speed requirements. [0003] At present, refining furnace steelmaking is also known as out-of-furnace refining, and there are more than 30 methods, among which DH, RH, AOD, VOD, LF,...

Claims

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Application Information

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IPC IPC(8): C04B35/66
Inventor 陆建荣
Owner 德清县力拓炉料有限公司
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