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Environment-friendly composite tundish dry liner

A composite, environmentally friendly technology, used in casting melt containers, manufacturing tools, metal processing equipment, etc., can solve the problems of toxic effects on the body of workers, poor resistance to slag penetration and erosion, and improve penetration and corrosion resistance. , The effect of reducing production costs and not polluting the environment

Active Publication Date: 2008-07-02
海城利尔麦格西塔材料有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The ubiquitous problems are: the release of irritating and toxic gases during baking, which is harmful to the body of workers on the production and use sites, and has poor resistance to slag penetration and erosion during use.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Environmental protection composite dry lining, the composition of the material is as follows: 50 parts of magnesia, 30 parts of calcite, 10 parts of spinel, 8 parts of high alumina bauxite, 8 parts of binder, and 2 parts of sintering agent;

[0025] Described binding agent selects silica fume, and described sintering agent selects boric acid as sintering reinforcing agent;

[0026] The technological process is as follows: After crushing and screening magnesia, calcite or limestone, spinel and high alumina bauxite, they are mixed according to the ratio of raw materials, then adding binder and sintering agent, mixing and stirring, and bagging. Finished product.

Embodiment 2

[0028] The environment-friendly composite dry lining is characterized in that the composition of the material is: 30 parts by weight of magnesia, 5 parts of limestone, 2 parts of spinel, 2 parts of high alumina bauxite, 1 part of binder, and 0.2 parts of sintering agent. share;

[0029] Described binding agent selects aqueous sodium metasilicate (5H 2 O); Described sintering agent selects iron oxide red as sintering reinforcing agent;

[0030] The technological process is as follows: After crushing and screening magnesia, calcite or limestone, spinel and high alumina bauxite, they are mixed according to the ratio of raw materials, then adding binder and sintering agent, mixing and stirring, and bagging. Finished product.

Embodiment 3

[0032] Environmentally friendly composite dry liner, characterized in that the material is composed of 70 parts by weight of magnesia, 50 parts of calcite or limestone, 15 parts of spinel, 15 parts of high alumina bauxite, 15 parts of binder, sintered 5 doses;

[0033] Described binding agent selects white cotton sugar;

[0034] Described sintering agent selects phosphate as sintering reinforcing agent;

[0035] The technological process is as follows: After crushing and screening magnesia, calcite or limestone, spinel and high alumina bauxite, they are mixed according to the ratio of raw materials, then adding binder and sintering agent, mixing and stirring, and bagging. Finished product.

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PUM

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Abstract

The invention relates to black inside linings for metallurgical continuous casting tundish, wherein the constituents of the lining material comprise (by weight percent) magnesite 30-70 parts, calcite or lime stone 5-50 parts, spinelle 2-15 parts, bauxite 2-15 parts, conjugation agent 1-15 parts, agglutinant 0.2-5 parts. The conjugation agent is selected from inorganic salts or frosted sugar, refined white sugar and crystallized sugar, the agglutination strengthening agent is selected from boracic acid, borax, table salt, silicate, iron oxide red and microcosmic salts.

Description

technical field [0001] The invention relates to a black metallurgical continuous casting tundish lining. Background technique [0002] At present, the tundish dry lining materials widely used at home and abroad are still mainly limited to magnesium and magnesium-calcium, and the former is the main one, and the binder is almost all phenolic resin or asphalt powder. The ubiquitous problems are: the release of irritating and toxic gases during baking, which is harmful to the health of the workers on the production and use sites, and the ability to resist the penetration and erosion of slag during use is poor. Contents of the invention [0003] The purpose of the present invention is to provide an environment-friendly composite tundish dry lining, which can significantly reduce the production cost of continuous casting, does not produce irritating and toxic gases during baking, does not pollute the environment, and is non-toxic to the body of production and construction person...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/66C04B14/30C04B22/00C04B24/38C04B35/04B22D41/02
Inventor 王相丰王生张义先王威
Owner 海城利尔麦格西塔材料有限公司
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