Aluminum-carbon refractory material and its preparation

A refractory material, aluminum-carbon technology, applied in the field of new inorganic non-metallic materials, can solve the problems of strength reduction, aluminum-carbon refractory damage, etc., to achieve the effect of increasing service life, reducing production costs and improving operation rate

Inactive Publication Date: 2003-06-18
维苏威高级陶瓷(鞍山)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the aluminum-carbon refractories used in continuous casting steel, the carbon in the material is dissolved by molten steel during the steel casting process, resulting in decarburization, and the Al after decarburization 2 o 3 The strength of the matrix part decreases, and it peels off with the erosion of molten steel, which will bring a new round of decarburization and peeling, so the damage of aluminum-carbon refractories is intensified

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The raw material of aluminum-carbon refractories consists of the following components: 30Kg of flake graphite, 4Kg of silicon carbide, 4Kg of metal silicon powder, 10Kg of fused quartz, 10Kg of fused zirconia mullite, 42Kg of white corundum, 10Kg of liquid phenolic resin-214 and phosphoric acid Aluminum dihydrogen powder 12Kg.

[0017] The composite binder-bonded aluminum-carbon refractory material of the present invention can be produced by uniformly mixing the components of the above-mentioned raw materials according to the above-mentioned method.

Embodiment 2

[0019] The raw material of aluminum-carbon refractory material consists of the following components: flake graphite 25Kg, silicon carbide 4Kg, metal silicon powder 4Kg, fused quartz 5Kg, fused zirconia mullite 10Kg, white corundum 52Kg, liquid phenolic resin-214 10Kg and phosphoric acid Aluminum dihydrogen powder 10Kg.

[0020] The composite binder-bonded aluminum-carbon refractory material of the present invention can be produced by uniformly mixing the components of the above-mentioned raw materials according to the above-mentioned method.

Embodiment 3

[0022] The raw material of aluminum-carbon refractory material consists of the following components: flake graphite 20Kg, silicon carbide 4Kg, metal silicon powder 4Kg, fused quartz 2Kg, fused zirconia mullite 10Kg, white corundum 60Kg, liquid phenolic resin-214 10Kg and phosphoric acid Aluminum dihydrogen powder 8Kg.

[0023] The composite binder-bonded aluminum-carbon refractory material of the present invention can be produced by uniformly mixing the components of the above-mentioned raw materials according to the above-mentioned method.

[0024] The properties of the above-mentioned products are shown in Table 1 (the test data in the table are determined by methods routine in the art).

[0025] project

Example 1

Example 2

Example 3

Apparent porosity%

11.5

12.0

12.3

Compressive strength Mpa

39.6

37.3

35.1

Flexural strength Mpa

14.8

13.5

12.8

Use timemin

768

856

847

Eros...

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PUM

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Abstract

A Alc refractory used for conticasting of steel features use of composite adhesive, liquid phenolic resin and powdered aluminium dihydrogen phosphate. Its advantages are excellent resistance to corrosion, flush and oxidation, and low cost.

Description

technical field [0001] The present invention relates to a new type of inorganic non-metallic material, in particular to an aluminum-carbon refractory material used in the production of continuous steel casting, especially an aluminum-carbon refractory material combined with a composite binder, and the present invention also relates to the preparation of the above-mentioned refractory material method. Background technique [0002] At present, the aluminum-carbon refractories used in continuous casting steel, the carbon in the material is dissolved by molten steel during the steel casting process, resulting in decarburization, and the Al after decarburization 2 o 3 The strength of the matrix part decreases, and it peels off with the erosion of molten steel, which will bring a new round of decarburization and peeling, so the damage of aluminum-carbon refractories is intensified. In order to solve this problem, there are two ways, one is to add antioxidants to improve the oxid...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/103C04B35/622C04B35/66
Inventor 任永曾李轼宝韩波孙运华王利来刘永军田勇
Owner 维苏威高级陶瓷(鞍山)有限公司
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