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Anti-erosion aluminum-magnesium castable

A castable, anti-erosion technology, used in applications, household appliances, casting melt containers, etc., can solve the problem of not greatly increasing the amount of water added, and achieve good corrosion resistance, improved corrosion resistance, and easy construction. The effect of forming

Inactive Publication Date: 2020-08-18
TANGSHAN GUOLIANG SPEICAL REFRACTORY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the non-wettability of traditional carbon materials and water, it is difficult to apply carbon materials in monolithic refractory materials. There are two keys to introducing carbon sources. One is how to make carbon sources very fast without greatly increasing the amount of water added. Good dispersion, the second is how to prevent the carbon source from being oxidized and fail, which requires a good dispersant, water reducing agent and suitable antioxidant to work together

Method used

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  • Anti-erosion aluminum-magnesium castable
  • Anti-erosion aluminum-magnesium castable

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] An anti-corrosion aluminum-magnesium castable is made of the following raw materials:

[0029] 85 high aluminum material 8-15mm: 18 parts; 85 high aluminum material 5-8mm: 12 parts; 85 high aluminum material 3-5mm: 15 parts; 85 high aluminum material 1-3mm: 15 parts;

[0030] 88 high aluminum material 0-1mm: 10 parts;

[0031] Self-supporting tabular alumina 200 mesh: 11 parts;

[0032] Magnesium aluminum spinel powder: 4 parts;

[0033] 96 fused high-purity magnesia 200 mesh: 6 parts;

[0034] Active Al 2 o 3 Micropowder (CL370): 5 parts;

[0035] Silica powder (951): 3 parts;

[0036] Carbon black N330: 0.5 parts;

[0037] Antioxidant ACAO: 0.5 parts;

[0038] 0.1 part of explosion-proof fiber;

[0039] 0.05 parts of sodium hexametaphosphate;

[0040] ABC 0.1 part.

[0041] The performance testing method adopted is carried out in accordance with the current national standards or industry standards. The test results obtained are shown in Table 1. The above-m...

Embodiment 2

[0045] An anti-corrosion aluminum-magnesium castable is made of the following raw materials:

[0046] 85 high aluminum material 8-15mm: 20 parts; 85 high aluminum material 5-8mm: 10 parts; 85 high aluminum material 3-5mm: 14 parts; 85 high aluminum material 1-3mm: 14 parts;

[0047] 88 high aluminum material 0-1mm: 12 parts;

[0048] Self-supporting tabular alumina 200 mesh: 10.7 parts;

[0049] Magnesium aluminum spinel powder: 5 parts;

[0050] 96 fused high-purity magnesia 200 mesh: 4 parts;

[0051] Active Al 2 o 3 Micropowder (CL370): 6 parts;

[0052] Silica powder (951): 2.5 parts;

[0053] Carbon black N330: 1 part;

[0054] Antioxidant ACAO: 0.8 parts;

[0055] 0.1 part of explosion-proof fiber;

[0056] Sodium hexametaphosphate 0.05 part, ABC 0.15 part.

[0057] The performance test method adopted is carried out in accordance with the current national standards or industry standards. The test results obtained are shown in Table 2. The above-mentioned castab...

Embodiment 3

[0061] An anti-corrosion aluminum-magnesium castable is made of the following raw materials:

[0062] 85 high aluminum material 8-15mm: 22 parts; 85 high aluminum material 5-8mm: 8 parts; 85 high aluminum material 3-5mm: 15 parts; 85 high aluminum material 1-3mm: 15 parts;

[0063] 88 high aluminum material 0-1mm: 12 parts;

[0064] Self-supporting tabular alumina 200 mesh: 6 parts;

[0065] Magnesium aluminum spinel powder: 6 parts;

[0066] 96 fused high-purity magnesia 200 mesh: 6 parts;

[0067] Active Al 2 o 3 Micropowder (CL370): 6 parts;

[0068] Silica powder (951): 2 parts;

[0069] Carbon black N330: 1 part;

[0070] Antioxidant ACAO: 1 part;

[0071] Explosion-proof fiber 0.15 parts;

[0072] Sodium hexametaphosphate 0.05 part, ABC 0.15 part.

[0073] The performance test method adopted is carried out in accordance with the current national standards or industry standards. The test results obtained are shown in Table 3. The above-mentioned castables are us...

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Abstract

The invention relates to an anti-erosion aluminum-magnesium castable comprising the following raw materials in parts: 85 high-aluminum materials, 88 high-aluminum materials, self-supporting tabular corundum, fused magnesite, magnesium aluminate spinel, aluminum oxide micro-powder, silicon micro-powder, nano carbon black, an anti-erosion agent ACAO, explosion-proof fibers, a water reducing agent and sodium hexametaphosphate. The anti-erosion aluminum-magnesium refractory castable disclosed by the invention is excellent in application and construction performance on a steel ladle, is easy to construct and shape, and can meet the requirements of no cracking during demolding and baking, scouring erosion resistance, oxidation resistance and ladle life improvement; a formed steel ladle is not subjected to secondary repair, the steel passing amount reaches 12,000 tons or more, the castable can be continuously used after sleeve beating and pouring, and the anti-erosion aluminum-magnesium castable has the characteristics of high scouring erosion resistance, long service life and the like, and has a good application prospect.

Description

technical field [0001] The invention belongs to the technical field of unshaped refractory materials, and in particular relates to an anti-corrosion aluminum-magnesium castable. Background technique [0002] As an important equipment in the steel production process, the ladle is an intermediate container between steelmaking and continuous casting. The molten steel is in the ladle from the converter to the end of the pouring process. Due to the quality requirements of the continuous casting steel, the ladle castable The quality of molten steel has a great influence on the impurity content in molten steel, so the optimization of ladle castables is an important way to improve the quality of converter steelmaking. [0003] Ladle castables are a kind of unshaped refractory materials with good fluidity. The materials usually used in existing ladle castables are corundum, spinel, high alumina, mullite, etc. Ladle castables are not only Assuming the role of a container, it also par...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/101C04B35/63C04B38/06B22D41/02
CPCB22D41/02C04B35/101C04B35/6303C04B38/065C04B2235/3206C04B2235/3222C04B2235/3418C04B2235/424C04B2235/5212C04B2235/5284C04B2235/5427C04B2235/5436C04B2235/9607C04B2235/9676C04B2235/9684
Inventor 杨强李德民王义龙马伟平黄建坤梁小龙王子军
Owner TANGSHAN GUOLIANG SPEICAL REFRACTORY MATERIAL
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