CN104193376A - Aluminum-enriched magnesia-alumina spinel refractory material - Google Patents
Aluminum-enriched magnesia-alumina spinel refractory material Download PDFInfo
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- CN104193376A CN104193376A CN201410462298.8A CN201410462298A CN104193376A CN 104193376 A CN104193376 A CN 104193376A CN 201410462298 A CN201410462298 A CN 201410462298A CN 104193376 A CN104193376 A CN 104193376A
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- magnesia
- alumina spinel
- refractory material
- enriched
- aluminum
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Abstract
The invention relates to a refractory material, in particular to an aluminum-enriched magnesia-alumina spinel refractory material. The aluminum-enriched magnesia-alumina spinel refractory material comprises chemical components of Al2O3, MgO, SiO2, CaO and Fe2O3. The magnesia-alumina spinel generated by sintering the MgO and the Fe2O3 has higher melting point and strength, good anti-erosion ability and abrasion resistance, good thermal stability and stable chemical properties. Therefore, the aluminum-enriched magnesia-alumina spinel refractory material has the advantages of being high in melting point, high in strength, good in anti-erosion capability, strong in structure spalling resistance, good in slag resistance and reting stability, and long in service life, and is an excellent aluminum-enriched magnesia-alumina spinel refractory material.
Description
Technical field
The present invention relates to a kind of refractory materials, especially a kind of rich aluminium magnesia-alumina spinel refractory.
Background technology
Traditional refractory materials is clay brick and the third-class high alumina brick forming through sintering mostly, and this refractory materials in use demonstrates poor spalling resistance and erosion resistance, and work-ing life is low.Along with the maximization of steelmaking equipment, high efficiency, continuous casting and to laborsaving, energy-conservation continuous pursuit, Refractory for Ladle also will be by using material, construction and repairing technique freely, can reduce significantly unit consumption, but also the work-ing life that will improve Refractory for Ladle.In addition, people are more and more higher to the requirement of steel quality, correspondingly will guarantee the production of Clean Steel, just must improve the quality of Refractory for Ladle, reduce the foreign matter content in refractory materials.
Summary of the invention
The present invention is intended to address the above problem, and a kind of rich aluminium magnesia-alumina spinel refractory is provided, and its fusing point is high, and corrosion resistance is good, and antistripping ability is strong, and work-ing life is longer, and its technical scheme adopting is as follows:
A rich aluminium magnesia-alumina spinel refractory, is characterized in that: the chemical constitution of described refractory materials comprises following component, and its mass percent is respectively:
In technique scheme, described Al
2o
3being alumine, is principal crystalline phase; Described Al
2o
3part can be combined with MgO and be generated magnesium-aluminium spinel, as the main combination phase of alumine.
Tool of the present invention has the following advantages: MgO and Al
2o
3the magnesium-aluminium spinel that sintering generates has higher fusing point and intensity, and thermal expansion is little, thermal stresses is low, good corrosion resistance and abrasion resistance, and resistive connection structure peel-ability is strong, the heat good stability that shakes, stable chemical nature.SiO
2can with matrix in MgO, Al
2o
3deng composition, react, accelerate Mg
2+, Al
3+to the rate of diffusion in melt, spinel generating rate is improved, the spinel crystal grain of generation is tiny and fine and close, simultaneously SiO
2promoted Al
2o
3to solid solution in spinel, form aluminium riched spinel, more effectively absorb the FeO infiltrating in slag, the compositions such as MnO, become composite spinelle, and the viscosity of slag is increased.CaO energy and Al in slag
2o
3form dystectic aluminate and make the slag contacting with mould material become high-melting-point, full-bodied slag.Therefore, it has high-melting-point, high strength, good corrosion resistance, and resistive connection structure peel-ability is strong, slag resistance good, the heat good stability that shakes, long service life, is a kind of rich aluminium magnesia-alumina spinel refractory of excellence.
Embodiment
Below in conjunction with example, the invention will be further described:
A rich aluminium magnesia-alumina spinel refractory, is characterized in that: the chemical constitution of described refractory materials comprises following component, and its mass percent is respectively:
In technique scheme, described Al
2o
3being alumine, is principal crystalline phase; Described Al
2o
3part can be combined with MgO and be generated magnesium-aluminium spinel, as the main combination phase of alumine.
With way of example, describe the present invention above, but the invention is not restricted to above-mentioned specific embodiment, all any changes of doing based on the present invention or modification all belong to the scope of protection of present invention.
Claims (2)
1. a rich aluminium magnesia-alumina spinel refractory, is characterized in that: the chemical constitution of described refractory materials comprises following component, and its mass percent is respectively:
。
2. a kind of rich aluminium magnesia-alumina spinel refractory according to claim 1, is characterized in that: described Al
2o
3being alumine, is principal crystalline phase; Described Al
2o
3part can be combined with MgO and be generated magnesium-aluminium spinel, as the main combination phase of alumine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462298.8A CN104193376A (en) | 2014-09-12 | 2014-09-12 | Aluminum-enriched magnesia-alumina spinel refractory material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410462298.8A CN104193376A (en) | 2014-09-12 | 2014-09-12 | Aluminum-enriched magnesia-alumina spinel refractory material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104193376A true CN104193376A (en) | 2014-12-10 |
Family
ID=52078792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410462298.8A Pending CN104193376A (en) | 2014-09-12 | 2014-09-12 | Aluminum-enriched magnesia-alumina spinel refractory material |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104193376A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266240A (en) * | 2020-10-26 | 2021-01-26 | 湖北斯曼新材料股份有限公司 | Method for synthesizing aluminum-rich spinel by low-temperature solid-phase reaction |
| CN112745134A (en) * | 2021-01-13 | 2021-05-04 | 营口四通高温新材料科技有限公司 | Air brick containing corundum ceramic balls and preparation method thereof |
| CN116283246A (en) * | 2023-03-21 | 2023-06-23 | 郭燕平 | Unshaped refractory material and preparation process thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772696A (en) * | 2005-09-29 | 2006-05-17 | 郑州大学 | Alumina-base fused high-purity spinel and its prepn |
| CN101186321A (en) * | 2007-12-11 | 2008-05-28 | 武汉科技大学 | Electric melting magnesium aluminum spinel and manufacturing method thereof |
-
2014
- 2014-09-12 CN CN201410462298.8A patent/CN104193376A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1772696A (en) * | 2005-09-29 | 2006-05-17 | 郑州大学 | Alumina-base fused high-purity spinel and its prepn |
| CN101186321A (en) * | 2007-12-11 | 2008-05-28 | 武汉科技大学 | Electric melting magnesium aluminum spinel and manufacturing method thereof |
Non-Patent Citations (2)
| Title |
|---|
| 李晓娜: "铝灰制备镁铝尖晶石及其在Al2O3-MgAl2O4耐火材料中的应用", 《中国优秀硕士学位论文全文数据库 工程科技I辑》 * |
| 谢长清: "矾土基高铝—尖晶石钢包浇注料的研究与应用", 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112266240A (en) * | 2020-10-26 | 2021-01-26 | 湖北斯曼新材料股份有限公司 | Method for synthesizing aluminum-rich spinel by low-temperature solid-phase reaction |
| CN112745134A (en) * | 2021-01-13 | 2021-05-04 | 营口四通高温新材料科技有限公司 | Air brick containing corundum ceramic balls and preparation method thereof |
| CN116283246A (en) * | 2023-03-21 | 2023-06-23 | 郭燕平 | Unshaped refractory material and preparation process thereof |
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| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20141210 |
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| WD01 | Invention patent application deemed withdrawn after publication |