CN104193374A - Magnesium-aluminum refractory material - Google Patents
Magnesium-aluminum refractory material Download PDFInfo
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- CN104193374A CN104193374A CN201410442851.1A CN201410442851A CN104193374A CN 104193374 A CN104193374 A CN 104193374A CN 201410442851 A CN201410442851 A CN 201410442851A CN 104193374 A CN104193374 A CN 104193374A
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- magnesium
- refractory material
- aluminum
- forsterite
- monticellite
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Abstract
The invention relates to a refractory material, and particularly relates to a magnesium-aluminum refractory material. The magnesium-aluminum refractory material comprises the following mineral constituents: periclase (M), magnesium-alumina spinel (MA), forsterite (M2S), calcium-magnesium monticellite (CMS), and magnesium ferrite (MF). The magnesium-alumina spinel (MA) is high in melting point, small in thermal expansion, low in thermal stress, and good in thermal shock stability, has stable chemical property and strong resistance to basic slag, is a core for using magnesium-aluminum non-burning bricks, and is one of key materials for prolonging the service life. Therefore, the magnesium-aluminum refractory material has no seam melting loss and has better anti-slagging capacity and thermal shock resistance, the structure peeling phenomenon caused by the penetration of molten steel and slag can be overcome, and the service life is obviously prolonged; and as the product is non-burning or burnt at low temperature, energy resources can be saved, the cost can be lowered, the economic benefits are obvious, and thus the magnesium-aluminum refractory material is a high-quality refractory material.
Description
Technical field
The present invention relates to a kind of refractory materials, especially a kind of refractory magnesia-alumina material.
Background technology
Ladle is indispensable visual plant in Steel industry, as the refractory materials of ladle liner, large several times variation occurred.Be to adopt the traditional clay brick forming through sintering and third-class high alumina brick in the past, this refractory materials in use demonstrates poor spalling resistance and erosion resistance, and work-ing life is low, on average only has 10 times, the treated left and right that also can only reach 20 times.Along with the development of steel-smelting technology, the raising that molten steel furnace external refining requires ladle lining fireproof material, refractory magnesia-alumina brick starts to be applied with its excellent performance, and in use updates, and makes its performance more excellent, has caused people's attention.
Summary of the invention
The present invention is intended to address the above problem, and a kind of refractory magnesia-alumina material is provided, and its resistive connection structure spalling is good, good thermal shock stability, and its technical scheme adopting is as follows:
A refractory magnesia-alumina material, is characterized in that: its mineral composition is periclasite (M), magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF), the weight percent of each composition is respectively periclasite (M) 60-70%, magnesium-aluminium spinel (MA) 30-40%, forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) (total) 0.5-2%; Described periclasite (M) is principal crystalline phase, described magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) be matrix, described magnesium-aluminium spinel (MA) is mainly in conjunction with phase in matrix.
Tool of the present invention has the following advantages: magnesium-aluminium spinel (MA) has compared with high fusing point, thermal expansion is little, thermal stresses is low, heat is shaken good stability, it has more stable chemical property simultaneously, basic slag is had to stronger resistivity, being the core point that magnalium green brick is used, is one of key substance improving the life-span.Forsterite (M
2s) SiO in
2mainly to increase normal temperature strength and acceleration of sintering.Therefore, this kind of refractory materials do not have brickwork joint melting loss, there is good anti-slag ability and shaking property of heat resistanceheat resistant, overcome the structure spalling phenomenon that the infiltration of molten steel and slag causes, obviously improve work-ing life, and these goods are owing to being not burn or easy fired, save energy, reduced cost, economic benefit is fairly obvious, is a kind of refractory materials of excellent quality.
Embodiment
Below in conjunction with example, the invention will be further described:
A refractory magnesia-alumina material, is characterized in that: its mineral composition is periclasite (M), magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF), the weight percent of each composition is respectively periclasite (M) 60-70%, magnesium-aluminium spinel (MA) 30-40%, forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) (total) 0.5-2%; Described periclasite (M) is principal crystalline phase, described magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) be matrix, described magnesium-aluminium spinel (MA) is mainly in conjunction with phase in matrix.
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 refractory magnesia-alumina material, is characterized in that: its mineral composition is periclasite (M), magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF), the weight percent of each composition is respectively periclasite (M) 60-70%, magnesium-aluminium spinel (MA) 30-40%, forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) (total) 0.5-2%.
2. a kind of refractory magnesia-alumina material according to claim 1, is characterized in that: described periclasite (M) is principal crystalline phase, described magnesium-aluminium spinel (MA), forsterite (M
2s), monticellite (CMS), magnesium ferrite (MF) be matrix, described magnesium-aluminium spinel (MA) is mainly in conjunction with phase in matrix.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442851.1A CN104193374A (en) | 2014-09-02 | 2014-09-02 | Magnesium-aluminum refractory material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410442851.1A CN104193374A (en) | 2014-09-02 | 2014-09-02 | Magnesium-aluminum refractory material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104193374A true CN104193374A (en) | 2014-12-10 |
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ID=52078790
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410442851.1A Pending CN104193374A (en) | 2014-09-02 | 2014-09-02 | Magnesium-aluminum refractory material |
Country Status (1)
| Country | Link |
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| CN (1) | CN104193374A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954748A (en) * | 2015-12-30 | 2018-04-24 | 苏州大学 | Anti-slag invades refractory material |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412629A (en) * | 2008-08-29 | 2009-04-22 | 瑞泰科技股份有限公司 | Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same |
| CN103214249A (en) * | 2012-01-24 | 2013-07-24 | 黑崎播磨株式会社 | Basic brick |
-
2014
- 2014-09-02 CN CN201410442851.1A patent/CN104193374A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101412629A (en) * | 2008-08-29 | 2009-04-22 | 瑞泰科技股份有限公司 | Periclase-magnesium aluminate spinel composite refractory brick and technique for producing the same |
| CN103214249A (en) * | 2012-01-24 | 2013-07-24 | 黑崎播磨株式会社 | Basic brick |
Non-Patent Citations (1)
| Title |
|---|
| 陈娜: "方镁石—尖晶石质耐火材料的制备及其挂窑皮性能的研究", 《CNKI-中国优秀硕士论文全文数据库》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107954748A (en) * | 2015-12-30 | 2018-04-24 | 苏州大学 | Anti-slag invades refractory material |
| CN107954748B (en) * | 2015-12-30 | 2020-01-14 | 苏州大学 | Slag-corrosion-resistant refractory material |
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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 |