CN104250099A - Al2O3-MgO refractory castable and preparation method thereof - Google Patents

Al2O3-MgO refractory castable and preparation method thereof Download PDF

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CN104250099A
CN104250099A CN201310254691.3A CN201310254691A CN104250099A CN 104250099 A CN104250099 A CN 104250099A CN 201310254691 A CN201310254691 A CN 201310254691A CN 104250099 A CN104250099 A CN 104250099A
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mgo
raw
particle diameter
spinel
fine powder
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CN104250099B (en
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邱文冬
李楠
欧阳军华
韩兵强
何晓俊
鄢文
齐晓青
何平显
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Wuhan University of Science and Engineering WUSE
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Wuhan University of Science and Engineering WUSE
Shanghai Baosteel Industry Technological Service Co Ltd
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Abstract

The invention discloses an Al2O3-MgO refractory castable and a preparation method thereof. Specifically, the refractory castable comprises: 55-75wt% of corundum grains, 10-25wt% of corundum fine powder, 5-25wt% of light burned spinel fine powder, 0.8-5wt% of magnesia fine powder, 3-6wt% of calcium aluminate cement, 1-4wt% of alpha-Al2O3 micropowder, 0.2-2wt% of silicon oxide micropowder, additional water accounting for 4.5-6wt% of the refractory castable and 0.1-1wt% of a water reducer. The preparation method includes: stirring the raw materials of the refractory castable evenly, conducting pouring vibration molding, letting the molded refractory castable green body dry naturally for 24h, and then conducting drying at 110DEG C for 12-36h, thus obtaining the Al2O3-MgO refractory castable. The refractory castable has the characteristics of controllable microstructure and controllable spinel crystal structure parameters, and the high temperature volume stability and slag resistance of refractory castable are effectively improved. The preparation method has the advantages of simple process, energy saving and environmental protection, and low cost.

Description

Al 2o 3-MgO refractory casting material and preparation method thereof
Technical field
The present invention relates to refractory materials, particularly relate to a kind of Al 2o 3-MgO refractory casting material and preparation method thereof.
Background technology
Al 2o 3-MgO refractory casting material has the advantages that excellent performance and being easy to is built by laying bricks or stones, has now been widely used at the bottom of the Bao Bi of ladle and bag as inner lining material.Refractory materials is generally made up of aggregate and matrix, and base portion has material impact to refractory materials character, particularly slag resistance, to Al 2o 3introducing spinel in-MgO refractory casting material matrix is one of important method improving its performance.
Domestic and international to Al at present 2o 3introduce spinel in-MgO refractory casting material matrix and mainly contain three kinds of methods.The first is to Al 2o 3introduce MgO raw material in-MgO refractory casting material matrix and form spinel with original position, as Chinese patent application CN102718513A " a kind of Aluminum-magnesium refractory castable material and preparation method thereof ", it improves Al by introducing 2 ~ 10% in matrix containing magnesium material original position formation spinel 2o 3the thermal shock resistance of-MgO refractory casting material; The second is to Al 2o 3directly Pre-synthesized spinel is introduced in-MgO refractory casting material matrix, comprise electric smelting spinel or sintering spinel etc., as " silicate circular " 2009,28(1): " spinel is on the impact of corundum-spinel castable performance " introduction in 90-93, in corundum-spinel castable, directly introduce sintering spinel, improve the performance of mould material; The third is simultaneously to Al 2o 3pre-synthesized spinel and In-suit spinel is introduced in-MgO refractory casting material matrix, as " fire-resistant and lime " 2012,37(1): " pre-synthesis and In-suit spinel are on the impact of cement in conjunction with high-alumina refractory mould material physicals " introduction in 26-30, In-suit spinel is utilized to improve mould material thermal shock resistance and slag-resistant aggressiveness, utilize Pre-synthesized spinel to guarantee volume stability, improve the performance of mould material.
But aforesaid method exists certain defect respectively: during (1) employing first method, due to larger volumetric expansion can be produced when original position forms spinel, make mould material inside produce tiny crack, cause slag resistance to reduce; (2) when adopting the second and the third method, need to introduce Pre-synthesized spinel, but at present Pre-synthesized spinel is the electric smelting spinel formed through more than 2000 DEG C meltings or the sintering spinel burnt till through more than 1700 DEG C high temperature, in these Pre-synthesized spinel raw material processes of preparation, mass energy can be wasted, and cost of manufacture is high; (3) comparatively greatly, be difficult to be uniformly dispersed in refractory materials, though can increase homodisperse degree by after its fine grinding, undersized can cause erosion-resisting characteristics to decline, and thus farthest can not improve Al for usual electric smelting spinel or sintering spinel tap density 2o 3the slag resistance of-MgO refractory casting material.
Summary of the invention
Technical problem to be solved by this invention is to provide a kind of Al 2o 3-MgO refractory casting material and preparation method thereof, this refractory castable has the advantages that microstructure is controlled, spinel crystal structure parameter is controlled, effectively improve high volume stability and the slag resistance of refractory castable, this preparation method technique be simple, energy-conserving and environment-protective, with low cost.
For solving the problems of the technologies described above, Al of the present invention 2o 3-MgO refractory casting material comprises corundum in granules, the corundum fine powder of 10 ~ 25wt%, the light-burned spinel fine powder of 5 ~ 25wt%, the magnesia powder of 0.8 ~ 5wt%, the aluminous cement of 3 ~ 6wt%, the α-Al of 1 ~ 4wt% of 55 ~ 75wt% 2o 3the ultrafine silica powder of micro mist, 0.2 ~ 2wt%, the additional water of refractory castable 4.5 ~ 6wt% and the water reducer of 0.1 ~ 1wt%.
Further, above-mentioned light-burned spinel fine powder is with magnesite, Mg (OH) 2or a kind of raw material in light calcined magnesia or more than one raw materials are mixed into MgO raw material by any proportioning, with Al (OH) 3or a kind of raw material in commercial alumina or two kinds of raw materials are mixed into Al by any proportioning 2o 3raw material; By Al 2o 3al in raw material 2o 3quality carry out preparing burden and mixing with the mass ratio 68:32 ~ 85:15 of MgO in MgO raw material, obtain MgO raw material and Al 2o 3the compound of raw material, compression moulding after the water of additional compound 3 ~ 8wt% stirs, by the compound base substrate after shaping under 110 DEG C of conditions dry 8 ~ 24 hours, is then incubated and burns till for 2 ~ 8 hours, obtain light-burned spinel under 1300 ~ 1550 DEG C of conditions; Finally light-burned spinel is broken, screening, choosing the fine powder that particle diameter is less than 0.088mm is light-burned spinel fine powder.
Further, the particle diameter of above-mentioned corundum in granules is 88 μm ~ 8mm, wherein Al 2o 3content>=95wt%; The particle diameter of above-mentioned corundum fine powder for being less than 88 μm, wherein Al 2o 3content>=98wt%.
Further, the particle diameter of above-mentioned magnesia powder for being less than 88 μm, wherein content of MgO >=96wt%.
Further, the particle diameter of above-mentioned aluminous cement is for being less than 88 μm.
Further, above-mentioned α-Al 2o 3the particle diameter of micro mist for being less than 3 μm, wherein Al 2o 3content>=98wt%.
Further, the particle diameter of above-mentioned ultrafine silica powder for being less than 3 μm, wherein SiO 2content>=95wt%.
Further, above-mentioned water reducer is one or more in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or poly carboxylic acid series water reducer.
Preparation Al 2o 3the method of-MgO refractory casting material: raw material stirring each in refractory castable is even, cast vibratory compaction, the refractory castable base substrate seasoning after shaping 24 hours, then under 110 DEG C of conditions dry 12 ~ 36 hours, obtain Al 2o 3-MgO refractory casting material.
Due to Al of the present invention 2o 3-MgO refractory casting material and preparation method thereof have employed technique scheme, and namely this refractory castable comprises corundum in granules, the corundum fine powder of 10 ~ 25wt%, the light-burned spinel fine powder of 5 ~ 25wt%, the magnesia powder of 0.8 ~ 5wt%, the aluminous cement of 3 ~ 6wt%, the α-Al of 1 ~ 4wt% of 55 ~ 75wt% 2o 3the ultrafine silica powder of micro mist, 0.2 ~ 2wt%, the additional water of refractory castable 4.5 ~ 6wt% and the water reducer of 0.1 ~ 1wt%.This preparation method is that raw material stirring each in refractory castable is even, cast vibratory compaction, the refractory castable base substrate seasoning after shaping 24 hours, then under 110 DEG C of conditions dry 12 ~ 36 hours, obtain Al 2o 3-MgO refractory casting material.This refractory castable has the advantages that microstructure is controlled, spinel crystal structure parameter is controlled, effectively improves high volume stability and the slag resistance of refractory castable, and this preparation method technique is simple, energy-conserving and environment-protective, with low cost.
Embodiment
Al of the present invention 2o 3-MgO refractory casting material comprises corundum in granules, the corundum fine powder of 10 ~ 25wt%, the light-burned spinel fine powder of 5 ~ 25wt%, the magnesia powder of 0.8 ~ 5wt%, the aluminous cement of 3 ~ 6wt%, the α-Al of 1 ~ 4wt% of 55 ~ 75wt% 2o 3the ultrafine silica powder of micro mist, 0.2 ~ 2wt%, the additional water of refractory castable 4.5 ~ 6wt% and the water reducer of 0.1 ~ 1wt%.
Further, above-mentioned light-burned spinel fine powder is with magnesite, Mg (OH) 2or a kind of raw material in light calcined magnesia or more than one raw materials are mixed into MgO raw material by any proportioning, with Al (OH) 3or a kind of raw material in commercial alumina or two kinds of raw materials are mixed into Al by any proportioning 2o 3raw material; By Al 2o 3al in raw material 2o 3quality carry out preparing burden and mixing with the mass ratio 68:32 ~ 85:15 of MgO in MgO raw material, obtain MgO raw material and Al 2o 3the compound of raw material, compression moulding after the water of additional compound 3 ~ 8wt% stirs, by the compound base substrate after shaping under 110 DEG C of conditions dry 8 ~ 24 hours, is then incubated and burns till for 2 ~ 8 hours, obtain light-burned spinel under 1300 ~ 1550 DEG C of conditions; Finally light-burned spinel is broken, screening, choosing the fine powder that particle diameter is less than 0.088mm is light-burned spinel fine powder.
Further, the particle diameter of above-mentioned corundum in granules is 88 μm ~ 8mm, wherein Al 2o 3content>=95wt%; The particle diameter of above-mentioned corundum fine powder for being less than 88 μm, wherein Al 2o 3content>=98wt%.
Further, the particle diameter of above-mentioned magnesia powder for being less than 88 μm, wherein content of MgO >=96wt%.
Further, the particle diameter of above-mentioned aluminous cement is for being less than 88 μm.
Further, above-mentioned α-Al 2o 3the particle diameter of micro mist for being less than 3 μm, wherein Al 2o 3content>=98wt%.
Further, the particle diameter of above-mentioned ultrafine silica powder for being less than 3 μm, wherein SiO 2content>=95wt%.
Further, above-mentioned water reducer is one or more in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or poly carboxylic acid series water reducer.
Preparation Al 2o 3the method of-MgO refractory casting material: raw material stirring each in refractory castable is even, cast vibratory compaction, the refractory castable base substrate seasoning after shaping 24 hours, then under 110 DEG C of conditions dry 12 ~ 36 hours, obtain Al 2o 3-MgO refractory casting material.
Under be classified as every specific embodiment:
Embodiment 1
Be the corundum in granules of 8 ~ 5mm by particle diameter, the particle diameter corundum in granules that is 5 ~ 3mm, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, the α-Al of 1 ~ 0.088mm 2o 3micro mist and ultrafine silica powder are mixed by 7 ~ 10wt%, 20 ~ 24wt%, 20 ~ 24wt%, 8 ~ 12wt%, 20 ~ 25wt%, 5 ~ 10wt%, 2 ~ 4wt%, 3 ~ 6wt%, 1 ~ 3wt% and 1 ~ 2wt% respectively, the additional above-mentioned water of compound 4.5 ~ 6wt% and the tripoly phosphate sodium STPP of 0.1 ~ 0.3wt% mix, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 12 ~ 24 hours.
Wherein, Al in light-burned spinel 2o 3be 75:25 ~ 80:20 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.10 ~ 0.18%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 2
Be the corundum in granules of 5 ~ 3mm by particle diameter, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be 1 ~ 0.088mm corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, α-Al 2o 3micro mist and ultrafine silica powder are mixed by 25 ~ 30wt%, 25 ~ 30wt%, 10 ~ 15wt%, 15 ~ 20wt%, 10 ~ 15wt%, 2 ~ 4wt%, 3 ~ 6wt%, 2 ~ 4wt% and 0.2 ~ 1.5wt% respectively, the additional above-mentioned water of compound 4.5 ~ 6wt% and the Sodium hexametaphosphate 99 of 0.2 ~ 0.4wt% mix, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 24 ~ 36 hours.
Wherein, Al in light-burned spinel 2o 3be 72:28 ~ 78:22 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.19 ~ 0.24%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 3
Be the corundum in granules of 3 ~ 1mm by particle diameter, particle diameter is corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, the α-Al of 1 ~ 0.088mm 2o 3micro mist and ultrafine silica powder are mixed by 35 ~ 45wt%, 20 ~ 30wt%, 20 ~ 25wt%, 5 ~ 10wt%, 2 ~ 4wt%, 3 ~ 6wt%, 1 ~ 3wt% and 1 ~ 2wt% respectively, the additional above-mentioned water of compound 4.5 ~ 6wt% and the poly carboxylic acid series water reducer of 0.2 ~ 0.4wt% mix, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 18 ~ 30 hours.
Wherein, Al in light-burned spinel 2o 3be 78:22 ~ 82:18 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.15 ~ 0.22%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 4
Be the corundum in granules of 5 ~ 3mm by particle diameter, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be 1 ~ 0.088mm corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, α-Al 2o 3micro mist and ultrafine silica powder are mixed by 25 ~ 30wt%, 25 ~ 30wt%, 10 ~ 15wt%, 10 ~ 15wt%, 15 ~ 20wt%, 3 ~ 5wt%, 3 ~ 6wt%, 2 ~ 4wt% and 0.2 ~ 1.5wt% respectively, the Sodium hexametaphosphate 99 of the additional above-mentioned water of compound 4.5 ~ 6wt%, the tripoly phosphate sodium STPP of 0.1 ~ 0.3wt% and 0.1 ~ 0.3wt% mixes, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 24 ~ 36 hours.
Wherein, Al in light-burned spinel 2o 3be 82:18 ~ 85:15 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.12 ~ 0.20%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 5
Be the corundum in granules of 5 ~ 3mm by particle diameter, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be 1 ~ 0.088mm corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, α-Al 2o 3micro mist and ultrafine silica powder are mixed by 25 ~ 30wt%, 25 ~ 30wt%, 10 ~ 15wt%, 12 ~ 20wt%, 12 ~ 20wt%, 3 ~ 5wt%, 3 ~ 6wt%, 1 ~ 3wt% and 1 ~ 2wt% respectively, the poly carboxylic acid series water reducer of the additional above-mentioned water of compound 4.5 ~ 6wt%, the tripoly phosphate sodium STPP of 0.1 ~ 0.3wt% and 0.2 ~ 0.4wt% mixes, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 24 ~ 36 hours.
Wherein, Al in light-burned spinel 2o 3be 70:30 ~ 75:25 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.15 ~ 0.23%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 6
Be the corundum in granules of 8 ~ 5mm by particle diameter, the particle diameter corundum in granules that is 5 ~ 3mm, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, the α-Al of 1 ~ 0.088mm 2o 3micro mist and ultrafine silica powder are mixed by 7 ~ 10wt%, 20 ~ 24wt%, 20 ~ 24wt%, 8 ~ 12wt%, 10 ~ 15wt%, 20 ~ 25wt%, 0.8 ~ 2wt%, 3 ~ 6wt%, 2 ~ 4wt% and 0.2 ~ 1.5wt% respectively, the poly carboxylic acid series water reducer of the additional above-mentioned water of compound 4.5 ~ 6wt%, the Sodium hexametaphosphate 99 of 0.1 ~ 0.3wt% and 0.2 ~ 0.4wt% mixes, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 12 ~ 24 hours.
Wherein, Al in light-burned spinel 2o 3be 68:32 ~ 72:28 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.11 ~ 0.17%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
Embodiment 7
Be the corundum in granules of 5 ~ 3mm by particle diameter, the particle diameter corundum in granules that is 3 ~ 1mm, particle diameter be 1 ~ 0.088mm corundum in granules, corundum fine powder, light-burned spinel fine powder, magnesia powder, aluminous cement, α-Al 2o 3micro mist and ultrafine silica powder are mixed by 25 ~ 30wt%, 25 ~ 30wt%, 10 ~ 15wt%, 10 ~ 15wt%, 15 ~ 20wt%, 3 ~ 5wt%, 3 ~ 6wt%, 2 ~ 4wt% and 0.2 ~ 1.5wt% respectively, the poly carboxylic acid series water reducer of the water of additional above-mentioned compound 4.5 ~ 5.5wt%, the tripoly phosphate sodium STPP of 0.1 ~ 0.3wt%, the Sodium hexametaphosphate 99 of 0.1 ~ 0.3wt% and 0.2 ~ 0.4wt% mixes, cast vibratory compaction; The seasoning 24 hours in atmosphere of compound base substrate after shaping, then under 110 DEG C of conditions dry 24 ~ 36 hours.
Wherein, Al in light-burned spinel 2o 3be 80:20 ~ 85:15 with the mass ratio of MgO, light-burned spinel crystal lattice distortion is 0.14 ~ 0.22%.
Obtained refractory castable has good high volume stability and excellent slag resistance.
This refractory castable has the light-burned spinel of specified chemical composition and crystal parameters by the preparation of Controlling Technology condition, then by introducing light-burned spinel and In-suit spinel in refractory materials matrix simultaneously, has obtained Al 2o 3-MgO refractory casting material.Utilize the microdilatancy during tap density and higher lattice distortion and In-suit spinel generation that light-burned spinel is less simultaneously, improve high volume stability and the slag resistance of refractory castable.Meanwhile, substitute traditional Pre-synthesized spinel with light-burned spinel, reduce the energy expenditure in stock preparation process and CO 2discharge, has energy-conserving and environment-protective, advantage with low cost.This preparation method overcomes Pre-synthesized spinel through high-temperature fusion and electric smelting spinel through the defect of high temperature sintering, effectively reduces energy consumption prepared by raw material, this preparation method technique is simple, energy-conserving and environment-protective, with low cost; The Al of preparation 2o 3-MgO refractory casting material not only has the feature that microstructure is controlled, spinel crystal structure parameter is controlled, has more higher high volume stability and the advantage of better slag resistance.

Claims (9)

1. an Al 2o 3-MgO refractory casting material, is characterized in that: this refractory castable comprises corundum in granules, the corundum fine powder of 10 ~ 25wt%, the light-burned spinel fine powder of 5 ~ 25wt%, the magnesia powder of 0.8 ~ 5wt%, the aluminous cement of 3 ~ 6wt%, the α-Al of 1 ~ 4wt% of 55 ~ 75wt% 2o 3the ultrafine silica powder of micro mist, 0.2 ~ 2wt%, the additional water of refractory castable 4.5 ~ 6wt% and the water reducer of 0.1 ~ 1wt%.
2. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: described light-burned spinel fine powder is with magnesite, Mg (OH) 2or a kind of raw material in light calcined magnesia or more than one raw materials are mixed into MgO raw material by any proportioning, with Al (OH) 3or a kind of raw material in commercial alumina or two kinds of raw materials are mixed into Al by any proportioning 2o 3raw material; By Al 2o 3al in raw material 2o 3quality carry out preparing burden and mixing with the mass ratio 68:32 ~ 85:15 of MgO in MgO raw material, obtain MgO raw material and Al 2o 3the compound of raw material, compression moulding after the water of additional compound 3 ~ 8wt% stirs, by the compound base substrate after shaping under 110 DEG C of conditions dry 8 ~ 24 hours, is then incubated and burns till for 2 ~ 8 hours, obtain light-burned spinel under 1300 ~ 1550 DEG C of conditions; Finally light-burned spinel is broken, screening, choosing the fine powder that particle diameter is less than 0.088mm is light-burned spinel fine powder.
3. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: the particle diameter of described corundum in granules is 88 μm ~ 8mm, wherein Al 2o 3content>=95wt%; The particle diameter of described corundum fine powder for being less than 88 μm, wherein Al 2o 3content>=98wt%.
4. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: the particle diameter of described magnesia powder for being less than 88 μm, wherein content of MgO>=96wt%.
5. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: the particle diameter of described aluminous cement is for being less than 88 μm.
6. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: described α-Al 2o 3the particle diameter of micro mist for being less than 3 μm, wherein Al 2o 3content>=98wt%.
7. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: the particle diameter of described ultrafine silica powder for being less than 3 μm, wherein SiO 2content>=95wt%.
8. Al according to claim 1 2o 3-MgO refractory casting material, is characterized in that: described water reducer is one or more in tripoly phosphate sodium STPP, Sodium hexametaphosphate 99 or poly carboxylic acid series water reducer.
9. prepare the Al described in any one of claim 1 to 8 for one kind 2o 3the method of-MgO refractory casting material, is characterized in that: raw material stirring each in refractory castable is even, cast vibratory compaction, the refractory castable base substrate seasoning after shaping 24 hours, then under 110 DEG C of conditions dry 12 ~ 36 hours, obtain Al 2o 3-MgO refractory casting material.
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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773995A (en) * 2015-04-01 2015-07-15 马鞍山市东江冶金材料有限公司 Quick temperature measurement component acidic stuffing with low moisture regaining possibility
CN104909774A (en) * 2015-06-03 2015-09-16 武汉科技大学 Calcium-aluminate-cement-bound aluminum magnesium castable and preparation method thereof
CN104909771A (en) * 2015-06-03 2015-09-16 武汉科技大学 Calcium aluminate cement-combined corundum castable and preparation method thereof
CN104987095A (en) * 2015-07-13 2015-10-21 赵彬 Preparation method of magnesian castable with function of hydration resistance
CN105036773A (en) * 2015-08-03 2015-11-11 丹东播磨耐火材料有限公司 Steel ladle bottom concreting material
CN106336231A (en) * 2016-08-29 2017-01-18 武汉科技大学 Fireproof working lining used for steel refining and preparing method thereof
CN107188549A (en) * 2017-06-05 2017-09-22 武汉科技大学 A kind of copper converter gunning refractory and preparation method thereof
CN107915493A (en) * 2017-12-06 2018-04-17 宁波爱克创威新材料科技有限公司 Corundum magnesium system castable and preparation method thereof
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101016211A (en) * 2006-12-21 2007-08-15 武汉科技大学 Aluminum-magnesium series lightweight pouring material and manufacturing method thereof
CN101462886A (en) * 2008-12-31 2009-06-24 武汉科技大学 Al2O3-MgO fire-resistant material pouring casting material and preparation thereof
CN101891485A (en) * 2009-05-21 2010-11-24 宝山钢铁股份有限公司 Pouring material for steel ladle
CN102531643A (en) * 2010-12-30 2012-07-04 济南新峨嵋实业有限公司 Gunning lining-making method for steel ladle
CN102775170A (en) * 2012-07-30 2012-11-14 浙江锦诚耐火材料有限公司 Preparation method of choke block for aluminum electrolytic tank

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101016211A (en) * 2006-12-21 2007-08-15 武汉科技大学 Aluminum-magnesium series lightweight pouring material and manufacturing method thereof
CN101462886A (en) * 2008-12-31 2009-06-24 武汉科技大学 Al2O3-MgO fire-resistant material pouring casting material and preparation thereof
CN101891485A (en) * 2009-05-21 2010-11-24 宝山钢铁股份有限公司 Pouring material for steel ladle
CN102531643A (en) * 2010-12-30 2012-07-04 济南新峨嵋实业有限公司 Gunning lining-making method for steel ladle
CN102775170A (en) * 2012-07-30 2012-11-14 浙江锦诚耐火材料有限公司 Preparation method of choke block for aluminum electrolytic tank

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104773995A (en) * 2015-04-01 2015-07-15 马鞍山市东江冶金材料有限公司 Quick temperature measurement component acidic stuffing with low moisture regaining possibility
CN104909774A (en) * 2015-06-03 2015-09-16 武汉科技大学 Calcium-aluminate-cement-bound aluminum magnesium castable and preparation method thereof
CN104909771A (en) * 2015-06-03 2015-09-16 武汉科技大学 Calcium aluminate cement-combined corundum castable and preparation method thereof
CN104909771B (en) * 2015-06-03 2017-06-13 武汉科技大学 Aluminous cement combined corundum matter castable and preparation method thereof
CN104987095A (en) * 2015-07-13 2015-10-21 赵彬 Preparation method of magnesian castable with function of hydration resistance
CN105036773A (en) * 2015-08-03 2015-11-11 丹东播磨耐火材料有限公司 Steel ladle bottom concreting material
CN105036773B (en) * 2015-08-03 2020-04-07 丹东播磨耐火材料有限公司 Ladle bottom castable
CN106336231A (en) * 2016-08-29 2017-01-18 武汉科技大学 Fireproof working lining used for steel refining and preparing method thereof
CN106336231B (en) * 2016-08-29 2019-02-12 武汉科技大学 A kind of steel refining whole fire resisting working lining and preparation method thereof
CN107188549A (en) * 2017-06-05 2017-09-22 武汉科技大学 A kind of copper converter gunning refractory and preparation method thereof
CN107915493A (en) * 2017-12-06 2018-04-17 宁波爱克创威新材料科技有限公司 Corundum magnesium system castable and preparation method thereof
CN109020579A (en) * 2018-09-13 2018-12-18 武汉钢铁有限公司 Ladle heat insulation aluminum-magnesium light castable
CN110028313A (en) * 2019-05-17 2019-07-19 山东工业职业学院 A kind of corundum crucible and preparation method thereof

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