CN104649691A - Thermal shock resistant magnesium spinel brick and preparation method thereof - Google Patents
Thermal shock resistant magnesium spinel brick and preparation method thereof Download PDFInfo
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- CN104649691A CN104649691A CN201510009015.9A CN201510009015A CN104649691A CN 104649691 A CN104649691 A CN 104649691A CN 201510009015 A CN201510009015 A CN 201510009015A CN 104649691 A CN104649691 A CN 104649691A
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Abstract
The invention provides a thermal shock resistant magnesium spinel brick and a preparation method thereof. In a using process of the magnesium spinel brick, a TiC and B4C non-oxide phase and a MgFe2O4 and Mg2TiO4 composite oxide solid solution phase are generated therein; the magnesium spinel brick is prepared from the following raw materials in percentage by weight: 70-85% of fused magnesite particles and fine powders, 3-10% of nano aluminum magnesium spinel powder, 3-6% of alpha-Al2O3 micro powder, 2-8% of aluminum powder, 0.5-10% of nano titanium oxide and 2-5% of boric acid, wherein the addition amount of a carbon-containing additive is 2.8-5.2% of the total weight of fused magnesite, nano aluminum magnesium spinel powder, alpha-Al2O3 micro powder, aluminum powder, nano titanium oxide and boric acid. The thermal shock residual strength ratio of the magnesium spinel brick is 30% higher than that of a Cr26 magnesium brick in the prior art, the high-temperature bending resistance reaches more than 15MPa, the normal temperature compression strength reaches more than 170MPa, the service life is longer, and the safety and the reliability are attractive.
Description
Technical field
The present invention relates to refining furnace magnesia-spinel brick, be specifically related to a kind of anti-thermal shock magnesia-spinel brick and preparation method thereof.
Background technology
Along with the progress of metallurgical industry, the continuous adjusting and optimizing of steel products structure, the demand of China to high-quality steel increases further.Refining furnace steel-making is widelyd popularize as the secondary refining method that a kind of cost performance is the highest and is applied, and correspondingly, also proposes higher requirement to refining furnace refractory materials.
At present, refining furnace refractory materials mainly based on magnesia chrome brick, because this product contains chromic oxide, under high temperature, oxidizing atmosphere or alkaline condition, Cr wherein
3+cr can be converted into
6+, and Cr
6+soluble in water, Cr in addition
2o
3also can exist with gas phase, polluted air in air can be entered with flue gas in process of production, thus very serious pollution is produced to environment such as water source, air, soil masses, become superpower carcinogenic substance, the harm more serious to the healthy generation of the mankind.Prepare magnesia chrome brick to need to use chrome ore raw material, and the chromium ore resource of China is poorer.Therefore people are devoted to the research and development work of RH refining furnace Chrome free refractories product innovation always.Publication number is that the Chinese patent of CN 1715246 discloses a kind of RH vacuum furnace lining Chrome free refractories, mainly magnesium zirconia refractory, and zirconium white and the zircon of its use are expensive, cause production cost too high.Publication number is that the Chinese patent of CN 102775156 A discloses one and do not burn magnesia-spinel brick, and it is corundum-spinel fire resistant materials mainly, and this not burn magnesia-spinel brick void content higher, thermal shock resistance is poor.
Summary of the invention
The object of this invention is to provide a kind of concrete comparatively highly heatproof and shockproof stability, and in use, TiC and B can be formed between magnesium oxide particle
4c non-oxidized substance phase, MgFe
2o
4and Mg
2tiO
4the magnesia-spinel brick of composite oxide solid solution phase, and the preparation method of this magnesia-spinel brick.
The technical scheme that the present invention is adopted for achieving the above object is: a kind of anti-thermal shock magnesia-spinel brick, and this magnesia-spinel brick is that after one can be applied to refining furnace, in use inside generates TiC and B
4c non-oxidized substance phase, and MgFe
2o
4and Mg
2tiO
4the refractory brick of composite oxide solid solution phase, its by electrosmelted magnesite clinker particle and fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide, boric acid and containing carbon admixt composition, by weight percentage, the add-on of each raw material is followed successively by: electrosmelted magnesite clinker particle and fine powder 70 ~ 85%, nano aluminum magnesia spinel powder 3 ~ 10%,
micro mist 3 ~ 6%, aluminium powder 2 ~ 8%, nano-titanium oxide 0.5 ~ 10% and boric acid 2 ~ 5%, the add-on containing carbon admixt be electrosmelted magnesite clinker, nano aluminum magnesia spinel powder,
2.8 ~ 5.2% of micro mist, aluminium powder, nano-titanium oxide and boric acid gross weight.
In the present invention, for nano-titanium oxide, require its granularity≤20nm, chemical composition requires TiO
2>=99%; The granularity of aluminium powder is≤0.074mm, and its chemical composition requires Al>=99%.
In the present invention, the weight ratio of electrosmelted magnesite clinker particle and fine powder is 58 ~ 69:10 ~ 15.Wherein, electrosmelted magnesite clinker particle by particle diameter be the particle of 5 ~ 3mm, particle diameter be the particle of 3 ~ 1mm and particle diameter is the granulometric composition of 1 ~ 0.074mm, the weight ratio of 5 ~ 3mm, 3 ~ 1mm and 1 ~ 0.074mm tri-kinds of particles is 20 ~ 30:20 ~ 30:15 ~ 25; Granularity≤the 0.074mm of electrosmelted magnesite clinker fine powder, its chemical composition and mass percent thereof are: MgO>=98%, CaO≤1.0%, SiO
2≤ 1.2%, Fe
2o
3≤ 1.0%; Igloss≤0.1%.
Nano aluminum magnesia spinel powder in the present invention is sintered aluminium magnesia spinel and/or electric smelting aluminum-spinel, and the granularity of nano aluminum magnesia spinel powder is 20 ~ 30nm, and its chemical composition and mass percent thereof are: Al
2o
374 ~ 76%, MgO22 ~ 24%, Fe
2o
3≤ 0.5%, SiO
2≤ 0.2%, surplus is impurity; Igloss≤0.1%.
In the present invention
micro mist, granularity is 1 ~ 5 micron, and its chemical composition and mass percent thereof are: Al
2o
3>=99%, Fe
2o
3≤ 0.2%, SiO
2≤ 0.2%, surplus is impurity;
phase content>=90%, igloss≤0.5%.
In the present invention is one or more in heat-reactive phenolic resin, novolac resin or modifying asphalt resin containing carbon admixt.
A preparation method for anti-thermal shock magnesia-spinel brick, comprises the following steps: step one, according to above-mentioned weight percent: electrosmelted magnesite clinker particle and fine powder 70 ~ 85%, nano aluminum magnesia spinel powder 3 ~ 10%,
micro mist 3 ~ 6%, aluminium powder 2 ~ 8%, nano-titanium oxide 0.5 ~ 10% and boric acid 2 ~ 5%, the add-on containing carbon admixt be electrosmelted magnesite clinker, nano aluminum magnesia spinel powder,
2.8 ~ 5.2% of micro mist, aluminium powder, nano-titanium oxide and boric acid gross weight, the weight ratio of electrosmelted magnesite clinker particle and fine powder is 58 ~ 69:10 ~ 15.Take electrosmelted magnesite clinker fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide and boric acid, and fully mix, obtained premix, for subsequent use;
What step 2, step one took joins in electrosmelted magnesite clinker particle containing carbon admixt, abundant mix and blend 5 ~ 10min, then in this stirred vessel, adds the obtained premix of step one, abundant mix and blend 20 ~ 30min, and obtained compound is for subsequent use;
Step 3, under 630T pressure condition, adopt semidrying compression moulding to make adobe compound obtained for step 2, by qualified adobe through seasoning 24h, and dried adobe process 48 ~ 72h at 400 ~ 500 DEG C, obtain magnesia-spinel brick.Wherein, the press that in this step, semidrying compression moulding adopts is any one in friction brick press, isostatic pressing machine or hydropress.
Aluminum-spinel is incorporated in magnesia-spinel brick with nano-powder form by the present invention, object is in order to a part of spinel nucleus reserved in magnesia-spinel brick matrix, make electrosmelted magnesite clinker and alumina powder based on this nucleus, in use there is spinel reaction, thus magnesia-spinel brick is sintered as early as possible, produce the crystal phase structure being similar to magnesium-aluminium spinel burnt product, to reach the object of anti-erosion, chipping resistance.
Beneficial effect of the present invention: containing nano-titanium oxide in (1), raw material of the present invention, in the use procedure of magnesia-spinel brick, generates complicated MgFe
2o
4and Mg
2tiO
4solid solution, oxide phase, particularly at iron content alkaline melt and CaFe
2o
4during slag action, following reaction is had to carry out: Fe+MgO+TiO
2→ MgFe
2o
4+ Mg
2tiO
4, the MgFe that reaction generates
2o
4sosoloid covers on brick surface or MgO particle, the resistance to fouling of strongthener and thermal shock resistance; The Mg generated
2tiO
4solid solution, oxide mineral facies are present between MgO particle, effectively can prevent high-temperature fusant from passing the gap of the skeleton of resistance to material that MgO particle is formed, improve the anti-scour property of magnesia-spinel brick.
(2) a kind of magnesia-spinel brick, prepared by the present invention, nano-titanium oxide is added in raw material, due to the surfactivity of nano-titanium oxide and specific surface area larger, the effect of the antioxidant of the metallic aluminium powder added is made to obtain better performance, nano-titanium oxide, aluminium powder and the speed of response containing carbon admixt three, much larger than aluminium powder and the speed of response containing carbon admixt, significantly reduce Al
4c
3remaining in magnesia-spinel brick, significantly improve and given full play to the anti-oxidant and high temperature enhancement caused by aluminium powder, the TiC fusing point generated is high, in reticulated structure, oxidation-resistance scouring can be improved, compared with prior art, when using the aluminium powder of same amount to make antioxidant, the high-temperature oxidation resistance that nano-titanium oxide can improve magnesia-spinel brick is added; In the use procedure of this magnesia-spinel brick, at high temperature, boric acid reacts with the carbon introduced containing carbon admixt, generates the B combined with covalent linkage
4c non-oxidized substance phase, has the advantages that high-melting-point, high rigidity, wear-resisting, acid-alkali-corrosive-resisting and the coefficient of expansion are low.
(3), the electrosmelted magnesite clinker of nano aluminum magnesia spinel powder, nano-titanium oxide, particle and finely powdered that additional proportion is different in raw material of the present invention, because nano-titanium oxide, nano aluminum magnesia spinel powder do not mate with the thermal expansivity of electrosmelted magnesite clinker, in thermal shocking process, different stress fields can be produced, thus change the microstructure of magnesia-spinel brick, improve the thermal shock resistance of magnesia-spinel brick; Meanwhile, nano-titanium oxide can reduce the overall thermal coefficient of expansion of magnesia-spinel brick, improves the density of brick body, thus improves the hot strength of magnesia-spinel brick.
(4) a kind of magnesia-spinel brick, prepared by the present invention, adopts chromium free raw material, can not produce Cr in production with in using
6+, avoid Cr
6+pollute, protection of the environment, avoids Cr
6+to the healthy generation harm of the mankind; Preparation process of the present invention adopts and exempts from high temperature firing process, and production energy consumption is little, reduces production cost; A kind of magnesia-spinel brick prepared by the present invention, demonstrating, than existing magnesia chrome brick, there is more excellent over-all properties through capabilities of refractory materials test, its thermal shock residual strength conservation rate exceeds more than 30% than traditional C r26 magnesia brick, high temperature break resistant intensity reaches more than 15MPa, cold crushing strength reaches more than 170MPa, long service life, safe reliability is good.
Embodiment
A kind of anti-thermal shock magnesia-spinel brick, this magnesia-spinel brick is that one can be applied to refining furnace, and in use, magnesia-spinel brick inside generates TiC and B
4c non-oxidized substance phase, and MgFe
2o
4and Mg
2tiO
4composite oxide solid solution phase, its by electrosmelted magnesite clinker particle and fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide, boric acid and containing carbon admixt composition, by weight percentage, the add-on of each raw material is followed successively by: electrosmelted magnesite clinker particle and fine powder 70 ~ 85%, nano aluminum magnesia spinel powder 3 ~ 10%,
micro mist 3 ~ 6%, aluminium powder 2 ~ 8%, nano-titanium oxide 0.5 ~ 10% and boric acid 2 ~ 5%, the add-on containing carbon admixt be electrosmelted magnesite clinker, nano aluminum magnesia spinel powder,
2.8 ~ 5.2% of micro mist, aluminium powder, nano-titanium oxide and boric acid gross weight.
Wherein, the weight ratio of electrosmelted magnesite clinker particle and fine powder is 58 ~ 69:10 ~ 15; Electrosmelted magnesite clinker particle by particle diameter be the particle of 5 ~ 3mm, particle diameter be the particle of 3 ~ 1mm and particle diameter is the granulometric composition of 1 ~ 0.074mm, the weight ratio of 5 ~ 3mm, 3 ~ 1mm and 1 ~ 0.074mm tri-kinds of particles is 20 ~ 30:20 ~ 30:15 ~ 25.
Wherein, the granularity≤0.074mm of electrosmelted magnesite clinker fine powder, its chemical composition and mass percent thereof are: MgO>=98%, CaO≤1.0%, SiO
2≤ 1.2%, Fe
2o
3≤ 1.0%; Igloss≤0.1%.Nano aluminum magnesia spinel powder is sintered aluminium magnesia spinel and/or electric smelting aluminum-spinel, and the granularity of nano aluminum magnesia spinel powder is 20 ~ 30nm, and its chemical composition and mass percent thereof are: Al
2o
374 ~ 76%, MgO22 ~ 24%, Fe
2o
3≤ 0.5%, SiO
2≤ 0.2%, surplus is impurity; Igloss≤0.1%.
The present invention also provides a kind of method of producing above-mentioned magnesia-spinel brick, is specially: first by electrosmelted magnesite clinker fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide and boric acid, by the weight percent proportioning of above-mentioned magnesia-spinel brick component, mix, make premix; Slowly add disposable in 2min for electrosmelted magnesite clinker particle containing carbon admixt, mix 5 ~ 10min, mix after finally adding all premixs 20 ~ 30min discharging, then compression moulding again, and dry baking, kiln discharge is checked, and obtains described magnesia-spinel brick.Above-mentioned shaping be carry out on 630 tons and above tonnage presses; Above-mentioned drying baking need at 400 ~ 500 DEG C of thermal treatment 48 ~ 72h.The press that compression moulding adopts is any one in friction press, isostatic pressing machine or hydropress.
Embodiment 1 ~ 4, proportioning described according to the form below 1, by aforementioned production method, the obtained magnesia-spinel brick containing nano-titanium oxide.
Table 1 embodiment 1 ~ 4 proportioning raw materials table (weight percent)
Cr26(and Cr of embodiment 1 ~ 4 products obtained therefrom and the application of current refining furnace
2o
3mass percentage) magnesia chrome brick, contrast test the results are shown in Table 2, wherein, what embodiment 1 adopted is novolac resin containing carbon admixt, what embodiment 2 adopted is modifying asphalt resin containing carbon admixt, what embodiment 3 adopted is heat-reactive phenolic resin and modifying asphalt resin containing carbon admixt, and what embodiment 4 adopted is heat-reactive phenolic resin, novolac resin and modifying asphalt resin containing carbon admixt.
In table 2, (1), to carry out apparent porosity, volume density, cold crushing strength, high temperature break resistant intensity (1400 DEG C × 0.5h) according to national compact refractory material standard of articles, burn after the project such as Linear change rate (1550 DEG C × 3h) detect.(2), heat-shock resistance puts into the thermal shock stove of 1100 DEG C, insulation 20min, air-cooled 15min after taking out, repeats this process 3 times repeatedly, residual strength after test thermal shock, using residual strength conservation rate measuring as heat-shock resistance quality.(3), the test of oxidation-resistance is placed in electric furnace by goods, and in air atmosphere, be heated to 1550 DEG C, insulation 3h, longitudinally cuts in half after being cooled to room temperature, measure its practical decarburized depth.(4), slag corrosion resistance and perviousness adopt Static crucible method, the degree of depth of crucible specimen erodes and infiltration evaluated to slag corrosion resistance and the perviousness of product with certain steel mill RH refinery scum under 1650 DEG C of conditions.
Product and the Cr26 magnesia chrome brick performance index of table 2 embodiment 1 ~ 4 contrast
A kind of Chrome-free provided by the invention does not burn magnesia-spinel brick, and do not contain chromium element and not carburetting, long service life, simple by production technique, good operational environment, production energy consumption is little.Chrome-free of the present invention does not burn magnesia-spinel brick and utilizes varigrained nano-titanium oxide powder mix to improve the microstructure of magnesia-spinel brick, promotes that the metallic aluminium powder antioxidant used plays one's part to the full the oxidation-resistance improving magnesia-spinel brick; Utilize nano-titanium oxide not mate with the thermal expansivity of magnesia, design different mismatch, improve the thermal shock resistance of magnesia-spinel brick; Utilize titanium oxide powder mix, make the Mg forming a kind of complexity between magnesium oxide particle
2tiO
4and MgFe
2o
4oxide solid solution improves the resistance to slag corrosion of magnesia-spinel brick.MgFe
2o
4solubleness fluctuation in MgO is very large, when the temperature increases, and a large amount of MgFe
2o
4be dissolved in lattice; When temperature reduces, then there is more weak anisotropic dendritic crystal and particulate state inclusion precipitating in the surface and cleavage crack of magnesia spinel particle, thus promote the growth of its crystal and the sintering of goods.
From table 1 and table 2, the thermal shock residual strength conservation rate of the magnesia-spinel brick that embodiment 1 ~ 4 is obtained, oxidation-resistance, cold crushing strength and high temperature break resistant intensity are all better than traditional C r26 magnesia chrome brick.This is owing to adding nano-titanium oxide in raw material, and introduce carbon simple substance containing carbon admixt, raw material reacts as follows: 4Al+3C+3TiO
2=2Al
2o
3+ 3TiC, because nano-titanium oxide surfactivity is large, specific surface area is large, and this reaction is more easily carried out, and significantly reduces the Al of aluminium and carbon simple substance reaction generation
4c
3residual in brick body, significantly improved and given full play to metallic aluminium powder the anti-oxidant and high temperature enhancement that rises.The promoter action of the titanium oxide of smaller particle size, the effect of the antioxidant of the metallic aluminium powder added is made to obtain better performance, therefore, when using the metallic aluminium powder of less content to make antioxidant, add the high-temperature oxidation resistance that nano-titanium oxide can improve magnesia-spinel brick.And, add the nano-titanium oxide of different content and ratio in raw material, because nano-titanium oxide does not mate with the thermal expansivity of magnesia, in thermal shocking process, different stress fields can be produced, thus change the microstructure of magnesia-spinel brick, improve the thermal shock resistance of magnesia-spinel brick.
That more than enumerates is only specific embodiments of the invention, obviously the invention is not restricted to above embodiment, has many similar changes thereupon.If all distortion that those skilled in the art directly derives from content disclosed by the invention or associates, protection scope of the present invention all should be belonged to.
Claims (8)
1. an anti-thermal shock magnesia-spinel brick, is characterized in that: this magnesia-spinel brick is that after one can be applied to refining furnace, in use inside generates TiC and B
4c non-oxidized substance phase, and MgFe
2o
4and Mg
2tiO
4the refractory brick of composite oxide solid solution phase, its by electrosmelted magnesite clinker particle and fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide, boric acid and containing carbon admixt composition, by weight percentage, the add-on of each raw material is followed successively by: electrosmelted magnesite clinker particle and fine powder 70 ~ 85%, nano aluminum magnesia spinel powder 3 ~ 10%,
micro mist 3 ~ 6%, aluminium powder 2 ~ 8%, nano-titanium oxide 0.5 ~ 10% and boric acid 2 ~ 5%, the add-on containing carbon admixt be electrosmelted magnesite clinker, nano aluminum magnesia spinel powder,
2.8 ~ 5.2% of micro mist, aluminium powder, nano-titanium oxide and boric acid gross weight.
2. a kind of anti-thermal shock magnesia-spinel brick according to claim 1, is characterized in that: the weight ratio of described electrosmelted magnesite clinker particle and fine powder is 58 ~ 69:10 ~ 15.
3. a kind of anti-thermal shock magnesia-spinel brick according to claim 1 and 2, it is characterized in that: described electrosmelted magnesite clinker particle by particle diameter be the particle of 5 ~ 3mm, particle diameter be the particle of 3 ~ 1mm and particle diameter is the granulometric composition of 1 ~ 0.074mm, the weight ratio of 5 ~ 3mm, 3 ~ 1mm and 1 ~ 0.074mm tri-kinds of particles is 20 ~ 30:20 ~ 30:15 ~ 25.
4. a kind of anti-thermal shock magnesia-spinel brick according to claim 1 and 2, it is characterized in that: the granularity≤0.074mm of described electrosmelted magnesite clinker fine powder, its chemical composition and mass percent thereof are: MgO>=98%, CaO≤1.0%, SiO
2≤ 1.2%, Fe
2o
3≤ 1.0%; Igloss≤0.1%.
5. a kind of anti-thermal shock magnesia-spinel brick according to claim 1, it is characterized in that: described nano aluminum magnesia spinel powder is sintered aluminium magnesia spinel and/or electric smelting aluminum-spinel, and the granularity of nano aluminum magnesia spinel powder is 20 ~ 30nm, its chemical composition and mass percent thereof are: Al
2o
374 ~ 76%, MgO22 ~ 24%, Fe
2o
3≤ 0.5%, SiO
2≤ 0.2%, surplus is impurity; Igloss≤0.1%.
6. a kind of anti-thermal shock magnesia-spinel brick according to claim 1, is characterized in that: described is one or more in heat-reactive phenolic resin, novolac resin or modifying asphalt resin containing carbon admixt.
7. a preparation method for anti-thermal shock magnesia-spinel brick as claimed in claim 2, is characterized in that, comprise the following steps:
Step one, weight percent according to described raw material, take successively electrosmelted magnesite clinker fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide, boric acid and containing carbon admixt, then by electrosmelted magnesite clinker fine powder, nano aluminum magnesia spinel powder,
micro mist, aluminium powder, nano-titanium oxide and boric acid fully mix, obtained premix, for subsequent use;
Step 2, weight percent according to described raw material, take electrosmelted magnesite clinker particle, and the carbon admixt that contains step one taken joins in electrosmelted magnesite clinker particle, abundant mix and blend 5 ~ 10min, the premix that step one is obtained is added again in this stirred vessel, abundant mix and blend 20 ~ 30min, obtained compound, for subsequent use;
Step 3, under 630T pressure condition, adopt semidrying compression moulding to make adobe compound obtained for step 2, by qualified adobe through seasoning 24h, and dried adobe process 48 ~ 72h at 400 ~ 500 DEG C, obtain magnesia-spinel brick.
8. the preparation method of anti-thermal shock magnesia-spinel brick according to claim 7, is characterized in that: the press that in step 3, semidrying compression moulding adopts is any one in friction brick press, isostatic pressing machine or hydropress.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585322A (en) * | 2015-12-21 | 2016-05-18 | 洛阳利尔耐火材料有限公司 | Slag-corrosion-resistant magnesite-spinel brick and preparation method thereof |
| CN107663097A (en) * | 2017-09-28 | 2018-02-06 | 辽宁中镁高温材料有限公司 | A kind of high-performance densification composite titanium spinel brick and its manufacture method |
| CN108191439A (en) * | 2018-02-28 | 2018-06-22 | 攀钢冶金材料有限责任公司 | A kind of blast furnace slag high temperature cabonization electric furnace refractory brick and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613207A (en) * | 2008-12-31 | 2009-12-30 | 北京利尔高温材料股份有限公司 | A kind of low-carbon corundum spinelle brick for refined steel ladles and preparation method thereof |
| CN101973771A (en) * | 2010-09-29 | 2011-02-16 | 淄博市鲁中耐火材料有限公司 | Ferrous aluminum and magnesium system refractory raw material and preparation method thereof |
| CN102775156A (en) * | 2011-05-13 | 2012-11-14 | 宝山钢铁股份有限公司 | Unburned magnesium-aluminum spinel brick |
| CN102936142A (en) * | 2012-11-06 | 2013-02-20 | 河北联合大学 | Magnesia carbon brick added with manganese dioxide and preparation method thereof |
-
2015
- 2015-01-08 CN CN201510009015.9A patent/CN104649691B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101613207A (en) * | 2008-12-31 | 2009-12-30 | 北京利尔高温材料股份有限公司 | A kind of low-carbon corundum spinelle brick for refined steel ladles and preparation method thereof |
| CN101973771A (en) * | 2010-09-29 | 2011-02-16 | 淄博市鲁中耐火材料有限公司 | Ferrous aluminum and magnesium system refractory raw material and preparation method thereof |
| CN102775156A (en) * | 2011-05-13 | 2012-11-14 | 宝山钢铁股份有限公司 | Unburned magnesium-aluminum spinel brick |
| CN102936142A (en) * | 2012-11-06 | 2013-02-20 | 河北联合大学 | Magnesia carbon brick added with manganese dioxide and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105585322A (en) * | 2015-12-21 | 2016-05-18 | 洛阳利尔耐火材料有限公司 | Slag-corrosion-resistant magnesite-spinel brick and preparation method thereof |
| CN107663097A (en) * | 2017-09-28 | 2018-02-06 | 辽宁中镁高温材料有限公司 | A kind of high-performance densification composite titanium spinel brick and its manufacture method |
| CN107663097B (en) * | 2017-09-28 | 2020-10-16 | 辽宁中镁高温材料有限公司 | High-performance compact composite titanium spinel brick and manufacturing method thereof |
| CN108191439A (en) * | 2018-02-28 | 2018-06-22 | 攀钢冶金材料有限责任公司 | A kind of blast furnace slag high temperature cabonization electric furnace refractory brick and preparation method thereof |
| CN108191439B (en) * | 2018-02-28 | 2021-04-27 | 攀钢冶金材料有限责任公司 | Refractory brick for blast furnace slag high-temperature carbonization electric furnace and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN104649691B (en) | 2016-07-06 |
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