CN104030710B - Water-based converter bedding face repairing material and using method thereof - Google Patents
Water-based converter bedding face repairing material and using method thereof Download PDFInfo
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- CN104030710B CN104030710B CN201410311201.3A CN201410311201A CN104030710B CN 104030710 B CN104030710 B CN 104030710B CN 201410311201 A CN201410311201 A CN 201410311201A CN 104030710 B CN104030710 B CN 104030710B
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Abstract
The invention discloses a water-based converter bedding face repairing material and a using method thereof. The repairing material is composed of a component A and a component B. The component A comprises, by weight, 40-65 percent of magnesia particle, 10-20 percent of magnesium forsterite particle, 15-25 percent of magnesia fine powder, 5-15 percent of magnesium oxide micro-powder, 2-5 percent of silicon carbide micro-powder, 1-3 percent of fused quartz fine powder, 0.5-2 percent of quartz fine powder, 0.5-2 percent of silicon micro-powder, 0.2-1.5 percent of pure calcium aluminate cement and 0.5-2.5 percent of alpha-Al2O3 micro-powder, and further comprises 0.05-0.15 percent of organic fiber, 0.05-0.15 percent of nitrate and 0.05-0.15 percent of polycarboxylate superplasticizer, and mixing is carried out. The component B is formed by mixing hydrophilic modification organic silicon and water according to the mass ratio of 1: (8-10). When the water-based converter bedding face repairing material is used, the component A and the component B are mixed according to the mass ratio of 1: (0.06-0.12), stirred into a plastic flowing state, loaded into a hopper and put into a converter, and the converter is shaken quickly. The water-based converter bedding face repairing material has the advantages of being good in self-flowing property, short in sintering time, slag corrosion resistant, long in service life and friendly to the environment.
Description
Technical field
The invention belongs to repair material technical field.Be specifically related to a kind of water base Large face repair material of converter and using method thereof.
Background technology
Converter lining life is the important technico-economical comparison of in converter steelmaking, is the important factor that steelworks plays benefit.Improve the production efficiency that converter lining life can improve converter, reduce refractory consumption.Along with the penetration and promotion of converter lining protection technology by slag splashing, converter lining life is improved, and can reach about 40,000 heats.But after application Technology of Slag Splashingfor Furnace Maintenance, the erosion condition of converter lining also there occurs respective change, restriction furnace life the principal element that improves corroded from the position such as furnace crown, gudgeon that too fast to become large face erosion before and after converter too fast.Therefore, strengthening large face before and after converter and safeguard, reduce the damage of furnace lining, being of great significance for improving converter lining life tool further.
At present, Large face repair material of converter mainly contains two large classes: 1) carbon tying is closed containing carbonaceous repair material: it mainly adopts tar, pitch or resin etc. to make bonding agent.From result of use, this large repair material temperature flowing is good, resistant to corrosion and long service life, but sintering time is long, and smoke clogging during construction and discharge a large amount of toxic and harmful, environmental pollution is serious; 2) wet method water system is in conjunction with MgO based mending materials: such large repair material sintering time is relatively short, environmentally safe, can in time, quick fettling, but this large repair material and furnace lining material poor adhesion, non-resistant to corrosion and not resistance to erosion, work-ing life relatively short.
Summary of the invention
The present invention is intended to overcome prior art defect, the water base Large face repair material of converter that object is to provide a kind of environmental friendliness, high temperature self drainage is good, sintering velocity is fast, tack is excellent, compact structure, resistance to erosion, resistance to slag action and life-span are long and using method thereof.
For realizing above-mentioned task, the technical solution adopted in the present invention is: described water base Large face repair material of converter is made up of first component and component B, wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 40 ~ 65wt%, 10 ~ 20wt%, 15 ~ 25wt%, 5 ~ 15wt%, 2 ~ 5wt%, 1 ~ 3wt%, 0.5 ~ 2wt%, the silicon powder of 0.5 ~ 2wt%, the pure calcium aluminate cement of 0.2 ~ 1.5wt% and 0.5 ~ 2.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.05 ~ 0.15wt%, the nitrate of 0.05 ~ 0.15wt% and 0.05 ~ 0.1wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (8 ~ 10) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
The content of MgO >95wt% of described magnesia particle, particle diameter is 3 ~ 0.088mm.
The main chemical compositions of described forsterite particle is: content of MgO >40wt%, SiO
2content <40wt%, Fe
2o
3content <10wt%; The particle diameter of forsterite particle is 1 ~ 0.088mm.
The content of MgO >98wt% of described magnesia powder, particle diameter <0.088mm.
The content of MgO >99wt% of described fine magnesium oxide micro-powder, particle diameter <0.001mm.
The SiC content >98.5wt% of described silicon carbide micro-powder, particle diameter <0.001mm.
The SiO of described fused quartz fine powder
2content >99wt%, particle diameter <0.01mm.
The SiO of described quartzy fine powder
2content >99wt%, particle diameter <0.01mm.
Described silicon powder SiO
2content is >94wt%, particle diameter <0.001mm.
The main chemical compositions of described pure calcium aluminate cement is: Al
2o
3content is 50 ~ 60wt%, SiO
2content < 8wt%, Fe
2o
3content < 2.5wt%; The particle diameter <0.01mm of pure calcium aluminate cement.
Described α-Al
2o
3the Al of micro mist
2o
3content >99wt%, particle diameter <0.001mm.
Described nitrate is more than one in SODIUMNITRATE, saltpetre, ammonium nitrate and nitrocalcite.
The using method of described water base Large face repair material of converter: by first component and component B in mass ratio 1 ︰ (0.06 ~ 0.12) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Owing to adopting technique scheme, the present invention compared with prior art has following positively effect:
The present invention adopt hydrophilic modifying silicone covering to be disperseed by polycarboxylate water-reducer water molecules, polycarboxylate water-reducer meeting simultaneously and water form high dispersive small bubbles, polydispersion phase successive substrates is mixed into nitrate, fused quartz and quartz, form the reasonable release profiles of the coated water energy of multi-level ladder fusing point mixed phase, rely on inner reasonably " self-excited oscillation " that material is at high temperature flow automatically rapidly to sprawl, improve dispersiveness and the erosion resistance of the micro mists such as silicon carbide, then the SiO such as MgO source and silicon powder such as fine magnesium oxide micro-powder simultaneously
2source is at high temperature reacted and is generated forsterite fast, and the sintering character of material and erosion-resisting characteristics excellence, can combine with former large the furnace lining of converter very well, improve the life-span of repair material.
Water base Large face repair material of converter sintering time obtained by the present invention is short, work-ing life >25 time.
Therefore, the repair material prepared by the present invention has that high temperature self drainage is good, sintering time is short, cohesive strength is high, resistance to erosion, resistance to slag action, life-span are long and eco-friendly feature.
Embodiment
Below in conjunction with embodiment, the invention will be further described, the restriction not to its protection domain.
For avoiding repetition, first by as follows for the technical parameter Unify legislation of the raw material involved by this embodiment, repeat no more in embodiment:
The content of MgO >95wt% of described magnesia particle, particle diameter is 3 ~ 0.088mm.
The main chemical compositions of described forsterite particle is: content of MgO >40wt%, SiO
2content <40wt%, Fe
2o
3content <10wt%; The particle diameter of forsterite particle is 1 ~ 0.088mm.
The content of MgO >98wt% of described magnesia powder, particle diameter <0.088mm.
The content of MgO >99wt% of described fine magnesium oxide micro-powder, particle diameter <0.001mm.
The SiC content >98.5wt% of described silicon carbide micro-powder, particle diameter <0.001mm.
The SiO of described fused quartz fine powder
2content >99wt%, particle diameter <0.01mm.
The SiO of described quartzy fine powder
2content >99wt%, particle diameter <0.01mm.
Described silicon powder SiO
2content is >94wt%, particle diameter <0.001mm.
The main chemical compositions of described pure calcium aluminate cement is: Al
2o
3content is 50 ~ 60wt%, SiO
2content < 8wt%, Fe
2o
3content < 2.5wt%; The particle diameter <0.01mm of pure calcium aluminate cement.
Described α-Al
2o
3the Al of micro mist
2o
3content >99wt%, particle diameter <0.001mm.
embodiment 1
A kind of water base Large face repair material of converter and using method thereof.Described water base Large face repair material of converter is made up of first component and component B, wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 40 ~ 50wt%, 15 ~ 20wt%, 15 ~ 20wt%, 10 ~ 15wt%, 3 ~ 5wt%, 2 ~ 3wt%, 0.5 ~ 1.5wt%, the silicon powder of 1.5 ~ 2wt%, the pure calcium aluminate cement of 0.2 ~ 1.0wt% and 0.5 ~ 1.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.05 ~ 0.10wt%, the nitrate of 0.05 ~ 0.10wt% and 0.08 ~ 0.1wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (9.5 ~ 10) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
Nitrate described in the present embodiment is SODIUMNITRATE.
The using method of the water base Large face repair material of converter described in the present embodiment: by first component and component B in mass ratio 1 ︰ (0.06 ~ 0.08) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Water base Large face repair material of converter sintering time obtained by the present embodiment 1 is short, work-ing life >28 time.
embodiment 2
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is SODIUMNITRATE and saltpetre, and all the other are with embodiment 1.
Water base Large face repair material of converter sintering time obtained by the present embodiment 2 is short, work-ing life >28 time.
embodiment 3
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is SODIUMNITRATE, saltpetre and ammonium nitrate, and all the other are with embodiment 1.
Water base Large face repair material of converter sintering time obtained by the present embodiment 3 is short, work-ing life >28 time.
embodiment 4
A kind of water base Large face repair material of converter and using method thereof.Described water base Large face repair material of converter is made up of first component and component B.Wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 45 ~ 55wt%, 10 ~ 15wt%, 20 ~ 25wt%, 5 ~ 10wt%, 3 ~ 4wt%, 1 ~ 2wt%, 1.5 ~ 2wt%, the silicon powder of 1 ~ 2wt%, the pure calcium aluminate cement of 1 ~ 1.5wt% and 2 ~ 2.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.05 ~ 0.10wt%, the nitrate of 0.05 ~ 0.10wt% and 0.07 ~ 0.09wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (8 ~ 8.5) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
Nitrate described in the present embodiment is saltpetre.
The using method of the water base Large face repair material of converter described in the present embodiment: by first component and component B in mass ratio 1 ︰ (0.08 ~ 0.10) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Water base Large face repair material of converter sintering time obtained by the present embodiment 4 is short, work-ing life >30 time.
embodiment 5
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is saltpetre and ammonium nitrate, and all the other are with embodiment 4.
Water base Large face repair material of converter sintering time obtained by the present embodiment 5 is short, work-ing life >30 time.
embodiment 6
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is saltpetre, ammonium nitrate and nitrocalcite, and all the other are with embodiment 4.
Water base Large face repair material of converter sintering time obtained by the present embodiment 6 is short, work-ing life >30 time.
embodiment 7
A kind of water base Large face repair material of converter and using method thereof.Described water base Large face repair material of converter is made up of first component and component B, wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 50 ~ 60wt%, 10 ~ 15wt%, 15 ~ 20wt%, 5 ~ 10wt%, 2 ~ 3wt%, 1 ~ 1.5wt%, 1 ~ 2wt%, the silicon powder of 0.5 ~ 1.5wt%, the pure calcium aluminate cement of 0.8 ~ 1.2wt% and 1.5 ~ 2.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.10 ~ 0.15wt%, the nitrate of 0.10 ~ 0.15wt% and 0.06 ~ 0.08wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (8.5 ~ 9) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
Nitrate described in the present embodiment is ammonium nitrate.
The using method of the water base Large face repair material of converter described in the present embodiment: by first component and component B in mass ratio 1 ︰ (0.10 ~ 0.12) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Water base Large face repair material of converter sintering time obtained by the present embodiment 7 is short, work-ing life >25 time.
embodiment 8
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is ammonium nitrate and nitrocalcite, and all the other are with embodiment 7.
Water base Large face repair material of converter sintering time obtained by the present embodiment 8 is short, work-ing life >25 time.
embodiment 9
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is SODIUMNITRATE, ammonium nitrate and nitrocalcite, and all the other are with embodiment 7.
Water base Large face repair material of converter sintering time obtained by the present embodiment 9 is short, work-ing life >25 time.
embodiment 10
A kind of water base Large face repair material of converter and using method thereof.Described water base Large face repair material of converter is made up of first component and component B, wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 55 ~ 65wt%, 10 ~ 15wt%, 15 ~ 20wt%, 5 ~ 10wt%, 2 ~ 3wt%, 1 ~ 1.5wt%, 0.5 ~ 1wt%, the silicon powder of 0.5 ~ 1wt%, the pure calcium aluminate cement of 0.2 ~ 0.4wt% and 0.5 ~ 1wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.10 ~ 0.15wt%, the nitrate of 0.10 ~ 0.15wt% and 0.05 ~ 0.06wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (9 ~ 9.5) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
Nitrate described in the present embodiment is nitrocalcite.
The using method of the water base Large face repair material of converter described in the present embodiment: by first component and component B in mass ratio 1 ︰ (0.06 ~ 0.10) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Water base Large face repair material of converter sintering time obtained by the present embodiment 10 is short, work-ing life >32 time.
embodiment 11
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is nitrocalcite and saltpetre, and all the other are with embodiment 10.
Water base Large face repair material of converter sintering time obtained by the present embodiment 11 is short, work-ing life >32 time.
embodiment 12
A kind of water base Large face repair material of converter and using method thereof.The present embodiment is except nitrate is SODIUMNITRATE, saltpetre and nitrocalcite, and all the other are with embodiment 10.
Water base Large face repair material of converter sintering time obtained by the present embodiment 12 is short, work-ing life >32 time.
embodiment 13
A kind of water base Large face repair material of converter and using method thereof.Described water base Large face repair material of converter is made up of first component and component B, wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 40 ~ 50wt%, 15 ~ 20wt%, 15 ~ 20wt%, 10 ~ 15wt%, 3 ~ 5wt%, 2 ~ 3wt%, 0.5 ~ 1.5wt%, the silicon powder of 1.5 ~ 2wt%, the pure calcium aluminate cement of 0.2 ~ 1.0wt% and 0.5 ~ 1.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.05 ~ 0.10wt%, the nitrate of 0.05 ~ 0.10wt% and 0.08 ~ 0.1wt%, mixes 1 ~ 3 minute, packs for subsequent use.
Component B is 1 ︰ (9.5 ~ 10) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use.
Nitrate described in the present embodiment is SODIUMNITRATE, saltpetre, ammonium nitrate and nitrocalcite.
The using method of the water base Large face repair material of converter described in the present embodiment: by first component and component B in mass ratio 1 ︰ (0.06 ~ 0.08) prepare burden, be stirred to stream and mould shape, load hopper to drop in Converter, shake converter body rapidly, described repair material is paved with and repairs position.
Water base Large face repair material of converter sintering time obtained by the present embodiment 13 is short, work-ing life >26 time.
This embodiment compared with prior art has following positively effect:
This embodiment adopt hydrophilic modifying silicone covering to be disperseed by polycarboxylate water-reducer water molecules, polycarboxylate water-reducer meeting simultaneously and water form high dispersive small bubbles, polydispersion phase successive substrates is mixed into nitrate, fused quartz and quartz, form the reasonable release profiles of the coated water energy of multi-level ladder fusing point mixed phase, rely on inner reasonably " self-excited oscillation " that material is at high temperature flow automatically rapidly to sprawl, improve dispersiveness and the erosion resistance of the micro mists such as silicon carbide, then the SiO such as MgO source and silicon powder such as fine magnesium oxide micro-powder simultaneously
2source is at high temperature reacted and is generated forsterite fast, and the sintering character of material and erosion-resisting characteristics excellence, can combine with former large the furnace lining of converter very well, improve the life-span of repair material.
Water base Large face repair material of converter sintering time obtained by this embodiment is short, work-ing life >25 time.
Therefore, the repair material prepared by this embodiment has that high temperature self drainage is good, sintering time is short, cohesive strength is high, resistance to erosion, resistance to slag action, life-span are long and eco-friendly feature.
Claims (12)
1. a water base Large face repair material of converter, is characterized in that described water base Large face repair material of converter is made up of first component and component B, and the mass ratio of first component and component B is 1 ︰ (0.06 ~ 0.12), wherein:
First component is with the α-Al of the quartzy fine powder of the fused quartz fine powder of the silicon carbide micro-powder of the fine magnesium oxide micro-powder of the magnesia powder of the forsterite particle of the magnesia particle of 40 ~ 65wt%, 10 ~ 20wt%, 15 ~ 25wt%, 5 ~ 15wt%, 2 ~ 5wt%, 1 ~ 3wt%, 0.5 ~ 2wt%, the silicon powder of 0.5 ~ 2wt%, the pure calcium aluminate cement of 0.2 ~ 1.5wt% and 0.5 ~ 2.5wt%
2o
3micro mist is raw material, then the polycarboxylate water-reducer of the additional described organic fibre of raw material 0.05 ~ 0.15wt%, the nitrate of 0.05 ~ 0.15wt% and 0.05 ~ 0.1wt%, mixes 1 ~ 3 minute, packs for subsequent use;
Component B is 1 ︰ (8 ~ 10) mixing in mass ratio by hydrophilic modifying organosilicon and water, encapsulates for subsequent use;
Described nitrate is more than one in SODIUMNITRATE, saltpetre, ammonium nitrate and nitrocalcite.
2. water base Large face repair material of converter according to claim 1, is characterized in that the content of MgO >95wt% of described magnesia particle, and particle diameter is 3 ~ 0.088mm.
3. water base Large face repair material of converter according to claim 1, is characterized in that the main chemical compositions of described forsterite particle is: content of MgO >40wt%, SiO
2content <40wt%, Fe
2o
3content <10wt%; The particle diameter of forsterite particle is 1 ~ 0.088mm.
4. the water base Large face repair material of converter according to claim l, is characterized in that the content of MgO >98wt% of described magnesia powder, particle diameter <0.088mm.
5. the water base Large face repair material of converter according to claim l, is characterized in that the content of MgO >99wt% of described fine magnesium oxide micro-powder, particle diameter <0.001mm.
6. the water base Large face repair material of converter according to claim l, is characterized in that the SiC content >98.5wt% of described silicon carbide micro-powder, particle diameter <0.001mm.
7. the water base Large face repair material of converter according to claim l, is characterized in that the SiO of described fused quartz fine powder
2content >99wt%, particle diameter <0.01mm.
8. the water base Large face repair material of converter according to claim l, is characterized in that the SiO of described quartzy fine powder
2content >99wt%, particle diameter <0.01mm.
9. the water base Large face repair material of converter according to claim l, is characterized in that described silicon powder SiO
2content is >94wt%, particle diameter <0.001mm.
10. the water base Large face repair material of converter according to claim l, is characterized in that the main chemical compositions of described pure calcium aluminate cement is: Al
2o
3content is 50 ~ 60wt%, SiO
2content < 8wt%, Fe
2o
3content < 2.5wt%; The particle diameter <0.01mm of pure calcium aluminate cement.
11. water base Large face repair material of converter according to claim l, is characterized in that described α-Al
2o
3the Al of micro mist
2o
3content >99wt%, particle diameter <0.001mm.
The using method of 12. water base Large face repair material of converter as claimed in claim 1, when it is characterized in that using water base Large face repair material of converter, first component and component B are prepared burden in mass ratio, be stirred to stream and mould shape, loading hopper drops in Converter, rapid shake converter body, makes described repair material be paved with and repairs position.
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| CN201410311201.3A CN104030710B (en) | 2014-07-02 | 2014-07-02 | Water-based converter bedding face repairing material and using method thereof |
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|---|---|---|---|
| CN201410311201.3A CN104030710B (en) | 2014-07-02 | 2014-07-02 | Water-based converter bedding face repairing material and using method thereof |
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| CN106116608B (en) * | 2016-06-23 | 2018-09-18 | 河南瑞泰耐火材料科技有限公司 | A kind of non-ferrous smelting furnace forsterite-carbon gunning refractory |
| CN108440002A (en) * | 2018-04-04 | 2018-08-24 | 武汉科技大学 | A kind of big face material for repairing of converter working lining and preparation method thereof |
| CN110407594A (en) * | 2019-08-20 | 2019-11-05 | 中冶武汉冶金建筑研究院有限公司 | A kind of high temperature melting furnace material for repairing |
| CN111662089A (en) * | 2020-07-05 | 2020-09-15 | 郑州瑞泰耐火科技有限公司 | High-temperature-resistant self-sintered nano plate and preparation method thereof |
| CN112225542B (en) * | 2020-09-30 | 2022-03-22 | 鞍钢股份有限公司 | Method for prolonging service life of KR stirring paddle |
| CN116751067A (en) * | 2023-06-21 | 2023-09-15 | 武汉科技大学 | Water-based large fabric for converter and preparation method thereof |
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| CN101913893B (en) * | 2010-09-07 | 2012-08-22 | 河北理工大学 | Hot patching material for large face of converter |
| CN102584281A (en) * | 2012-01-19 | 2012-07-18 | 北京炜润达冶金材料有限公司 | Hydration-resistant hot-state mending material for steelmaking converter and preparation method thereof |
| CN103449826B (en) * | 2013-08-21 | 2015-02-25 | 长兴攀江冶金材料有限公司 | Preparation method of gunning mix for kiln repair |
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