CN105924196B - A kind of castable for trough of copper-making converter and preparation method thereof - Google Patents
A kind of castable for trough of copper-making converter and preparation method thereof Download PDFInfo
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- CN105924196B CN105924196B CN201610304037.2A CN201610304037A CN105924196B CN 105924196 B CN105924196 B CN 105924196B CN 201610304037 A CN201610304037 A CN 201610304037A CN 105924196 B CN105924196 B CN 105924196B
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/66—Monolithic refractories or refractory mortars, including those whether or not containing clay
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- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/622—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/62204—Forming processes; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products using waste materials or refuse
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B15/00—Obtaining copper
- C22B15/0026—Pyrometallurgy
- C22B15/0028—Smelting or converting
- C22B15/003—Bath smelting or converting
- C22B15/0041—Bath smelting or converting in converters
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- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
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- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
- C04B2235/30—Constituents and secondary phases not being of a fibrous nature
- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3418—Silicon oxide, silicic acids, or oxide forming salts thereof, e.g. silica sol, fused silica, silica fume, cristobalite, quartz or flint
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- C04B2235/34—Non-metal oxides, non-metal mixed oxides, or salts thereof that form the non-metal oxides upon heating, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3427—Silicates other than clay, e.g. water glass
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- C04B2235/44—Metal salt constituents or additives chosen for the nature of the anions, e.g. hydrides or acetylacetonate
- C04B2235/447—Phosphates or phosphites, e.g. orthophosphate, hypophosphite
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Abstract
The present invention relates to a kind of castable for trough of copper-making converter and preparation method thereof.Its technical solution is：Using the sodium tripolyphosphate of the ferro-titanium slag of 35 ~ 60wt%, the electrofused mullite of 25 ~ 50wt%, the alumina powder of 2 ~ 5wt%, the fine silica powder of 2 ~ 5wt%, the aluminous cement of 2 ~ 5wt%, the kyanite of 2 ~ 8wt%, the explosion-proof fiber of 0.01 ~ 0.07wt% and 0.1 ~ 0.3wt% as raw material, mix 1 ~ 3min, the water of the additional 4 ~ 7wt% of raw material, 3 ~ 7min is mixed to get castable for trough of copper-making converter.The present invention has the characteristics that simple for process, production cost is low and raw material is reproducible；Prepared castable for trough of copper-making converter high volume stability is good, erosion-resisting characteristics is excellent, anti-permeability performance is excellent, normal temperature strength is big and service life is long, can be used for the copper ditch of copper converter.
Description
Technical field
The invention belongs to copper channel refractory pour material technical fields.It is poured into a mould more particularly to a kind of trough of copper-making converter
Material and preparation method thereof.
Background technology
In copper metallurgy production, copper water flows to via copper ditch out of stove and swings tundish.Copper ditch lining refractories are because of warp
It washed away, permeated and chemical erosion and temperature change dramatically and long-time high-temperature operation etc. are comprehensive makees by the high temperature of copper water and clinker
With and be easily damaged, therefore its must have higher intensity, good high volume stability, thermal shock resistance, permeability resistance and
Corrosion resistance.
Currently, the common refractory material of copper ditch is magnesian ramming mass and High-Alumina coating.It is magnesia in use
The permeability resistance of ramming mass is poor, frequent occurrence structure spalling phenomenon, and using effect is undesirable, and increasingly tight with magnesia resource
, the market price of magnesia is higher and higher, and the production cost of magnesian ramming mass also improves therewith.High-Alumina coating（Yang Zhenghong,
Ye Fangbao, Jia Quanli wait copper ditches SiC-Al2O3The development of matter castable and application [J] refractory materials, 2012,46 (6):
456-458）Copper easy to stick, dry slag in use need again to make after cleaning, repairing, baking after each copper
With safeguarding that intensity is big, cost is higher.
Invention content
The present invention is directed to overcome prior art defect, and it is an object of the present invention to provide a kind of simple for process, production cost is low and raw material
The preparation method of reproducible castable for trough of copper-making converter；The castable for trough of copper-making converter prepared with this method
High volume stability is good, erosion-resisting characteristics is excellent, anti-permeability performance is excellent, normal temperature strength is big and service life is long, can be used for
The copper ditch of copper converter.
To achieve the above object, the technical solution adopted by the present invention is：With ferro-titanium slag, the 25 ~ 50wt% of 35 ~ 60wt%
Electrofused mullite, the alumina powder of 2 ~ 5wt%, the fine silica powder of 2 ~ 5wt%, the aluminous cement of 2 ~ 5wt%, 2 ~
The sodium tripolyphosphate of the kyanite of 8wt%, the explosion-proof fiber of 0.01 ~ 0.07wt% and 0.1 ~ 0.3wt% is raw material, mixes 1 ~ 3min,
The water of the additional 4 ~ 7wt% of raw material, 3 ~ 7min is to get castable for trough of copper-making converter for mixing.
The main chemical compositions of the ferro-titanium slag are：Al2O3For 70 ~ 80wt%, TiO2For 8 ~ 16wt%, MgO is 1 ~
4wt%, CaO are 7 ~ 12wt%；The refractoriness of ferro-titanium slag>1790℃.
The grain composition of the ferro-titanium slag is：Granularity is that 8 ~ 5mm accounts for 17 ~ 27wt%, granularity be less than 5mm and more than etc.
16 ~ 25wt% is accounted in 3mm, granularity is less than 3mm and accounts for 30 ~ 40wt% more than or equal to 1mm, and granularity is less than 1mm and is more than or equal to
0.044mm accounts for 15 ~ 30wt%.
The main chemical compositions of the electrofused mullite are：Al2O3For 70 ~ 80wt%, SiO2For 20 ~ 30wt%；The electric smelting
The grain composition of mullite is：Granularity is that 1 ~ 0.088mm accounts for 50 ~ 60%, and granularity is less than 0.088mm and is accounted for more than or equal to 0.044mm
40~50mm%。
The Al of the alumina powder2O3Content >=98wt%, granularity are 3 ~ 5 μm.
The SiO of the fine silica powder2Content >=96wt%, granularity are 3 ~ 5 μm.
The Al of the aluminous cement2O3Content >=80wt%, CaO content ﹤ 20wt%；The granularity of the aluminous cement is
20~44μm。
The Al of the kyanite2O3Content is 55 ~ 65wt%, SiO2Content is 30 ~ 40wt%；The granularity of the kyanite is
0.1~0.125mm。
The Na of the sodium tripolyphosphate5P3O10Content >=98wt%, 0.5 ~ 1mm of granularity.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art：
The granule strength of the ferro-titanium slag that the present invention uses is big and low thermal expansion, and permanent Linear change rate is small when use,
The volume stability of castable for trough of copper-making converter is improved, strength at normal temperature and cold crushing strength also obtain
It significantly improves；Simultaneously at high temperature in use, TiO in ferro-titanium slag2It can also be with the SiO in copper ashes2React generation
High melting compound reduces erosion and infiltration of the copper ashes to castable for trough of copper-making converter, reduces copper ashes to copper metallurgy
Converter copper ditch castable washes away loss, to extend the service life of castable for trough of copper-making converter.
The ferro-titanium slag that the present invention uses belongs to trade waste, and resourceful, cheap and raw material is renewable, right
The utilization of ferro-titanium slag not only energy conservation and environmental protection, and be conducive to the sustainable development of refractory industry.In addition, the present invention couple is set
For no particular/special requirement, thus it is simple for process low with production cost.
Castable for trough of copper-making converter prepared by the present invention, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of heat
Through detection after processing：Bulk density is 2.9 ~ 3.05g/cm3With 2.85 ~ 2.95g/cm3, strength at normal temperature is 4 ~ 10MPa and 13
~ 20MPa, cold crushing strength are 20 ~ 30MPa and 55 ~ 75MPa；Under the conditions of 1450 DEG C × 3h permanent Linear change rate be -0.01 ~
0.1。
Therefore, the present invention has the characteristics that simple for process, production cost is low and raw material is reproducible；Prepared copper converter
Copper ditch is good with castable high volume stability, erosion-resisting characteristics is excellent, anti-permeability performance is excellent, normal temperature strength is big and uses
Long lifespan can be used for the copper ditch of copper converter.
Specific implementation mode
The invention will be further described With reference to embodiment, not to the limitation of its protection domain.
It is first that raw material Unify legislation involved in present embodiment is as follows to avoid repeating, in embodiment no longer
It repeats：
The main chemical compositions of the ferro-titanium slag are：Al2O3For 70 ~ 80wt%, TiO2For 8 ~ 16wt%, MgO is 1 ~
4wt%, CaO are 7 ~ 12wt%；The refractoriness of ferro-titanium slag>1790℃.
The grain composition of the ferro-titanium slag is：Granularity is that 8 ~ 5mm accounts for 17 ~ 27wt%, granularity be less than 5mm and more than etc.
16 ~ 25wt% is accounted in 3mm, granularity is less than 3mm and accounts for 30 ~ 40wt% more than or equal to 1mm, and granularity is less than 1mm and is more than or equal to
0.044mm accounts for 15 ~ 30wt%.
The main chemical compositions of the electrofused mullite are：Al2O3For 70 ~ 80wt%, SiO2For 20 ~ 30wt%；The electric smelting
The grain composition of mullite is：Granularity is that 1 ~ 0.088mm accounts for 50 ~ 60%, and granularity is less than 0.088mm and is accounted for more than or equal to 0.044mm
40~50mm%。
The Al of the alumina powder2O3Content >=98wt%, granularity are 3 ~ 5 μm.
The SiO of the fine silica powder2Content >=96wt%, granularity are 3 ~ 5 μm.
The Al of the aluminous cement2O3Content >=80wt%, CaO content ﹤ 20wt%；The granularity of the aluminous cement is
20~44μm。
The Al of the kyanite2O3Content is 55 ~ 65wt%, SiO2Content is 30 ~ 40wt%；The granularity of the kyanite is
0.1~0.125mm。
The Na of the sodium tripolyphosphate5P3O10Content >=98wt%, 0.5 ~ 1mm of granularity.
Embodiment 1
A kind of castable for trough of copper-making converter and preparation method thereof.With the ferro-titanium slag of 35 ~ 40wt%, 45 ~
The aluminium of the electrofused mullite of 50wt%, the alumina powder of 2 ~ 2.6wt%, the fine silica powder of 3.8 ~ 4.4wt%, 2 ~ 2.6wt%
Sour calcium cement, the kyanite of 6.8 ~ 8wt%, the explosion-proof fiber of 0.01 ~ 0.03wt% and 0.18 ~ 0.22wt% sodium tripolyphosphate be
Raw material, mixes 1 ~ 3min, the water of 4 ~ 6wt% of the additional raw material, and 3 ~ 7min of mixing pours into a mould to get trough of copper-making converter
Material.
Castable for trough of copper-making converter prepared by the present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of
Through detection after heat treatment：Bulk density is 2.90 ~ 2.95g/cm3With 2.85 ~ 2.89/cm3, strength at normal temperature be 4 ~ 8MPa and
13 ~ 17MPa, cold crushing strength are 22 ~ 28MPa and 68 ~ 75MPa；Under the conditions of 1450 DEG C × 3h permanent Linear change rate be 0.05 ~
0.1。
Embodiment 2
A kind of castable for trough of copper-making converter and preparation method thereof.With the ferro-titanium slag of 45 ~ 50wt%, 35 ~
The electrofused mullite of 40wt%, the alumina powder of 3.2 ~ 3.8wt%, the fine silica powder of 2 ~ 2.6wt%, 3.8 ~ 4.4wt%
The tripolyphosphate of aluminous cement, the kyanite of 5.6 ~ 6.8wt%, the explosion-proof fiber of 0.03 ~ 0.04wt% and 0.14 ~ 0.18wt%
Sodium is raw material, mixes 1 ~ 3min, the water of the additional 5 ~ 7wt% of raw material, 3 ~ 7min of mixing is to get trough of copper-making converter with pouring
Material feeding.
Castable for trough of copper-making converter prepared by the present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of
Through detection after heat treatment：Bulk density is 2.93 ~ 3.00g/cm3With 2.87 ~ 2.92g/cm3, strength at normal temperature is 7 ~ 10MPa
With 15 ~ 20MPa, cold crushing strength is 26 ~ 30MPa and 60 ~ 70MPa；Permanent Linear change rate is under the conditions of 1450 DEG C × 3h
0.01~0.06。
Embodiment 3
A kind of castable for trough of copper-making converter and preparation method thereof.With the ferro-titanium slag of 50 ~ 55wt%, 30 ~
The aluminium of the electrofused mullite of 35wt%, the alumina powder of 4.4 ~ 5wt%, the fine silica powder of 4.4 ~ 5wt%, 3.2 ~ 3.8wt%
Sour calcium cement, the kyanite of 2 ~ 3.2wt%, the explosion-proof fiber of 0.05 ~ 0.06wt% and 0.1 ~ 0.14wt% sodium tripolyphosphate be original
Material, mixes 1 ~ 3min, the water of the additional 4.5 ~ 6.5wt% of raw material, and 3 ~ 7min of mixing pours into a mould to get trough of copper-making converter
Material.
Castable for trough of copper-making converter prepared by the present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of
Through detection after heat treatment：Bulk density is 2.98 ~ 3.05g/cm3With 2.90 ~ 2.95g/cm3, strength at normal temperature be 5 ~ 9MPa and
14 ~ 18MPa, cold crushing strength are 20 ~ 24MPa and 55 ~ 62MPa；Permanent Linear change rate is -0.01 under the conditions of 1450 DEG C × 3h
~0.03。
Embodiment 4
A kind of castable for trough of copper-making converter and preparation method thereof.With the ferro-titanium slag of 40 ~ 45wt%, 40 ~
The electrofused mullite of 45wt%, the alumina powder of 2.6 ~ 3.2wt%, the fine silica powder of 2.6 ~ 3.2wt%, 4.4 ~ 5wt%
The sodium tripolyphosphate of aluminous cement, the kyanite of 3.2 ~ 4.4wt%, the explosion-proof fiber of 0.06 ~ 0.07wt% and 0.26 ~ 0.3wt%
For raw material, 1 ~ 3min is mixed, the water of the additional 5.5 ~ 7wt% of raw material, 3 ~ 7min of mixing is to get trough of copper-making converter with pouring
Material feeding.
Castable for trough of copper-making converter prepared by the present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of
Through detection after heat treatment：Bulk density is 2.92 ~ 3.04g/cm3With 2.89 ~ 2.94g/cm3, strength at normal temperature be 4 ~ 7MPa and
15 ~ 19MPa, cold crushing strength are 21 ~ 25MPa and 57 ~ 66MPa；Under the conditions of 1450 DEG C × 3h permanent Linear change rate be 0.01 ~
0.05。
Embodiment 5
A kind of castable for trough of copper-making converter and preparation method thereof.With the ferro-titanium slag of 55 ~ 60wt%, 25 ~
The electrofused mullite of 30wt%, the alumina powder of 3.8 ~ 4.4wt%, the fine silica powder of 3.2 ~ 3.8wt%, 2.6 ~ 3.2wt%
Aluminous cement, the kyanite of 4.4 ~ 5.6wt%, the explosion-proof fiber of 0.04 ~ 0.05wt% and 0.22 ~ 0.26wt% trimerization phosphorus
Sour sodium is raw material, mixes 1 ~ 3min, the water of the additional 4 ~ 6.5wt% of raw material, 3 ~ 7min is to get trough of copper-making converter for mixing
Use castable.
Castable for trough of copper-making converter prepared by the present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h under the conditions of
Through detection after heat treatment：Bulk density is 2.93 ~ 3.03g/cm3With 2.88 ~ 2.93g/cm3, strength at normal temperature is 6 ~ 10MPa
With 13 ~ 18MPa, cold crushing strength is 23 ~ 28MPa and 59 ~ 68MPa；Permanent Linear change rate is under the conditions of 1450 DEG C × 3h
0.06~0.09。
Present embodiment has following good effect compared with prior art：
The granule strength for the ferro-titanium slag that present embodiment uses is big and low thermal expansion, and permanent line becomes when use
Rate is small, improves the volume stability of castable for trough of copper-making converter, strength at normal temperature and cold crushing strength
Also it is significantly improved；Simultaneously at high temperature in use, TiO in ferro-titanium slag2It can also be with the SiO in copper ashes2Occur
Reaction generates high melting compound, reduces erosion and infiltration of the copper ashes to castable for trough of copper-making converter, reduces copper
Slag washes away loss to castable for trough of copper-making converter, to extend the use longevity of castable for trough of copper-making converter
Life.
The ferro-titanium slag that present embodiment uses belongs to trade waste, resourceful, cheap and raw material
It is renewable, to the utilization of ferro-titanium slag not only energy conservation and environmental protection, and be conducive to the sustainable development of refractory industry.In addition,
Present embodiment to equipment without particular/special requirement, therefore it is simple for process low with production cost.
Castable for trough of copper-making converter prepared by present embodiment, 110 DEG C × for 24 hours with 1300 DEG C × 3h
Under the conditions of be heat-treated after through detection：Bulk density is 2.9 ~ 3.05g/cm3With 2.85 ~ 2.95g/cm3, strength at normal temperature be 4 ~
10MPa and 13 ~ 20MPa, cold crushing strength are 20 ~ 30MPa and 55 ~ 75MPa；Permanent Linear change rate under the conditions of 1450 DEG C × 3h
It is -0.01 ~ 0.1.
Therefore, present embodiment has the characteristics that simple for process, production cost is low and raw material is reproducible；Prepared
Castable for trough of copper-making converter high volume stability is good, erosion-resisting characteristics is excellent, anti-permeability performance is excellent, normal temperature strength
Big and service life is long, can be used for the copper ditch of copper converter.
Claims (8)
1. a kind of preparation method of castable for trough of copper-making converter, it is characterised in that the preparation method is：With 35~
The dioxy of the ferro-titanium slag of 60wt%, the electrofused mullite of 25~50wt%, the alumina powder of 2~5wt%, 2~5wt%
SiClx micro mist, the aluminous cement of 2~5wt%, the kyanite of 2~8wt%, the explosion-proof fiber of 0.01~0.07wt% and 0.1
The sodium tripolyphosphate of~0.3wt% is raw material, mixes 1~3min, and the water of the additional 4~7wt% of raw material mixes 3~7min,
Up to castable for trough of copper-making converter；
The main chemical compositions of the ferro-titanium slag are：Al2O3For 70~80wt%, TiO2For 8~16wt%, MgO is 1~
4wt%, CaO are 7~12wt%；The refractoriness of ferro-titanium slag>1790℃；
The grain composition of the ferro-titanium slag is：Granularity is that 8~5mm accounts for 17~27wt%, and granularity is less than 5mm and is more than or equal to
3mm accounts for 16~25wt%, and granularity is less than 3mm and accounts for 30~40wt% more than or equal to 1mm, and granularity is less than 1mm and is more than or equal to
0.044mm accounts for 15~30wt%.
2. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the electric smelting is not
Carrying out the main chemical compositions of stone is：Al2O3For 70~80wt%, SiO2For 20~30wt%；The granular-grade of the electrofused mullite
With being：Granularity is that 1~0.088mm accounts for 50~60%, and granularity is less than 0.088mm and accounts for 40~50mm% more than or equal to 0.044mm.
3. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the aluminium oxide
The Al of micro mist2O3Content >=98wt%, granularity are 3~5 μm.
4. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the titanium dioxide
The SiO of silicon powder2Content >=96wt%, granularity are 3~5 μm.
5. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the calcium aluminate
The Al of cement2O3Content >=80wt%, CaO content ﹤ 20wt%；The granularity of the aluminous cement is 20~44 μm.
6. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the kyanite
Al2O3Content is 55~65wt%, SiO2Content is 30~40wt%；The granularity of the kyanite is 0.1~0.125mm.
7. the preparation method of castable for trough of copper-making converter according to claim 1, it is characterised in that the trimerization phosphorus
The Na of sour sodium5P3O10Content >=98wt%, 0.5~1mm of granularity.
8. a kind of castable for trough of copper-making converter, it is characterised in that the castable for trough of copper-making converter is according to power
Profit requires the copper converter prepared by the preparation method of the castable for trough of copper-making converter described in any one of 1~7 to go out
Copper ditch castable.
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| CN107311677B (en) * | 2017-07-12 | 2020-04-24 | 武汉科技大学 | Calcium titanoaluminate-mullite complex phase refractory material and preparation method thereof |
| CN109232005A (en) * | 2018-10-30 | 2019-01-18 | 浙江锦诚新材料股份有限公司 | Kilneye castable after a kind of cement rotary kiln |
| CN110143823A (en) * | 2019-07-05 | 2019-08-20 | 巩义市兴嘉耐火材料有限公司 | High-performance pouring materialfor steel ladle |
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| CN101792294A (en) * | 2010-03-30 | 2010-08-04 | 武汉钢铁(集团)公司 | Light thermal-shield refractory castable |
| CN105174980A (en) * | 2015-08-24 | 2015-12-23 | 武汉科技大学 | Fireproof castable for producing blast furnace iron runners and preparation method thereof |
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|---|---|---|---|---|
| CN101792294A (en) * | 2010-03-30 | 2010-08-04 | 武汉钢铁(集团)公司 | Light thermal-shield refractory castable |
| CN105174980A (en) * | 2015-08-24 | 2015-12-23 | 武汉科技大学 | Fireproof castable for producing blast furnace iron runners and preparation method thereof |
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| 出铜沟用SiC-Al2O3质浇注料的研制与应用;杨政宏等;《耐火材料》;20121231;第46卷(第6期);456-458、465 * |
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Application publication date: 20160907 Assignee: Wuhan Chuanfu metal materials Co., Ltd Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2020420000002 Denomination of invention: A kind of castable for copper channel of copper converter and its preparation method Granted publication date: 20180821 License type: Common License Record date: 20201021 |
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