CN105924196A - Castable for copper outlet ditch of copper converter and preparing method thereof - Google Patents
Castable for copper outlet ditch of copper converter and preparing method thereof Download PDFInfo
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- CN105924196A CN105924196A CN201610304037.2A CN201610304037A CN105924196A CN 105924196 A CN105924196 A CN 105924196A CN 201610304037 A CN201610304037 A CN 201610304037A CN 105924196 A CN105924196 A CN 105924196A
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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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- C04B2235/3427—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 invention relates to a castable for a copper outlet ditch of a copper converter and a preparing method thereof. According to the technical scheme, 35-60 wt% of ferro-titanium slag, 25-50 wt% of electro-fused mullite, 2-5 wt% of alumina micropowder, 2-5 wt% of silicon dioxide micropowder, 2-5 wt% of calcium aluminate cement, 2-8 wt% of kyanite, 0.01-0.07 wt% of anti-explosion fiber and 0.1-0.3 wt% of sodium tripolyphosphate are mixed for 1-3 min, water accounting for 4-7% of the total weight of the raw materials is added too and mixed with the raw materials for 3-7 min, and then the castable is obtained. The castable for the copper outlet ditch of the copper converter and the preparing method thereof have the advantages that process is simple, production cost is low, and raw materials are renewable; the castable has high high-temperature volume stability, excellent erosion resistance, excellent anti-permeability performance, high normal-temperature strength and long service life and can be applied to the copper outlet ditch of the copper converter.
Description
Technical field
The invention belongs to copper channel refractory pour material technical field.It is specifically related to a kind of trough of copper-making converter cast
Material and preparation method thereof.
Background technology
In copper metallurgy produces, copper water flows to swing tundish via copper ditch in stove.Copper ditch lining refractories is because of warp
Washed away by the high temperature of copper water and slag, permeate and chemical erosion and temperature drastically changes and long-time work in hot environment etc. is comprehensive makees
With and be easily damaged, therefore it must have higher intensity, good high volume stability, thermal shock resistance, permeability resistance and
Corrosion resistance.
At present, the refractory material that copper ditch is conventional is magnesian ramming mass and High-Alumina coating.The most magnesia
The permeability resistance of ramming mass is poor, frequent recurring structure peeling phenomenon, and using effect is undesirable, and the tightest along with magnesia resource
, the market price of magnesia is more and more higher, and the production cost of magnesian ramming mass improves the most therewith.High-Alumina coating (Yang Zhenghong,
Ye Fangbao, Jia Quanli, etc. copper ditch SiC-Al2O3The development of matter castable and application [J]. refractory material, 2012,46 (6):
456-458) copper the most easy to stick, dry slag, needs after each copper could again make after clearing up, repair, toasting
With, safeguard that intensity is big, relatively costly.
Summary of the invention
It is contemplated that overcome prior art defect, it is therefore intended that technique is simple, production cost is low and raw material to provide one
The preparation method of reproducible castable for trough of copper-making converter；The castable for trough of copper-making converter prepared by the method
High volume good stability, erosion-resisting characteristics are 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.
For achieving the above object, the technical solution used in 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 additional described raw material 4 ~ 7wt%, mixes 3 ~ 7min, obtains castable for trough of copper-making converter.
The main chemical compositions of described ferro-titanium slag is: Al2O3It is 70 ~ 80wt%, TiO2Be 8 ~ 16wt%, MgO be 1 ~
4wt%, CaO are 7 ~ 12wt%；The refractoriness of ferro-titanium slag > 1790 DEG C.
The grain composition of described ferro-titanium slag is: granularity is that 8 ~ 5mm accounts for 17 ~ 27wt%, and granularity is less than 5mm and is more than
Accounting for 16 ~ 25wt% in 3mm, granularity accounts for 30 ~ 40wt% less than 3mm and 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 described electrofused mullite is: Al2O3It is 70 ~ 80wt%, SiO2It is 20 ~ 30wt%；Described electric smelting
The grain composition of mullite is: granularity is that 1 ~ 0.088mm accounts for 50 ~ 60%, and granularity accounts for less than 0.088mm and more than or equal to 0.044mm
40~50mm%。
The Al of described alumina powder2O3Content >=98wt%, granularity is 3 ~ 5 μm.
The SiO of described fine silica powder2Content >=96wt%, granularity is 3 ~ 5 μm.
The Al of described aluminous cement2O3Content >=80wt%, CaO content 20wt%；The granularity of described aluminous cement is
20~44μm。
The Al of described kyanite2O3Content is 55 ~ 65wt%, SiO2Content is 30 ~ 40wt%；The granularity of described kyanite is
0.1~0.125mm。
The Na of described sodium tripolyphosphate5P3O10Content >=98wt%, granularity 0.5 ~ 1mm.
Owing to using technique scheme, the present invention compared with prior art has a following good effect:
The granule strength of the ferro-titanium slag that the present invention uses is big and coefficient of thermal expansion is low, and during use, permanent line rate of change is little, improves
The volume stability of castable for trough of copper-making converter, its strength at normal temperature and cold crushing strength have also been obtained substantially
Improve；When at high temperature using simultaneously, the TiO in ferro-titanium slag2Can also be with the SiO in copper ashes2React generation Gao Rong
Point compound, reduces copper ashes to the erosion of castable for trough of copper-making converter and infiltration, decreases copper ashes to copper converter
Copper ditch castable wash away loss, thus 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 aboundresources, cheap and raw material is renewable, right
The utilization of ferro-titanium slag not only energy-conserving and environment-protective, and the sustainable development of beneficially refractory industry.It addition, the present invention is to setting
Standby without particular/special requirement, therefore technique is simple and production cost is low.
Castable for trough of copper-making converter prepared by the present invention, heat under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
Through detection after process: 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 is 20 ~ 30MPa and 55 ~ 75MPa；Under the conditions of 1450 DEG C × 3h permanent line rate of change be-0.01 ~
0.1。
Therefore, the present invention has that technique is simple, production cost is low and the reproducible feature of raw material；Prepared copper converter
Copper ditch castable high volume good stability, erosion-resisting characteristics is excellent, anti-permeability performance is excellent, normal temperature strength is big and use
Life-span is long, can be used for the copper ditch of copper converter.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the invention will be further described, not the restriction to its protection domain.
For avoiding repeating, first by as follows, in embodiment no longer for raw material Unify legislation involved in this detailed description of the invention
Repeat:
The main chemical compositions of described ferro-titanium slag is: Al2O3It is 70 ~ 80wt%, TiO2Be 8 ~ 16wt%, MgO be 1 ~ 4wt%,
CaO is 7 ~ 12wt%；The refractoriness of ferro-titanium slag > 1790 DEG C.
The grain composition of described ferro-titanium slag is: granularity is that 8 ~ 5mm accounts for 17 ~ 27wt%, and granularity is less than 5mm and is more than
Accounting for 16 ~ 25wt% in 3mm, granularity accounts for 30 ~ 40wt% less than 3mm and 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 described electrofused mullite is: Al2O3It is 70 ~ 80wt%, SiO2It is 20 ~ 30wt%；Described electric smelting
The grain composition of mullite is: granularity is that 1 ~ 0.088mm accounts for 50 ~ 60%, and granularity accounts for less than 0.088mm and more than or equal to 0.044mm
40~50mm%。
The Al of described alumina powder2O3Content >=98wt%, granularity is 3 ~ 5 μm.
The SiO of described fine silica powder2Content >=96wt%, granularity is 3 ~ 5 μm.
The Al of described aluminous cement2O3Content >=80wt%, CaO content 20wt%；The granularity of described aluminous cement is
20~44μm。
The Al of described kyanite2O3Content is 55 ~ 65wt%, SiO2Content is 30 ~ 40wt%；The granularity of described kyanite is
0.1~0.125mm。
The Na of described sodium tripolyphosphate5P3O10Content >=98wt%, granularity 0.5 ~ 1mm.
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 ~ 50wt%
Electrofused mullite, the alumina powder of 2 ~ 2.6wt%, the fine silica powder of 3.8 ~ 4.4wt%, the calcium aluminate water of 2 ~ 2.6wt%
The sodium tripolyphosphate of mud, the kyanite of 6.8 ~ 8wt%, the explosion-proof fiber of 0.01 ~ 0.03wt% and 0.18 ~ 0.22wt% is raw material, mixed
Close 1 ~ 3min, the water of 4 ~ 6wt% of additional described raw material, mix 3 ~ 7min, obtain castable for trough of copper-making converter.
Castable for trough of copper-making converter prepared by the present embodiment, under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
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 is 22 ~ 28MPa and 68 ~ 75MPa；Under the conditions of 1450 DEG C × 3h permanent line rate of change 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 ~ 40wt%
Electrofused mullite, the alumina powder of 3.2 ~ 3.8wt%, the fine silica powder of 2 ~ 2.6wt%, the calcium aluminate water of 3.8 ~ 4.4wt%
The sodium tripolyphosphate of mud, the kyanite of 5.6 ~ 6.8wt%, the explosion-proof fiber of 0.03 ~ 0.04wt% and 0.14 ~ 0.18wt% is raw material,
Mixing 1 ~ 3min, the water of additional described raw material 5 ~ 7wt%, mix 3 ~ 7min, obtain castable for trough of copper-making converter.
Castable for trough of copper-making converter prepared by the present embodiment, under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
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；Under the conditions of 1450 DEG C × 3h, permanent line rate of change is
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 ~ 35wt%
Electrofused mullite, the alumina powder of 4.4 ~ 5wt%, the fine silica powder of 4.4 ~ 5wt%, the calcium aluminate water of 3.2 ~ 3.8wt%
The sodium tripolyphosphate of mud, the kyanite of 2 ~ 3.2wt%, the explosion-proof fiber of 0.05 ~ 0.06wt% and 0.1 ~ 0.14wt% is raw material, mixed
Close 1 ~ 3min, the water of additional described raw material 4.5 ~ 6.5wt%, mix 3 ~ 7min, obtain castable for trough of copper-making converter.
Castable for trough of copper-making converter prepared by the present embodiment, under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
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 is 20 ~ 24MPa and 55 ~ 62MPa；Under the conditions of 1450 DEG C × 3h, permanent line rate of change is-0.01
~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 ~ 45wt%
Electrofused mullite, the alumina powder of 2.6 ~ 3.2wt%, the fine silica powder of 2.6 ~ 3.2wt%, the calcium aluminate water of 4.4 ~ 5wt%
The sodium tripolyphosphate of mud, the kyanite of 3.2 ~ 4.4wt%, the explosion-proof fiber of 0.06 ~ 0.07wt% and 0.26 ~ 0.3wt% is raw material,
Mixing 1 ~ 3min, the water of additional described raw material 5.5 ~ 7wt%, mix 3 ~ 7min, obtain castable for trough of copper-making converter.
Castable for trough of copper-making converter prepared by the present embodiment, under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
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 is 21 ~ 25MPa and 57 ~ 66MPa；Under the conditions of 1450 DEG C × 3h permanent line rate of change 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 ~ 30wt%
Electrofused mullite, the alumina powder of 3.8 ~ 4.4wt%, the fine silica powder of 3.2 ~ 3.8wt%, the calcium aluminate of 2.6 ~ 3.2wt%
The sodium tripolyphosphate of cement, the kyanite of 4.4 ~ 5.6wt%, the explosion-proof fiber of 0.04 ~ 0.05wt% and 0.22 ~ 0.26wt% is former
Material, mixes 1 ~ 3min, the water of additional described raw material 4 ~ 6.5wt%, mixes 3 ~ 7min, obtain castable for trough of copper-making converter.
Castable for trough of copper-making converter prepared by the present embodiment, under the conditions of 110 DEG C × 24h and 1300 DEG C × 3h
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；Under the conditions of 1450 DEG C × 3h, permanent line rate of change is
0.06~0.09。
This detailed description of the invention compared with prior art has a following good effect:
The granule strength of the ferro-titanium slag that this detailed description of the invention uses is big and coefficient of thermal expansion is low, permanent line rate of change during use
Little, improve the volume stability of castable for trough of copper-making converter, its strength at normal temperature and cold crushing strength also obtain
To significantly improving；When at high temperature using simultaneously, the TiO in ferro-titanium slag2Can also be with the SiO in copper ashes2React
Generate high melting compound, reduce copper ashes to the erosion of castable for trough of copper-making converter and infiltration, decrease copper ashes pair
Castable for trough of copper-making converter wash away loss, thus extend the service life of castable for trough of copper-making converter.
The ferro-titanium slag that this detailed description of the invention uses belongs to trade waste, aboundresources, cheap and raw material
Renewable, to ferro-titanium slag utilization not only energy-conserving and environment-protective, and the sustainable development of beneficially refractory industry.It addition,
This detailed description of the invention is to equipment without particular/special requirement, therefore technique is simple and production cost is low.
Castable for trough of copper-making converter prepared by this detailed description of the invention, at 110 DEG C × 24h and 1300 DEG C × 3h
Under the conditions of after heat treatment through detection: 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 is 20 ~ 30MPa and 55 ~ 75MPa；Permanent line rate of change under the conditions of 1450 DEG C × 3h
For-0.01 ~ 0.1.
Therefore, this detailed description of the invention has that technique is simple, production cost is low and the reproducible feature of raw material；Prepared
Castable for trough of copper-making converter high volume good stability, 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 (9)
1. the preparation method of a castable for trough of copper-making converter, it is characterised in that described preparation method is: with 35～
The dioxy of the alumina powder of the electrofused mullite of ferro-titanium slag, 25～50wt%, 2～5wt%, 2～the 5wt% of 60wt%
The explosion-proof fiber of the kyanite of the aluminous cement of SiClx micropowder, 2～5wt%, 2～8wt%, 0.01～0.07wt% and 0.1
～the sodium tripolyphosphate of 0.3wt% is raw material, mixing 1～3min, the water of additional described raw material 4～7wt%, mix 3～7min,
Obtain castable for trough of copper-making converter.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described ferrotianium closes
The main chemical compositions of gold slag is: Al2O3It is 70～80wt%, TiO2Being 8～16wt%, MgO is 1～4wt%, CaO be 7～
12wt%；The refractoriness of ferro-titanium slag > 1790 DEG C；
The grain composition of described ferro-titanium slag is: granularity is 8～5mm to account for 17～27wt%, and granularity is less than 5mm and is more than or equal to
3mm accounts for 16～25wt%, and granularity accounts for 30～40wt% less than 3mm and 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 preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described electric smelting is not
The main chemical compositions carrying out stone is: Al2O3It is 70～80wt%, SiO2It is 20～30wt%；The granular-grade of described electrofused mullite
Joining and be: granularity is 1～0.088mm to account for 50～60%, granularity accounts for 40～50mm% less than 0.088mm and more than or equal to 0.044mm.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described aluminium oxide
The Al of micropowder2O3Content >=98wt%, granularity is 3～5 μm.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described titanium dioxide
The SiO of silicon powder2Content >=96wt%, granularity is 3～5 μm.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described calcium aluminate
The Al of cement2O3Content >=80wt%, CaO content 20wt%；The granularity of described aluminous cement is 20～44 μm.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described kyanite
Al2O3Content is 55～65wt%, SiO2Content is 30～40wt%；The granularity of described kyanite is 0.1～0.125mm.
The preparation method of castable for trough of copper-making converter the most according to claim 1, it is characterised in that described trimerization phosphorus
The Na of acid sodium5P3O10Content >=98wt%, granularity 0.5～1mm.
9. a castable for trough of copper-making converter, it is characterised in that described castable for trough of copper-making converter is according to power
Profit requires that the copper converter prepared by the preparation method of the castable for trough of copper-making converter according to any one of 1～8 goes out
Copper ditch castable.
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Cited By (4)
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| CN107266052A (en) * | 2017-07-10 | 2017-10-20 | 武汉科技大学 | Alumina titanium calcium aluminate carborundum multiple phase refractory material and preparation method thereof |
| CN107311677A (en) * | 2017-07-12 | 2017-11-03 | 武汉科技大学 | A kind of titanium calcium aluminate mullite Multiphase 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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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107266052A (en) * | 2017-07-10 | 2017-10-20 | 武汉科技大学 | Alumina titanium calcium aluminate carborundum multiple phase refractory material and preparation method thereof |
| CN107311677A (en) * | 2017-07-12 | 2017-11-03 | 武汉科技大学 | A kind of titanium calcium aluminate mullite Multiphase refractory material and preparation method thereof |
| 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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| CN105924196B (en) | 2018-08-21 |
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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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Assignee: Wuhan Chuanfu metal materials Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2020420000002 Date of cancellation: 20220117 |