CN108101561A - A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof - Google Patents
A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof Download PDFInfo
- Publication number
- CN108101561A CN108101561A CN201711487087.XA CN201711487087A CN108101561A CN 108101561 A CN108101561 A CN 108101561A CN 201711487087 A CN201711487087 A CN 201711487087A CN 108101561 A CN108101561 A CN 108101561A
- Authority
- CN
- China
- Prior art keywords
- stainless steel
- preparation
- pouring materialfor
- fine powder
- steel ladle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/106—Refractories from grain sized mixtures containing zirconium oxide or zircon (ZrSiO4)
-
- 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
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/10—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on aluminium oxide
- C04B35/101—Refractories from grain sized mixtures
- C04B35/103—Refractories from grain sized mixtures containing non-oxide refractory materials, e.g. carbon
-
- 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
- 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
- C04B2235/3427—Silicates other than clay, e.g. water glass
- C04B2235/3463—Alumino-silicates other than clay, e.g. mullite
-
- 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
- C04B2235/00—Aspects relating to ceramic starting mixtures or sintered ceramic products
- C04B2235/70—Aspects relating to sintered or melt-casted ceramic products
- C04B2235/96—Properties of ceramic products, e.g. mechanical properties such as strength, toughness, wear resistance
- C04B2235/9669—Resistance against chemicals, e.g. against molten glass or molten salts
- C04B2235/9676—Resistance against chemicals, e.g. against molten glass or molten salts against molten metals such as steel or aluminium
Abstract
The present invention relates to a kind of stainless steel smelting pouring materialfor steel ladles and preparation method thereof.Its scheme is：The micropore corundum in granules of 43~68wt% and the magnesium aluminate spinel particle of 10~27wt% are aggregate, with the micropore corundum fine powder of 5~15wt%, the magnesium aluminate spinel micro mist of 2~4wt%, the boehmite of 4~8wt%, 2~4wt% ρ Al2O3The chromium powder of fine powder, the monoclinic phase powdered zirconium oxide of 0.1~1wt% and 0.1~1wt% is matrix, and the sum of aggregate and matrix are raw material；Using the antifoaming agent of the organic fiber of 0.04~0.08wt% of raw material, the polycarboxylate water-reducer of 0.1~0.5wt%, the maleic acid of 0.2~0.5wt% and 0.01~0.03wt% as additive.Matrix, additive and water are stirred, obtain premix；Aggregate is sprinkled into mold, then by premix casting mold, is molded, dry, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.Intensity height of the present invention, good thermal shock stability, resistance to erosion, Slag resistance is excellent and can improve stainless steel quality.
Description
Technical field
The invention belongs to pouring materialfor steel ladle technical fields.More particularly to a kind of stainless steel smelting pouring materialfor steel ladle and its system
Preparation Method.
Background technology
Stainless steel refers to the steel of the chemical etchings dielectric corrosions such as the weak corrosive medium such as resistance to air, steam, water and acid, alkali, salt,
Also known as stainless acid resistant steel.The alloying elements such as chromium (Cr), nickel (Ni) and manganese (Mn) are mainly added in the chemical composition of stainless steel, with
Improve the physical and chemical performances such as corrosion resistance, inoxidizability and the wearability of steel.The content height of Cr elements influences stainless
The corrosion resistance of steel, it is considered that when Cr constituent contents are not less than 11.7%, steel alloy has corrosion resistance, stainless steel in industry
Chromium content generally requirement is 12%~30%.
Refractory material plays an important role in steel smelting procedure, and there are refractory material in the different smelting stages different want
It asks, for example, EAF smelting processes furnace body, mainly using magnesia carbon brick, bell mainly uses castable containing pink fused alumina.AOD, VOD smelt
Process mainly uses fired magnesia-calcium brick, burns till dolomite brick and magnesia calcium zirconium brick, also has directly to use and does not burn magnesite dolomite brick, this
A little refractory materials contact directly during steel smelting with molten steel, and ionized impurity element present in molten steel can be anti-with refractory material
Should, steel inclusion is generated, is contained for example, magnesia carbon refractory may increase spinel inclusion and carbon in aluminum killed steel
Amount.
The mainly magnesite-dolomite refractories that stainless steel smelting ladle uses, in ladle smelting process, magnesium carbonaceous fire resisting
Material plays dephosphorization, desulfurization positive effect, can reduce phosphorus in stainless steel water, sulfur content, but magnesite-dolomite refractories
In [Ca] be easy to react with [S] to dissociate in molten steel, generate dystectic CaS, form steel inclusion, influence the clean of molten steel
Cleanliness.In addition, refractory material is easy to peel off damage under the erosion effect of molten steel, reduces the service life of refractory material,
Affect the cleanliness factor of molten steel.Current ladle lining deteriorates comparatively fast in stainless steel smelting process, and to first in steel
The control of element is unfavorable, constrains stainless steel production.
The content of the invention
It is contemplated that overcome prior art defect, it is therefore an objective to provide a kind of intensity height, good thermal shock stability, resistance to erosion,
Slag resistance is excellent and can improve stainless steel smelting pouring materialfor steel ladle of stainless steel quality and preparation method thereof.
In order to achieve the above object, the technical solution adopted by the present invention is：With the micropore corundum in granules of 43~68wt% and 10
The magnesium aluminate spinel particle of~27wt% is aggregate, with the micropore corundum fine powder of 5~15wt%, the magnesium aluminate spinel of 2~4wt%
Micro mist, the boehmite of 4~8wt%, the ρ-Al of 2~4wt%2O3Fine powder, 0.1~1wt% monoclinic phase powdered zirconium oxide and
The chromium powder of 0.1~1wt% is matrix, and the sum of the aggregate and the matrix are raw material；With account for the raw material 0.04~
The organic fiber of 0.08wt%, the polycarboxylate water-reducer of 0.1~0.5wt%, the maleic acid of 0.2~0.5wt% and 0.01~
The antifoaming agent of 0.03wt% is additive.
First the matrix and the additive are premixed, the water of the additional 4~10wt% of raw material, stirred 2~4 minutes,
Up to premix.The aggregate is equably spread into mold by installation mold, then the premix is poured into a mould in the mold,
Vibration moulding, when heat preservation 12~48 is small under the conditions of 110~200 DEG C, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.
The Al of the micropore corundum in granules2O3Content >=99.5wt%；The micropore corundum in granules：Apparent porosity for≤
5.22%, closed porosity >=7.5%, median pore size is≤0.2 μm, and the grain size of micropore corundum in granules is 20~0.088mm.
The Al of the magnesium aluminate spinel particle2O370~75wt% of content；The grain size of magnesium aluminate spinel particle is 8~1mm.
The ZrO of the monoclinic phase powdered zirconium oxide2Content>95wt%；The grain size of monoclinic phase powdered zirconium oxide is<
0.088mm。
The Al of the micropore corundum fine powder2O3Content >=99.5wt%；The micropore corundum fine powder：Apparent porosity for≤
5.22%, closed porosity >=7.5%, median pore size is≤0.2 μm, the grain size of the micropore corundum fine powder<0.088mm.
The Al of the magnesium aluminate spinel micro mist2O3Content>88wt%；The grain size D of magnesium aluminate spinel micro mist50For 2~6 μm.
The peptization index of the boehmite>97wt%；The grain size D of boehmite50For 0.2~5 μm.
ρ-the Al2O3The Al of fine powder2O3Content >=80wt%；ρ-the Al2O3The grain size D of fine powder50For 1~5 μm.
Cr contents in the chromium powder>99.9wt%, the grain size of chromium powder is 0.048~0.18mm.
The antifoaming agent is silicon ether Copolymer, organosiloxane, polyethers, silicone oil are compound, amine-containing, imines and amides
In one kind.
Due to the adoption of the above technical scheme, the present invention has following good effect compared with prior art：
(1) ρ-Al that the present invention uses2O3It is reacted with water and generates heat, make boehmite in H+In the presence of energy
Fast transition is alumina sol, and balance inhibits ρ-Al2O3With the fast reaction of water, formed after baking and the dehydration of military service process
Nano aluminium oxide makes stainless steel smelting pouring materialfor steel ladle possess good workability and high temperature intensity.
(2) chromium powder that uses of the present invention can not only improve the toughness of material, and Cr occurs oxidation and forms chromium oxide, chromium oxide with
Reactive aluminum generation aluminium chromium solid solution is aoxidized, the high volume stability of stainless steel smelting pouring materialfor steel ladle is improved, also provides
In-situ stress enhances the superplasticity of nano aluminium oxide.
(3) the monocline phase zircite that the present invention uses undergoes phase transition generation in-situ stress in heating, nano aluminium oxide
Superplasticity promotes the formation of micro- closed pore matrix, and the phase-change energy of zirconium oxide can offset stainless steel smelting steel ladle pouring during cooling
The contraction of material, and then be engaged with prefabricated micropore corundum, the comprehensive anti-thermal shock for improving stainless steel smelting pouring materialfor steel ladle
Performance and Slag resistance performance.
(4) present invention can inhibit Cr in stainless steel and occur with stainless steel smelting pouring materialfor steel ladle by adding in chromium powder
Reaction improves the content of Cr in stainless steel, improves the quality of stainless steel.
Stainless steel smelting prepared by the present invention with pouring materialfor steel ladle after testing：Bulk density is 2.95~3.20g/cm3；It is aobvious
The porosity is 12.1~13.9%；Strength at normal temperature (110 DEG C for 24 hours) is 5~8MPa, and strength at normal temperature (1600 DEG C of 3h) is
15~25MPa；High temperature break resistant intensity is 15~20MPa；Cold crushing strength (110 DEG C for 24 hours) is 40~60MPa, and room temperature is pressure-resistant
Intensity (1600 DEG C of 3h) is 70~90MPa；Linear change rate (1600 DEG C of 3h) is 0.5~2.0%；Under the conditions of 1100 DEG C of water coolings,
Thermal shock number >=13 time.
Therefore, the present invention has intensity height, good thermal shock stability, resistance to erosion, Slag resistance is excellent and can improve not
The characteristics of steel quality of becoming rusty.
Specific embodiment
The present invention will be further described With reference to embodiment, not limiting of its scope.
It is now that the raw material involved by present embodiment and additive Unify legislation is as follows to avoid repeating, embodiment
In repeat no more：
The Al of the micropore corundum in granules2O3Content >=99.5wt%；The micropore corundum in granules：Apparent porosity for≤
5.22%, closed porosity >=7.5%, median pore size is≤0.2 μm, and the grain size of micropore corundum in granules is 20~0.088mm.
The Al of the magnesium aluminate spinel particle2O370~75wt% of content；The grain size of magnesium aluminate spinel particle is 8~1mm.
The ZrO of the monoclinic phase powdered zirconium oxide2Content>95wt%；The grain size of monoclinic phase powdered zirconium oxide is<
0.088mm。
The Al of the micropore corundum fine powder2O3Content >=99.5wt%；The micropore corundum fine powder：Apparent porosity for≤
5.22%, closed porosity >=7.5%, median pore size is≤0.2 μm, the grain size of the micropore corundum fine powder<0.088mm.
The Al of the magnesium aluminate spinel micro mist2O3Content>88wt%；The grain size D of magnesium aluminate spinel micro mist50For 2~6 μm.
The peptization index of the boehmite>97wt%；The grain size D of boehmite50For 0.2~5 μm.
ρ-the Al2O3The Al of fine powder2O3Content >=80wt%；ρ-the Al2O3The grain size D of fine powder50For 1~5 μm.
Cr contents in the chromium powder>99.9wt%, the grain size of chromium powder is 0.048~0.18mm.
Embodiment 1
A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof.
Using the micropore corundum in granules of 43~53wt% and 19~27 magnesium aluminate spinel particle as aggregate, with 11~15wt%
Micropore corundum fine powder, the magnesium aluminate spinel micro mist of 2~4wt%, the boehmite of 4~5wt%, the ρ-Al of 2~4wt%2O3
The chromium powder of fine powder, the monoclinic phase powdered zirconium oxide of 0.1~1wt% and 0.1~1wt% is matrix, the aggregate and the matrix
The sum of be raw material；With account for the polycarboxylate water-reducer of the organic fiber of the 0.04~0.08wt% of raw material, 0.1~0.5wt%,
The maleic acid of 0.2~0.5wt% and the antifoaming agent of 0.01~0.03wt% are additive.
First the matrix and the additive are premixed, the water of the additional 4~7wt% of raw material, stirring 2~4 minutes, i.e.,
Obtain premix.The aggregate is equably spread into mold by installation mold, then the premix is poured into a mould in the mold, is shaken
Dynamic shaping, when heat preservation 36~48 is small under the conditions of 110~170 DEG C, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.
The antifoaming agent is silicon ether Copolymer.
Embodiment 2
A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof.
Using the magnesium aluminate spinel particle of the micropore corundum in granules of 48~58wt% and 16~24wt% as aggregate, with 9~
The micropore corundum fine powder of 13wt%, the magnesium aluminate spinel micro mist of 2~4wt%, the boehmite of 5~6wt%, 2~4wt%
ρ-Al2O3The chromium powder of fine powder, the monoclinic phase powdered zirconium oxide of 0.1~1wt% and 0.1~1wt% is matrix, the aggregate and institute
The sum of matrix is stated as raw material；Subtracted with the polycarboxylic acids for accounting for the organic fiber of the 0.04~0.08wt% of raw material, 0.1~0.5wt%
The antifoaming agent of aqua, the maleic acid of 0.2~0.5wt% and 0.01~0.03wt% is additive.
First the matrix and the additive are premixed, the water of the additional 5~8wt% of raw material, stirring 2~4 minutes, i.e.,
Obtain premix.The aggregate is equably spread into mold by installation mold, then the premix is poured into a mould in the mold, is shaken
Dynamic shaping, when heat preservation 28~40 is small under the conditions of 120~180 DEG C, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.
The antifoaming agent is organosiloxane.
Embodiment 3
A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof.
Using the magnesium aluminate spinel particle of the micropore corundum in granules of 53~63wt% and 13~21wt% as aggregate, with 7~
The micropore corundum fine powder of 11wt%, the magnesium aluminate spinel micro mist of 2~4wt%, the boehmite of 6~7wt%, 2~4wt%
ρ-Al2O3The chromium powder of fine powder, the monoclinic phase powdered zirconium oxide of 0.1~1wt% and 0.1~1wt% is matrix, the aggregate and institute
The sum of matrix is stated as raw material；Subtracted with the polycarboxylic acids for accounting for the organic fiber of the 0.04~0.08wt% of raw material, 0.1~0.5wt%
The antifoaming agent of aqua, the maleic acid of 0.2~0.5wt% and 0.01~0.03wt% is additive.
First the matrix and the additive are premixed, the water of the additional 6~9wt% of raw material, stirring 2~4 minutes, i.e.,
Obtain premix.The aggregate is equably spread into mold by installation mold, then the premix is poured into a mould in the mold, is shaken
Dynamic shaping, when heat preservation 20~32 is small under the conditions of 130~190 DEG C, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.
The antifoaming agent is amides.
Embodiment 4
A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof.
Using the magnesium aluminate spinel particle of the micropore corundum in granules of 58~68wt% and 10~18wt% as aggregate, with 5~
The micropore corundum fine powder of 9wt%, the magnesium aluminate spinel micro mist of 2~4wt%, the boehmite of 7~8wt%, 2~4wt%
ρ-Al2O3The chromium powder of fine powder, the monoclinic phase powdered zirconium oxide of 0.1~1wt% and 0.1~1wt% is matrix, the aggregate and institute
The sum of matrix is stated as raw material；Subtracted with the polycarboxylic acids for accounting for the organic fiber of the 0.04~0.08wt% of raw material, 0.1~0.5wt%
The antifoaming agent of aqua, the maleic acid of 0.2~0.5wt% and 0.01~0.03wt% is additive.
First the matrix and the additive are premixed, the water of the additional 7~10wt% of raw material, stirred 2~4 minutes,
Up to premix.The aggregate is equably spread into mold by installation mold, then the premix is poured into a mould in the mold,
Vibration moulding, when heat preservation 12~24 is small under the conditions of 140~200 DEG C, the demoulding, obtained stainless steel smelting pouring materialfor steel ladle.
The antifoaming agent is polyethers, silicone oil is compound, one kind in amine-containing and imines.
Present embodiment has following good effect compared with prior art：
(1) ρ-Al that present embodiment uses2O3It is reacted with water and generates heat, make boehmite in H+It is existing
In the case of can fast transition be alumina sol, balance inhibits ρ-Al2O3With the fast reaction of water, taken off in baking and military service process
Nano aluminium oxide is formed after water, stainless steel smelting pouring materialfor steel ladle is made to possess good workability and high temperature intensity.
(2) chromium powder used can not only improve the toughness of material, and Cr occurs oxidation and forms chromium oxide, chromium oxide and aluminium oxide
Reaction generation aluminium chromium solid solution improves the high volume stability of stainless steel smelting pouring materialfor steel ladle, also provides in situ answer
Power enhances the superplasticity of nano aluminium oxide.
(3) the monocline phase zircite that present embodiment uses undergoes phase transition generation in-situ stress, nanometer in heating
The superplasticity of aluminium oxide promotes the formation of micro- closed pore matrix, and the phase-change energy of zirconium oxide can offset stainless steel smelting use during cooling
The contraction of pouring materialfor steel ladle, and then be engaged with prefabricated micropore corundum, synthesis improves stainless steel smelting pouring materialfor steel ladle
Thermal shock resistance and Slag resistance performance.
(4) present embodiment can inhibit Cr in stainless steel and be poured with stainless steel smelting with ladle by adding in chromium powder
Material feeding reacts, and improves the content of Cr in stainless steel, improves the quality of stainless steel.
Present embodiment prepare stainless steel smelting with pouring materialfor steel ladle after testing：Bulk density for 2.95~
3.20g/cm3；Apparent porosity is 12.1~13.9%；Strength at normal temperature (110 DEG C for 24 hours) be 5~8MPa, strength at normal temperature
(1600 DEG C of 3h) is 15~25MPa；High temperature break resistant intensity is 15~20MPa；Cold crushing strength (110 DEG C for 24 hours) for 40~
60MPa, cold crushing strength (1600 DEG C of 3h) are 70~90MPa；Linear change rate (1600 DEG C of 3h) is 0.5~2.0%；1100
Under the conditions of DEG C water cooling, thermal shock number >=13 time.
Therefore, present embodiment have intensity height, good thermal shock stability, resistance to erosion, Slag resistance excellent and
The characteristics of stainless steel quality can be improved.
Claims (11)
1. a kind of preparation method of stainless steel smelting pouring materialfor steel ladle, it is characterised in that with the micropore corundum of 43~68wt%
The magnesium aluminate spinel particle of grain and 10~27wt% are aggregate, with the micropore corundum fine powder of 5~15wt%, the magnalium of 2~4wt%
Spinel micropowder, the boehmite of 4~8wt%, the ρ-Al of 2~4wt%2O3The monocline phase zircite of fine powder, 0.1~1wt%
The chromium powder of fine powder and 0.1~1wt% are matrix, and the sum of the aggregate and the matrix are raw material；With account for the raw material 0.04~
The organic fiber of 0.08wt%, the polycarboxylate water-reducer of 0.1~0.5wt%, the maleic acid of 0.2~0.5wt% and 0.01~
The antifoaming agent of 0.03wt% is additive；First the matrix and the additive are premixed, the additional 4~10wt%'s of raw material
Water stirs 2~4 minutes to get premix；The aggregate is equably spread into mold by installation mold, then by the premix
It pours into a mould in the mold, vibration moulding, when heat preservation 12~48 is small under the conditions of 110~200 DEG C, stainless steel smelting is made in the demoulding
Use pouring materialfor steel ladle.
2. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that the micropore
The Al of corundum in granules2O3Content >=99.5wt%；The micropore corundum in granules：Apparent porosity is≤5.22%, closed porosity >=
7.5%, median pore size is≤0.2 μm, and the grain size of micropore corundum in granules is 20~0.088mm.
3. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that the magnalium
The Al of spinel particle2O370~75wt% of content；The grain size of magnesium aluminate spinel particle is 8~1mm.
4. the preparation method of the stainless steel smelting pouring materialfor steel ladle according to claim l, it is characterised in that the monocline
The ZrO of phase zircite fine powder2Content>95wt%；The grain size of monoclinic phase powdered zirconium oxide is<0.088mm.
5. the preparation method of the stainless steel smelting pouring materialfor steel ladle according to claim l, it is characterised in that the micropore
The Al of corundum fine powder2O3Content >=99.5wt%；The micropore corundum fine powder：Apparent porosity is≤5.22%, closed porosity >=
7.5%, median pore size is≤0.2 μm, the grain size of the micropore corundum fine powder<0.088mm.
6. the preparation method of the stainless steel smelting pouring materialfor steel ladle according to claim l, it is characterised in that the magnalium
The Al of Spinel micropowder2O3Content>88wt%；The grain size D of magnesium aluminate spinel micro mist50For 2~6 μm.
7. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that the plan is thin
The peptization index of diaspore>97wt%；The grain size D of boehmite50For 0.2~5 μm.
8. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that the ρ-
Al2O3The Al of fine powder2O3Content >=80wt%；ρ-the Al2O3The grain size D of fine powder50For 1~5 μm.
9. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that the chromium powder
Middle Cr contents>99.9wt%, the grain size of chromium powder is 0.048~0.18mm.
10. the preparation method of stainless steel smelting pouring materialfor steel ladle according to claim 1, it is characterised in that described disappears
Infusion is silicon ether Copolymer, organosiloxane, polyethers, silicone oil are compound, one kind in amine-containing, imines and amides.
11. a kind of stainless steel smelting pouring materialfor steel ladle, it is characterised in that the stainless steel smelting is basis with pouring materialfor steel ladle
Stainless steel smelting prepared by the preparation method of stainless steel smelting pouring materialfor steel ladle any one of claim 1~10
Refining pouring materialfor steel ladle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487087.XA CN108101561B (en) | 2017-12-29 | 2017-12-29 | Steel ladle castable for stainless steel smelting and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711487087.XA CN108101561B (en) | 2017-12-29 | 2017-12-29 | Steel ladle castable for stainless steel smelting and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108101561A true CN108101561A (en) | 2018-06-01 |
| CN108101561B CN108101561B (en) | 2020-12-01 |
Family
ID=62215126
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711487087.XA Active CN108101561B (en) | 2017-12-29 | 2017-12-29 | Steel ladle castable for stainless steel smelting and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108101561B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558377A (en) * | 2018-06-25 | 2018-09-21 | 武汉科技大学 | A kind of high nitrogen steel smelting pouring materialfor steel ladle and preparation method thereof |
| CN109503135A (en) * | 2018-11-28 | 2019-03-22 | 江苏恒耐炉料集团有限公司 | The high-strength explosion-proof castable refractory of self-flow pattern |
| CN112500139A (en) * | 2021-02-05 | 2021-03-16 | 北京利尔高温材料股份有限公司 | High-strength anti-erosion ladle self-flow castable and preparation method thereof |
| CN114716233A (en) * | 2022-04-08 | 2022-07-08 | 江苏晶鑫新材料股份有限公司 | Microporous corundum castable and production method thereof |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100704283B1 (en) * | 2001-12-08 | 2007-04-10 | 리프랙토리 인터렉추얼 프라퍼티 게엠베하 운트 코. 카게 | Fired refractory ceramic moulded piece, use and composition thereof for production of moulded pieces |
| CN102757251A (en) * | 2012-08-07 | 2012-10-31 | 成都府天新材料科技有限公司 | Nanometer material contained ladle bottom argon blowing permeable brick and preparation process thereof |
| CN103044044A (en) * | 2013-01-17 | 2013-04-17 | 武汉科技大学 | Lightweight aluminum oxide castable and preparation method thereof |
| CN103979991A (en) * | 2014-06-03 | 2014-08-13 | 武汉科技大学 | Gas permeable brick for steel ladle for stainless steel smelting and preparation method thereof |
| CN104003740A (en) * | 2014-06-03 | 2014-08-27 | 武汉科技大学 | Gas-permeable brick of steel ladle for special steel smelting and preparation method of brick |
| CN106316419A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Refractory castable used in reducing atmosphere |
| CN107311675A (en) * | 2017-07-12 | 2017-11-03 | 洛阳轩石高温材料有限公司 | A kind of air brick prepared by industry byproduct aluminium chromium slag and preparation method thereof |
-
2017
- 2017-12-29 CN CN201711487087.XA patent/CN108101561B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100704283B1 (en) * | 2001-12-08 | 2007-04-10 | 리프랙토리 인터렉추얼 프라퍼티 게엠베하 운트 코. 카게 | Fired refractory ceramic moulded piece, use and composition thereof for production of moulded pieces |
| CN102757251A (en) * | 2012-08-07 | 2012-10-31 | 成都府天新材料科技有限公司 | Nanometer material contained ladle bottom argon blowing permeable brick and preparation process thereof |
| CN103044044A (en) * | 2013-01-17 | 2013-04-17 | 武汉科技大学 | Lightweight aluminum oxide castable and preparation method thereof |
| CN103979991A (en) * | 2014-06-03 | 2014-08-13 | 武汉科技大学 | Gas permeable brick for steel ladle for stainless steel smelting and preparation method thereof |
| CN104003740A (en) * | 2014-06-03 | 2014-08-27 | 武汉科技大学 | Gas-permeable brick of steel ladle for special steel smelting and preparation method of brick |
| CN106316419A (en) * | 2016-08-01 | 2017-01-11 | 张婷 | Refractory castable used in reducing atmosphere |
| CN107311675A (en) * | 2017-07-12 | 2017-11-03 | 洛阳轩石高温材料有限公司 | A kind of air brick prepared by industry byproduct aluminium chromium slag and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 时伟娜等: "氧化锆的引入形式对刚玉-尖晶石浇注料性能的影响", 《轻金属》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108558377A (en) * | 2018-06-25 | 2018-09-21 | 武汉科技大学 | A kind of high nitrogen steel smelting pouring materialfor steel ladle and preparation method thereof |
| CN108558377B (en) * | 2018-06-25 | 2020-12-18 | 武汉科技大学 | Steel ladle castable for high-nitrogen steel smelting and preparation method thereof |
| CN109503135A (en) * | 2018-11-28 | 2019-03-22 | 江苏恒耐炉料集团有限公司 | The high-strength explosion-proof castable refractory of self-flow pattern |
| CN112500139A (en) * | 2021-02-05 | 2021-03-16 | 北京利尔高温材料股份有限公司 | High-strength anti-erosion ladle self-flow castable and preparation method thereof |
| CN112500139B (en) * | 2021-02-05 | 2021-05-18 | 北京利尔高温材料股份有限公司 | High-strength anti-erosion ladle self-flow castable and preparation method thereof |
| CN114716233A (en) * | 2022-04-08 | 2022-07-08 | 江苏晶鑫新材料股份有限公司 | Microporous corundum castable and production method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108101561B (en) | 2020-12-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108101561A (en) | A kind of stainless steel smelting pouring materialfor steel ladle and preparation method thereof | |
| CN104591752B (en) | Burnt magnesia spinel brick for RH refining furnace dip pipe and circulating pipe and preparation method thereof | |
| CN106431436B (en) | Electric furnace cover castable taking aluminum-chromium slag as main material and preparation method thereof | |
| KR20150070400A (en) | Magnesia-carbon brick | |
| CN105170968B (en) | A kind of submersed nozzle | |
| CN105819875B (en) | Refractory castable for Ausmelt copper smelting furnace flue and preparation method thereof | |
| CN103420683A (en) | Tundish low-carbon corundum spinel impact brick and preparation method thereof | |
| CN113213897A (en) | Steel ladle low-carbon aluminum-magnesium-carbon brick | |
| CN105777160B (en) | A kind of ladle slag line MgO-Cr7C3Brick and preparation method thereof | |
| CN109650918B (en) | Environment-friendly chromium-containing refractory castable and preparation method thereof | |
| CN106365646A (en) | Refractory | |
| JP2013072090A (en) | Method for operating converter, magnesia carbon brick used in the converter, method for manufacturing the brick, and lining structure of the converter | |
| CN109776101B (en) | CA (certificate Authority)6-MA-Cr2O3-Al2O3Ladle lining castable and preparation method thereof | |
| CN108101562A (en) | A kind of potassium steel smelting pouring materialfor steel ladle and preparation method thereof | |
| CN110255970A (en) | A kind of sintering free low carbon magnesia carbon brick and preparation method thereof | |
| CN106810283B (en) | Mullite-chromium lightweight castable | |
| CN109279874A (en) | A kind of refining ladle of low erosion | |
| CN111718203B (en) | Refractory castable for converter sublance and preparation method thereof | |
| CN102424592A (en) | Zirconia slide plate and preparation method thereof | |
| CN109809808B (en) | Slag-erosion-resistant magnesium spinel brick for smelting fine steel and preparation method thereof | |
| KR100689154B1 (en) | Refractory materials for mgo-c brick | |
| CN108558377A (en) | A kind of high nitrogen steel smelting pouring materialfor steel ladle and preparation method thereof | |
| JP2003226583A (en) | Unshaped refractory for hot metal | |
| CN113816748B (en) | MgO-CaC for refining furnace 2 -C refractory material and preparation process thereof | |
| CN114605141B (en) | Preparation method of ladle heat-preservation corrosion-resistant permanent layer castable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20180601 Assignee: WUHAN SIGENYUAN ELECTRIC CONTROL EQUIPMENT Co.,Ltd. Assignor: WUHAN University OF SCIENCE AND TECHNOLOGY Contract record no.: X2021420000028 Denomination of invention: Ladle castable for stainless steel smelting and preparation method thereof Granted publication date: 20201201 License type: Common License Record date: 20210929 |
|
| EE01 | Entry into force of recordation of patent licensing contract |