CN109111235A - A kind of alumina-spinel castable - Google Patents
A kind of alumina-spinel castable Download PDFInfo
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- CN109111235A CN109111235A CN201811032929.7A CN201811032929A CN109111235A CN 109111235 A CN109111235 A CN 109111235A CN 201811032929 A CN201811032929 A CN 201811032929A CN 109111235 A CN109111235 A CN 109111235A
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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
- C04B35/66—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
- C04B35/01—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
- C04B35/44—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 aluminates
- C04B35/443—Magnesium aluminate spinel
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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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- 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
- C04B2235/3205—Alkaline earth oxides or oxide forming salts thereof, e.g. beryllium oxide
- C04B2235/3206—Magnesium oxides or oxide-forming salts thereof
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- C04B2235/02—Composition of constituents of the starting material or of secondary phases of the final product
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- C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
- C04B2235/3217—Aluminum oxide or oxide forming salts thereof, e.g. bauxite, alpha-alumina
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- 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
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- 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
- C04B2235/44—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 or hypophosphite
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Abstract
The invention discloses a kind of alumina-spinel castable, the consisting of that castable includes and the mass percent accordingly formed are as follows: refractory waste 65%-75%；Bauxite powder 5%-12%；Magnesia powder 5%-10%；Spinel powder 8%-12%；Silicon powder 2%-5%；The castable further includes additive, and the weight ratio of the additive is the 0.2%-0.4% of castable gross mass；A kind of alumina-spinel castable of the purpose of the present invention, part alumine is replaced using the refractory waste of recycling, the alumina-spinel castable of production not only meets construction and requirement, but also has saved mineral resources, reduces the environmental pollution of waste refractory materials.
Description
Technical field
The present invention relates to fire resisting material field more particularly to a kind of alumina-spinel castables.
Background technique
Refractory material is a kind of inorganic non-metallic material that refractoriness is not less than 1580 DEG C.Refractoriness refers to that refractory material is bored
Body sample resists high temperature action without softening molten Celsius temperature in no loading.But only determined with refractoriness
Justice cannot describe refractory material comprehensively, and 1580 DEG C are not absolute.Now be defined as all physicochemical properties allow its
The material used under hot environment is known as refractory material.Refractory material is widely used in metallurgy, chemical industry, petroleum, machine-building, silicic acid
The industrial circles such as salt, power, dosage is maximum in metallurgical industry, accounts for the 50%~60% of total output.
China generates refractory waste, and only about 20% has obtained coarse utilization, does not play its due value
And effect, still more it is more use after refractory material discarded and buried as industrial refuse, also consume processing and fortune
Defeated expense, this is all the waste of the human and material resources and resource to country.Discarded refractory material also generates pollution to environment, this
It is mainly manifested in: 1. dust；2. the silicosis of crystalline silica；3. the radioactivity of zirconia material；4.cr6+Carcinogenicity；
5. the carcinogenicity of refractory fibre and asbestos；6. the pollution of pitch and resin volatile matter；7. the soil that waste refractory materials occupy.
If the millions of tons used refractory that China generates every year can be fully utilized as secondary resource, not only
A large amount of resource is saved for China, and the social benefit improved every year will be more than 10,000,000,000 yuan.Especially to improvement and protection environment
It plays an important role.Therefore, to the raising performance of enterprises, social benefit and ring not only is improved to used refractory regeneration
Border is significant, and is also benefit in the present age, major issue of the function in an eternal lasting, leaves some resources for our descendants more.
In metallurgy industry, alumina-spinel castable is mainly used for steel ladle working layer or permanent layer, the good, intensity with compactness
The advantages that high, slag corrosion resistance and good penetrability.Previous alumina-spinel castable is with alumine, magnesia, spinelle etc. for original
Material is prepared.Due to alumine and magnesia price escalation, so that the cost of alumina-spinel castable increases year by year.
Summary of the invention
The purpose of the present invention is to solve the shortcomings of the prior art and a kind of alumina-spinel castable is provided, use recycling
Refractory waste replaces part alumine, and the alumina-spinel castable of production not only meets construction and requirement, and
And mineral resources have been saved, reduce the environmental pollution of waste refractory materials.
In order to achieve the above objectives, the present invention is achieved through the following technical solutions.
A kind of alumina-spinel castable, the consisting of that castable includes and the mass percent accordingly formed are as follows: fire resisting
Material waste 65%-75%；Bauxite powder 5%-12%；Magnesia powder 5%-10%；Spinel powder 8%-12%；Silicon powder 2%-
5%；
The diameter range of the refractory waste particle is 0-25mm；
The particle of the bauxite powder is respectively 180 mesh, 320 mesh；
The particle of the magnesia powder is respectively 180 mesh, 320 mesh,
The particle of the spinel powder is 180 mesh；
The castable further includes additive, and the weight ratio of the additive is the 0.2%-0.4% of castable gross mass；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate: 20%-35%, calgon:
20%-35%, sodium citrate: 45%-55%.
Further, castable includes consisting of and the mass percent accordingly formed are as follows: refractory waste 25-
Additional amount 19%, the additional amount 19% of refractory waste 10-5mm, the additional amount of refractory waste 5-3mm of 10mm
13%, the additional amount 20% of refractory waste 3-0mm；Additional amount 6%, 320 purpose of bauxite powder of 180 mesh of bauxite powder add
Enter amount 2%；Additional amount 5.5%, the additional amount 3% of 320 mesh of magnesia powder of 180 mesh of magnesia powder；The additional amount of 180 mesh of spinel powder
10%；Silicon powder additional amount 2.5%；And the additive of the castable gross mass 0.4%；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, lemon
Sour sodium 50%.
Further, castable includes consisting of and the mass percent accordingly formed are as follows: refractory waste 25-
Additional amount 19%, the additional amount 19% of refractory waste 10-5mm, the additional amount of refractory waste 5-3mm of 10mm
13%, the additional amount 20% of refractory waste 3-0mm；Additional amount 4%, 320 purpose of bauxite powder of 180 mesh of bauxite powder add
Enter amount 4%；Additional amount 3%, the additional amount 5% of 320 mesh of magnesia powder of 180 mesh of magnesia powder；The additional amount of 180 mesh of spinel powder
10%；Silicon powder additional amount 3%；And the additive of the castable gross mass 0.3%；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, lemon
Sour sodium 50%.
Further, castable includes consisting of and the mass percent accordingly formed are as follows: refractory waste 25-
Additional amount 19%, the additional amount 19% of refractory waste 10-5mm, the additional amount of refractory waste 5-3mm of 10mm
13%, the additional amount 20% of refractory waste 3-0mm；Additional amount 6%, 320 purpose of bauxite powder of 180 mesh of bauxite powder add
Enter amount 5%；Additional amount 3%, the additional amount 5% of 320 mesh of magnesia powder of 180 mesh of magnesia powder；The additional amount of 180 mesh of spinel powder
7%；Silicon powder additional amount 3%；And the additive of the castable gross mass 0.35%；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, lemon
Sour sodium 50%.
A kind of preparation method of alumina-spinel castable, it is the following steps are included: firstly, by refractory waste, aluminium alum
Native powder, magnesia powder, spinel powder, silicon powder and additive are prepared in proportion；Then, it stirs 2-3 minutes and mixes in blender
Uniformly；Finally, the water that the 6%-6.5% of castable gross mass is added stirs 3-5 minutes, vibration moulding after mixing evenly.
A kind of alumina-spinel castable of the purpose of the present invention replaces part high alumina alum using the refractory waste of recycling
Soil, the alumina-spinel castable of production not only meets construction and requirement, but also has saved mineral resources, and reduction is discarded resistance to
The environmental pollution of fiery material.
Specific embodiment
Below with reference to embodiment, the present invention will be further described, but is not limited to the content on specification.
A kind of alumina-spinel castable, the composition and corresponding mass percent that it includes are as follows: aggregate is recycling fire proofed wood
Expect waste material 65%-75%；Powder is respectively 85 alumine powder 5%-12%；Medium-grade magnesite 5%-10%；Spinel powder 8%-
12%；Silicon powder 2%-5%；Additive 0.2%-0.4%.
Preferably as one kind of the invention, aggregate using refractory waste 25-10mm, 10-5mm of recycling, 5-3mm,
3-0mm；Powder selects 180 mesh of alumine powder, 320 mesh, 180 mesh of medium-grade magnesite powder, 320 mesh, 180 mesh of spinel powder.
Bauxite powder is the general name of a variety of geology sources oxidizing aqueous aluminum ore far from it, and it is advanced to belong to System of Silica/Aluminum Microparticle system
Refractory material.The fine powder for selecting burnt sintered bauxite ore to be processed into Raymond mill, granularity are usually 100 mesh -325
Mesh is widely used in refractories industry.Suitable for moltening mold castings investment precoat and stucco material, while can also make
For the refractory aggregate of various other cast paints.The coefficient of expansion is small, refractoriness is high, chemical stability is good.Present invention selection 85 is high
Bauxite powder, alumine powder reacted at high temperature with the MgO in matrix generate In-suit spinel, In-suit spinel can in slag
MnO and FeO form solid solution, reaction equation is as follows:
FeO+MnO+MA-(Fe, Mn, Mg) O (Fe, Al) O
Make slag SiO2Enrichment and become sticky, since slag penetration depth (L) is determined by following equations: L ∝ η 2, this shows
The generation of In-suit spinel in matrix makes the viscosity of slag increase to limit the infiltration of slag.The MgO being incorporated in matrix simultaneously
With Al2O3The In-suit spinel that reaction generates in use is then evenly distributed, small with the contact angle of slag, limits slag
Flowing, improves slag penetration resistance.Pre-synthesized spinel powder is added, the anti-scour property of castable can be improved.
Preferably as one kind of the invention, bonding agent is using 92 silicon powders.Silicon powder is a kind of nontoxic, tasteless, nothing
The inorganic non-metallic material of pollution.Due to it have good temperature tolerance, acid-alkali-corrosive-resisting, thermal coefficient high, high insulation, low bulk,
The excellent performances such as stable chemical performance, hardness is big, are widely used in chemical industry, electronics, integrated circuit (IC), electric appliance, plastics, painting
The fields such as material, advanced paint, rubber, national defence.With the fast development of high-tech sector, silicon powder will also step into new history and send out
Exhibition period.Silicon powder is by natural quartz (SiO2) or vitreous silica (natural quartz is through high-temperature fusion, amorphous state after cooling
SiO2) be process through multiple tracks techniques such as broken, ball milling (or vibration, airflow milling), flotation, pickling purification, high-purity water process
Micro mist.
Silicon powder and Mg0 and H2O forms MgO-SiO at normal temperature2- H2O gel and generate Coagulating binding, have sample
There is higher normal temperature strength；In heat treatment process, Si-OH key dehydration polymerization forms network-like Si-O-Si structure, the net
Network structure be always maintained at it is also unchanged to 1100 DEG C, such a construction ensures materials at 1100 DEG C × 3h have it is certain strong
Degree.
After 1550 DEG C × 3h processing, fine silica powder and magnesia occur chemical reaction and form forsterite, magnesia with
Alumine reaction generates spinelle, has higher-strength after ensure that high-temperature process.
Magnesia is also known as magnesite clinker, reacts magnesium hydroxide obtained, warp with milk of lime by magnesite, water magnesium mine or with seawater
High-temperature calcination forms, and hydration capability is strong.It is mainly used for basic refractory processed, it is impure more for spreading such as magnesia brick, magnesia-alumina brick
Make steel steel stove bottom.Main chemical compositions are MgO, and mineralogical composition is periclase isometric system, 3.56~3.65g/cm of density, Mohs
Hardness is 5.5,2800 DEG C of fusing point, in 1800~2400 DEG C of significant volatilizations.Pure periclase is colourless, with Fe2O3, CaO content
Increase color from light to dark, is in yellow, brown, dark brown.Periclase crystallite dimension with calcination temperature raising and soaking time
Extension and correspondingly increase, hydration resistance and resistance to slag corrosion also accordingly enhance.
Spinelle is the mineral of magnesium aluminum oxide composition, because containing magnesium, iron, zinc, manganese etc. element, they can be divided into very
It is a variety of, such as aluminate, hercynite, gahnite, galaxite, picotite.Chemical molecular formula be (Mg, Fe, Zn,
Mn) (Al, Cr, Fe)2O4, it includes the subtribes such as aluminate and picotite that comparison of ingredients is complicated.Iron-containing spinelle subtribe
As opaque magnetic iron ore, maghemite etc..Most of spinelle is aluminate subtribe, and wherein Mg2+ and Fe2+ can appoint
The mixing of meaning ratio.Crystal system: belong to isometric system, crystal habit: being often in octahedra crystalline form, sometimes octahedron and 12 face of diamond shape
Body, cube are at combinate form.Can be artificial synthesized, fusing point is 2135 DEG C, and refractoriness is about 1900 DEG C.
It preferably as one kind of the invention, is the composition of the additive and corresponding in terms of 100% by the quality of additive
Mass ratio are as follows: sodium tripolyphosphate 20%-35%, calgon 20%-35%, sodium citrate 45%-55%.Citric acid
The addition of sodium, calgon and sodium tripolyphosphate can play reduction effect, guarantee workability.
The preparation method of resource-conserving alumina-spinel castable prepares aggregate, powder and additive in proportion, is stirring
It mixes to stir in machine 2-3 minutes and be uniformly mixed, the water for then adding 6%-6.5% stirs 3-5 minutes, vibrates into after mixing evenly
Type.
Resource-conserving alumina-spinel castable of the invention has that compactness is good, intensity is high, slag corrosion resistance and permeability
Can it is excellent, construction good fluidity the advantages of.1. alumine fine powder can react in-situ preparation original with the MgO in matrix at high temperature
Position spinelle, the generation of In-suit spinel inhibit slag to the infiltration of material, improve the anti-slag infiltration of alumina-spinel castable
Property.2. the addition of Pre-synthesized spinel powder can significantly improve the resistance to slag corrosion of alumina-spinel castable.3. silica is micro-
Powder and magnesia occur chemical reaction and form forsterite, and alumine fine powder is reacted with MgO generates spinelle, make aluminate
Castable also can guarantee higher intensity at high temperature.
Embodiment 1
A kind of resource-conserving alumina-spinel castable, is made by following raw material: recycling refractory waste 25-10mm adds
Enter amount 19%, recycling refractory waste 10-5mm additional amount 19%, recycling refractory waste 5-3mm additional amount 13%, return
Receive refractory waste 3-0mm additional amount 20%.Powder is respectively 180 mesh additional amount 6% of alumine powder, alumine powder
320 mesh additional amounts 2%, 180 mesh additional amount 5.5% of medium-grade magnesite powder, 320 mesh additional amount 3% of medium-grade magnesite powder, spinel powder
180 mesh additional amounts 10%, silicon powder additional amount 2.5%.Additive 0.4%.
Wherein additive by sodium tripolyphosphate 25%, calgon 25%, sodium citrate 50%.
Embodiment 2
A kind of resource-conserving alumina-spinel castable, is made by following raw material: recycling refractory waste 25-10mm adds
Enter amount 19%, recycling refractory waste 10-5mm additional amount 19%, recycling refractory waste 5-3mm additional amount 13%, return
Receive refractory waste 3-0mm additional amount 20%.Powder is respectively 180 mesh additional amount 4% of alumine powder, alumine powder
320 mesh additional amounts 4%, 180 mesh additional amount 3% of medium-grade magnesite powder, 320 mesh additional amount 5% of medium-grade magnesite powder, spinel powder 180
Mesh additional amount 10%, silicon powder additional amount 3%.Additive 0.3%.
Embodiment 3
A kind of resource-conserving alumina-spinel castable, is made by following raw material: recycling refractory waste 25-10mm adds
Enter amount 19%, recycling refractory waste 10-5mm additional amount 19%, recycling refractory waste 5-3mm additional amount 13%, return
Receive refractory waste 3-0mm additional amount 20%.Powder is respectively 180 mesh additional amount 6% of alumine powder, alumine powder
320 mesh additional amounts 5%, 180 mesh additional amount 3% of medium-grade magnesite powder, 320 mesh additional amount 5% of medium-grade magnesite powder, spinel powder 180
Mesh additional amount 7%, silicon powder additional amount 3%.Additive 0.35%.
The castable of above-described embodiment production needs technical indicator to be achieved are as follows:
Technical indicator:
It is micro- to recycle refractory waste, alumine, magnesia, spinelle, silicon that the purpose of the present invention is to provide one kind
Powder etc. is raw material, high-intensitive, compactness is good, slag corrosion resistance and permeance property are good, the aluminate casting of construction good fluidity
Material.
A kind of alumina-spinel castable of the purpose of the present invention replaces part high alumina alum using the refractory waste of recycling
Soil, the alumina-spinel castable of production not only meets construction and requirement, but also has saved mineral resources, and reduction is discarded resistance to
The environmental pollution of fiery material.
Obviously, above embodiment of the invention be only to clearly illustrate example of the present invention, and not be
Restriction to embodiments of the present invention.For those of ordinary skill in the art, on the basis of the above description also
It can make other variations or changes in different ways.Here all embodiments can not be exhaustive.It is all to belong to this
The obvious changes or variations that the technical solution of invention is extended out are still in the scope of protection of the present invention.
Claims (5)
1. a kind of alumina-spinel castable, it is characterised in that: the consisting of that castable includes and the quality percentage accordingly formed
Than are as follows: refractory waste 65%-75%；Bauxite powder 5%-12%；Magnesia powder 5%-10%；Spinel powder 8%-12%；
Silicon powder 2%-5%；
The diameter range of the refractory waste particle is 0-25mm；
The particle of the bauxite powder is respectively 180 mesh, 320 mesh；
The particle of the magnesia powder is respectively 180 mesh, 320 mesh,
The particle of the spinel powder is 180 mesh；
The castable further includes additive, and the weight ratio of the additive is the 0.2%-0.4% of castable gross mass；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate: 20%-35%, calgon: 20%-
35%, sodium citrate: 45%-55%.
2. a kind of alumina-spinel castable according to claim 1, it is characterised in that: castable includes consisting of and phase
The mass percent that should be formed are as follows: the addition of the additional amount 19%, refractory waste 10-5mm of refractory waste 25-10mm
Measure 19%, the additional amount 13% of refractory waste 5-3mm, the additional amount 20% of refractory waste 3-0mm；Bauxite powder
Additional amount 6%, the additional amount 2% of 320 mesh of bauxite powder of 180 mesh；The additional amount 5.5% of 180 mesh of magnesia powder, magnesia powder 320
Purpose additional amount 3%；The additional amount 10% of 180 mesh of spinel powder；Silicon powder additional amount 2.5%；And the total matter of castable
The additive of amount 0.4%；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, sodium citrate
50%.
3. a kind of alumina-spinel castable according to claim 1, it is characterised in that: castable includes consisting of and phase
The mass percent that should be formed are as follows: the addition of the additional amount 19%, refractory waste 10-5mm of refractory waste 25-10mm
Measure 19%, the additional amount 13% of refractory waste 5-3mm, the additional amount 20% of refractory waste 3-0mm；Bauxite powder
Additional amount 4%, the additional amount 4% of 320 mesh of bauxite powder of 180 mesh；The additional amount 3% of 180 mesh of magnesia powder, 320 mesh of magnesia powder
Additional amount 5%；The additional amount 10% of 180 mesh of spinel powder；Silicon powder additional amount 3%；And the castable gross mass
0.3% additive；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, sodium citrate
50%.
4. a kind of alumina-spinel castable according to claim 1, it is characterised in that: castable includes consisting of and phase
The mass percent that should be formed are as follows: the addition of the additional amount 19%, refractory waste 10-5mm of refractory waste 25-10mm
Measure 19%, the additional amount 13% of refractory waste 5-3mm, the additional amount 20% of refractory waste 3-0mm；Bauxite powder
Additional amount 6%, the additional amount 5% of 320 mesh of bauxite powder of 180 mesh；The additional amount 3% of 180 mesh of magnesia powder, 320 mesh of magnesia powder
Additional amount 5%；The additional amount 7% of 180 mesh of spinel powder；Silicon powder additional amount 3%；And the castable gross mass
0.35% additive；
The composition of the additive and corresponding mass ratio are as follows: sodium tripolyphosphate 25%, calgon 25%, sodium citrate
50%.
5. a kind of preparation method of alumina-spinel castable according to claim 1, it is characterised in that: it includes following step
It is rapid: firstly, refractory waste, bauxite powder, magnesia powder, spinel powder, silicon powder and additive are prepared in proportion；So
Afterwards, it stirs 2-3 minutes and is uniformly mixed in blender；Finally, the water that the 6%-6.5% of castable gross mass is added stirs 3-5
Minute, vibration moulding after mixing evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811032929.7A CN109111235A (en) | 2018-09-05 | 2018-09-05 | A kind of alumina-spinel castable |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811032929.7A CN109111235A (en) | 2018-09-05 | 2018-09-05 | A kind of alumina-spinel castable |
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| CN109111235A true CN109111235A (en) | 2019-01-01 |
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| CN (1) | CN109111235A (en) |
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| CN110342951A (en) * | 2019-08-28 | 2019-10-18 | 云南濮耐昆钢高温材料有限公司 | A kind of ladle refractory wass and preparation method thereof |
| CN110451999A (en) * | 2019-08-28 | 2019-11-15 | 云南濮耐昆钢高温材料有限公司 | A kind of aluminum-spinel refractory casting material and preparation method thereof |
| CN110451933A (en) * | 2019-08-28 | 2019-11-15 | 云南濮耐昆钢高温材料有限公司 | A kind of tundish prefabricated component and preparation method thereof |
| CN112441840A (en) * | 2020-12-07 | 2021-03-05 | 云南濮耐昆钢高温材料有限公司 | Converter repairing material prepared by utilizing recycled magnesia-hercynite bricks |
| CN112939568A (en) * | 2021-02-10 | 2021-06-11 | 新沂北美高科耐火材料有限公司 | Regenerated waste aluminum clay brick and preparation process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110342951A (en) * | 2019-08-28 | 2019-10-18 | 云南濮耐昆钢高温材料有限公司 | A kind of ladle refractory wass and preparation method thereof |
| CN110451999A (en) * | 2019-08-28 | 2019-11-15 | 云南濮耐昆钢高温材料有限公司 | A kind of aluminum-spinel refractory casting material and preparation method thereof |
| CN110451933A (en) * | 2019-08-28 | 2019-11-15 | 云南濮耐昆钢高温材料有限公司 | A kind of tundish prefabricated component and preparation method thereof |
| CN112441840A (en) * | 2020-12-07 | 2021-03-05 | 云南濮耐昆钢高温材料有限公司 | Converter repairing material prepared by utilizing recycled magnesia-hercynite bricks |
| CN112939568A (en) * | 2021-02-10 | 2021-06-11 | 新沂北美高科耐火材料有限公司 | Regenerated waste aluminum clay brick and preparation process thereof |
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