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CN112479684A - Magnesium carbon brick for hot spot area of furnace wall of electric arc furnace - Google Patents

Magnesium carbon brick for hot spot area of furnace wall of electric arc furnace Download PDF

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Publication number
CN112479684A
CN112479684A CN202011361768.3A CN202011361768A CN112479684A CN 112479684 A CN112479684 A CN 112479684A CN 202011361768 A CN202011361768 A CN 202011361768A CN 112479684 A CN112479684 A CN 112479684A
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Prior art keywords
parts
carbon
magnesia
hot spot
electric arc
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Pending
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CN202011361768.3A
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Chinese (zh)
Inventor
康冬冬
鲁志燕
陈勇
崔娟
于宝童
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Prco Kisc Yunnan Refractories Co ltd
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Prco Kisc Yunnan Refractories Co ltd
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Priority to CN202011361768.3A priority Critical patent/CN112479684A/en
Publication of CN112479684A publication Critical patent/CN112479684A/en
Pending legal-status Critical Current

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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
    • C04B35/01—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
    • C04B35/03—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite
    • C04B35/04—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 magnesium oxide, calcium oxide or oxide mixtures derived from dolomite based on magnesium oxide
    • C04B35/043—Refractories from grain sized mixtures
    • 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
    • C04B35/71—Ceramic products containing macroscopic reinforcing agents
    • C04B35/78—Ceramic products containing macroscopic reinforcing agents containing non-metallic materials
    • C04B35/80—Fibres, filaments, whiskers, platelets, or the like
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • 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
    • C04B2235/32—Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3224—Rare earth oxide or oxide forming salts thereof, e.g. scandium oxide
    • C04B2235/3225—Yttrium oxide or oxide-forming salts thereof
    • 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
    • C04B2235/38—Non-oxide ceramic constituents or additives
    • C04B2235/3817—Carbides
    • C04B2235/3821—Boron carbides
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • 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
    • C04B2235/40—Metallic constituents or additives not added as binding phase
    • C04B2235/405—Iron group metals
    • 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
    • C04B2235/42—Non metallic elements added as constituents or additives, e.g. sulfur, phosphor, selenium or tellurium
    • C04B2235/422—Carbon
    • C04B2235/425—Graphite
    • 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
    • C04B2235/48—Organic compounds becoming part of a ceramic after heat treatment, e.g. carbonising phenol resins
    • C—CHEMISTRY; METALLURGY
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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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5427—Particle size related information expressed by the size of the particles or aggregates thereof millimeter or submillimeter sized, i.e. larger than 0,1 mm
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5436—Particle size related information expressed by the size of the particles or aggregates thereof micrometer sized, i.e. from 1 to 100 micron
    • 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
    • C04B2235/50—Constituents or additives of the starting mixture chosen for their shape or used because of their shape or their physical appearance
    • C04B2235/54—Particle size related information
    • C04B2235/5418—Particle size related information expressed by the size of the particles or aggregates thereof
    • C04B2235/5454—Particle size related information expressed by the size of the particles or aggregates thereof nanometer sized, i.e. below 100 nm
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/9607—Thermal properties, e.g. thermal expansion coefficient
    • C—CHEMISTRY; METALLURGY
    • C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
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    • 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
    • C04B2235/9684—Oxidation resistance
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Ceramic Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Structural Engineering (AREA)
  • Metallurgy (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Compositions Of Oxide Ceramics (AREA)
  • Furnace Housings, Linings, Walls, And Ceilings (AREA)

Abstract

The invention discloses a magnesia carbon brick for a hot spot area of a furnace wall of an electric arc furnace, which comprises the following components in parts by weight: fused magnesia, graphite, Carbores P carbon-containing resin powder, boron carbide, yttrium oxide, nano Fe powder and a bonding agent. The invention adopts small-particle fused magnesite to reduce the magnesium-carbon reaction at high temperature; the carbon-containing resin powder is added, so that heterogeneous graphitized carbon can be generated at high temperature, and the oxidation resistance and high-temperature strength of the product are improved; metal is not added as an antioxidant, so that the reaction of the metal and graphite can be avoided, and the consumption of the graphite is reduced; the corrosion resistance of the magnesia carbon brick can be improved by adding yttrium oxide; the addition of the nano Fe powder can promote the generation of a large amount of carbon nano tubes, and the generation of the carbon nano tubes greatly improves the thermal shock stability and the high-temperature mechanical property; the thermal shock stability and the high-temperature performance are both high, the erosion and scouring resistance of the magnesia carbon brick is high, the service life is long, and the service life of the hot spot brick is greatly prolonged.

Description

Magnesium carbon brick for hot spot area of furnace wall of electric arc furnace
Technical Field
The invention belongs to the technical field of refractory materials for metal smelting, and particularly relates to a magnesia carbon brick for a hot spot area of a furnace wall of an electric arc furnace.
Background
The ladle magnesia carbon brick is a high-temperature resistant protective material commonly used for an electric arc furnace and is widely applied to the electric arc furnace. The existing electric arc furnace steel making generally adopts an alternating current electric arc furnace, because the chemical erosion and thermal shock effects borne by the wall of an alternating current electric arc hot spot furnace are much more serious than the lining of the converter, the hot spot temperature can reach 1800-. Because the erosion is violent, reaction products are easy to lose, the decarburized layer of the magnesia carbon brick is unstable, the exposure of a new working surface of the magnesia carbon brick is accelerated, the damage degree of a slag line hot spot area is the basis of furnace repair, and the service life of the magnesia carbon brick in the slag line hot spot area is prolonged, namely the service life of the whole furnace is prolonged. The prior magnesia carbon brick has the unsatisfactory comprehensive performances of erosion resistance, oxidation resistance, scouring resistance, stripping resistance and the like.
Disclosure of Invention
The invention aims to provide a magnesia carbon brick with high erosion resistance and scouring resistance for a hot spot area of a furnace wall of an electric arc furnace.
The method is realized by the following steps: the paint comprises the following components in parts by weight: 61-90 parts of fused magnesia, 14-20 parts of graphite, 0.5-2 parts of Carbores P carbon-containing resin powder, 0.5-2 parts of boron carbide, 3-7 parts of yttrium oxide, 1-2 parts of nano Fe powder, 2-4 parts of a bonding agent and 2-4 parts of rare earth.
Has the advantages that: the invention adopts small-particle fused magnesite to reduce the magnesium-carbon reaction at high temperature; the carbon-containing resin powder is added, so that heterogeneous graphitized carbon can be generated at high temperature, and the oxidation resistance and high-temperature strength of the product are improved; metal is not added as an antioxidant, so that the reaction of the metal and graphite can be avoided, and the consumption of the graphite is reduced; the corrosion resistance of the magnesia carbon brick can be improved by adding yttrium oxide; the addition of the nano Fe powder can promote the generation of a large amount of carbon nano tubes, and the generation of the carbon nano tubes greatly improves the thermal shock stability and the high-temperature mechanical property; according to the technical scheme, at the high temperature of 1700 ℃, the graphite residual rate is high, so that the excellent performances of good slag resistance and the like of the hot-spot magnesia carbon material of the electric arc furnace are preserved, the thermal shock stability and the high-temperature performance are both high, the erosion-resistant and scouring-resistant magnesia carbon brick is high, the service life is long, and the service life of the hot-spot brick is greatly prolonged.
Detailed Description
In order to make those skilled in the art better understand the technical solution of the present invention, the following detailed description is given with reference to the embodiments.
A magnesia carbon brick for a hot spot region of a furnace wall of an electric arc furnace comprises the following components in parts by weight: 61-90 parts of fused magnesia, 14-20 parts of graphite, 0.5-2 parts of Carbores P carbon-containing resin powder, 0.5-2 parts of boron carbide, 3-7 parts of yttrium oxide, 1-2 parts of nano Fe powder, 2-4 parts of a bonding agent and 2-4 parts of rare earth.
The fused magnesia comprises 61-65 parts of large-particle fused magnesia and 1-25 parts of small-particle fused magnesia, wherein the particle size of the large-particle fused magnesia is 1-5 mm, and the particle size of the small-particle fused magnesia is 0.1-1 mm.
The graphite is crystalline flake graphite, and the particle size of the crystalline flake graphite is not more than 0.18 mm.
The particle size of the carbon-containing resin powder of carbon P is not more than 0.4mm, and the particle size of the boron carbide is not more than 0.044 mm.
The grain size of the yttrium oxide is not more than 0.044 mm.
The grain diameter of the nano Fe powder is not more than 80 nm.
The binding agent is thermosetting phenolic resin.
A method for preparing magnesia carbon bricks for a hot spot area of a furnace wall of an electric arc furnace comprises the following steps:
1) respectively crushing large-particle fused magnesia into particles with the particle size of 1-5 mm, crushing small-particle fused magnesia into particles with the particle size of 0.1-1 mm, crushing graphite into particles with the particle size of not more than 0.18mm, crushing Carbores P carbon-containing resin powder into particles with the particle size of not more than 0.4mm, crushing boron carbide into particles with the particle size of not more than 0.044mm, crushing yttrium oxide into particles with the particle size of not more than 0.044mm, and crushing nano Fe powder into particles with the particle size of not more than 80nm to obtain a raw material for later use.
2) Weighing 61-65 parts of large-particle fused magnesia, 1-25 parts of small-particle fused magnesia, 14-20 parts of graphite, 0.5-2 parts of Carbores P carbon-containing resin powder, 0.5-2 parts of boron carbide, 3-7 parts of yttrium oxide, 1-2 parts of nano Fe powder, 2-4 parts of a binding agent and 2-4 parts of rare earth, wherein the tolerance of each raw material is +/-0.05 part by weight, and the raw materials are separated for later use.
3) And pre-mixing the weighed small-granularity fused magnesia, boron carbide, Carbores P carbon-containing resin powder, yttrium oxide and nano Fe powder by using a conical double helix for 30 minutes in advance to serve as mixed powder for later use.
4) Putting the weighed large-particle fused magnesia and small-particle fused magnesia into a high-speed mixer with cooling circulating water in the step 2), mixing for 1-2 minutes at low speed, adding 2 parts of binding agent, mixing for 1-2 minutes at low speed, adding graphite, mixing for 3-4 minutes at low speed, adding mixed powder and residual binding agent, mixing for 3-4 minutes at low speed, rotating for 4-5 minutes at high speed, controlling the material temperature at 40-55 ℃, sieving and discharging to obtain pug.
5) Placing the mud material prepared in the step 3) at room temperature for 3-4 hours for ageing, and then pressing and molding by adopting a 1000-ton double-screw brick press to obtain a finished magnesia carbon brick.
Example 1
A magnesia carbon brick for a hot spot region of a furnace wall of an electric arc furnace comprises the following components in parts by weight: 61 parts of large-particle fused magnesia with the particle size of 1-5 mm, 1 part of small-particle fused magnesia with the particle size of 0.1-1 mm, 14 parts of graphite, 0.5 part of Carbores P carbon-containing resin powder, 0.5 part of boron carbide, 3 parts of yttrium oxide, 1 part of nano Fe powder, 2 parts of a bonding agent and 2 parts of rare earth.
Example 2
A magnesia carbon brick for a hot spot region of a furnace wall of an electric arc furnace comprises the following components in parts by weight: 62 parts of large-particle fused magnesia with the particle size of 1-5 mm, 12 parts of small-particle fused magnesia with the particle size of 0.1-1 mm, 17 parts of graphite, 1.3 parts of Carbores P carbon-containing resin powder, 1.3 parts of boron carbide, 5 parts of yttrium oxide, 1.5 parts of nano Fe powder, 3 parts of a bonding agent and 3 parts of rare earth.
Example 3
A magnesia carbon brick for a hot spot region of a furnace wall of an electric arc furnace comprises the following components in parts by weight: 65 parts of large-particle fused magnesia with the particle size of 1-5 mm, 25 parts of small-particle fused magnesia with the particle size of 0.1-1 mm, 20 parts of graphite, 2 parts of Carbores P carbon-containing resin powder, 2 parts of boron carbide, 7 parts of yttrium oxide, 2 parts of nano Fe powder, 4 parts of a bonding agent and 4 parts of rare earth.

Claims (7)

1. A magnesia carbon brick for a hot spot area of a furnace wall of an electric arc furnace is characterized in that: the paint comprises the following components in parts by weight: 61-90 parts of fused magnesia, 14-20 parts of graphite, 0.5-2 parts of Carbores P carbon-containing resin powder, 0.5-2 parts of boron carbide, 3-7 parts of yttrium oxide, 1-2 parts of nano Fe powder, 2-4 parts of a bonding agent and 2-4 parts of rare earth.
2. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the fused magnesia comprises 61-65 parts of large-particle fused magnesia and 1-25 parts of small-particle fused magnesia, wherein the particle size of the large-particle fused magnesia is 1-5 mm, and the particle size of the small-particle fused magnesia is 0.1-1 mm.
3. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the graphite is crystalline flake graphite, and the particle size of the crystalline flake graphite is not more than 0.18 mm.
4. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the particle size of the carbon-containing resin powder of carbon P is not more than 0.4mm, and the particle size of the boron carbide is not more than 0.044 mm.
5. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the grain size of the yttrium oxide is not more than 0.044 mm.
6. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the grain diameter of the nano Fe powder is not more than 80 nm.
7. The magnesia carbon brick for the hot spot on the wall of the electric arc furnace according to claim 1, wherein: the binding agent is thermosetting phenolic resin.
CN202011361768.3A 2020-11-27 2020-11-27 Magnesium carbon brick for hot spot area of furnace wall of electric arc furnace Pending CN112479684A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113336557A (en) * 2021-05-12 2021-09-03 江苏苏嘉集团新材料有限公司 Antioxidant high-adhesion magnesia carbon brick and preparation method thereof
CN114477962A (en) * 2022-03-10 2022-05-13 郑州振东科技有限公司 Slag-bonding-free ladle lining brick for smelting aluminum killed steel
CN116003143A (en) * 2022-12-20 2023-04-25 内蒙古第一机械集团股份有限公司 Preparation method for improving MgO-C brick performance by modified phenolic resin
WO2024001160A1 (en) * 2022-12-23 2024-01-04 华北理工大学 Expanded graphite/carbon nanotube composite material, and preparation method therefor and use thereof

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CN102584304A (en) * 2012-03-15 2012-07-18 长兴明天炉料有限公司 Prefabricated member and large blast furnace swing spout employing same
CN105585322A (en) * 2015-12-21 2016-05-18 洛阳利尔耐火材料有限公司 Slag-corrosion-resistant magnesite-spinel brick and preparation method thereof
CN109020571A (en) * 2018-08-27 2018-12-18 海城利尔麦格西塔材料有限公司 A kind of anti-erosion magnesia carbon brick and preparation method thereof
CN110451932A (en) * 2019-08-27 2019-11-15 北京利尔高温材料股份有限公司 A kind of Ladle slag line magnesia carbon brick
CN110922167A (en) * 2019-12-05 2020-03-27 江苏苏嘉集团新材料有限公司 Magnesia carbon brick added with rare earth oxide

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Application publication date: 20210312