CN105645977A - Air brick for special steel refining and preparation method thereof - Google Patents

Air brick for special steel refining and preparation method thereof Download PDF

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Publication number
CN105645977A
CN105645977A CN201610009754.2A CN201610009754A CN105645977A CN 105645977 A CN105645977 A CN 105645977A CN 201610009754 A CN201610009754 A CN 201610009754A CN 105645977 A CN105645977 A CN 105645977A
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China
Prior art keywords
corundum
gas permeable
permeable brick
special steel
fine powder
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CN201610009754.2A
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Inventor
崔庆阳
李有奇
寇志奇
赵继增
吴林林
卞光辉
李江涛
王冰伟
马超辉
林莎
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Luoyang Lier Refractory Materials Co Ltd
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Luoyang Lier Refractory Materials Co Ltd
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Priority to CN201610009754.2A priority Critical patent/CN105645977A/en
Publication of CN105645977A publication Critical patent/CN105645977A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22DCASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D41/00Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
    • B22D41/02Linings
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B35/00Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
    • C04B35/01Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
    • C04B35/10Shaped 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
    • C04B35/101Refractories from grain sized mixtures
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21CPROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04Removing impurities by adding a treating agent
    • C21C7/072Treatment with gases
    • CCHEMISTRY; METALLURGY
    • C04CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
    • C04BLIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
    • C04B2235/00Aspects relating to ceramic starting mixtures or sintered ceramic products
    • C04B2235/02Composition of constituents of the starting material or of secondary phases of the final product
    • C04B2235/30Constituents and secondary phases not being of a fibrous nature
    • C04B2235/32Metal oxides, mixed metal oxides, or oxide-forming salts thereof, e.g. carbonates, nitrates, (oxy)hydroxides, chlorides
    • C04B2235/3231Refractory metal oxides, their mixed metal oxides, or oxide-forming salts thereof
    • C04B2235/3244Zirconium oxides, zirconates, hafnium oxides, hafnates, or oxide-forming salts thereof

Abstract

The invention relates to an air brick for special steel refining, particularly an air brick for special steel refining and a preparation method thereof. The air brick is composed of the following components in percentage by mass: 60-75% of corundum particle and fine powder, 6-11% of activated alumina micropowder, 8-20% of electrofused chrome corundum material, 3-8% of pure calcium aluminate cement, 2-4% of zirconium oxide and 0.1-0.6% of additional water reducing agent. The air brick is suitable for smelting of special steel grades, and has the advantages of excellent high-temperature properties, excellent air permeability, low breaking possibility, favorable high-temperature folding strength and favorable thermal shock resistance. By adopting the curing schedule, the cement in the material can be sufficiently hydrated, thereby enhancing the strength of the semifinished product, and avoiding generating microcracks of possible collisions in the transportation process (the cracks can further extend in the high-temperature calcination process). The firing schedule is adopted to prevent the air brick cracks from generation and enhance the yield of the air bricks.

Description

A kind of special steel refining gas permeable brick and its preparation method
[technical field]
The present invention relates to a kind of special steel refining gas permeable brick, it relates to a kind of special steel refining gas permeable brick and its preparation method.
[background technology]
In iron and steel metallurgical industry, after molten steel enters ladle, by being blown into rare gas element in molten steel, reach the object stirring molten steel, can evenly molten steel temperature and chemistry composition, promoting inclusion floating or control inclusion morphology, be the technology that modern metallurgy industry generally adopts, the effect of gas permeable brick shown by metallurgy industry is more and more important.
Along with the continuous growth of Clean Steel and high-quality steel demand, external refining ratio increases, and the refining time of molten steel increases thereupon, to work-ing life of gas permeable brick, blow out rate, Air permenbility require also more and more higher, the working load that gas permeable brick bears strengthens; When smelting special steel grade, in most cases gas permeable brick is due to reasons such as molten steel or the infiltration of slag, vertical transverse breakage, and blowing rate reduces, it may also be useful to the life-span shortens, the Working environment of gas permeable brick is more harsh, and current gas permeable brick has become restriction ladle life and improved the bottleneck factor with low cost movement.
[summary of the invention]
In order to the deficiency overcome in background technology, the present invention discloses a kind of special steel refining gas permeable brick and its preparation method, it is achieved that have excellent high-temperature behavior and permeability, and disconnected brick probability is little, high temperature break resistant intensity and the good object of heat-shock resistance.
In order to realize the object of foregoing invention, the present invention adopts following technical scheme:
A kind of special steel refining gas permeable brick, is made up of by mass percent following compositions:
Described special steel refining gas permeable brick, described corundum in granules and fine powder are the mixing of one or more in plate diamond spar, fused white corundum and compact alumina, wherein plate diamond spar Al2O3Content >=99.7%, fused white corundum Al2O3Content >=99.2%, compact alumina Al2O3Content >=99.0%.
Described special steel refining gas permeable brick, described electric smelting chromium corundum material granularity is 1��0mm particle and/or fine powder, wherein Cr2O3Content is 10��90%; Al2O3+Cr2O3>=98%.
Described special steel refining gas permeable brick, described corundum fine powder, electric smelting chromium corundum material powder particle size are 180 orders, 200 orders, 240 orders, 320 orders, 325 orders with the mixing of arbitrary proportion.
Described special steel refining gas permeable brick, described Reactive alumina, Al2O3Content >=99.5%, granularity is 2��5 ��m.
Described special steel refining gas permeable brick, described pure calcium aluminate cement, CaO content is 24��31%, Al2O3+ CaO >=97%.
Described special steel refining gas permeable brick, the granularity of described zirconium white is 2-5 ��m, ZrO2Content >=99.5%.
Described special steel refining gas permeable brick, described water reducer is the mixing of one or more in poly carboxylic acid or dispersed alumina series high-efficiency water-reducing agent.
A preparation method for special steel refining gas permeable brick, described method comprises the following steps:
(1) prepare burden: according to the ratio of described each component, take corundum in granules, electric smelting chromium corundum particle and fine powder, corundum fine powder, Reactive alumina, pure calcium aluminate cement, water reducer respectively, and pack respectively;
(2) batch mixing: first the corundum of corundum fine powder, Reactive alumina, electric smelting chromium corundum fine powder, pure calcium aluminate cement, water reducer, granularity��1mm and/or electric smelting chromium corundum particle and fine powder material are added in mixing pan, batch mixing is to full and uniform; Add granularity >=1mm corundum and/or electric smelting chromium corundum particle and fine powder material again to mix in advance, mix rear sealed storage for subsequent use;
(3) shaping: the raw material after batch mixing adds 3.6��3.8% clean tap water, to be mixed evenly after join mold vibration and be shaped to adobe;
(4) maintenance: the adobe after shaping is 20��50 DEG C in temperature, humidity is maintenance demoulding after 4��12 hours under 60��80% conditions; Natural curing 12-36 hour in atmosphere after the demoulding; Again at 20��60 DEG C, humidity is maintenance 12-24 hour under 70��90% conditions;
(5) dry: the sample after shaping in dry kiln baking dehydration to constant weight;
(6) burn till: gas permeable brick green compact are burnt till in high temperature kiln, with speed rapid temperature increases to 200��300 DEG C of 30��50 DEG C/h, and it is incubated 5��12 hours; With ramp to 1000��1200 DEG C of 60��150 DEG C/h, and it is incubated 4��8 hours; With ramp to 1200��1400 DEG C of 60��200 DEG C/h, and it is incubated 4��12 hours; With ramp to 1500��1650 DEG C of 20��50 DEG C/h, and it is incubated 10��20 hours, cools to room temperature with the furnace and obtain ventilative adobe;
(7) bag steel bushing and welding: chamotte smeared by the gas permeable brick conical surface after burning till, and puts steel bushing, and the thickness ensureing chamotte is 0.3��2mm; After baking in 4-8 hour, will be connected with metal tail pipe with gas permeable brick steel bushing with metal cover board, and use argon arc welding to weld;
(8) pack, accumulating: using plastic seal pack finished product, then with wooden-box package, deposit in shady and cool place storage and transport, the quality guaranteed period is more than 48 months.
Owing to adopting technique scheme, the present invention has following useful effect:
1, the present invention has that amount of water is low, mobility is excellent, has good workability;
2, gas permeable brick of the present invention is suitable for the smelting of special steel grade, has excellent high-temperature behavior and permeability, and disconnected brick probability is little, and high temperature break resistant intensity and heat-shock resistance are better;
3, the present invention utilizes chromic oxide to add with the form of electric smelting chromium corundum material, chromic oxide exists with big crystallization chromic oxide, aluminium chromium eutectic state in electric smelting chromium corundum, ensure being uniformly distributed of chromic oxide, contacted in slag process at gas permeable brick, it is possible to greatly improve the anti-erosion effect of material; Avoiding the existence because of too much chromic oxide, corundum crystal grain-growth speed is subject to serious impact simultaneously, also will produce internal stress, thus reduce the physicals of material; Add zirconium white simultaneously, the aluminum oxide utilized under high temperature in zirconium white and material, the calcium oxide in pure calcium aluminate cement occur reaction to generate zircon corundum and calcium zirconate respectively, certain volumetric expansion can be produced, produce a small amount of tiny crack in the material, the heat-shock resistance of material is improved by microcrack evolution equation mechanism, chromium corundum exists more aluminium chromium eutectic, it is possible to the high temperature break resistant intensity of strongthener greatly;
4, the preparation method of gas permeable brick of the present invention adopt conservation system can make the abundant aquation of the cement in material, to improve half-finished intensity, avoid to collide with in handling process and producing tiny crack, cause crackle in high-temperature calcination process to further expand;Preparation method adopt calcining system can have the generation preventing gas permeable brick crackle, it is to increase the yield rate of gas permeable brick.
[embodiment]
Can explaining the present invention in more detail by the following examples, the object of open the present invention is intended to protect all changes and improvements in the scope of the invention, and the present invention is not limited to the following examples:
Embodiment 1
The percentage ratio preparing ladle gas permeable brick raw material for the present embodiment is:
Plate diamond spar particle diameter is that 6��3mm, 3��1mm, 1��0mm are respectively 30%, 20%, 15%; 325 object plate diamond spar fine powders 9%; Reactive alumina 6%; 325 object electric smelting chromium corundum fine powders 12% (aluminum oxide/chromic oxide=80/18); Zirconium white 3%; Pure calcium aluminate cement 5%; Dispersed alumina high efficiency water reducing agent (additional) 0.5%.
The preparation method of the present embodiment, with comparative example 1, adds the water of solid materials total mass 3.66%.
Gained air brick of steel ladle uses result:
Certain steel mill 150 tons of ladles use at home, smelt special steel grade, average use number of times reaches more than 18 times, refining time was more than 100 hours, in use procedure, blowing rate reaches 100%, in use procedure, without tomography, working lining, without peeling off, situation produces gas permeable brick, and tradition gas permeable brick improves about 30% work-ing life relatively, can meet field demand completely.
Embodiment 2
The percentage ratio preparing ladle gas permeable brick raw material for the present embodiment is:
Plate diamond spar particle diameter is that percentage ratio shared by 6��3mm, 3��1mm, 1��0mm is respectively 30%, 15% and 16%; White fused alumina fine powder 200 order 3%; Plate diamond spar fine powder 325 order 5%; Reactive alumina 8%; Electric smelting chromium corundum fine powder 0.5��0mm and 325 order fine powders are respectively 5%, 9% (aluminum oxide/chromic oxide=70/28); Zirconium white 3%; Pure calcium aluminate cement 6%; Additional dispersed alumina high efficiency water reducing agent 0.3%.
The preparation process of the present embodiment is as follows:
(1) first corundum 1��0mm and fine powder, Reactive alumina, electric smelting chromium corundum 0.5��0mm particle and fine powder, pure calcium aluminate cement, dispersed alumina high efficiency water reducing agent are stirred 10 minutes, add corundum in granules material again, continue batch mixing to full and uniform, add clean tap water, add-on is the 3.66% of raw material weight, stirs evenly;
(2) the mud material being stirred is added in mould, vibratory compaction;
(3) adobe after shaping is 30 DEG C in temperature, and humidity is maintenance demoulding after 8 hours under 60% condition; Natural curing 12 hours in atmosphere; Again at 30 DEG C, humidity is maintenance 24 hours under 90% condition;
(4) dry in 110 DEG C �� 24h in dry kiln, carry out Performance Detection after burning through 1550 DEG C.
Gained air brick of steel ladle uses result:
Certain steel mill 60 tons of ladles use at home, smelt special steel grade, average use number of times reaches more than 23 times, refining time was more than 100 hours, in use procedure, blowing rate reaches 100%, in use procedure, without tomography, working lining, without peeling off, situation produces gas permeable brick, and tradition gas permeable brick improves about 30% work-ing life relatively, can meet field demand completely.
Embodiment 3
The percentage ratio preparing ladle gas permeable brick for the present embodiment is:
Plate diamond spar particle diameter is that percentage ratio shared by 6��3mm, 3��1mm, 1��0mm is respectively 33%, 13% and 10%; Plate diamond spar fine powder 325 order 7%; White fused alumina 3��1mm is 5%; Reactive alumina 6%; Electric smelting chromium corundum fine powder 1��0mm and 325 order fine powders are respectively 7%, 10% (aluminum oxide/chromic oxide=60/38), the micro-powder 3% of zirconium white;Pure calcium aluminate cement 6%; The additional high efficiency water reducing agent 0.5% of dispersed alumina.
The present embodiment preparation process, with embodiment 2, adds the water of solid materials total mass 3.72%.
Gained air brick of steel ladle uses result:
Certain steel mill 120 tons of ladles use at home, smelt special steel grade, average use number of times reaches more than 30 times, refining time was more than 150 hours, in use procedure, blowing rate reaches 100%, in use procedure, without tomography, working lining, without peeling off, situation produces gas permeable brick, and tradition gas permeable brick improves about 20% work-ing life relatively, can meet field demand completely.
Embodiment 4
The percentage ratio preparing ladle gas permeable brick for the present embodiment is:
Plate diamond spar particle diameter is that percentage ratio shared by 6��3mm, 3��1mm is respectively 35%, 23%; Plate diamond spar fine powder 325 order 7%; Reactive alumina 6%; Electric smelting chromium corundum fine powder 1��0mm and 325 order fine powders are respectively 12%, 8% (aluminum oxide/chromic oxide=80/18), the micro-powder 3% of zirconium white; Pure calcium aluminate cement 6%; High-efficiency water-reducing agent of poly-carboxylic acid 0.15%.
The present embodiment preparation process, with embodiment 2, adds the water of solid materials total mass 3.70%.
Gained air brick of steel ladle uses result:
Certain steel mill 180 tons of ladles use at home, smelt special steel grade, average use number of times reaches more than 25 times, refining time was more than 1200 hours, in use procedure, blowing rate reaches 100%, in use procedure, without tomography, working lining, without peeling off, situation produces gas permeable brick, and tradition gas permeable brick improves about 13% work-ing life relatively, can meet field demand completely.
Comparative example
Plate diamond spar 6��3mm, 3��1mm, 1��0mm are respectively 30%, 25%, 10%; Plate diamond spar fine powder 325 order 9%; Sintering spinel 1��0mm, 325 orders are respectively 5%, 10%; Reactive alumina 6%; Pure calcium aluminate cement 3%; Chromoxide green is 2%. Dispersed alumina high efficiency water reducing agent (additional) 0.5%.
The preparation process of this comparative example is as follows:
(1) first corundum 1��0mm and fine powder, Reactive alumina, electric smelting chromium corundum fine powder, pure calcium aluminate cement, water reducer and dispersed alumina high efficiency water reducing agent (additional) are stirred 5 minutes, add corundum in granules material again, continue batch mixing to full and uniform, it is dry mixed 10 minutes, add clean tap water, add-on is about the 4.40% of raw material weight, regulates the humidity of mud material, then kneading 3��5 minutes;
(2) the mud material being stirred is added in mould, vibratory compaction;
(3) adobe after shaping is 35 DEG C in temperature, and humidity is maintenance demoulding after 4 hours under 80% condition; Natural curing 12 hours in atmosphere; Again at 35 DEG C, maintenance 18 hours when humidity is 80% fixed temperature and humidity;
(4) dry in 110 DEG C �� 24h in dry kiln, carry out Performance Detection after burning through 1550 DEG C.
Comparative example and each embodiment institute detected test room physical and chemical index are as shown in the table:
Part not in the detailed description of the invention is prior art.
The embodiment selected herein in order to the goal of the invention of open the present invention, currently thinks to be suitable for, however, it should be understood that the present invention is intended to comprise all changes and the improvement that all belong to the embodiment in this design and invention scope.

Claims (9)

1. a special steel refining gas permeable brick, is characterized in that: be made up of by mass percent following compositions:
Corundum in granules and fine powder 60 ~ 75%;
Reactive alumina 6 ~ 11%;
Electric smelting chromium corundum material 8 ~ 20%;
Pure calcium aluminate cement 3 ~ 8%;
Zirconium white 2 ~ 4%;
Additional water reducer 0.1 ~ 0.6%.
2. special steel refining gas permeable brick according to claim 1, is characterized in that: described corundum in granules and fine powder are the mixing of one or more in plate diamond spar, fused white corundum and compact alumina, wherein plate diamond spar Al2O3Content >=99.7%, fused white corundum Al2O3Content >=99.2%, compact alumina Al2O3Content >=99.0%.
3. special steel refining gas permeable brick according to claim 1, is characterized in that: described electric smelting chromium corundum material granularity is 1 ~ 0mm particle and/or fine powder, wherein Cr2O3Content is 10 ~ 90%, Al2O3+Cr2O3��98%��
4. special steel refining gas permeable brick according to claim 1, is characterized in that: described corundum fine powder, electric smelting chromium corundum material powder particle size are 180 orders, 200 orders, 240 orders, 320 orders, 325 orders with the mixing of arbitrary proportion.
5. special steel refining gas permeable brick according to claim 1, is characterized in that: described Reactive alumina, Al2O3Content >=99.5%, granularity is 2 ~ 5 ��m.
6. special steel refining gas permeable brick according to claim 1, is characterized in that: described pure calcium aluminate cement, and CaO content is 24 ~ 31%, Al2O3+CaO��97%��
7. special steel refining gas permeable brick according to claim 1, is characterized in that: the granularity of described zirconium white is 2-5 ��m, ZrO2Content >=99.5%.
8. special steel refining gas permeable brick according to claim 1, is characterized in that: described water reducer is the mixing of one or more in poly carboxylic acid or dispersed alumina series high-efficiency water-reducing agent.
9. a preparation method for special steel refining gas permeable brick, is characterized in that: described method comprises the following steps:
(1) prepare burden: according to the ratio of described each component, take corundum in granules, electric smelting chromium corundum particle and fine powder, corundum fine powder, Reactive alumina, pure calcium aluminate cement, water reducer respectively, and pack respectively;
(2) batch mixing: first the corundum of corundum fine powder, Reactive alumina, electric smelting chromium corundum fine powder, pure calcium aluminate cement, water reducer, granularity��1mm and/or electric smelting chromium corundum particle and fine powder material are added in mixing pan, batch mixing is to full and uniform; Add granularity >=1mm corundum and/or electric smelting chromium corundum particle and fine powder material again to mix in advance, mix rear sealed storage for subsequent use;
(3) shaping: the raw material after batch mixing adds 3.6 ~ 3.8% clean tap water, to be mixed evenly after join mold vibration and be shaped to adobe;
(4) maintenance: the adobe after shaping is 20 ~ 50 DEG C in temperature, humidity is maintenance demoulding after 4 ~ 12 hours under 60 ~ 80% conditions; Natural curing 12-36 hour in atmosphere after the demoulding; Again at 20 ~ 60 DEG C, humidity is maintenance 12-24 hour under 70 ~ 90% conditions;
(5) dry: the sample after shaping in dry kiln baking dehydration to constant weight;
(6) burn till: gas permeable brick green compact are burnt till in high temperature kiln, with speed rapid temperature increases to 200 ~ 300 DEG C of 30 ~ 50 DEG C/h, and it is incubated 5 ~ 12 hours; With ramp to 1000 ~ 1200 DEG C of 60 ~ 150 DEG C/h, and it is incubated 4 ~ 8 hours; With ramp to 1200 ~ 1400 DEG C of 60 ~ 200 DEG C/h, and it is incubated 4 ~ 12 hours; With ramp to 1500 ~ 1650 DEG C of 20 ~ 50 DEG C/h, and it is incubated 10 ~ 20 hours, cools to room temperature with the furnace and obtain ventilative adobe;
(7) bag steel bushing and welding: chamotte smeared by the gas permeable brick conical surface after burning till, and puts steel bushing, and the thickness ensureing chamotte is 0.3 ~ 2mm;After baking in 4-8 hour, will be connected with metal tail pipe with gas permeable brick steel bushing with metal cover board, and use argon arc welding to weld;
(8) pack, accumulating: using plastic seal pack finished product, then with wooden-box package, deposit in shady and cool place storage and transport, the quality guaranteed period is more than 48 months.
CN201610009754.2A 2016-01-08 2016-01-08 Air brick for special steel refining and preparation method thereof Pending CN105645977A (en)

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CN107117951A (en) * 2017-05-27 2017-09-01 武汉科技大学 A kind of high-strength dispersive air brick and preparation method thereof
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
CN107352985A (en) * 2017-07-19 2017-11-17 合肥铭佑高温技术有限公司 A kind of glass furnace cooling section Corundum composite brick
CN107721443A (en) * 2017-11-01 2018-02-23 安徽马钢耐火材料有限公司 A kind of pink fused alumina cementitious matter and preparation method thereof
CN107892579A (en) * 2017-11-23 2018-04-10 淄博工陶耐火材料有限公司 Calcareous glass furnace molten tin bath suspended roof brick of aluminic acid and preparation method thereof
CN109265150A (en) * 2018-10-15 2019-01-25 郑州市瑞沃耐火材料有限公司 The prefabricated slide brick of heating furnace
CN109485441A (en) * 2019-01-10 2019-03-19 明光瑞尔非金属材料有限公司 A kind of blast furnace ceramic cup refractory material and preparation method thereof
CN109503182A (en) * 2018-12-24 2019-03-22 中国有色集团晋铝耐材有限公司 It is a kind of without siliceous gasification furnace dedicated pouring material and preparation method thereof
CN111233501A (en) * 2020-03-20 2020-06-05 河南中原黄金冶炼厂有限责任公司 Tuyere brick core for conveying redox gas in operation process of copper smelting anode refining furnace and preparation method thereof
CN111362677A (en) * 2020-03-17 2020-07-03 谢绪林 Environment-friendly chromium-free air brick and preparation method thereof
CN107746258B (en) * 2017-10-31 2020-09-04 营口四通高温新材料科技有限公司 Ultralow-linear-change baking-free air brick and preparation method and application thereof

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CN103553578A (en) * 2013-10-23 2014-02-05 洛阳利尔耐火材料有限公司 Air brick fired at low temperature by using gel and preparation process 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

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CN103553578A (en) * 2013-10-23 2014-02-05 洛阳利尔耐火材料有限公司 Air brick fired at low temperature by using gel and preparation process 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

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CN107117951A (en) * 2017-05-27 2017-09-01 武汉科技大学 A kind of high-strength dispersive air brick and preparation method thereof
CN107311675B (en) * 2017-07-12 2019-01-18 洛阳轩石新材料科技有限公司 A kind of air brick and preparation method thereof by the preparation of industry byproduct aluminium chromium slag
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
CN107352985A (en) * 2017-07-19 2017-11-17 合肥铭佑高温技术有限公司 A kind of glass furnace cooling section Corundum composite brick
CN107746258B (en) * 2017-10-31 2020-09-04 营口四通高温新材料科技有限公司 Ultralow-linear-change baking-free air brick and preparation method and application thereof
CN107721443A (en) * 2017-11-01 2018-02-23 安徽马钢耐火材料有限公司 A kind of pink fused alumina cementitious matter and preparation method thereof
CN107892579A (en) * 2017-11-23 2018-04-10 淄博工陶耐火材料有限公司 Calcareous glass furnace molten tin bath suspended roof brick of aluminic acid and preparation method thereof
CN107892579B (en) * 2017-11-23 2020-10-09 淄博工陶新材料集团有限公司 Calcium aluminate glass kiln tin bath suspended ceiling brick and preparation method thereof
CN109265150B (en) * 2018-10-15 2021-06-29 郑州市瑞沃耐火材料有限公司 Prefabricated slide rail brick for heating furnace
CN109265150A (en) * 2018-10-15 2019-01-25 郑州市瑞沃耐火材料有限公司 The prefabricated slide brick of heating furnace
CN109503182A (en) * 2018-12-24 2019-03-22 中国有色集团晋铝耐材有限公司 It is a kind of without siliceous gasification furnace dedicated pouring material and preparation method thereof
CN109485441A (en) * 2019-01-10 2019-03-19 明光瑞尔非金属材料有限公司 A kind of blast furnace ceramic cup refractory material and preparation method thereof
CN111362677A (en) * 2020-03-17 2020-07-03 谢绪林 Environment-friendly chromium-free air brick and preparation method thereof
CN111233501A (en) * 2020-03-20 2020-06-05 河南中原黄金冶炼厂有限责任公司 Tuyere brick core for conveying redox gas in operation process of copper smelting anode refining furnace and preparation method thereof

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