CN102241521A - High-temperature wear-resistance brick and casting method thereof - Google Patents

High-temperature wear-resistance brick and casting method thereof Download PDF

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Publication number
CN102241521A
CN102241521A CN2010101714477A CN201010171447A CN102241521A CN 102241521 A CN102241521 A CN 102241521A CN 2010101714477 A CN2010101714477 A CN 2010101714477A CN 201010171447 A CN201010171447 A CN 201010171447A CN 102241521 A CN102241521 A CN 102241521A
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Prior art keywords
brick
temperature
raw
zro
cao
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CN2010101714477A
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Inventor
赵建国
徐宝奎
李起胜
董建国
刘兆兴
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ZHENGZHOU ZHENZHONG ELECTRIC ZIRCONIUM MELTING INDUSTRY Co Ltd
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ZHENGZHOU ZHENZHONG ELECTRIC ZIRCONIUM MELTING INDUSTRY Co Ltd
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Priority to CN2010101714477A priority Critical patent/CN102241521A/en
Publication of CN102241521A publication Critical patent/CN102241521A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a high-temperature wear-resistance brick, which is prepared from a raw material comprising the following chemical components in form of oxide in part by weight: 70 to 75 parts of Al2O3, 17 to 22 parts of SiO2, 5 to 7 parts of ZrO2 and Hf2O, 0.9 and 1.2 parts of Na2O, and 0 to 5 parts of Fe2O3, TiO2, CaO and MgO. The crystalline phase of the product consists of 38 to 45 percent of corundum, 38 to 45 percent of mullite, 5 to 7 percent of monoclinic zirconia and the balance of a glass phase. The refractoriness of the high-temperature wear-resistance brick prepared by the invention is above 1,750 DEG C, the pressure strength of the high-temperature wear-resistance brick is over 250MPa, and the high-temperature wear-resistance brick can be well used on a part where a wear-resistance and high-temperature-resistance material is required, and particularly the high-temperature wear-resistance brick can be used for building liner of a rotary calcining furnace to greatly improve the service life and economic benefit of the rotary calcining furnace. The invention also discloses a casting method of the high-temperature wear-resistance brick.

Description

A kind of high-temperature wearable brick and casting method thereof
Technical field
The present invention relates to a kind of abrasive brick, be specifically related to a kind of high-temperature wearable brick and casting method thereof.
Background technology
At present, the tapping platform of the walking beam furnace of the slide brick of metallurgical pusher-type furnace or the tapping of employing tapping platform, high temperature in the time of should bearing the steel billet heating, wearing and tearing in the time of also will bearing the steel billet slip, the working conditions of refractory products is very harsh, the product of these positions employings mainly contains the beautiful brick of chromium steel, mullite brick, zircon corundum brick etc. at present, because the beautiful brick of chromium steel contains the chromium element, very easily cause environmental pollution, mullite brick good thermal shock but wear no resistance, zircon corundum brick then are that wear resistance is good but heat-shock resistance is poor.
Summary of the invention
The technical problem to be solved in the present invention is that the wear resistance and the heat-shock resistance of refractory products is poor, a kind of high-temperature wearable brick and casting method thereof.
Technical scheme of the present invention is: a kind of high-temperature wearable brick, and it comprises the raw material of following chemical ingredients, represents with the parts by weight based on oxide compound:
Al 2O 3:70~75;
SiO 2:17~22;
ZrO 2+Hf 2O:5~7;
Na 2O:0.9~1.2;
Fe 2O 3+TiO 2+CaO+MgO:0~5。
Described high-temperature wearable brick preferably includes the raw material of following chemical ingredients, represents with the parts by weight based on oxide compound:
Al 2O 3:72~74;
SiO 2:18~21;
ZrO 2+Hf 2O:5~6;
Na 2O:1.0~1.1;
Fe 2O 3+TiO 2+CaO:0~5。
Described Al 2O 3Derive from bauxitic clay grog, kaolinite grog, mullite synthesizing material, Al 2O 3〉=99% commercial alumina powder or Al 2O 3In 〉=99.3% the calcining lapis amiridis any one, Al 2O 3The granularity of raw material is 1~30mm; Described ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The zircon sand of O 〉=65.5% or ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%; Described Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate; Described CaO derives from the calcite of CaO 〉=55.5%.
Described Al 2O 3The granularity of raw material is preferably 1~5mm.
The casting method of described high-temperature wearable brick, its step is as follows:
(1) raw material is mixed in mixing machine, form admixtion;
(2) admixtion is joined in the electric arc furnace, under 1800~2500 ℃ condition, melted 60~150 minutes, form liquation;
(3) high temperature solution is cast in the high-temperature resistance die, insulation annealing is made the high-temperature wearable brick.
High-temperature resistance die is any one in corundum mould, graphite jig, the silica sand mould in the described step (3).
The speed of insulation annealing is 10~15 ℃/hour in the described step (3).
The invention has the beneficial effects as follows: the existence of a large amount of aluminum oxide all is essential with generating mullite with the silicon oxide reaction for generating corundum mutually mutually among the present invention.The existence of silicon-dioxide is the necessary composition that generates the mullite phase, is again that formation intergranular glassy phase is necessary.Described intergranular glassy phase can effectively be alleviated the stress relief of product in the crystallisation by cooling process, slows down product and cracks.Sodium oxide have the formation that helps glassy phase, zirconic existence is essential for improving use temperature and increasing wear resistance.The existence of doping agent had both helped forming better the intergranular glassy phase, the wear resistance at elevated temperature of the least possible again destruction product.Product crystalline phase of the present invention consists of: corundum: 38~45%, and mullite: 38~45%, the monocline zirconium: 5~7%, glassy phase is a surplus.The high-temperature wearable brick of the present invention's preparation, refractoriness is higher than 1750 ℃, and ultimate compression strength is greater than 250Mpa.Product of the present invention combines the advantage of fused cast mullite brick and zircon corundum brick, a kind of novel product of learning from other's strong points to offset one's weaknesses and forming.Contained mullite can effectively be resisted temperature variation does not mutually burst product, corundum mutually and the monocline zirconium abrasion resistance that then has excellence mutually, but significant prolongation work-ing life.The present invention can effectively replace sintered products, and product of the present invention can well be used for needing to adopt the position of Wear-resistant, high-temperature resistant material, specifically also can be used for making the rotary calcining inner lining of furnace, increases the service life greatly, increases economic efficiency.
Embodiment
Embodiment 1
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 70, SiO 2: 17, ZrO 2+ Hf 2O:5, Na 2O:0.9, Fe 2O 3+ TiO 2+ CaO+MgO:2, Al 2O 3Derive from the bauxitic clay grog, Al 2O 3The granularity of raw material is 30mm; ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The zircon sand of O 〉=65.5%; Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 500kg that feeds in raw material produced a stove in per 60 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed in mixing machine, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 60 minutes under 2500 ℃ condition, forms liquation;
(3) high temperature solution is cast in the corundum mould, insulation annealing, annealed speed is 10 ℃/hour, makes the high-temperature wearable brick.
Embodiment 2
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 75, SiO 2: 22, ZrO 2+ Hf 2O:7, Na 2O:1.2, Fe 2O 3+ TiO 2+ CaO+MgO:5, Al 2O 3Derive from the kaolinite grog, Al 2O 3The granularity of raw material is 1mm; ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%; Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate; CaO derives from the calcite of CaO 〉=55.5%, and every stove 1200kg that feeds in raw material produced a stove in per 130 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, under 1800 ℃ condition, melted 60~150 minutes, form liquation;
(3) high temperature solution is cast in the graphite jig, insulation annealing, annealed speed is 15 ℃/hour, makes the high-temperature wearable brick.
Embodiment 3
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 72, SiO 2: 18, ZrO 2+ Hf 2O:6, Na 2O:1.0, Fe 2O 3+ TiO 2+ CaO+MgO:3, Al 2O 3Derive from the mullite synthesizing material, Al 2O 3The granularity of raw material is 5mm; ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate; Described CaO derives from the calcite of CaO 〉=55.5%, and every stove 500kg that feeds in raw material produced a stove in per 60 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 100 minutes under 2000 ℃ condition, forms liquation;
(3) high temperature solution is cast in the silica sand mould, insulation annealing, annealed speed is 12 ℃/hour, makes the high-temperature wearable brick.
Embodiment 4
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 74, SiO 2: 21, ZrO 2+ Hf 2O:7, Na 2O:1.1, Fe 2O 3+ TiO 2+ CaO+MgO:2, Al 2O 3Derive from Al 2O 3〉=99% commercial alumina powder, Al 2O 3The granularity of raw material is 10mm, ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The zircon sand of O 〉=65.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 1000kg that feeds in raw material produced a stove in per 90 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 120 minutes under 2200 ℃ condition, forms liquation;
(3) high temperature solution is cast in corundum mould, graphite jig, the silica sand mould, insulation annealing, annealed speed is 12 ℃/hour, makes the high-temperature wearable brick.
Embodiment 5
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 73, SiO 2: 18, ZrO 2+ Hf 2O:5, Na 2O:0.9, Fe 2O 3+ TiO 2+ CaO+MgO:1, Al 2O 3Derive from Al 2O 3〉=99.3% calcining lapis amiridis, Al 2O 3The granularity of raw material is 20mm, ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The zircon sand of O 〉=65.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 600kg that feeds in raw material produced a stove in per 60 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 80 minutes under 2400 ℃ condition, forms liquation;
(3) high temperature solution is cast in corundum mould, graphite jig, the silica sand mould, insulation annealing, annealed speed is 10 ℃/hour, makes the high-temperature wearable brick.
Embodiment 6
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 75, SiO 2: 22, ZrO 2+ Hf 2O:7, Na 2O:1.0, Fe 2O 3+ TiO 2+ CaO+MgO:3, Al 2O 3Derive from Al 2O 3〉=99.3% calcining lapis amiridis, Al 2O 3The granularity of raw material is 5mm; ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 1200kg that feeds in raw material produced a stove in per 150 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 90 minutes under 2000 ℃ condition, forms liquation;
(3) high temperature solution is cast in the corundum mould, insulation annealing, annealed speed is 15 ℃/hour, makes the high-temperature wearable brick.
Embodiment 7
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 74, SiO 2: 18, ZrO 2+ Hf 2O:6, Na 2O:1.2, Fe 2O 3+ TiO 2+ CaO+MgO:3, Al 2O 3Derive from the mullite synthesizing material, Al 2O 3The granularity of raw material is 8mm, ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 800kg that feeds in raw material produced a stove in per 80 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 120 minutes under 2500 ℃ condition, forms liquation;
(3) high temperature solution is cast in the graphite jig, insulation annealing, annealed speed is 15 ℃/hour, makes the high-temperature wearable brick.
Embodiment 8
A kind of high-temperature wearable brick calculates the weight of raw material according to following chemical ingredients, represents with the parts by weight based on oxide compound: Al 2O 3: 72, SiO 2: 18, ZrO 2+ Hf 2O:7, Na 2O:1.1, Fe 2O 3+ TiO 2+ CaO+MgO:1, Al 2O 3Derive from Al 2O 3〉=99% commercial alumina powder, Al 2O 3The granularity of raw material is 15mm, ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%, Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate, CaO derives from the calcite of CaO 〉=55.5%, and every stove 1000kg that feeds in raw material produced a stove in per 120 minutes.
The casting method of high-temperature wearable brick, its step is as follows:
(1) raw material is mixed, form admixtion;
(2) admixtion is joined in the electric arc furnace, fusing is 100 minutes under 2500 ℃ condition, forms liquation; (3) high temperature solution is cast in the silica sand mould, insulation annealing, annealed speed is 10~15 ℃/hour, makes the high-temperature wearable brick.

Claims (7)

1. high-temperature wearable brick, it is characterized in that: it comprises the raw material of following chemical ingredients, represents with the parts by weight based on oxide compound:
Al 2O 3:70~75;
SiO 2:17~22;
ZrO 2+Hf 2O:5~7;
Na 2O:0.9~1.2;
Fe 2O 3+TiO 2+CaO+MgO:0~5。
2. high-temperature wearable brick according to claim 1 is characterized in that: it comprises the raw material of following chemical ingredients, represents with the parts by weight based on oxide compound:
Al 2O 3:72~74;
SiO 2:18~21;
ZrO 2+Hf 2O:5~6;
Na 2O:1.0~1.1;
Fe 2O 3+TiO 2+CaO:0~5。
3. high-temperature wearable brick according to claim 1 and 2 is characterized in that: described Al 2O 3Derive from bauxitic clay grog, kaolinite grog, mullite synthesizing material, Al 2O 3〉=99% commercial alumina powder or Al 2O 3In 〉=99.3% the calcining lapis amiridis any one, Al 2O 3The granularity of raw material is 1~30mm; Described ZrO 2+ Hf 2O derives from ZrO 2+ Hf 2The zircon sand of O 〉=65.5% or ZrO 2+ Hf 2The desilicated zirconia of O 〉=98.5%; Described Na 2O derives from Na 2CO 3〉=99% one-level industrial sodium carbonate; Described CaO derives from the calcite of CaO 〉=55.5%.
4. high-temperature wearable brick according to claim 3 is characterized in that: described Al 2O 3The granularity of raw material is 1~5mm.
5. the casting method of high-temperature wearable brick as claimed in claim 1 or 2 is characterized in that its step is as follows:
(1) raw material is mixed in mixing machine, form admixtion;
(2) admixtion is joined in the electric arc furnace, under 1800~2500 ℃ condition, melted 60~150 minutes, form liquation;
(3) high temperature solution is cast in the high-temperature resistance die, insulation annealing is made the high-temperature wearable brick.
6. the casting method of high-temperature wearable brick according to claim 5 is characterized in that: high-temperature resistance die is any one in corundum mould, graphite jig, the silica sand mould in the described step (3).
7. the casting method of high-temperature wearable brick according to claim 5 is characterized in that: the speed of insulation annealing is 10~15 ℃/hour in the described step (3).
CN2010101714477A 2010-05-13 2010-05-13 High-temperature wear-resistance brick and casting method thereof Pending CN102241521A (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103508743A (en) * 2013-09-25 2014-01-15 刘超 High-temperature refractory
CN104588566A (en) * 2013-11-04 2015-05-06 河南金耐源新材料科技有限公司 Ceramic sand and producing method thereof
CN104909781A (en) * 2015-06-30 2015-09-16 郑州远东耐火材料有限公司 Production method of electrically fused brick for tongue arch of glass kiln
CN105503218A (en) * 2015-12-30 2016-04-20 宜兴市集创新材料科技有限公司 Anti-stripping refractory brick and preparation method thereof
WO2016058162A1 (en) * 2014-10-16 2016-04-21 李世光 Wall brick for buildings and preparation method therefor and wall composed therefrom
CN105683124A (en) * 2013-07-26 2016-06-15 圣戈班研究中心与欧洲研究院 Product having a high alumina content
CN106219075A (en) * 2016-09-28 2016-12-14 合肥海宝节能科技有限公司 The insulating lining of energy-saving heat preserving case
CN106241069A (en) * 2016-09-28 2016-12-21 合肥海宝节能科技有限公司 Energy-saving heat preserving case
CN106429035A (en) * 2016-09-28 2017-02-22 合肥海宝节能科技有限公司 Heat-insulation lining material
CN106426513A (en) * 2016-09-28 2017-02-22 合肥海宝节能科技有限公司 Manufacturing method of insulation liner of energy saving insulation box
CN107298539A (en) * 2016-12-30 2017-10-27 江苏苏博特新材料股份有限公司 A kind of concrete efficient impact-resistant wearable agent and preparation method thereof
CN107759236A (en) * 2016-08-20 2018-03-06 郑州东方安彩耐火材料有限公司 The production technology of fused cast mullite brick
CN107840674A (en) * 2017-11-23 2018-03-27 焦作金鑫恒拓新材料股份有限公司 A kind of wear-resisting slide brick of high thermal shock and preparation method thereof
CN110304910A (en) * 2019-07-12 2019-10-08 郑州振中电熔新材料有限公司 A kind of high-performance founding abrasive brick and its casting method
CN111517765A (en) * 2020-04-29 2020-08-11 洛阳大洋高性能材料有限公司 Production process and production equipment of high-purity corundum cast brick

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CN105683124B (en) * 2013-07-26 2017-10-27 圣戈班研究中心与欧洲研究院 Product with high alumina content
CN105683124A (en) * 2013-07-26 2016-06-15 圣戈班研究中心与欧洲研究院 Product having a high alumina content
CN103508743B (en) * 2013-09-25 2019-01-29 新沂北美高科耐火材料有限公司 High-temperature refractory
CN103508743A (en) * 2013-09-25 2014-01-15 刘超 High-temperature refractory
CN104588566A (en) * 2013-11-04 2015-05-06 河南金耐源新材料科技有限公司 Ceramic sand and producing method thereof
WO2016058162A1 (en) * 2014-10-16 2016-04-21 李世光 Wall brick for buildings and preparation method therefor and wall composed therefrom
CN104909781A (en) * 2015-06-30 2015-09-16 郑州远东耐火材料有限公司 Production method of electrically fused brick for tongue arch of glass kiln
CN105503218A (en) * 2015-12-30 2016-04-20 宜兴市集创新材料科技有限公司 Anti-stripping refractory brick and preparation method thereof
CN107759236A (en) * 2016-08-20 2018-03-06 郑州东方安彩耐火材料有限公司 The production technology of fused cast mullite brick
CN106429035A (en) * 2016-09-28 2017-02-22 合肥海宝节能科技有限公司 Heat-insulation lining material
CN106426513A (en) * 2016-09-28 2017-02-22 合肥海宝节能科技有限公司 Manufacturing method of insulation liner of energy saving insulation box
CN106241069A (en) * 2016-09-28 2016-12-21 合肥海宝节能科技有限公司 Energy-saving heat preserving case
CN106219075A (en) * 2016-09-28 2016-12-14 合肥海宝节能科技有限公司 The insulating lining of energy-saving heat preserving case
CN107298539A (en) * 2016-12-30 2017-10-27 江苏苏博特新材料股份有限公司 A kind of concrete efficient impact-resistant wearable agent and preparation method thereof
CN107840674A (en) * 2017-11-23 2018-03-27 焦作金鑫恒拓新材料股份有限公司 A kind of wear-resisting slide brick of high thermal shock and preparation method thereof
CN110304910A (en) * 2019-07-12 2019-10-08 郑州振中电熔新材料有限公司 A kind of high-performance founding abrasive brick and its casting method
CN111517765A (en) * 2020-04-29 2020-08-11 洛阳大洋高性能材料有限公司 Production process and production equipment of high-purity corundum cast brick

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