CN1424279A - Aluminum-carbon refractory material and its preparation - Google Patents
Aluminum-carbon refractory material and its preparation Download PDFInfo
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- CN1424279A CN1424279A CN 02131371 CN02131371A CN1424279A CN 1424279 A CN1424279 A CN 1424279A CN 02131371 CN02131371 CN 02131371 CN 02131371 A CN02131371 A CN 02131371A CN 1424279 A CN1424279 A CN 1424279A
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- aluminum
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- carbon refractory
- silicon carbide
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Abstract
A Alc refractory used for conticasting of steel features use of composite adhesive, liquid phenolic resin and powdered aluminium dihydrogen phosphate. Its advantages are excellent resistance to corrosion, flush and oxidation, and low cost.
Description
Technical field
The present invention relates to a kind of novel inorganic non-metallic material, especially relate to the aluminum-carbon refractory material, particularly combined binder bonded aluminum-carbon refractory material that in continuous casting steel machine is produced, use, the invention still further relates to the preparation method of above-mentioned refractory materials.
Background technology
The aluminum-carbon refractory material of continuous casting steel machine use at present, the carbon in the cast steel process in the material is dissolved by molten steel, produces decarburization, the Al after the decarburization
2O
3Body portion intensity reduces, and peels off along with washing away of molten steel, can bring the decarburization of a new round so again and peel off, so the damage of aluminum-carbon refractory material aggravates.In order to solve this difficult problem two approach are arranged, the one, add oxidation inhibitor, put forward the high-carbon resistance of oxidation; The 2nd, Al after the raising decarburization
2O
3The intensity of body portion.
In order to reduce the molten damage of aluminum-carbon refractory material in molten steel, improve the resistance to fouling of material, the inventor is through further investigation, found a kind of aluminum-carbon refractory material that still has higher-strength after decarburization and preparation method thereof, refractory materials of the present invention is applicable to makes long nozzle and submerged nozzle.
Summary of the invention
The purpose of this invention is to provide a kind of anti-erosion, oxidation resistant aluminum-carbon refractory material, particularly a kind of combined binder bonded aluminum-carbon refractory material.
Another object of the present invention provides the preparation method of above-mentioned refractory materials.
The raw material of combined binder bonded aluminum-carbon refractory material of the present invention is made up of (by weight percentage following component, as follows): crystalline flake graphite 10-35%, silicon carbide and metallic silicon power 1-10% (wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1), fused quartz 1-15%, fused zirconia-mullite 5-15%, white fused alumina 40-60%, its condition be above-mentioned component be combined into 100%.Also add the liquid phenolic resin of 8-12% of above-mentioned component total amount and the biphosphate aluminium powder form of 5-15% in addition.
The raw material of combined binder bonded aluminum-carbon refractory material of the present invention preferably is made up of following component: crystalline flake graphite 30%, silicon carbide and metallic silicon power 8% (wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1), fused quartz 10%, fused zirconia-mullite 10%, white fused alumina 42% also adds 10% liquid phenolic resin of above-mentioned component total amount and 12% biphosphate aluminium powder form in addition.
The raw material of another combined binder bonded aluminum-carbon refractory material of the present invention preferably is made up of following component: crystalline flake graphite 25%, silicon carbide and metallic silicon power 8% (wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1), fused quartz 5%, fused zirconia-mullite 10%, white fused alumina 52% also adds 10% liquid phenolic resin of above-mentioned component total amount and 10% biphosphate aluminium powder form in addition.
The raw material of another combined binder bonded aluminum-carbon refractory material of the present invention preferably is made up of following component: crystalline flake graphite 20%, silicon carbide and metallic silicon power 8% (wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1), fused quartz 2%, fused zirconia-mullite 10%, white fused alumina 60% also adds 10% liquid phenolic resin of above-mentioned component total amount and 8% biphosphate aluminium powder form in addition.
Each component in the above-mentioned raw materials all can have been bought on market, and liquid phenolic resin is a resol-214.
The preparation method of combined binder bonded aluminum-carbon refractory material of the present invention is earlier that above-mentioned solid particulate and powder mixes except liquid phenolic resin is even; add liquid phenolic resin again; (1000 rev/mins of granulations in high speed granulator; 12 minutes); particle diameter is reached below the 2mm; the granulation material is through the oven dry bed oven dry of flowing; make fugitive constituent satisfy the moulding requirement; use cold isostatic press at the 120-150Mpa compacted under; moulding product is fired down and in the reducing atmosphere in 1200-1250 ℃ in the shuttle-type kiln; the product that burns till applies inoxidzable coating again, promptly makes combined binder bonded aluminum-carbon refractory material of the present invention after about 120 ℃ of oven dry.
Refractory materials prescription of the present invention is characterised in that and has added the biphosphate aluminium powder form.Owing in refractory materials of the present invention, combine liquid phenolic resin and biphosphate aluminium powder form, make refractory materials of the present invention have outstanding characteristics and significant advantage than the product of prior art, promptly anti-molten steel scouring is stronger, the row of anti-the erosion is stronger, therefore improved work-ing life greatly, improve the operating rate of continuous casting steel machine, thereby reduced production cost, improved operational condition.
Embodiment
Following embodiment only is used to illustrate in greater detail the present invention, but the present invention is not subjected to the restriction of these embodiment.
Embodiment 1
The raw material of aluminum-carbon refractory material is made up of following component: crystalline flake graphite 30Kg, silicon carbide 4Kg, metallic silicon power 4Kg, fused quartz 10Kg, fused zirconia-mullite 10Kg, white fused alumina 42Kg, liquid phenolic resin-214 10Kg and biphosphate aluminium powder form 12Kg.
With the each component uniform mixing of above-mentioned raw materials, promptly can make combined binder bonded aluminum-carbon refractory material of the present invention according to previously described method.
Embodiment 2
The raw material of aluminum-carbon refractory material is made up of following component: crystalline flake graphite 25Kg, silicon carbide 4Kg, metallic silicon power 4Kg, fused quartz 5Kg, fused zirconia-mullite 10Kg, white fused alumina 52Kg, liquid phenolic resin-214 10Kg and biphosphate aluminium powder form 10Kg.
With the each component uniform mixing of above-mentioned raw materials, promptly can make combined binder bonded aluminum-carbon refractory material of the present invention according to previously described method.
Embodiment 3
The raw material of aluminum-carbon refractory material is made up of following component: crystalline flake graphite 20Kg, silicon carbide 4Kg, metallic silicon power 4Kg, fused quartz 2Kg, fused zirconia-mullite 10Kg, white fused alumina 60Kg, liquid phenolic resin-214 10Kg and biphosphate aluminium powder form 8Kg.
With the each component uniform mixing of above-mentioned raw materials, promptly can make combined binder bonded aluminum-carbon refractory material of the present invention according to previously described method.
The performance of the said products (testing data in the table is to adopt the method for this area routine to measure) as shown in table 1.
The performance of table 1 aluminum-carbon refractory material of the present invention
| Project | Embodiment 1 | Embodiment 2 | Embodiment 3 |
| Apparent porosity % | 11.5 | 12.0 | 12.3 |
| Compressive strength Mpa | 39.6 | 37.3 | 35.1 |
| Folding strength Mpa | 14.8 | 13.5 | 12.8 |
| Duration of service min | 768 | 856 | 847 |
| Corroding thickness mm | 10 | 12 | 12 |
From the performance of above data combined binder bonded of the present invention as can be seen aluminum-carbon refractory material is very good.
In sum, combined binder bonded aluminum-carbon refractory material of the present invention has excellent resistance to fouling and scour resistance, and oxidation-resistance is strong, has improved work-ing life, has improved the operating rate in the continuous casting steel machine greatly, and has reduced production cost.
Claims (5)
1. aluminum-carbon refractory material, the raw materials by weight meter that it is characterized in that this aluminum-carbon refractory material is made up of following component: crystalline flake graphite 10-35%, silicon carbide and metallic silicon power 1-10%, wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1, fused quartz 1-15%, fused zirconia-mullite 5-15%, white fused alumina 40-60%, its condition be above-mentioned component be combined into 100%; Also add the liquid phenolic resin of 8-12% of above-mentioned component total amount and the biphosphate aluminium powder form of 5-15% in addition.
2. according to the aluminum-carbon refractory material of claim 1, raw material wherein is made up of the component of following weight percent: crystalline flake graphite 30%, silicon carbide and metallic silicon power 8%, wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1, fused quartz 10%, fused zirconia-mullite 10%, white fused alumina 42% also adds 10% liquid phenolic resin of above-mentioned component total amount and 12% biphosphate aluminium powder form in addition.
3. according to the aluminum-carbon refractory material of claim 1, raw material wherein is made up of the component of following weight percent: crystalline flake graphite 25%, silicon carbide and metallic silicon power 8%, wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1, fused quartz 5%, fused zirconia-mullite 10%, white fused alumina 52% also adds 10% liquid phenolic resin of above-mentioned component total amount and 10% biphosphate aluminium powder form in addition.
4. according to the aluminum-carbon refractory material of claim 1, raw material wherein is made up of the component of following weight percent: crystalline flake graphite 20%, silicon carbide and metallic silicon power 8%, wherein the weight ratio of silicon carbide and metallic silicon power is 1: 1, fused quartz 2%, fused zirconia-mullite 10%, white fused alumina 60% also adds 10% liquid phenolic resin of above-mentioned component total amount and 8% biphosphate aluminium powder form in addition.
5. the preparation method of the aluminum-carbon refractory material of claim 1: earlier that solid particulate except liquid phenolic resin and powder mixes in claim 1 raw material is even; add liquid phenolic resin again; granulation in high speed granulator; particle diameter is reached below the 2mm; the granulation material is through the oven dry bed oven dry of flowing; make fugitive constituent satisfy the moulding requirement; use cold isostatic press at the 120-150Mpa compacted under; moulding product is fired down and in the reducing atmosphere in 1200-1250 ℃ in the shuttle-type kiln; the product that burns till applies inoxidzable coating again, promptly makes aluminum-carbon refractory material of the present invention after about 120 ℃ of oven dry.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021313717A CN1170785C (en) | 2002-10-08 | 2002-10-08 | Aluminum-carbon refractory material and its preparation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021313717A CN1170785C (en) | 2002-10-08 | 2002-10-08 | Aluminum-carbon refractory material and its preparation |
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| CN1424279A true CN1424279A (en) | 2003-06-18 |
| CN1170785C CN1170785C (en) | 2004-10-13 |
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| CNB021313717A Expired - Lifetime CN1170785C (en) | 2002-10-08 | 2002-10-08 | Aluminum-carbon refractory material and its preparation |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323053C (en) * | 2005-07-11 | 2007-06-27 | 徐生富 | Fireproof material |
| CN102093041A (en) * | 2010-12-28 | 2011-06-15 | 河南科技大学 | Zirconium dioxide and non-oxide in-situ composite alumina-carbon refractory material and preparation method thereof |
| CN102344289A (en) * | 2010-10-11 | 2012-02-08 | 青岛正望钢水控制股份有限公司 | Fireproof clay sealing ring |
| CN102391791A (en) * | 2011-09-09 | 2012-03-28 | 黑龙江省科学院石油化学研究院 | Phenolic resin hybrid phosphate adhesive and preparation method thereof |
| CN102491760A (en) * | 2011-11-16 | 2012-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of granulated graphite used in refractory castable |
| CN105364061A (en) * | 2012-11-22 | 2016-03-02 | 郑州思辩科技有限公司 | Carbon-free submerged nozzle |
| CN106187230A (en) * | 2016-07-14 | 2016-12-07 | 武汉钢铁股份有限公司 | Molten iron pretreatment utensil on-line maintenance material for repairing and its preparation method and application |
| CN110293219A (en) * | 2019-06-28 | 2019-10-01 | 中天钢铁集团有限公司 | A kind of method of large scale calcium-aluminate field trash in reduction steel |
| CN112341993A (en) * | 2020-11-23 | 2021-02-09 | 新乡市炬能耐材有限公司 | Production process of composite non-oxide grinding material with cross crystal structure |
| CN113354423A (en) * | 2021-05-17 | 2021-09-07 | 江苏苏嘉集团新材料有限公司 | Formula and preparation method of carbon composite refractory material |
-
2002
- 2002-10-08 CN CNB021313717A patent/CN1170785C/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1323053C (en) * | 2005-07-11 | 2007-06-27 | 徐生富 | Fireproof material |
| CN102344289A (en) * | 2010-10-11 | 2012-02-08 | 青岛正望钢水控制股份有限公司 | Fireproof clay sealing ring |
| CN102093041A (en) * | 2010-12-28 | 2011-06-15 | 河南科技大学 | Zirconium dioxide and non-oxide in-situ composite alumina-carbon refractory material and preparation method thereof |
| CN102391791A (en) * | 2011-09-09 | 2012-03-28 | 黑龙江省科学院石油化学研究院 | Phenolic resin hybrid phosphate adhesive and preparation method thereof |
| CN102391791B (en) * | 2011-09-09 | 2013-07-03 | 黑龙江省科学院石油化学研究院 | Preparation method of phenolic resin hybrid phosphate adhesive |
| CN102491760A (en) * | 2011-11-16 | 2012-06-13 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of granulated graphite used in refractory castable |
| CN105364061A (en) * | 2012-11-22 | 2016-03-02 | 郑州思辩科技有限公司 | Carbon-free submerged nozzle |
| CN106187230A (en) * | 2016-07-14 | 2016-12-07 | 武汉钢铁股份有限公司 | Molten iron pretreatment utensil on-line maintenance material for repairing and its preparation method and application |
| CN110293219A (en) * | 2019-06-28 | 2019-10-01 | 中天钢铁集团有限公司 | A kind of method of large scale calcium-aluminate field trash in reduction steel |
| CN112341993A (en) * | 2020-11-23 | 2021-02-09 | 新乡市炬能耐材有限公司 | Production process of composite non-oxide grinding material with cross crystal structure |
| CN112341993B (en) * | 2020-11-23 | 2021-10-29 | 新乡市炬能耐材有限公司 | Production process of composite non-oxide grinding material with cross crystal structure |
| CN113354423A (en) * | 2021-05-17 | 2021-09-07 | 江苏苏嘉集团新材料有限公司 | Formula and preparation method of carbon composite refractory material |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1170785C (en) | 2004-10-13 |
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