CN104045363B - Preparation method of seepage-proof castable - Google Patents
Preparation method of seepage-proof castable Download PDFInfo
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- CN104045363B CN104045363B CN201410324774.XA CN201410324774A CN104045363B CN 104045363 B CN104045363 B CN 104045363B CN 201410324774 A CN201410324774 A CN 201410324774A CN 104045363 B CN104045363 B CN 104045363B
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- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 239000000843 powder Substances 0.000 claims abstract description 29
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 28
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000004411 aluminium Substances 0.000 claims abstract description 20
- 239000002994 raw material Substances 0.000 claims abstract description 19
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims abstract description 17
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910017083 AlN Inorganic materials 0.000 claims abstract description 14
- PIGFYZPCRLYGLF-UHFFFAOYSA-N Aluminum nitride Chemical compound [Al]#N PIGFYZPCRLYGLF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 235000019832 sodium triphosphate Nutrition 0.000 claims abstract description 11
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- XFWJKVMFIVXPKK-UHFFFAOYSA-N calcium;oxido(oxo)alumane Chemical compound [Ca+2].[O-][Al]=O.[O-][Al]=O XFWJKVMFIVXPKK-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims abstract description 8
- 239000000377 silicon dioxide Substances 0.000 claims abstract description 8
- 238000010276 construction Methods 0.000 claims abstract description 7
- 239000004568 cement Substances 0.000 claims abstract description 6
- 235000012239 silicon dioxide Nutrition 0.000 claims abstract 2
- 239000000463 material Substances 0.000 claims description 37
- 239000000203 mixture Substances 0.000 claims description 13
- 239000011734 sodium Substances 0.000 claims description 12
- 229910002367 SrTiO Inorganic materials 0.000 claims description 9
- 239000006185 dispersion Substances 0.000 claims description 6
- 229910052708 sodium Inorganic materials 0.000 claims description 6
- 101710194948 Protein phosphatase PhpP Proteins 0.000 claims description 5
- PMHQVHHXPFUNSP-UHFFFAOYSA-M copper(1+);methylsulfanylmethane;bromide Chemical compound Br[Cu].CSC PMHQVHHXPFUNSP-UHFFFAOYSA-M 0.000 claims description 5
- HWGNBUXHKFFFIH-UHFFFAOYSA-I pentasodium;[oxido(phosphonatooxy)phosphoryl] phosphate Chemical compound [Na+].[Na+].[Na+].[Na+].[Na+].[O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O HWGNBUXHKFFFIH-UHFFFAOYSA-I 0.000 claims description 5
- 229920005646 polycarboxylate Polymers 0.000 claims description 5
- 102220042174 rs141655687 Human genes 0.000 claims description 5
- UNXRWKVEANCORM-UHFFFAOYSA-I triphosphate(5-) Chemical compound [O-]P([O-])(=O)OP([O-])(=O)OP([O-])([O-])=O UNXRWKVEANCORM-UHFFFAOYSA-I 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 claims 1
- 239000008188 pellet Substances 0.000 claims 1
- 229960001866 silicon dioxide Drugs 0.000 claims 1
- 239000007788 liquid Substances 0.000 abstract description 16
- 238000009736 wetting Methods 0.000 abstract description 10
- 150000001875 compounds Chemical class 0.000 abstract description 4
- 229910001610 cryolite Inorganic materials 0.000 abstract description 3
- 230000035939 shock Effects 0.000 abstract description 3
- 239000011819 refractory material Substances 0.000 abstract description 2
- 239000000126 substance Substances 0.000 abstract description 2
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 abstract 2
- QYEXBYZXHDUPRC-UHFFFAOYSA-N B#[Ti]#B Chemical compound B#[Ti]#B QYEXBYZXHDUPRC-UHFFFAOYSA-N 0.000 abstract 1
- 229910002370 SrTiO3 Inorganic materials 0.000 abstract 1
- 229910033181 TiB2 Inorganic materials 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 238000005260 corrosion Methods 0.000 abstract 1
- 239000002270 dispersing agent Substances 0.000 abstract 1
- 235000019982 sodium hexametaphosphate Nutrition 0.000 abstract 1
- GCLGEJMYGQKIIW-UHFFFAOYSA-H sodium hexametaphosphate Chemical compound [Na]OP1(=O)OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])OP(=O)(O[Na])O1 GCLGEJMYGQKIIW-UHFFFAOYSA-H 0.000 abstract 1
- 239000001577 tetrasodium phosphonato phosphate Substances 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 description 4
- 238000003723 Smelting Methods 0.000 description 3
- 238000005266 casting Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 239000011159 matrix material Substances 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 230000003487 anti-permeability effect Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Abstract
The invention belongs to the field of refractory materials and relates to a preparation method of a seepage-proof castable. The castable comprises the following raw materials by weight percent: 63-69wt% of alumina particles with sizes of 8-0mm, 18-21wt% of aluminium nitride fine powder with particle size less than 0.044mm, 4-7wt% of pure calcium aluminate cement with particle size less than 0.074mm and 5-6wt% of silicon dioxide micro powder with D90 equivalent to 0.1mu m. The castable is characterized in that a compound of BaSO4, TiB2, SrTiO3 and Na3AlF6 is adopted as a molten aluminum wetting resisting agent; the addition of the compound is 1-6wt%; 0.12% of sodium tripolyphosphate and 0.03% of sodium hexametaphosphate are added as dispersing agents; alumina sol serves as construction liquid. The prepared castable has enough strength, excellent thermal shock resistance and good volume stability and chemical stability, is mainly resistant to molten aluminum wetting, has good thermal stability, is resistant to molten aluminum corrosion, does not affect the components of molten aluminium and has long service life.
Description
Technical field
The invention belongs to fire resisting material field, relate generally to a kind of preparation method of antiseepage mould material.
Background technology
Coloured industry production large aluminum alloy plate ingot, and further the product such as deep processing Lv Ban Dai ﹑ aluminium foil requires high to the control accuracy of al alloy component.As the Large size Aluminium smelting furnace inner lining material of aluminium alloy deep processing project key equipment, especially the control of inner lining material to al alloy component that the throat such as Bu ﹑ sidewall and stream aluminium groove adopts Di aluminium mouth valley of entering of aluminium melting furnace plays an important role.Aluminium liquid is not only containing the element such as chemically reactive height Mei ﹑ silicon and zinc, and mobility is fabulous, and 750 DEG C time, its viscosity is only 0.104Pas, close with the viscosity (0.1 Pas) of water when 20 DEG C, easily to furnace lining internal penetration.Large size Aluminium smelting furnace enters periodicity that Bu ﹑ sidewall and stream aluminium Pot Lining material Di aluminium mouth valley not only will resist aluminium liquid and washes away the physical damnification that causes and thermal shock is impacted, the more important thing is and want aluminum-liquid wetting resisting, do not react with the alloying constituent in aluminium liquid, and then affect the composition of alloy product.This position current material aluminum-liquid wetting resisting is poor, and easily pollute aluminium liquid composition, aluminium liquid penetrates into inside refractory materials, and furnace lining destroys.
Summary of the invention
For solving the problems of the technologies described above, object of the present invention proposes a kind of preparation method of antiseepage mould material, makes it have aluminum-liquid wetting resisting, antiseepage, does not affect aluminium liquid composition, the feature of long service life.
Object of the present invention adopts following technical scheme to realize:
A kind of antiseepage mould material, the raw material composition of described mould material and proportioning are: the fine silica powder 5wt% ~ 6wt% of 8mm-0mm alumina particle 63wt% ~ 69wt% ﹑ < 0.044mm aluminium nitride fine powder 18wt% ~ 21wt% ﹑ < 0.074mm pure calcium aluminate cement 4wt% ~ 7wt% ﹑ D90=0.1 μm, adopt BaSO
4, TiB
2, SrTiO
3, Na
3alF
6compound is as permeability-reducing admixture, and its add-on is 1wt% ~ 6wt%, and account for raw material gross weight 0.12% tripoly phosphate sodium STPP and 0.03% polycarboxylate as dispersion agent; During preparation, first the aluminum nitride powder raw material of permeability-reducing admixture and granularity < 0.044mm is ground 30mins altogether in vibration mill; Make permeability-reducing admixture and aluminum nitride powder abundant homogenizing in advance, make homogenizing powder, then homogenizing powder is mixed with other component in proportion, the additional Alumina gel accounting for raw material gross weight 4% ~ 8% when construction is stirred, mix evenly; Then for cast-in-site, mould material is prepared.
BaSO in described permeability-reducing admixture
4, TiB
2, SrTiO
3, Na
3alF
6weight ratio be 2:1:1:1.
Alumina content >=85% of described alumina, aluminium nitride content >=98.5wt% in aln raw material.
Described pure calcium aluminate cement granularity < 0.074mm, Al in raw material
2o
3content is greater than 71wt%.
SiO in described fine silica powder raw material
2content be 91wt% ~ 97wt%.
In the present invention: select BaSO
4, TiB
2, SrTiO
3, Na
3alF
6composite anti-penetrating agent has following characteristics, and (1) aluminium nitride thing material itself is not easily wetted by aluminum, and its wetting angle is 138 °, and therefore by its main component as refractory castable, aluminum-liquid wetting resisting is good.(2) BaSO
4the free SiO of mould material can be caught
2, improve not being wetted by aluminum and aggressiveness of mould material, but when adding separately, effect is bad, by selecting the BaSO of compound
4, TiB
2, SrTiO
3, Na
3alF
6permeability-reducing admixture, significantly improves not the being wetted by aluminum property of mould material, anti-permeability, the resistance to fouling of thermostability, mould material.(3) improve the intensity of mould material with Alumina gel and pure calcium aluminate as combined binder; In addition, Alumina gel can be well dispersed in inside mould material, and it is good that aluminum-resistant liquid corrodes penetrating quality, is easy to the overall performance improving mould material.
In the present invention: adopt the aluminium nitride fine powder of permeability-reducing admixture and mould material to carry out common mill: permeability-reducing admixture is most important for this kind of mould material, but action of forced stirring and dispersion agent is only adopted to be not enough to permeability-reducing admixture is disperseed in the matrix of mould material effectively equably due to the production method of add-on Shao ﹑ surfactivity also Bu Gao ﹑ tradition mould material; Adopt and permeability-reducing admixture and aluminium nitride fine powder are first carried out common mill, and then mix with other components of mould material, make a small amount of permeability-reducing admixture abundant homogenizing in mould material matrix, reach the object that whole mould material matrix is not wetted by aluminum.Experiment proves, permeability-reducing admixture add-on is less than the object that 1% tentatively can play anti-aluminium liquid wetting, is greater than construction and high-temperature behavior that 6% will have a strong impact on mould material.
Mould material of the present invention is through test, for liner antiseepage positions such as Bu ﹑ sidewall Di Large size Aluminium smelting furnace (maximum capacity 100 tons) enterprising aluminium mouth valley and stream aluminium grooves, there is enough Hao ﹑ chemical stabilities of Qiang Du ﹑ thermal shock resistance You Liang ﹑ volume stability good, key is aluminum-liquid wetting resisting, do not affect aluminium liquid composition, long service life.
Embodiment
Embodiment 1: a kind of antiseepage mould material is by the fine silica powder 5wt% ﹑ composition type permeation-proof agent 1wt%(BaSO of 8mm-0mm alumina particle 69wt% ﹑ < 0.044mm aluminium nitride fine powder 21wt% ﹑ < 0.074mm pure calcium aluminate water 4wt% ﹑ D90=0.1 μm
40.4wt%, TiB
20.2wt%, SrTiO
30.2wt%, Na3AlF6 0.2wt%); And account for raw material gross weight 0.12% tripoly phosphate sodium STPP and 0.03% polycarboxylate as dispersion agent; During preparation, first the aluminium nitride fine powder raw material of permeability-reducing admixture and granularity < 0.044mm is ground 30mins altogether in vibration mill; Make permeability-reducing admixture and aluminium nitride fine powder abundant homogenizing in advance, make homogenizing powder, the ratio accounted for altogether at aluminium nitride refractory castable in permeability-reducing admixture and aluminium nitride fine powder by homogenizing powder again and 22wt% and other component mix, additional about 5wt% Alumina gel when construction is stirred, mix evenly, at the on-the-spot vibrating casting of block stove, use after conventional maintenance baking.
Embodiment 2: a kind of antiseepage mould material is by the fine silica powder 6wt% ﹑ composition type permeation-proof agent 4wt%(BaSO of 8mm-0mm alumina particle 66wt% ﹑ < 0.044mm aluminium nitride fine powder 18wt% ﹑ < 0.074mm pure calcium aluminate cement 6wt% ﹑ D90=0.1 μm
41.6wt%, TiB
20.8wt%, SrTiO
30.8wt%, Na3AlF6 0.8wt%); And account for raw material gross weight 0.12% tripoly phosphate sodium STPP and 0.03% polycarboxylate as dispersion agent; Preparation process is with embodiment 1, and additional about 6wt% Alumina gel when construction is stirred, mixes evenly, at the on-the-spot vibrating casting of block stove, uses after conventional maintenance baking.
Embodiment 3: a kind of antiseepage mould material is by the fine silica powder 6wt% ﹑ compound aluminum-liquid wetting resisting additive 4wt%(BaSO of 8mm-0mm alumina particle 65wt% ﹑ < 0.044mm aluminium nitride fine powder 18wt% ﹑ < 0.074mm pure calcium aluminate cement 7wt% ﹑ D90=0.1 μm
41.6wt%, TiB
20.8wt%, SrTiO
30.8wt%, Na
3alF
60.8wt%); And account for raw material gross weight 0.12% tripoly phosphate sodium STPP and 0.03% polycarboxylate as dispersion agent; Preparation process is with embodiment 1, and additional about 8wt% Alumina gel when construction is stirred, mixes evenly, at the on-the-spot vibrating casting of block stove, uses after conventional maintenance baking.
Claims (4)
1. a preparation method for antiseepage mould material, is characterized in that: the raw material composition of described antiseepage mould material and proportioning are:
8mm-0mm alumina particle 63wt% ~ 69wt% ﹑ < 0.044mm aluminum nitride powder 18wt% ~ 21wt% ﹑ < 0.074mm is pure
Fine silica powder 5wt% ~ the 6wt% of aluminous cement 4wt% ~ 7wt% ﹑ D90=0.1 μm, adopts BaSO
4, TiB
2, SrTiO
3, Na
3alF
6compound is as permeability-reducing admixture, and its add-on is 1wt% ~ 6wt%, and account for raw material gross weight 0.12% tripoly phosphate sodium STPP and 0.03% polycarboxylate as dispersion agent; During preparation, first the aluminum nitride powder raw material of permeability-reducing admixture and granularity < 0.044mm is ground 30mins altogether in vibration mill; Make permeability-reducing admixture and aluminum nitride powder abundant homogenizing in advance, make homogenizing powder, then homogenizing powder is mixed with other component in proportion, the additional Alumina gel accounting for raw material gross weight 4% ~ 8% when construction is stirred, mix evenly; Then for cast-in-site, antiseepage mould material is prepared; BaSO in described permeability-reducing admixture
4and TiB
2and SrTiO
3and Na
3alF
6weight ratio 2:1:1:1.
2. the preparation method of a kind of antiseepage mould material according to claim 1, is characterized in that: the oxidation of described alumina
Aluminium content >=85%, aluminium nitride content >=98.5wt% in aln raw material.
3. the preparation method of a kind of antiseepage mould material according to claim 1, is characterized in that: described pure calcium aluminate water
Mud pellet degree < 0.074mm, Al in raw material
2o
3the large 71wt% of content.
4. the preparation method of a kind of antiseepage mould material according to claim 1, is characterized in that: described silicon-dioxide is micro-
SiO in powder raw material
2content be 91wt% ~ 97wt%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410324774.XA CN104045363B (en) | 2014-07-09 | 2014-07-09 | Preparation method of seepage-proof castable |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410324774.XA CN104045363B (en) | 2014-07-09 | 2014-07-09 | Preparation method of seepage-proof castable |
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| Publication Number | Publication Date |
|---|---|
| CN104045363A CN104045363A (en) | 2014-09-17 |
| CN104045363B true CN104045363B (en) | 2015-06-10 |
Family
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| CN201410324774.XA Active CN104045363B (en) | 2014-07-09 | 2014-07-09 | Preparation method of seepage-proof castable |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104478372A (en) * | 2014-12-03 | 2015-04-01 | 柳州市共和耐火材料有限公司 | Dry-type anti-leakage material |
| CN110511044A (en) * | 2018-05-21 | 2019-11-29 | 济源市涟源炉业有限公司 | A kind of antiseepage castable and preparation method thereof |
| CN109265183B (en) * | 2018-08-23 | 2021-06-08 | 安徽瑞泰新材料科技有限公司 | Anti-seepage castable |
| CN109020517A (en) * | 2018-08-23 | 2018-12-18 | 安徽瑞泰新材料科技有限公司 | A kind of preparation method of castable refractory |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717246A (en) * | 2009-12-24 | 2010-06-02 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing high alumina castable without being moistened by aluminum liquid |
| CN101734928A (en) * | 2009-12-24 | 2010-06-16 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of fused silica refractory casting material unwetted by aluminum liquid |
| CN103011866A (en) * | 2012-12-28 | 2013-04-03 | 贵阳联合高温材料有限公司 | Microporous high-penetration-resistance high-aluminum casting material, and preparation method and application method thereof |
-
2014
- 2014-07-09 CN CN201410324774.XA patent/CN104045363B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101717246A (en) * | 2009-12-24 | 2010-06-02 | 中钢集团洛阳耐火材料研究院有限公司 | Method for preparing high alumina castable without being moistened by aluminum liquid |
| CN101734928A (en) * | 2009-12-24 | 2010-06-16 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of fused silica refractory casting material unwetted by aluminum liquid |
| CN103011866A (en) * | 2012-12-28 | 2013-04-03 | 贵阳联合高温材料有限公司 | Microporous high-penetration-resistance high-aluminum casting material, and preparation method and application method thereof |
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| CN104045363A (en) | 2014-09-17 |
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Address after: 066000 jiangjiawa village, Duzhuang Town, Haigang District, Qinhuangdao City, Hebei Province Patentee after: Qinhuangdao Shounai New Materials Co.,Ltd. Address before: 066000 jiangjiawa village, Duzhuang Town, Haigang District, Qinhuangdao City, Hebei Province Patentee before: QINHUANGDAO SHOUGANG HEIQI REFRACTORY MATERIAL Co.,Ltd. |
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Denomination of invention: A preparation method for anti-seepage pouring material Effective date of registration: 20230829 Granted publication date: 20150610 Pledgee: Qinhuangdao Bank Co.,Ltd. Beidaihe Branch Pledgor: Qinhuangdao Shounai New Materials Co.,Ltd. Registration number: Y2023980054347 |