CN101362654A - Organic-inorganic combined binder for casting material and preparation method thereof - Google Patents
Organic-inorganic combined binder for casting material and preparation method thereof Download PDFInfo
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- CN101362654A CN101362654A CNA2008101970086A CN200810197008A CN101362654A CN 101362654 A CN101362654 A CN 101362654A CN A2008101970086 A CNA2008101970086 A CN A2008101970086A CN 200810197008 A CN200810197008 A CN 200810197008A CN 101362654 A CN101362654 A CN 101362654A
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Abstract
The invention specifically relates to an organic-inorganic composite binder for casting materials and a preparation method thereof. The adopted technical proposal is as follows: 5.76 to 14.4 percent by weight of acrylamide, 0.2 to 0.6 percent by weight of N-N'-methylene-bis-acrylamide, 0.03 to 0.30 percent by weight of ammonium persulfate, 0.005 to 0.1 percent by weight of tetramethylethylenediamine complex, 70.8 to 78.5 percent by weight of silicon micro-powder, 14.0 to 15.5 percent by weight of alumina micro-powder are mixed and then packaged by bags.Wherein, the tetramethylethylenediamine complex is basic cupric chloride complex (Cu(OH)Cl.TMEDA) of tetramethylethylenediamine which is formed by carrying out the reaction of methanol solution of copper chloride and N, N, N', N'-tetramethylethylenediamine (TMEDA) under the oxygen atmosphere. The preparation method is characterized by simple process and wide application range; the prepared binder can shorten the stripping time, significantly increase the strength after the baking, facilitate the production and the construction and improve the working efficiency when the binder is used for the casting materials.
Description
Technical field
The invention belongs to the unshape refractory technical field.Be specifically related to a kind of organic-inorganic combined binder for casting material and preparation method thereof.
Background technology
Refractory castable is as an important component part of unshape refractory, and its wedding agent adopts aluminous cement usually.Aluminous cement has characteristics such as hard soon, high-strength, fire-resistant and anti-silicate erosion, but owing to wherein contain CaO, at high temperature, CaO and Al
2O
3And SiO
2Form gehlenite (2CaOAl
2O
3SiO
2) etc., the generation of these eutectic phases has seriously reduced the high-temperature behavior of mould material.Therefore, for reducing cement content, avoid the formation of liquid phase in the mould material under the hot conditions, improve the erosion resistance and the creep-resistant property of mould material, prolong mould material work-ing life, low cement deposit material (LCC) and ultra-low cement deposit material (ULCC) arise at the historic moment down to non-cement mould material (NCC).
Except LCC, ULCC adopt a spot of aluminous cement, in the coupling system of these three kinds of mould material, mainly rely on SiO
2Micro mist and Al
2O
3The cohesion of micro mist, and the space between these micro mists filling mould material aggregates and the powder reduce amount of water, thereby obtain the intensity of material, optimize material property.But the problem that these three kinds of mould material, particularly ULCC and NCC ubiquity low-temperature bake intensity are on the low side, demould time is long, thereby cause that scrap rate is higher, working efficiency descends.
Summary of the invention
Task of the present invention provides the preparation method of a kind of technology organic-inorganic combined binder for casting material simple, applied widely, be used for mould material demould time weak point, the intensity increase of baking back, convenient construction, high efficiency with the prepared wedding agent of this method.
For finishing above-mentioned task, the technical solution used in the present invention is: the ammonium persulphate of the acrylamide of 5.76～14.4wt%, the N-N ' of 0.2～0.6wt%-methylene-bisacrylamide, 0.03～0.30wt%, the Tetramethyl Ethylene Diamine title complex of 0.005～0.1wt%, the silicon powder of 70.8～78.5wt% and the alumina powder of 14.0～15.5wt% are mixed, then bag distribution packaging.
Wherein, the Tetramethyl Ethylene Diamine title complex be the methanol solution of cuprous chloride under oxygen atmosphere with N, N, N ', N '-Tetramethyl Ethylene Diamine (TMEDA) reaction forms the basic copper chloride title complex [Cu (OH) ClTMEDA] of Tetramethyl Ethylene Diamine.
Owing to adopt technique scheme, the present invention has that technology is simple, advantage of wide range of application; Prepared wedding agent is because the organic bond quick-gelatinizing, and forms the network decussate texture with inorganic bonding agent, thereby has the good binding performance.The prepared wedding agent of the present invention is used for mould material, and under the equal conditions, with the Comparative Examples contrast, demould time shortens 4～8 hours, and folding strength and compressive strength improve more than 50%.Shorten so the wedding agent that the present invention makes is used for the mould material demould time, baking back intensity obviously increases, and has made things convenient for production and construction, has improved working efficiency.
The prepared wedding agent of the present invention is also applicable to other unshape refractories such as fire-resistance rammed mass, Gunning refractory, jetting material, moldable, chamotte.
Embodiment
The invention will be further described below in conjunction with embodiment, is not limiting the scope of the invention.
Embodiment 1
A kind of preparation method of organic-inorganic combined binder for casting material, the ammonium persulphate of the acrylamide of 5.76～7.76wt%, the N-N ' of 0.20～0.33wt%-methylene-bisacrylamide, 0.03～0.093wt%, the Tetramethyl Ethylene Diamine title complex of 0.005～0.025wt%, the silicon powder of 76.6～78.5wt% and the alumina powder of 15.1～15.5wt% are mixed, make organic-inorganic combined binder for casting material, then bag distribution packaging.
Wherein, the Tetramethyl Ethylene Diamine title complex be the methanol solution of cuprous chloride under oxygen atmosphere with N, N, N ', N '-Tetramethyl Ethylene Diamine (TMEDA) reaction forms the basic copper chloride title complex [Cu (OH) ClTMEDA] of Tetramethyl Ethylene Diamine.
Present embodiment 1 prepared organic-inorganic combined binder is used for mould material and is: the bauxite clinker of 0～8mm of 70～80wt% is mixed in cement mortar mixer stirred 1 minute, again the 200 purpose alumina fine powders of 15～20wt%, silicon powder and the alumina powder of 4～6wt% are mixed, the prepared organic-inorganic combined binder of present embodiment 1 that adds 6～8.25wt% then, mix in the earth rubber sand agitator of falling back, add water while stirring, about amount of water 5%, churning time 2～3 minutes.The vibrating casting moulding, natural curing, the demoulding is toasted under 110 ℃ of conditions, is incubated 24 hours.
By the performance after the example 1 prepared mould material baking be: demould time is 20 hours, and folding strength is 4.5MPa, and compressive strength is 30MPa.
Embodiment 2
A kind of preparation method of organic-inorganic combined binder for casting material, the ammonium persulphate of the acrylamide of 7.76～9.76wt%, the N-N ' of 0.33～0.42wt%-methylene-bisacrylamide, 0.093～0.15wt%, the Tetramethyl Ethylene Diamine title complex of 0.025～0.045wt%, the silicon powder of 74.8～76.6wt% and the alumina powder of 14.7～15.1wt% are mixed, make organic-inorganic combined binder for casting material, then bag distribution packaging.
Wherein, the Tetramethyl Ethylene Diamine title complex is with embodiment 1.
Present embodiment 2 prepared organic-inorganic combined binders are used for mould material and are: the bauxite clinker of 0～8mm of 70～80wt% is mixed in cement mortar mixer stirred 1 minute, again the 200 purpose alumina fine powders of 15～20wt%, silicon powder and the alumina powder of 4～6wt% are mixed, the prepared organic-inorganic combined binder of present embodiment 2 that adds 8.25～10.5wt% then, mix in the earth rubber sand agitator of falling back, add water while stirring, about amount of water 5%, churning time 2～3 minutes.The vibrating casting moulding, natural curing, the demoulding is toasted under 110 ℃ of conditions, is incubated 24 hours.
By performance after the baking of example 2 prepared mould material be: demould time is 18 hours, and folding strength is 6MPa, and compressive strength is 35MPa.
Embodiment 3
A kind of preparation method of organic-inorganic combined binder for casting material, the ammonium persulphate of the acrylamide of 9.76～11.76wt%, the N-N ' of 0.42～0.51wt%-methylene-bisacrylamide, 0.15～0.22wt%, the Tetramethyl Ethylene Diamine title complex of 0.045～0.065wt%, silicon powder and the 14.3～14.7wt% alumina powder of 72.8～74.8wt% are mixed, make organic-inorganic combined binder for casting material, then bag distribution packaging.
Wherein, the Tetramethyl Ethylene Diamine title complex is with embodiment 1.
Present embodiment 3 prepared organic-inorganic combined binders are used for mould material and are: the bauxite clinker of 0～8mm of 70～80wt% is mixed in cement mortar mixer stirred 1 minute.Again the 200 purpose alumina fine powders of 15～20wt%, silicon powder and the alumina powder of 4～6wt% are mixed, the prepared organic-inorganic combined binder of present embodiment 3 that adds 10.5～12.75wt% then, mix in the earth rubber sand agitator of falling back, add water while stirring, about amount of water 5%, churning time 2～3 minutes.The vibrating casting moulding, natural curing, the demoulding is toasted under 110 ℃ of conditions, is incubated 24 hours.
By performance after the baking of example 3 prepared mould material be: demould time is 17 hours, and folding strength is 7MPa, and compressive strength is 42MPa.
Embodiment 4
A kind of preparation method of organic-inorganic combined binder for casting material, the ammonium persulphate of the acrylamide of 11.76～14.4wt%, the N-N ' of 0.51～0.6wt%-methylene-bisacrylamide, 0.22～0.30wt%, the Tetramethyl Ethylene Diamine title complex of 0.065～0.1wt%, the silicon powder of 70.8～72.8wt% and the alumina powder of 14.0～14.3wt% are mixed, make organic-inorganic combined binder for casting material, then bag distribution packaging.
Wherein, the Tetramethyl Ethylene Diamine title complex is with embodiment 1.
Present embodiment 4 prepared organic-inorganic combined binders are used for mould material and are: the bauxite clinker of 0～8mm of 70～80wt% is mixed in cement mortar mixer stirred 1 minute.Again the 200 purpose alumina fine powders of 15～20wt%, silicon powder and the alumina powder of 4～6wt% are mixed, the prepared organic-inorganic combined binder of present embodiment 4 that adds 12.75～15wt% then, mix in the earth rubber sand agitator of falling back, add water while stirring, about amount of water 5%, churning time 2～3 minutes.The vibrating casting moulding, natural curing, the demoulding is toasted under 110 ℃ of conditions, is incubated 24 hours.
By performance after the baking of example 4 prepared mould material be: demould time is 16 hours, and folding strength is 6.5MPa, and compressive strength is 38MPa.
Comparative Examples
Bauxite clinker 70～80wt% of 0～8mm was stirred in cement mortar mixer 1 minute, then with 200 purpose alumina fine powders, 15～20wt%, silicon powder and the about 4～6wt% of alumina powder, mix in the earth rubber sand agitator of falling back, add water while stirring, about amount of water 5%, churning time 2～3 minutes.The vibrating casting moulding, natural curing, the demoulding is toasted under 110 ℃ of conditions, is incubated 24 hours.
By performance after the baking of the prepared mould material of Comparative Examples be: demould time is 24h hour, and folding strength is 2MPa, and compressive strength is 16MPa.
This embodiment has simple, the advantage of wide range of application of technology; Prepared wedding agent is because the organic bond quick-gelatinizing, and forms the network decussate texture with inorganic bonding agent, thereby has the good binding performance.The prepared wedding agent of the present invention is used for mould material, under the equal conditions, compares with Comparative Examples, and demould time shortens 4～8 hours, and folding strength and compressive strength improve more than 50%, and its performance obviously improves.Shorten so the wedding agent that the present invention makes is used for the mould material demould time, baking back intensity obviously increases, and has made things convenient for production and construction, has improved working efficiency.
The prepared wedding agent of the present invention is also applicable to other unshape refractories such as fire-resistance rammed mass, Gunning refractory, jetting material, moldable, chamotte.
Claims (3)
1, a kind of preparation method of organic-inorganic combined binder for casting material, it is characterized in that the ammonium persulphate of the acrylamide of 5.76～14.4wt%, the N-N ' of 0.2～0.6wt%-methylene-bisacrylamide, 0.03～0.30wt%, the Tetramethyl Ethylene Diamine title complex of 0.005～0.1wt%, the silicon powder of 70.8～78.5wt% and the alumina powder of 14.0～15.5wt% are mixed, then bag distribution packaging.
2, the preparation method of organic-inorganic combined binder for casting material according to claim 1, it is characterized in that methanol solution that described Tetramethyl Ethylene Diamine title complex is a cuprous chloride under oxygen atmosphere with N, N, N ', N '-Tetramethyl Ethylene Diamine reaction forms the basic copper chloride title complex of Tetramethyl Ethylene Diamine.
3, the prepared organic-inorganic combined binder for casting material of the preparation method of organic-inorganic combined binder for casting material according to claim 1 and 2.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101970086A CN101362654B (en) | 2008-09-18 | 2008-09-18 | Organic-inorganic combined binder for casting material and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101970086A CN101362654B (en) | 2008-09-18 | 2008-09-18 | Organic-inorganic combined binder for casting material and preparation method thereof |
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| Publication Number | Publication Date |
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| CN101362654A true CN101362654A (en) | 2009-02-11 |
| CN101362654B CN101362654B (en) | 2011-07-27 |
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| CN2008101970086A Expired - Fee Related CN101362654B (en) | 2008-09-18 | 2008-09-18 | Organic-inorganic combined binder for casting material and preparation method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417319A (en) * | 2011-08-30 | 2012-04-18 | 河南省耕生耐火材料有限公司 | Amide binder for no cement castable material |
| CN104261743A (en) * | 2014-09-27 | 2015-01-07 | 景德镇陶瓷学院 | Novel additive for cement mortar and application method of novel additive |
| CN107188580A (en) * | 2017-06-28 | 2017-09-22 | 常州万博金属构件厂 | A kind of vibration material and preparation method thereof |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100509704C (en) * | 2006-09-29 | 2009-07-08 | 阮克胜 | Flame-proof pouring material for hydroted alumina gas suspending roasting furnace furnace liner |
| CN101117558B (en) * | 2007-07-19 | 2011-03-30 | 西安明科微电子材料有限公司 | Gel injection molding material composition for aluminium silicon carbide integrated circuit pipe shell and method for preparing products |
-
2008
- 2008-09-18 CN CN2008101970086A patent/CN101362654B/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102417319A (en) * | 2011-08-30 | 2012-04-18 | 河南省耕生耐火材料有限公司 | Amide binder for no cement castable material |
| CN104261743A (en) * | 2014-09-27 | 2015-01-07 | 景德镇陶瓷学院 | Novel additive for cement mortar and application method of novel additive |
| CN104261743B (en) * | 2014-09-27 | 2016-06-15 | 景德镇陶瓷大学 | A kind of cement mortar additive and using method thereof |
| CN107188580A (en) * | 2017-06-28 | 2017-09-22 | 常州万博金属构件厂 | A kind of vibration material and preparation method thereof |
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| Publication number | Publication date |
|---|---|
| CN101362654B (en) | 2011-07-27 |
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Application publication date: 20090211 Assignee: Jiangsu Jingxin High-temperature Materials Co.,Ltd. Assignor: Wuhan University of Science and Technology Contract record no.: 2014320000118 Denomination of invention: Organic-inorganic combined binder for casting material and preparation method thereof Granted publication date: 20110727 License type: Exclusive License Record date: 20140228 |
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