CN101745968A - Gel injection molding and forming technology of specific zircon brick - Google Patents
Gel injection molding and forming technology of specific zircon brick Download PDFInfo
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- CN101745968A CN101745968A CN200810231105A CN200810231105A CN101745968A CN 101745968 A CN101745968 A CN 101745968A CN 200810231105 A CN200810231105 A CN 200810231105A CN 200810231105 A CN200810231105 A CN 200810231105A CN 101745968 A CN101745968 A CN 101745968A
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Abstract
The invention discloses a gel injection molding and forming technology of a specific zircon brick, which comprises working procedures of sizing preparation, gel injection molding, curing, demolding and drying, particularly comprises the flowing steps: adding an organic monomer of acrylamide, a cross-linking agent of N-N' methylene-bisacrylamide, a water-soluble plasticizer of polyethylene glycol and a dispersing agent of ammonium citrate into water and stirring to be completely dissolved; then adding ammonia water and adjusting the pH value of the ammonia water and obtaining premixed solution; adding zircon superfine power into the premixed solution to obtain sizing; adding a catalyst of tetramethyl ethylene diamine solution and an initiator of ammonium persulfate solution, evenly stirring and injecting a plaster mold; and carrying out curing, demolding and drying to obtain a specific zircon brick blank. The invention has t simple operation and low cost; the relative density of the prepared blank can reach 55-70 percent; and the invention has the advantages of high strength, few defects, accessible clear dimension molding and the like.
Description
Technical field
The invention belongs to fire resisting material field, be specifically related to a kind of gel injection molding and forming technology of specific zircon brick.
Background technology
At present, industries such as glass, metallurgy, oil, chemical industry are increasing to the demand of high-quality specific zircon brick, but refractory materials manufacturing enterprise is difficult to satisfy user's requirement, and main cause is the restriction that is subjected to forming method.Methods such as traditional mechanical pressing, vibration moulding, moulding by casting all have its limitation, mechanical pressing only is applicable to the product of production simple shape, vibration moulding is difficult to guarantee the close uniformity of goods body, moulding by casting is owing to need to add inorganic material such as silicon ash, cement, have a strong impact on the high-temperature behavior of goods, and moulding by casting is because solid concentration is low, causes the problems such as body drying cracking, high-temperature shrinkage after the moulding.More advanced isostatic compaction general enterprise is hung back, and the base substrate relative density of its production has only about 50% because equipment investment is big.
Summary of the invention
The technical problem to be solved in the present invention is problems such as the molding blank high-temperature behavior that exists of the moulding of existing specific zircon brick is poor, season cracking, high-temperature shrinkage, provide a kind of simple to operate, cost is low, the gel injection molding and forming technology of the specific zircon brick that the blank strength of making is high.
For solving the problems of the technologies described above, technical scheme of the present invention is as follows:
The gel injection molding and forming technology of specific zircon brick of the present invention comprises preparation slip, gel injection-moulding, curing, the demoulding, baking operation.Wherein with organic monomer acrylamide, crosslinking agent N-N ' methylene-bisacrylamide, water-soluble plasticizer polyethylene glycol, dispersant ammonium citrate, add and be stirred to dissolving fully in the entry, add ammoniacal liquor then and regulate its pH value, make premixed liquid, the zircon superfine powder is added premixed liquid make slip, add catalyst tetramethylethylenediamine solution and initiator ammonium persulfate solution in the slip, gypsum mold is injected in the back that stirs, through curing, the demoulding, oven dry, make the specific zircon brick base substrate.
The gel injection molding and forming technology of specific zircon brick, concrete technology is as follows:
(1) preparation premixed liquid
With the water of 85-95 weight portion, the acrylamide of 3-15 weight portion, the N-N ' methylene-bisacrylamide of 0.05-1.5 weight portion, the polyethylene glycol of 0.5-3 weight portion, the ammonium citrate of 0.5-2 weight portion, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 8～10, make premixed liquid;
(2) preparation slip
The zircon fine powder of 50-80 weight portion, the premixed liquid of 20-50 weight portion are added ball mill, and ball milling 4 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine solution and initiator ammonium persulfate solution, catalyst addition are the 1-2% of zircon quality, and the initator addition is the 2-3% of acrylamide quality, in mixer, stirred 3～20 minutes, inject gypsum mold after stirring, solidified 10～20 hours the demoulding afterwards at 50～70 ℃ down, dried 20～30 hours down at 80～100 ℃ again, make the specific zircon brick base substrate.
The present invention adopts acrylamide gel system (comprising organic monomer, initator and catalyst) and zircon superfine powder to prepare the low viscous concentrate suspension of stable high solid loading.Its basic principle is the zircon superfine grinding, selects suitable gel rubber system, the preparation low viscous concentrate suspension of high solid loading (slip).Add initator and catalyst in the slip, pour plaster cast after stirring into, organic monomer can produce radical polymerization under the effect of initator and catalyst, generate three-dimensional netted macromolecular compound, macromolecular compound and zircon powder form firm mosaic texture, reach the purpose that high strength is solidified.
The invention has the beneficial effects as follows that simple to operate, cost is low, the base substrate relative density of making can reach 55-70%, but has advantages such as intensity height, the few near-net-shape of defective.
The specific embodiment
Below in conjunction with embodiment the present invention is elaborated, but and do not limit the present invention in any way.
Embodiment 1
The gel injection molding and forming technology of specific zircon brick is as follows:
(1) preparation premixed liquid
With the water of 85 weight portions, the acrylamide of 10 weight portions, the N-N ' methylene-bisacrylamide of 1.5 weight portions, the polyethylene glycol of 2 weight portions, the ammonium citrate of 0.5 weight portion, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 8, make premixed liquid;
(2) preparation slip
The zircon fine powder of 50 weight portions, the premixed liquid of 30 weight portions are added ball mill, and ball milling 3 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine saturated solution and initiator ammonium persulfate saturated solution, catalyst addition are 1% of zircon quality, and the initator addition is 2% of an acrylamide quality, in mixer, stirred 3 minutes, inject gypsum mold after stirring, solidified 15 hours the demoulding afterwards at 60 ℃ down, dried 30 hours down at 80 ℃ again, make the specific zircon brick base substrate.
Embodiment 2
The gel injection molding and forming technology of specific zircon brick is as follows:
(1) preparation premixed liquid
With the water of 88 weight portions, the acrylamide of 9 weight portions, the N-N ' methylene-bisacrylamide of 1.0 weight portions, the polyethylene glycol of 3 weight portions, the ammonium citrate of 1 weight portion, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 8.5, make premixed liquid;
(2) preparation slip
The zircon fine powder of 60 weight portions, the premixed liquid of 40 weight portions are added ball mill, and ball milling 4 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine saturated solution and initiator ammonium persulfate saturated solution, catalyst addition are 2% of zircon quality, and the initator addition is 2.5% of an acrylamide quality, in mixer, stirred 10 minutes, inject gypsum mold after stirring, solidified 10 hours the demoulding afterwards at 65 ℃ down, dried 28 hours down at 85 ℃ again, make the specific zircon brick base substrate.
Embodiment 3
The gel injection molding and forming technology of specific zircon brick is as follows:
(1) preparation premixed liquid
With the water of 92 weight portions, the acrylamide of 12 weight portions, the N-N ' methylene-bisacrylamide of 0.5 weight portion, the polyethylene glycol of 1 weight portion, the ammonium citrate of 1.5 weight portions, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 9, make premixed liquid;
(2) preparation slip
The zircon fine powder of 70 weight portions, the premixed liquid of 20 weight portions are added ball mill, and ball milling 5 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine saturated solution and initiator ammonium persulfate saturated solution, catalyst addition are 1.5% of zircon quality, and the initator addition is 2.2% of an acrylamide quality, in mixer, stirred 15 minutes, inject gypsum mold after stirring, solidified 18 hours the demoulding afterwards at 70 ℃ down, dried 25 hours down at 90 ℃ again, make the specific zircon brick base substrate.
Embodiment 4
The gel injection molding and forming technology of specific zircon brick is as follows:
(1) preparation premixed liquid
With the water of 95 weight portions, the acrylamide of 15 weight portions, the N-N ' methylene-bisacrylamide of 0.05 weight portion, the polyethylene glycol of 0.5 weight portion, the ammonium citrate of 2 weight portions, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 10, make premixed liquid;
(2) preparation slip
The zircon fine powder of 80 weight portions, the premixed liquid of 50 weight portions are added ball mill, and ball milling 4 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine saturated solution and initiator ammonium persulfate saturated solution, catalyst addition are 1.2% of zircon quality, and the initator addition is 3% of an acrylamide quality, in mixer, stirred 20 minutes, inject gypsum mold after stirring, solidified 20 hours the demoulding afterwards at 50 ℃ down, dried 20 hours down at 100 ℃ again, make the specific zircon brick base substrate.
Claims (2)
1. the gel injection molding and forming technology of a specific zircon brick, comprise the preparation slip, gel injection-moulding, solidify, the demoulding, baking operation, it is characterized in that: with the organic monomer acrylamide, crosslinking agent N-N ' methylene-bisacrylamide, the water-soluble plasticizer polyethylene glycol, the dispersant ammonium citrate, add and be stirred to dissolving fully in the entry, add ammoniacal liquor then and regulate its pH value, make premixed liquid, the zircon superfine powder is added premixed liquid make slip, add catalyst tetramethylethylenediamine solution and initiator ammonium persulfate solution in the slip, back injection gypsum mold stirs, through solidifying, the demoulding, oven dry makes the specific zircon brick base substrate.
2. the gel injection molding and forming technology of specific zircon brick according to claim 1 is characterized in that: concrete technology is as follows:
(1) preparation premixed liquid
With the water of 85-95 weight portion, the acrylamide of 3-15 weight portion, the N-N ' methylene-bisacrylamide of 0.05-1.5 weight portion, the polyethylene glycol of 0.5-3 weight portion, the ammonium citrate of 0.5-2 weight portion, add mixer, be stirred to dissolving fully, add ammoniacal liquor then and regulate between its pH value to 8～10, make premixed liquid;
(2) preparation slip
The zircon fine powder of 50-80 weight portion, the premixed liquid of 20-50 weight portion are added ball mill, and ball milling 3～5 hours obtains zircon solid volume fraction＞56%, the slip of viscosity＜800mPas;
(3) gel casting forming
Slip is put into mixer, add catalyst n, N, N ', N '-tetramethylethylenediamine solution and initiator ammonium persulfate solution, catalyst addition are the 1-2% of zircon quality, and the initator addition is the 2-3% of acrylamide quality, in mixer, stirred 3～20 minutes, inject gypsum mold after stirring, solidified 10～20 hours the demoulding afterwards at 50～70 ℃ down, dried 20～30 hours down at 80～100 ℃ again, make the specific zircon brick base substrate.
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| CN2008102311052A CN101745968B (en) | 2008-11-27 | 2008-11-27 | Gel injection molding and forming technology of specific zircon brick |
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| CN2008102311052A CN101745968B (en) | 2008-11-27 | 2008-11-27 | Gel injection molding and forming technology of specific zircon brick |
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| CN101745968B CN101745968B (en) | 2012-11-28 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869828A (en) * | 2010-06-25 | 2010-10-27 | 河北大学 | Method for preparing temperature stimuli responsive intelligent chromatographic column |
| CN102503475A (en) * | 2011-10-27 | 2012-06-20 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of tundish nozzle |
| CN102514085A (en) * | 2011-12-27 | 2012-06-27 | 郑州远东耐火材料有限公司 | Mould for preparing electric smelting zirconium adamantine spar rotating cylinder brick |
| CN105016751A (en) * | 2015-07-31 | 2015-11-04 | 天津大学 | Method for preparing zircon refractory material by using particle size distribution combined with gel injection molding process |
| CN105384461A (en) * | 2015-11-10 | 2016-03-09 | 当涂县科辉商贸有限公司 | Autoclaved aerated concrete building block with good fireproof coating suitability and manufacturing method thereof |
| CN114455886A (en) * | 2022-02-23 | 2022-05-10 | 江苏东台超凡创新新材料科技有限公司 | Light brick prepared from aluminum ash and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1631844A (en) * | 2003-12-22 | 2005-06-29 | 宝山钢铁股份有限公司 | Zircon carbon brick |
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- 2008-11-27 CN CN2008102311052A patent/CN101745968B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1631844A (en) * | 2003-12-22 | 2005-06-29 | 宝山钢铁股份有限公司 | Zircon carbon brick |
Non-Patent Citations (1)
| Title |
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| 胡宝玉: "氧化锆特种耐火材料在工业中的应用", 《稀有金属快报》 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101869828A (en) * | 2010-06-25 | 2010-10-27 | 河北大学 | Method for preparing temperature stimuli responsive intelligent chromatographic column |
| CN101869828B (en) * | 2010-06-25 | 2012-07-04 | 河北大学 | Method for preparing temperature stimuli responsive intelligent chromatographic column |
| CN102503475A (en) * | 2011-10-27 | 2012-06-20 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of tundish nozzle |
| CN102503475B (en) * | 2011-10-27 | 2013-08-28 | 中钢集团洛阳耐火材料研究院有限公司 | Preparation method of tundish nozzle |
| CN102514085A (en) * | 2011-12-27 | 2012-06-27 | 郑州远东耐火材料有限公司 | Mould for preparing electric smelting zirconium adamantine spar rotating cylinder brick |
| CN105016751A (en) * | 2015-07-31 | 2015-11-04 | 天津大学 | Method for preparing zircon refractory material by using particle size distribution combined with gel injection molding process |
| CN105016751B (en) * | 2015-07-31 | 2017-06-13 | 天津大学 | A kind of method that utilization grain composition attached gel molding process prepares aircon refractory |
| CN105384461A (en) * | 2015-11-10 | 2016-03-09 | 当涂县科辉商贸有限公司 | Autoclaved aerated concrete building block with good fireproof coating suitability and manufacturing method thereof |
| CN114455886A (en) * | 2022-02-23 | 2022-05-10 | 江苏东台超凡创新新材料科技有限公司 | Light brick prepared from aluminum ash and preparation method thereof |
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| CN101745968B (en) | 2012-11-28 |
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Granted publication date: 20121128 Termination date: 20131127 |