CN102276287A - Preparation method for honeycomb ceramics - Google Patents
Preparation method for honeycomb ceramics Download PDFInfo
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- CN102276287A CN102276287A CN2011101431542A CN201110143154A CN102276287A CN 102276287 A CN102276287 A CN 102276287A CN 2011101431542 A CN2011101431542 A CN 2011101431542A CN 201110143154 A CN201110143154 A CN 201110143154A CN 102276287 A CN102276287 A CN 102276287A
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- ceramic honey
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Abstract
The invention discloses a preparation method for honeycomb ceramics. According to the present invention, hydroxypropyl methyl cellulose is adopted as an agglomerant so as to enhance plasticity during molding, and reduce the molding difficulty; clay is adopted so as to improve product strength and increase yield; quartz powder is adopted as a raw material to be used, such that sintering reaction temperature is raised, thermal shock resistance of the product is raised; stearic acid is adopted as a raw material to be used so as to reduce the resistance during extruding and molding, increase the lubricity during extruding, such that the molding process of the large-volume green body is easy to be performed, and the yield is improved.
Description
Technical field
The present invention relates to a kind of preparation method of ceramic honey comb, the preparation method that legal system is equipped with ceramic honey comb is fired in especially a kind of employing.
Background technology
Adopt the vehicle of diesel, need install exhaust purifier additional and come in the cleaning of off-gas poisonous irritant gas of human body and particulate matter.The pollutent that diesel engine is mainly got rid of is HC (stink), CO, PM (black smoke), NOX.HC causes stink, stimulates eyes, and mouth and nose throat respiratory tract is simultaneously poisonous and carcinogenic.CO influences respiratory system, stops human body to oxygen absorption, causes headache, and high density can cause death.PM (black smoke) causes respiratory system disease, and is carcinogenic.NOX stimulates respiratory tract.Exhaust purifier can reduce the pollutent of discharge very effectively.Oxidative diesel type catalyzed reaction carrier can make HC, CO and oxygen generation chemical reaction generate nontoxic water and C02.Oxidation catalytic converter (DOC) cost is minimum, but quite high purification efficiency is arranged.The measured exhaust purifier of matter has very high purification efficiency, simultaneously reaches 5 years work-ing life or more than 10000 working hourss.But the diesel motor volume is bigger, and volume is made difficulty greater than 10 liters big specification carrier, and base substrate is easy to generate inside and outside cracking in drying, sintering process, is lowered into motility rate.Though the intensity of diesel engine work in use is lower, because volume is big, base substrate inside and outside temperature difference in hot and cold change procedure is big, and is also easy to crack in the use.Big specification carrier will satisfy the thermal shocking between the room temperature to 550 ℃, just can possess use value.
Summary of the invention
The present invention seeks to the deficiency that exists at prior art, the preparation method of the good and ceramic honey comb that yield rate is high of a kind of thermal shock resistance is provided.
For achieving the above object, the preparation method of ceramic honey comb of the present invention can adopt following scheme:
A kind of preparation method of ceramic honey comb, this preparation method may further comprise the steps:
(1) prepares the talcum powder of 35-45 weight part, aluminum oxide, 25-30 parts by weight of clay, the silica powder of 5-10 weight part, the Vltra tears of 5-10 weight part, the stearic acid of 2-3 weight part and the deionized water of 20-30 weight part of 20-25 weight part.
(2) earlier above-mentioned materials is mixed.
(3) above-mentioned mixing material is become base substrate by extrusion moulding, and with body drying.
(4) above-mentioned base substrate is fired through 1400 ℃-1430 ℃, be incubated 10 hours, obtain finished product.Wherein, when firing, temperature per hour rises 50 ℃ until 1400 ℃-1430 ℃.
At problems of the prior art, the present invention prepares among the preparation method of ceramic honey comb and has used Vltra tears as binding agent, and the plasticity-when having strengthened moulding reduces the moulding difficulty; Use clay, improved product strength, can improve yield rate.Use silica powder in the raw material, improved and burnt till temperature of reaction, improved the thermal shock resistance of product.Used stearic acid in the raw material, the resistance when having alleviated extrusion moulding has increased the oilness when extruding, and makes the moulding process of large volume base substrate become more easy, can improve yield rate.
Embodiment
Below in conjunction with embodiment, further illustrate the present invention, should understand following embodiment only is used to the present invention is described and is not used in and limit the scope of the invention, after having read the present invention, those skilled in the art all fall within the application's claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
The present invention discloses a kind of preparation method of ceramic honey comb, and this preparation method may further comprise the steps:
(1) prepares the talcum powder of 35-45 weight part, aluminum oxide, 25-30 parts by weight of clay, the silica powder of 5-10 weight part, the Vltra tears of 5-10 weight part, the stearic acid of 2-3 weight part and the deionized water of 20-30 weight part of 20-25 weight part.
(2) earlier above-mentioned materials is mixed.
(3) above-mentioned mixing material is become base substrate by extrusion moulding, and with body drying.
(4) above-mentioned base substrate is fired through 1400 ℃-1430 ℃, be incubated 10 hours, obtain finished product.Wherein, when firing, temperature per hour rises 50 ℃ until 1400 ℃-1430 ℃.
In the method:
Described talcous particle property is D10:1um-2um, D50:9um-11um, D90:18um-20um;
The particle property of aluminum oxide is D10:1um-2um, D50:4um-6um, D90:15um-17um;
The particle property of clay is D10:0.5um-1um, D50:3um-4um, D90:11um-13um;
The particle property of silica powder is D10:1um-3um, D50:5um-7um, D90:18um-20um.
Embodiment 1:
The talcum powder of 35 weight parts, aluminum oxide, 30 parts by weight of clay, the silica powder of 10 weight parts, the Vltra tears of 6 weight parts, the stearic acid of 2 weight parts and the deionized water of 28 weight parts of 25 weight parts are provided, prepare ceramic honey comb through above-mentioned preparation method, the top temperature of wherein firing is 1420 ℃.
Embodiment 2:
Provide the talcum powder of 40 weight parts, aluminum oxide, 28 parts by weight of clay, the silica powder of 8 weight parts, the Vltra tears of 6 weight parts, the stearic acid of 2 weight parts and the deionized water of 27 weight parts of 24 weight parts to prepare ceramic honey comb through above-mentioned preparation method, the top temperature of wherein firing is 1415 ℃.
Embodiment 3:
Provide the talcum powder of 45 weight parts, aluminum oxide, 28 parts by weight of clay, the silica powder of 5 weight parts, the Vltra tears of 6 weight parts, the stearic acid of 2 weight parts and the deionized water of 27 weight parts of 22 weight parts to prepare ceramic honey comb through above-mentioned preparation method, the top temperature of wherein firing is 1410 ℃.
Among above-mentioned 3 embodiment, described talcous particle property is D10:1.8um, D50:10.5um, D90:18.9um;
The particle property of aluminum oxide is D10:1.5um, D50:5.3um, D90:16.5um;
The particle property of clay is D10:0.6um, D50:3.1um, D90:11.5um;
The particle property of silica powder is D10:2.1um, D50:6.8um, D90:19.5um.。
The ceramic honey comb that embodiment 1,2,3 is obtained experimentizes, and experimental result is with reference to shown in the following table:
Through testing and verification, the ceramic honey comb finished product that the preparation method of ceramic honey comb of the present invention makes has the advantage that thermal shock resistance is good and yield rate is high.
In the method, used Vltra tears as binding agent, the plasticity-when having strengthened moulding reduces the moulding difficulty; Use clay, improved product strength, can improve yield rate.Use silica powder in the raw material, improved and burnt till temperature of reaction, improved the thermal shock resistance of product.Used stearic acid in the raw material, the resistance when having alleviated extrusion moulding has increased the oilness when extruding, and makes the moulding process of large volume base substrate become more easy, can improve yield rate.
Claims (3)
1. the preparation method of a ceramic honey comb, it is characterized in that: this preparation method may further comprise the steps:
(1) prepares the talcum powder of 35-45 weight part, aluminum oxide, 25-30 parts by weight of clay, the silica powder of 5-10 weight part, the Vltra tears of 5-10 weight part, the stearic acid of 2-3 weight part and the deionized water of 20-30 weight part of 20-25 weight part;
(2) earlier above-mentioned materials is mixed;
(3) above-mentioned mixing material is become base substrate by extrusion moulding, and with body drying;
(4) above-mentioned base substrate is fired through 1400 ℃-1430 ℃, be incubated 10 hours, obtain finished product.
2. the preparation method of ceramic honey comb according to claim 1, it is characterized in that: described step (4) is when firing, and temperature per hour rises 50 ℃ until 1400 ℃-1430 ℃.
3. the preparation method of ceramic honey comb according to claim 1 and 2 is characterized in that:
Described talcous particle property is D10:1um-2um, D50:9um-11um, D90:18um-20um;
The particle property of aluminum oxide is D10:1um-2um, D50:4um-6um, D90:15um-17um;
The particle property of clay is D10:0.5um-1um, D50:3um-4um, D90:11um-13um;
The particle property of silica powder is D10:1um-3um, D50:5um-7um, D90:18um-20um.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101431542A CN102276287A (en) | 2011-05-31 | 2011-05-31 | Preparation method for honeycomb ceramics |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101431542A CN102276287A (en) | 2011-05-31 | 2011-05-31 | Preparation method for honeycomb ceramics |
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| CN102276287A true CN102276287A (en) | 2011-12-14 |
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| CN2011101431542A Pending CN102276287A (en) | 2011-05-31 | 2011-05-31 | Preparation method for honeycomb ceramics |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731106A (en) * | 2012-07-03 | 2012-10-17 | 宜兴王子环保科技有限公司 | Method for preparing thin-wall low-expansion high-thermal shock resistance cordierite honeycomb body |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885977A (en) * | 1973-11-05 | 1975-05-27 | Corning Glass Works | Anisotropic cordierite monolith |
| CN1379744A (en) * | 1999-09-01 | 2002-11-13 | 康宁股份有限公司 | Fabrication of ultra-thinwall cordierite structures |
| CN1406214A (en) * | 2000-04-07 | 2003-03-26 | 日本碍子株式会社 | Cordierite ceramic honeycomb of low thermal expansion and method for manufacturing the same |
| CN1827217A (en) * | 2005-03-01 | 2006-09-06 | 江苏省宜兴非金属化工机械厂 | Thin wall cordierite carrier for ceramic honeycomb catalyst and method for preparing the same |
| CN1903796A (en) * | 2006-08-11 | 2007-01-31 | 北京创导奥福精细陶瓷有限公司 | Technology of manufacturing low expansion coefficient honeycomb ceramic kitchen range sheet |
-
2011
- 2011-05-31 CN CN2011101431542A patent/CN102276287A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3885977A (en) * | 1973-11-05 | 1975-05-27 | Corning Glass Works | Anisotropic cordierite monolith |
| CN1379744A (en) * | 1999-09-01 | 2002-11-13 | 康宁股份有限公司 | Fabrication of ultra-thinwall cordierite structures |
| CN1406214A (en) * | 2000-04-07 | 2003-03-26 | 日本碍子株式会社 | Cordierite ceramic honeycomb of low thermal expansion and method for manufacturing the same |
| CN1827217A (en) * | 2005-03-01 | 2006-09-06 | 江苏省宜兴非金属化工机械厂 | Thin wall cordierite carrier for ceramic honeycomb catalyst and method for preparing the same |
| CN1903796A (en) * | 2006-08-11 | 2007-01-31 | 北京创导奥福精细陶瓷有限公司 | Technology of manufacturing low expansion coefficient honeycomb ceramic kitchen range sheet |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102731106A (en) * | 2012-07-03 | 2012-10-17 | 宜兴王子环保科技有限公司 | Method for preparing thin-wall low-expansion high-thermal shock resistance cordierite honeycomb body |
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Application publication date: 20111214 |