CN103044031B - Preparation method of honeycomb ceramic high in skin firmness - Google Patents
Preparation method of honeycomb ceramic high in skin firmness Download PDFInfo
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- CN103044031B CN103044031B CN201310020209.XA CN201310020209A CN103044031B CN 103044031 B CN103044031 B CN 103044031B CN 201310020209 A CN201310020209 A CN 201310020209A CN 103044031 B CN103044031 B CN 103044031B
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Abstract
The invention discloses a preparation method of a honeycomb ceramic high in skin firmness, and the preparation method comprises the following steps of: weighing 10-15% of phosphate solution, 20-25% of alumina sol, 50-60% of clinker and 5-10% of de-ionized water in weight proportion; uniformly mixing the phosphate solution, the alumina sol, the clinker and the water to obtain skin grafting mud; providing a honeycomb ceramic blank, attaching the mud on the skin of the blank to skin-graft the blank; and curing the skin-grated blank for 0.5-1hour at 120-150 DEG C, not baking in a kiln at high temperature, to obtain the product. The honeycomb ceramic prepared by the method disclosed by the invention, because the skin is not softened after being soaked for 24 hours in acid liquid at pH value of 1 and not cracked after being suddenly cooled and heated for three times at 550 DEG C, is high in skin firmness and enhanced in strength, and is applicable to severe motor vehicle using environment.
Description
Technical field
The present invention relates to a kind of preparation method of ceramic honey comb, the preparation method of the ceramic honey comb that especially a kind of crust firmness is high.
Background technology
Honeycomb ceramic carrier is widely used in motor vehicle tail-gas purifying field, is the ceramic product of a kind of tool honeycomb structure rindy.The dermatoplastic method of existing ceramic honey comb, the mode being is by hand smeared one deck plastic mud material at ceramic body outer wall, and the above high temperature kiln of base substrate drying and 1300 ℃ burns till and just can become the finished product afterwards.Existing this complex process, energy consumption is very high, and efficiency is very low.
China Patent Publication No. CN102276288A discloses the preparation method of tool ceramic honey comb rindy, and the method does not need the ceramic honey comb after skin-grafting to fire and can obtain having water insoluble, and softening temperature is high, the finished product of Heat stability is good.But the firmness of ceramic honey comb crust is low in the method, the firmness of the crust of too late high-temperature firing, only has 500 ℃, the risk that has crust cracking and come off under severe motor vehicle environment for use.
Summary of the invention
The object of the present invention is to provide the preparation method of the ceramic honey comb that a kind of crust firmness is high, is intensity to improve prepared ceramic honey comb crust firmness.
In order to solve above technical problem, the technical solution used in the present invention is as follows.
A preparation method for the ceramic honey comb that crust firmness is high, is characterized in that comprising the following steps:
(1) take the phosphate solution of 10-15% weight percent, the grog of the aluminium colloidal sol of 20-25% weight percent, 50-60% weight percent and the deionized water of 5-10% weight percent;
(2) above-mentioned phosphate solution, aluminium colloidal sol, grog and deionized water are uniformly mixed into skin-grafting pug;
(3) provide ceramic honey comb base substrate, above-mentioned pug is attached and billet surface, idiosome is made skin graft;
(4) the good base substrate of above-mentioned skin-grafting is positioned at 120-150 ℃ of temperature and solidifies 0.5-1 hour, get product.
While making skin graft operation in described step (3), while being also included in the not yet curing still softness of pug, carry out scraping dressing operation.
Described phosphate solution is phosphate dihydrogen aluminum solution, and its mass percent is 60-80%.
The solid content of described aluminium colloidal sol is 20-25%, and pH value is 4-5, and micelle median size is 30-40nm.
The median size of described grog is 30-50 μ m.
The present invention has beneficial effect.The present invention, due to by the molten skin-grafting for ceramic honey comb of phosphoric acid salt, improves the crust intensity making.Its in the acid solution of pH=1, soak 24 hours softening, the cold and hot sudden turn of events is not ftractureed for 3 times at 550 ℃, makes it in severe environment for use, have higher thermostability.
Embodiment
For clearer explanation the present invention, enumerate following examples, but its to scope of the present invention without any restriction.
Ceramic honey comb base substrate in the method is existing ceramic honey comb base substrate.
Embodiment 1:
Take the phosphate solution of 10% weight percent, the grog of the aluminium colloidal sol of 20% weight percent, 50% weight percent and the deionized water of 5% weight percent are uniformly mixed into pug, through above-mentioned dermatoplastic method, prepare the ceramic honey comb that crust firmness is high.Selecting massfraction is 80% phosphate dihydrogen aluminum solution; Solid content is that 25%, pH value is 4, the aluminium colloidal sol that micelle median size is 30nm; Median size is the grog of 30 μ m.Base substrate is positioned at 120 ℃ of temperature and solidifies 1 hour.
Embodiment 2:
Take the phosphate solution of 12% weight percent, the grog of the aluminium colloidal sol of 22% weight percent, 54% weight percent and the deionized water of 7% weight percent are uniformly mixed into pug, through above-mentioned dermatoplastic method, prepare the ceramic honey comb that crust firmness is high.Selecting massfraction is 60% phosphate dihydrogen aluminum solution; Solid content is that 20%, pH value is 5, the aluminium colloidal sol that micelle median size is 40nm; Median size is the grog of 50 μ m.Base substrate is positioned at 150 ℃ of temperature and solidifies 0.5 hour.
Embodiment 3:
Take the phosphate solution of 14% weight percent, the grog of the aluminium colloidal sol of 24% weight percent, 57% weight percent and the deionized water of 8% weight percent are uniformly mixed into pug, through above-mentioned dermatoplastic method, prepare the ceramic honey comb that crust firmness is high.Selecting massfraction is 70% phosphate dihydrogen aluminum solution; Solid content is that 22%, pH value is 4.5, the aluminium colloidal sol that micelle median size is 35nm; Median size is the grog of 40 μ m.Base substrate is positioned at 130 ℃ of temperature and solidifies 0.6 hour.
Embodiment 4:
Take the phosphate solution of 15% weight percent, the grog of the aluminium colloidal sol of 25% weight percent, 60% weight percent and the deionized water of 10% weight percent are uniformly mixed into pug, through above-mentioned dermatoplastic method, prepare the ceramic honey comb that crust firmness is high.Selecting massfraction is 70% phosphate dihydrogen aluminum solution; Solid content is that 22%, pH value is 4.5, the aluminium colloidal sol that micelle median size is 35nm; Median size is the grog of 40 μ m.Base substrate is positioned at 130 ℃ of temperature and solidifies 0.6 hour.
The ceramic honey comb that embodiment 1,2,3 and 4 is obtained is tested, and experimental result is with reference to shown in table 1.
Its strength trial result of ceramic honey comb that table 1. utilizes the inventive method to make
Through testing and verification, the dermatoplastic method for ceramic honey comb of the present invention adopts low temperature drying technology, and the crust making to have firmness high, the feature that thermal shock resistance is strong, meets the requirement of product.The technique of present method is simple, has obviously improved firmness and the thermal shock resistance of product crust, has improved quality product.
The foregoing is only preferred embodiments of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (1)
1. a preparation method for the ceramic honey comb that crust firmness is high, is characterized in that comprising the following steps:
(1) take the phosphate solution of 10-15% weight percent, the grog of the aluminium colloidal sol of 20-25% weight percent, 50-60% weight percent and the deionized water of 5-10% weight percent;
(2) above-mentioned phosphate solution, aluminium colloidal sol, grog and deionized water are uniformly mixed into skin-grafting pug;
(3) provide ceramic honey comb base substrate, above-mentioned pug is attached to billet surface, base substrate is made skin graft;
(4) the good base substrate of above-mentioned skin-grafting is positioned at 120-150 ℃ of temperature and solidifies 0.5-1 hour, get product.
2. the preparation method of the ceramic honey comb that a kind of crust firmness according to claim 1 is high, is characterized in that: while making skin graft operation in described step (3), while being also included in the not yet curing still softness of pug, carry out scraping dressing operation.
3. the preparation method of the ceramic honey comb that a kind of crust firmness according to claim 1 and 2 is high, is characterized in that: described phosphate solution is phosphate dihydrogen aluminum solution, in described phosphate dihydrogen aluminum solution, the shared mass percent of aluminium dihydrogen phosphate is 60-80%.
4. the preparation method of the ceramic honey comb that a kind of crust firmness according to claim 1 and 2 is high, is characterized in that: the solid content of described aluminium colloidal sol is 20-25%, pH value is 4-5, and micelle median size is 30-40nm.
5. the preparation method of the ceramic honey comb that a kind of crust firmness according to claim 1 and 2 is high, is characterized in that: the median size of described grog is 30-50 μ m.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310020209.XA CN103044031B (en) | 2013-01-18 | 2013-01-18 | Preparation method of honeycomb ceramic high in skin firmness |
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| CN201310020209.XA CN103044031B (en) | 2013-01-18 | 2013-01-18 | Preparation method of honeycomb ceramic high in skin firmness |
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| CN103044031A CN103044031A (en) | 2013-04-17 |
| CN103044031B true CN103044031B (en) | 2014-04-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103396103B (en) * | 2013-07-17 | 2015-11-18 | 李少荣 | A kind of make skin based on large, honeycomb ceramic monolith make skin mud |
| CN105503269A (en) * | 2015-12-15 | 2016-04-20 | 凯龙蓝烽新材料科技有限公司 | Preparing method for bonding material used for particulate trap |
| CN107777991A (en) * | 2017-11-06 | 2018-03-09 | 江苏宜翔陶瓷科技有限公司 | Bonding mud suitable for unlike material pug |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2003095768A (en) * | 2001-09-18 | 2003-04-03 | Ngk Insulators Ltd | Honeycomb structure and method of manufacturing the same |
| CN102020475B (en) * | 2010-09-29 | 2012-10-17 | 北京安泰恒业科技有限公司 | Ceramic coating used for heating furnace |
| CN102276288B (en) * | 2011-05-31 | 2013-01-23 | 宜兴王子制陶有限公司 | Preparation method of honeycomb ceramic having outer skin |
| CN102850062A (en) * | 2011-06-29 | 2013-01-02 | 宝山钢铁股份有限公司 | Corundum coating material |
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Inventor after: Sun Min Inventor after: Zhu Zengzan Inventor after: Guo Yun Inventor after: Zhan Wangcheng Inventor after: Zhang Zhigang Inventor after: Lu Guanzhong Inventor before: Sun Min Inventor before: Zhu Zengzan Inventor before: Zhang Zhigang |
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Address after: 212132 No. 78 Jingang Avenue, New District, Jiangsu, Zhenjiang Patentee after: KAILONG LANFENG NEW MATERIAL TECHNOLOGY CO., LTD. Address before: Zhenjiang City, Jiangsu province 212000 Dingmao Road No. 36 building B3 latitude four Patentee before: Jiangsu Lanfeng New Material Technology Co., Ltd. |