CN105777194A - Ceramic carrier grafting method - Google Patents
Ceramic carrier grafting method Download PDFInfo
- Publication number
- CN105777194A CN105777194A CN201610142041.3A CN201610142041A CN105777194A CN 105777194 A CN105777194 A CN 105777194A CN 201610142041 A CN201610142041 A CN 201610142041A CN 105777194 A CN105777194 A CN 105777194A
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- China
- Prior art keywords
- grafting
- skin
- slurry
- ceramic monolith
- slide glass
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/80—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone of only ceramics
- C04B41/81—Coating or impregnation
- C04B41/85—Coating or impregnation with inorganic materials
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B41/00—After-treatment of mortars, concrete, artificial stone or ceramics; Treatment of natural stone
- C04B41/45—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements
- C04B41/50—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials
- C04B41/5025—Coating or impregnating, e.g. injection in masonry, partial coating of green or fired ceramics, organic coating compositions for adhering together two concrete elements with inorganic materials with ceramic materials
- C04B41/5037—Clay, Kaolin
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Laminated Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
The invention discloses a ceramic carrier grafting method which comprises the following specific steps: (1) preparing grafting slurry, and coating a flexible carrier piece with a binding agent; (2) uniformly coating the flexible carrier piece with the grafting slurry according to expected thickness, and firmly adhering the grafting slurry to the flexible carrier piece through the binding agent; (3) drying the flexible carrier piece coated by the grafting slurry for later use; (4) adding water or a solution mixed with an inorganic adhesive or an organic adhesive to the surface of the grafting slurry adhered to the flexible carrier piece, so as to obtain a grafted carrier piece; (5) covering the ceramic carrier with the obtained grafted carrier piece, wherein one side covered by the grafting slurry contacts the outer surface of the ceramic carrier; (6) sintering in a kiln or a drying room, so as to complete grafting. Due to adjustment of the granularity, the moisture and the additive in the grafting slurry, and the like, the defects that drying cracking, warping and the like can be easily caused in the carrier piece coating and drying process in a conventional grafting process can be avoided.
Description
Technical field
The present invention relates to pottery skin-grafting technical field, especially relate to a kind of novel skin-grafting technique for larger vector and DPF.
Background technology
Honeycomb ceramic carrier is widely used in motor vehicle tail-gas purifying field, for a kind of ceramic product having honeycomb texture rindy.The dermatoplastic method of existing ceramic honey comb, the mode by hand of being smears one layer of plastic mud material at ceramic body outer wall, and the high temperature kiln of base substrate drying and more than 1300 DEG C just can become final products after burning till.Existing this complex process, energy consumption is significantly high, and efficiency is very low.
Present big specification honeycomb ceramic carrier (abbreviation larger vector), diesel particulate trap (being called for short DPF) technique of making skin graft are relatively complicated, first skin-grafting slurry is made, again through operator's either manually or mechanically equipment, skin-grafting slurry is coated on larger vector, DPF crust, ordinary circumstance will be coated with 2 times or more than.Often coating also to increase by one drying procedure one time.To final products, the consistency of thickness of skin-grafting material is difficult to ensure that, the overall dimensions of product also has bigger deviation.
Additionally skin-grafting slurry is because of having certain mobility and tack requirements, so the environment of storage and pot-life to slurry of making skin graft have harsh requirement；Being generally less than 72 hours, constant temperature and humidity preserves.The low temperature skin-grafting slurry holding time is even less than 12 hours.
Summary of the invention
For the problems referred to above that prior art exists, the applicant provides the dermatoplastic method of a kind of ceramic monolith.By the adjustment etc. to the skin-grafting granularity of slurry, moisture and additive in the present invention, solve conventional skin-grafting technique and be likely to produce the defect such as season cracking, warpage in slide glass coating and dry run.
Technical scheme is as follows:
The dermatoplastic method of a kind of ceramic monolith, concretely comprises the following steps:
(1) preparation skin-grafting slurry；Flexible slide glass is coated with binding agent；
(2) skin-grafting slurry thickness as required is uniformly coated on flexible slide glass, is firmly cohered with flexible slide glass by binding agent；
(3) by standby after the flexible slide glass drying after coating skin-grafting slurry；
(4) add, in the skin-grafting pulp surface being attached on flexible slide glass, the water or the solution that are mixed with inorganic glue or organic gel, obtain skin-grafting slide glass；
(5) slide glass of being made skin graft by step (4) gained covers the outer surface of ceramic monolith, is wherein coated with the side of skin-grafting slurry and the exterior surface of ceramic monolith；
(6) enter kiln or drying room burns till and completes skin-grafting.
The described skin-grafting slurry of step (1) is conventionally prepared according to requirements.The described skin-grafting slurry of step (1) uses the preparation of organic gel, inorganic glue, clay, aluminium oxide, high/low temperature solvent, and more than 1000 DEG C are burnt till or easy fired.Described organic gel is water soluble polymer binding agent.Described organic gel is cellulosic alkyl ether binding agent.
Step (1) adds the draw ratio cellulose more than 50 when preparation skin-grafting slurry.The described skin-grafting slurry granularity of step (1) is D10:5～10 μm；D50:40～80 μm；D90:90～250 μm.
The described flexible slide glass of step (2) is cloth, paper, adhesive plaster material, it is possible to burn without cinder in kiln.Step (2) skin-grafting slurry keeps moisture at 30～50wt% when coating flexible slide glass；Step (2) can layered coated according to different instructions for uses；Other functional layer can be coated with on skin-grafting pulp layer according to different instructions for uses.
Step (3) process after skin-grafting slurry and shelf-life of flexible slide glass composite bed up to 90 days or more than.
Useful the having the technical effect that of the present invention
1, the present invention is a kind of brand-new larger vector, DPF skin-grafting material production technology, has a extensive future.
2, the present invention is workable, improves effect, it is simple to mechanization batch production and storage.
3, present invention optimizes production technology, energy-saving and emission-reduction.
4, the present invention improves product quality, reduces product cost.
Accompanying drawing explanation
Fig. 1 is preparation technology flow chart of the present invention.
In figure: 1, skin-grafting slurry；2, flexible slide glass；3, water or solution；4, ceramic monolith.
Detailed description of the invention
Below in conjunction with the technological process shown in accompanying drawing 1, the present invention is specifically described.
(1) preparation skin-grafting slurry 1, and it is coated with binding agent on flexible slide glass 2:
Skin-grafting slurry 1 is conventionally prepared according to requirements, it is possible to use organic gel, inorganic glue, clay, aluminium oxide, high/low temperature solvent are prepared, and more than 1000 DEG C are burnt till or easy fired.It is specifically as follows 20kg Ludox, 15kg clay, 30kg grog, 5kg cellulose, 1kg additive and 20kg deionized water.
Cellulose is the draw ratio cellulose more than 50；It is specifically as follows additionBWW40 cellulose (draw ratio is 100).Employing BWW40 cellulosic skin-grafting slurry drying and shrink little, shape-retaining ability is good, good toughness, also has good rehydration.
Additive is preferably water soluble polymer binding agent, is specifically as follows cellulosic alkyl ether binding agent.
The granularity of skin-grafting slurry 1 is preferably D10:5～10 μm；D50:40～80 μm；D90:90～250 μm.
Skin-grafting slurry 1 prepare after can evacuation, so can improve slurry uniformity, the defect such as minimizing bubble.
(2) skin-grafting slurry 1 thickness as required is uniformly coated on flexible slide glass 2, is firmly cohered with flexible slide glass 2 by binding agent.Can layered coated according to different instructions for uses.Flexible slide glass 2 is cloth, paper, adhesive plaster material, it is possible to burn without cinder in kiln.According to different instructions for uses, it is also possible to be coated with other functional layer on skin-grafting pulp layer.
Skin-grafting slurry 1 keeps moisture at 30～50wt% when coating flexible slide glass 2, it is preferable that 30～40wt%.
(3) by coating skin-grafting slurry 1 after flexible slide glass 2 dry after standby；
(4) add, on skin-grafting slurry 1 surface being attached on flexible slide glass 2, the water or the solution 3 that are mixed with organic gel or inorganic glue, obtain skin-grafting slide glass.
(5) slide glass of being made skin graft by step (4) gained covers the outer surface of ceramic monolith 4, is wherein coated with the side of skin-grafting slurry 1 and the exterior surface of ceramic monolith 4；Ceramic monolith 4 is larger vector or DPF.
(6) enter kiln or drying room burns till and completes skin-grafting.During calcining, flexibility slide glass 4 and various binding agent are all burned or vapor away.
Claims (10)
1. the dermatoplastic method of a ceramic monolith, it is characterised in that concretely comprise the following steps:
(1) preparation skin-grafting slurry；Flexible slide glass is coated with binding agent；
(2) skin-grafting slurry thickness as required is uniformly coated on flexible slide glass, is firmly cohered with flexible slide glass by binding agent；
(3) by standby after the flexible slide glass drying after coating skin-grafting slurry；
(4) add, in the skin-grafting pulp surface being attached on flexible slide glass, the water or the solution that are mixed with inorganic glue or organic gel, obtain skin-grafting slide glass；
(5) slide glass of being made skin graft by step (4) gained covers the outer surface of ceramic monolith, is wherein coated with the side of skin-grafting slurry and the exterior surface of ceramic monolith；
(6) enter kiln or drying room burns till and completes skin-grafting.
2. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: the described skin-grafting slurry of step (1) is conventionally prepared according to requirements.
3. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: the described skin-grafting slurry of step (1) uses the preparation of organic gel, inorganic glue, clay, aluminium oxide, high/low temperature solvent, and more than 1000 DEG C are burnt till or easy fired.
4. the dermatoplastic method of ceramic monolith according to claim 3, it is characterised in that: described organic gel is water soluble polymer binding agent.
5. the dermatoplastic method of the ceramic monolith according to claim 3 or 4, it is characterised in that: described organic gel is cellulosic alkyl ether binding agent.
6. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: step (1) adds the draw ratio cellulose more than 50 when preparation skin-grafting slurry.
7. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: the described skin-grafting slurry granularity of step (1) is D10:5～10 μm；D50:40～80 μm；D90:90～250 μm.
8. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: the described flexible slide glass of step (2) is cloth, paper, adhesive plaster material, it is possible to burn without cinder in kiln.
9. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: step (2) skin-grafting slurry keeps moisture at 30～50wt% when coating flexible slide glass.
10. the dermatoplastic method of ceramic monolith according to claim 1, it is characterised in that: step (2) can layered coated according to different instructions for uses；Other functional layer can be coated with on skin-grafting pulp layer according to different instructions for uses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142041.3A CN105777194B (en) | 2016-03-11 | 2016-03-11 | A kind of dermatoplastic method of ceramic monolith |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610142041.3A CN105777194B (en) | 2016-03-11 | 2016-03-11 | A kind of dermatoplastic method of ceramic monolith |
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| Publication Number | Publication Date |
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| CN105777194A true CN105777194A (en) | 2016-07-20 |
| CN105777194B CN105777194B (en) | 2018-09-04 |
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| CN201610142041.3A Active CN105777194B (en) | 2016-03-11 | 2016-03-11 | A kind of dermatoplastic method of ceramic monolith |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094209A (en) * | 2022-06-02 | 2022-09-23 | 烟台杰瑞石油装备技术有限公司 | Preparation method and structure of wear-resistant surface, pipeline, connecting valve and operation equipment |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050159308A1 (en) * | 2003-12-31 | 2005-07-21 | Bliss Max P. | Ceramic structures having hydrophobic coatings |
| CN101612499A (en) * | 2009-07-22 | 2009-12-30 | 江苏高淳陶瓷股份有限公司 | A kind of preparation method of wall-flow honeycomb ceramic filter |
| CN102276288A (en) * | 2011-05-31 | 2011-12-14 | 宜兴王子制陶有限公司 | Preparation method of honeycomb ceramic having outer skin |
-
2016
- 2016-03-11 CN CN201610142041.3A patent/CN105777194B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050159308A1 (en) * | 2003-12-31 | 2005-07-21 | Bliss Max P. | Ceramic structures having hydrophobic coatings |
| CN101612499A (en) * | 2009-07-22 | 2009-12-30 | 江苏高淳陶瓷股份有限公司 | A kind of preparation method of wall-flow honeycomb ceramic filter |
| CN102276288A (en) * | 2011-05-31 | 2011-12-14 | 宜兴王子制陶有限公司 | Preparation method of honeycomb ceramic having outer skin |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115094209A (en) * | 2022-06-02 | 2022-09-23 | 烟台杰瑞石油装备技术有限公司 | Preparation method and structure of wear-resistant surface, pipeline, connecting valve and operation equipment |
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| Publication number | Publication date |
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| CN105777194B (en) | 2018-09-04 |
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