CN103288459A - Auxiliary device for sintering ceramic blank - Google Patents
Auxiliary device for sintering ceramic blank Download PDFInfo
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- CN103288459A CN103288459A CN2012100501970A CN201210050197A CN103288459A CN 103288459 A CN103288459 A CN 103288459A CN 2012100501970 A CN2012100501970 A CN 2012100501970A CN 201210050197 A CN201210050197 A CN 201210050197A CN 103288459 A CN103288459 A CN 103288459A
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- ceramic green
- sieve plate
- green embryo
- ball
- supplementary unit
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Abstract
The invention provides an auxiliary device for sintering a ceramic blank. The device comprises a bracket and balls, wherein the bracket comprises a base as well as an upper sieve plate and a lower sieve plate which are connected with the base; the balls can roll and penetrate through the interiors of sieve holes of the upper sieve plate and the lower sieve plate; the ceramic blank is arranged between the upper sieve plate and the lower sieve plate; the balls are contacted with the upper and the lower surfaces of the ceramic blank; and the upper and the lower surfaces of the ceramic blank are contacted with the balls in a point-to-point rolling manner. With the adoption of the balls, the friction force on the surface of the ceramic blank is reduced; during the sintering process, the ceramic blank can shrink without constraints because of the rolling of the balls, and the ceramic blank can shrink in all directions uniformly without warping; and the whole auxiliary device also prevent the ceramic blank from being broken if a whole plate is sintered on the ceramic blank.
Description
[technical field]
The present invention relates to ceramic field, relate in particular to the supplementary unit in the ceramic green embryo sintering process.
[background technology]
In the process of preparation ceramic plate, the ceramic green embryo need pass through the high temperature sintering densification, and formation is near the ripe pottery of theoretical density.The process of sintering is to begin to be warming up to sintering temperature from room temperature, during need be in the temperature insulation some time that organic additive decomposes, and the control heat-up rate discharges additive, is warming up to temperature requiredly then gradually, finishes sintering after being incubated specified time again.In this process, the ceramic green embryo shrinks with densification, but easily the shrinkage character of, levels homogeneity inhomogeneous owing to the sintering oven temperature field or heterogeneous ceramic layer differs big, ceramic green sheet compact density remaining inhomogeneous reasons such as stress in the heterogeneity of all directions or ceramic green sheet, cause the warpage situation of pottery in sintering process, ceramic plate is in case the bigger warpage of appearance then can not become qualified product.
Mainly concentrate in the processing, ceramic green embryo forming condition of powder for the method for anti-warpage at present, different forming methods uses different improvement methods.For dry-pressing formed, improve raw material ground purity, more equably mixed powder, carry out ball milling and increase granulation process more equably, make binder removal more stably carry out reducing influence to contraction.For flow casting molding, this kind ceramic green embryo contains solvent, additive is more, has bigger shrinking percentage, easier generation warpage situation.And the method for tackling warpage at present is together to solve when sintering technology is tied up in use, typically use a kind ofly to clip ceramic green embryo sheet up and down at the unshrinkable plate of sintering process, but this kind method also easily makes the pottery cracking.So present solution uncontrollable factor is many, control technology is complicated and effect is unstable.
[summary of the invention]
Technical problem to be solved by this invention is: the supplementary unit that a kind of ceramic green embryo anti-warpage, fracture in the low-temperature sintering process is provided.
The technical solution adopted for the present invention to solve the technical problems is: a kind of supplementary unit of ceramic green embryo sintering, described device comprises support and ball, described support comprises base and the upper sieve plate that links to each other with described base and following sieve plate, described ball rollably is applied in the sieve aperture of described upper sieve plate and following sieve plate, the ceramic green embryo is placed between described upper sieve plate and the following sieve plate, and described ball contacts with the upper and lower surface of described ceramic green embryo.
Described device also comprises the cover plate that covers described upper sieve plate ball.
Further improve, the weight of described cover plate is decided by actual demand.
Described upper sieve plate is preferably below the equatorial plane of described upper sieve plate ball.
The height of the described base of the described distance of sieve plate down bottom is preferably the radius of described ball.
The diameter of described ball is 0.5～1mm.
The diameter of described sieve aperture is than the big 0.1～0.5mm of diameter of described ball, and the pitch of holes of described sieve aperture is 2～5mm.
The area in described sieve aperture zone is greater than the area of described ceramic green embryo.
Described support, ball and cover plate are made by metallic substance.
Further improve high temperature resistant, not yielding and characteristic that the coefficient of expansion is little that described metallic substance has.
Described metallic substance is preferably zirconium white, aluminum oxide or cast steel.
Implement the present invention and have following beneficial effect: on the ceramic green embryo, all rollably contact with point with some ball points below, the employing ball has reduced the frictional force with the ceramic green embryo surface, on the ball of upper sieve plate, also can cover a cover plate, in sintering process, because the rolling of ball can allow the ceramic green embryo have no to shrink with being tied up, and all directions all can be shunk together and evenly, can warpage, cover plate on the ball also is to prevent ceramic green embryo warpage in sintering process, is pressed in the situation that sintering ruptures the appearance of ceramic green embryo on the ceramic green embryo if whole supplementary unit has also prevented whole plate.
[description of drawings]
Fig. 1 is stereographic map of the present invention.
[embodiment]
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
As shown in Figure 1, a kind of supplementary unit of ceramic green embryo sintering, this device comprises support 1, ball 4 and cover plate 7, described support 1 comprises base 1.1 and the upper sieve plate 2 and the following sieve plate 3 that link to each other with described base 1.1, all be provided with the sieve aperture 5 of proper alignment on upper sieve plate 2 and the following sieve plate 3, ball 4 rollably is applied in these sieve apertures 5, and cover plate 7 is incumbent on sieve plate 2 balls 4, ceramic green embryo 6 is placed between upper sieve plate 2 and the following sieve plate 3, and ball 4 contacts with the upper and lower surface of ceramic green embryo 6; The diameter of ball 4 is 0.5～1mm, the diameter of ball is very little, be in order to realize ball 4 and the point of ceramic green embryo 6 and contacting of point, thereby reduce mutual friction, and the diameter of sieve aperture 5 is than the big 0.1～0.5mm of diameter of ball 4, thereby can allow ball 4 freely roll in sieve aperture 5, the pitch of holes of sieve aperture 5 is set to 2～5mm, makes the upper and lower surface of ceramic green embryo be covered with abundant ball.
For also there is ball 4 at ceramic green embryo 6 edges, the area in sieve aperture 5 zones should be as far as possible greater than the area of described ceramic green embryo 6; But sometimes in order to reuse these devices, the area of possible ceramic green embryo 6 is excessive to make that the area in sieve aperture 5 zones is littler than the area of ceramic green embryo 6, even this situation, sieve aperture 5 region areas can not be less than 1/4th of ceramic green embryo 6 areas, be in order to make the ceramic green embryo surface contact ball more fully, to prevent that ceramic green embryo edge produces warpage in the sintering process like this.
Because whole supplementary unit and ceramic green embryo all will carry out sintering, so support 1, ball 4 and cover plate 7 need to adopt high temperature resistant (generally can not melt about 900 ℃), material not yielding and that the coefficient of expansion is little to make, for example the zirconium white in the metallic substance, aluminum oxide or cast steel.
In the present embodiment, upper sieve plate 2 is below the equatorial plane of ball 4, and following sieve plate 3 is the radius of ball 4 apart from the height of base 1.1 bottoms, prevents that the ceramic green embryo from roll out in the sieve aperture ball when shrinking in sintering process;
And the weight of cover plate 7 should be decided by actual demand, in the process of practical application, if the quality of cover plate is excessive or too small, all can have influence on the sintering quality of ceramic green embryo.
On the ceramic green embryo 6, all rollably contact with point with 4 on some balls below, the employing ball has reduced the frictional force with the ceramic green embryo surface, on the ball 4 of upper sieve plate 2, also can cover a cover plate 7, in sintering process, because the rolling of ball 4 can allow ceramic green embryo 6 have no to shrink with being tied up, and all directions all can be shunk together and evenly, can warpage, cover plate 7 on the ball also is to prevent ceramic green embryo warpage in sintering process, is pressed in the situation that sintering ruptures the appearance of ceramic green embryo on the ceramic green embryo if whole supplementary unit has also prevented whole plate.
In the above-described embodiments, only the present invention has been carried out exemplary description, but those skilled in the art can carry out various modifications to the present invention after reading present patent application under the situation that does not break away from the spirit and scope of the present invention.
Claims (9)
1. the supplementary unit of a ceramic green embryo sintering, it is characterized in that, described device comprises support and ball, described support comprises base and the upper sieve plate that links to each other with described base and following sieve plate, described ball rollably is applied in the sieve aperture of described upper sieve plate and following sieve plate, the ceramic green embryo is placed between described upper sieve plate and the following sieve plate, and described ball contacts with the upper and lower surface of described ceramic green embryo.
2. the supplementary unit of ceramic green embryo sintering according to claim 1 is characterized in that, described device also comprises the cover plate that covers described upper sieve plate ball.
3. the supplementary unit of ceramic green embryo sintering according to claim 1 is characterized in that, described upper sieve plate is preferably below the equatorial plane of described upper sieve plate ball.
4. the supplementary unit of ceramic green embryo sintering according to claim 1 is characterized in that, the height of the described base of the described distance of sieve plate down bottom is preferably the radius of described ball.
5. the supplementary unit of ceramic green embryo sintering according to claim 1 is characterized in that, the diameter of described ball is 0.5～1mm.
6. the supplementary unit of ceramic green embryo sintering according to claim 1 or 5 is characterized in that the diameter of described sieve aperture is than the big 0.1～0.5mm of diameter of described ball, and the pitch of holes of described sieve aperture is 2～5mm.
7. the supplementary unit of ceramic green embryo sintering according to claim 1 is characterized in that, the area in described sieve aperture zone is greater than the area of described ceramic green embryo.
8. the supplementary unit of ceramic green embryo sintering according to claim 1 and 2 is characterized in that, described support, ball and cover plate are made by metallic substance.
9. the supplementary unit of ceramic green embryo sintering according to claim 8 is characterized in that, described metallic substance is preferably zirconium white, aluminum oxide or cast steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050197.0A CN103288459B (en) | 2012-02-29 | 2012-02-29 | A kind of servicing unit of ceramic green sintering |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050197.0A CN103288459B (en) | 2012-02-29 | 2012-02-29 | A kind of servicing unit of ceramic green sintering |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103288459A true CN103288459A (en) | 2013-09-11 |
| CN103288459B CN103288459B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210050197.0A Active CN103288459B (en) | 2012-02-29 | 2012-02-29 | A kind of servicing unit of ceramic green sintering |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411153A (en) * | 2019-07-16 | 2019-11-05 | 山东工业陶瓷研究设计院有限公司 | A kind of quickly drying method of thin wall hollow earthenware slab film green body |
| CN112372803A (en) * | 2020-11-10 | 2021-02-19 | 重庆市荣昌区新兴建材有限公司 | Sintering production process of module wallboard |
| CN115156023A (en) * | 2022-09-02 | 2022-10-11 | 江苏兴野食品有限公司 | Cereal cleaning and screening machine |
| CN115534055A (en) * | 2022-11-28 | 2022-12-30 | 山东硅元新型材料股份有限公司 | Gel injection molding mold and process for preparing aluminum oxide double-hole guide rail green body |
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| JPS62128973A (en) * | 1985-11-25 | 1987-06-11 | 松下電工株式会社 | Method of burning ceramic substrate |
| JPH10324574A (en) * | 1997-05-20 | 1998-12-08 | Nec Corp | Method for firing ceramic element |
| CN2595520Y (en) * | 2002-12-26 | 2003-12-31 | 威海蓝旗磨料磨具有限公司 | Porous drying support plate special for ceramic grinding apparatus |
| CN1532168A (en) * | 2003-03-24 | 2004-09-29 | Tdk株式会社 | Baking method for ceramic plate and producing method |
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2012
- 2012-02-29 CN CN201210050197.0A patent/CN103288459B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62128973A (en) * | 1985-11-25 | 1987-06-11 | 松下電工株式会社 | Method of burning ceramic substrate |
| JPH10324574A (en) * | 1997-05-20 | 1998-12-08 | Nec Corp | Method for firing ceramic element |
| CN2595520Y (en) * | 2002-12-26 | 2003-12-31 | 威海蓝旗磨料磨具有限公司 | Porous drying support plate special for ceramic grinding apparatus |
| CN1532168A (en) * | 2003-03-24 | 2004-09-29 | Tdk株式会社 | Baking method for ceramic plate and producing method |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110411153A (en) * | 2019-07-16 | 2019-11-05 | 山东工业陶瓷研究设计院有限公司 | A kind of quickly drying method of thin wall hollow earthenware slab film green body |
| CN112372803A (en) * | 2020-11-10 | 2021-02-19 | 重庆市荣昌区新兴建材有限公司 | Sintering production process of module wallboard |
| CN115156023A (en) * | 2022-09-02 | 2022-10-11 | 江苏兴野食品有限公司 | Cereal cleaning and screening machine |
| CN115534055A (en) * | 2022-11-28 | 2022-12-30 | 山东硅元新型材料股份有限公司 | Gel injection molding mold and process for preparing aluminum oxide double-hole guide rail green body |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103288459B (en) | 2016-05-04 |
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Effective date of registration: 20210425 Address after: 518057 2 / F, software building, No.9, Gaoxin Middle Road, Nanshan District, Shenzhen, Guangdong Province Patentee after: KUANG-CHI INSTITUTE OF ADVANCED TECHNOLOGY Address before: 518034. A, 18B, CIC international business center, 1061 Mei Xiang Road, Shenzhen, Guangdong, Futian District Patentee before: KUANG-CHI INNOVATIVE TECHNOLOGY Ltd. |