CN101219898B - Ceramic product baking and kiln-loading method - Google Patents
Ceramic product baking and kiln-loading method Download PDFInfo
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- CN101219898B CN101219898B CN2007101163415A CN200710116341A CN101219898B CN 101219898 B CN101219898 B CN 101219898B CN 2007101163415 A CN2007101163415 A CN 2007101163415A CN 200710116341 A CN200710116341 A CN 200710116341A CN 101219898 B CN101219898 B CN 101219898B
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Abstract
The invention relates to a firing and kiln placing method of ceramic products, belonging to a technical field for producing the ceramic products and comprising placing half-finished ceramic products on a calcining-endure board; the method is characterized by firstly placing refractory balls on the calcining-endure board and then placing the half-finished ceramic products on the refractory balls. The method effectively solves the problems of distortion and cracks during the firing process of the ceramic products and increases the product quality and firing qualified rate; in addition, the method has high production efficiency and low production cost.
Description
Technical field
The present invention relates to a kind of baking and kiln-loading method of ceramic product, belong to the production technical field of ceramic product.
Background technology
The ceramic product Application Areas is more and more wider at present, and development is rapid, and ceramic product no longer is confined to the scope of daily necessities.Stupalith compare with metallic substance have wear-resistant, high strength, advantages such as high rigidity, acid and alkali-resistance, corrosion-resistant, low bulk, low creep, can adapt to environment and working condition that metal and polymer are difficult to bear.Thereby be widely used in fields such as oil, chemical industry, coal, electric power, weaving, electronics, Aeronautics and Astronautics, pottery, automobile, food, medicine and papermaking.Along with the continuous expansion of ceramic product Application Areas, demand is also in continuous increase.
But ceramic product, distortion, problems of crack appear easily in especially large-sized ceramic product in sintering process, and it is low to cause burning till yield rate, is never effectively solved.In traditional production method, mainly adopt following method loading of kiln during the product sintering: first method is that product is placed on the load bearing board (saggar) of profiling; Second method is at the load bearing board (backing plate base substrate) of product bottom pad one deck with material.Because it is that a volume constantly reduces, density constantly increases that ceramic product burns till, the process that promptly size is constantly dwindled, product is constantly fine and close.In the first method, because the gravity of product itself hinders or the obstruction of saggar, the stressed excessive bottom that causes product, product bottom can not free shrink, causes the product distortion easily and ftractures, and sintering qualified rate is low, has only about 60%.In the second method, though have the backing plate energy and the product of identical material to shrink together, but because backing plate injustice or backing plate blank strength are low etc., also can cause backing plate cracking and then hinder free shrink in the product sintering process, finally cause product bottom cracking, distortion, and backing plate can only use once, can not transfer to again and be other products starting material to be caused very big waste.
Summary of the invention
The object of the present invention is to provide a kind of baking and kiln-loading method of ceramic product, solved distortion, cracking problem in the ceramic product sintering process effectively, improved quality product and sintering qualified rate, the production efficiency height, and also production cost is low.
The baking and kiln-loading method of ceramic product of the present invention comprises bottom porous ceramics work in-process (product to be burnt after the moulding) are placed on the load bearing board, it is characterized in that at first laying on load bearing board refractory ball, ceramic semi-finished product is placed on the refractory ball again.
Ceramic semi-finished product is in sintering process, and during volumetric shrinkage, refractory ball can roll, thereby the free evenly contraction of ceramic semi-finished product energy, thereby has solved the distortion and the problems of crack of shrinking initiation.And the refractory ball of laying can collect repeated use behind product kiln discharge (stove), greatly reduce production cost.
Wherein:
It is suitable that the diameter of refractory ball is controlled to be 0.5-3mm, the preferred alumina balls of refractory ball.
Precaution when adopting the inventive method:
(1) this method is fit to the ceramic product that large size has flat-bottom structure, is not suitable for the domestic ceramic product of bottom glazing.
(2) load bearing board used of loading of kiln requires smooth, leakless, refractory ball to roll more freely.
(3) firing temperature of refractory ball will be higher than the firing temperature of ceramic product, guarantees that in the product sintering process, refractory ball can not soften or bond, and does not react with load bearing board and ceramic product.
Concrete processing requirement of the present invention and step are as follows:
(1) blank is fixed and dried, will repair that bottom surface that is placed on the bead smooth especially;
(2) load bearing board that loading of kiln is used is cleaned out, be placed in the calcining kiln or the correct position in the firing furnace, and evenly lay the last layer refractory ball, if tubulose or ring-type product, requirement is near the placement ceramic semi-finished product, especially some refractory balls are laid in product inside more, are beneficial to product and inwardly shrink;
(3) ready ceramic semi-finished product is placed on the refractory ball that lays, requires the product and the relative position all directions of the refractory ball that the lays uniformity of trying one's best;
After loading of kiln is finished, according to conventional firing process firing ceramics product.
After burning till, burned ceramic product is taken out, and will may clean out by adherent refractory ball on the product bottom surface, used refractory ball collects, and is reusable.
Use baking and kiln-loading method of the present invention, not only can utilize refractory ball freely rolling in the product sintering process to guarantee product free shrink in sintering process, and each is consistent to shrinking, the contraction of product can not hindered, thereby prevented distortion and cracking in the product sintering process effectively, improved the yield rate and the products production efficient of product sintering process greatly.Bead is reusable simultaneously, also greatly reduces the production cost of ceramic product.
Embodiment
The invention will be further described below in conjunction with embodiment.
Ceramic product is ceramic ring-type product, and raw material is aluminum oxide (alumina content 92%), and the product size external diameter after burning till is that 240mm, internal diameter are 200mm, highly are to adopt baking and kiln-loading method of the present invention by 100mm, has obtained good result.
Concrete steps are as follows:
(1) bottom porous ceramics product blank is fixed, will be repaired that end face that is placed on the refractory ball smooth especially.
(2) use electrical kiln to burn till, the refractory slab that loading of kiln is used is cleaned out, be placed on suitable position in the kiln, and be that the alumina-ceramic refractory ball (alumina content is more than 99%) of 2.5mm is paved into an annular with diameter on the refractory slab, require in the annular round littler than product internal diameter, the annular external diameter is bigger than product, requires to place the inner bead of product and product and spreads evenly.
(3) ready ceramic semi-finished product is placed on the refractory ball of completing, requires the ceramic semi-finished product and the relative position all directions of the refractory ball the completed uniformity of trying one's best.
After burning till, treat that temperature is cooled to kiln discharge after the kiln discharge temperature.Take out the ceramic product after burning till from electrical kiln, and will may clean out by adherent aluminum oxide refractory ball on the ceramic product end face, and used aluminum oxide refractory ball is collected, can reuse next time again, reduces production costs.
Ceramic ring-type product after burning till, the inside/outside diameter size deviation is in 1mm, and sintering qualified rate reaches more than 90%, and sintering qualified rate has improved production efficiency than the raising greatly of traditional kiln-loading method, has reduced production cost.
Claims (3)
1. the baking and kiln-loading method of a ceramic product comprises bottom porous ceramics work in-process are placed on the load bearing board, it is characterized in that at first laying on load bearing board refractory ball, ceramic semi-finished product is placed on the refractory ball again.
2. the baking and kiln-loading method of ceramic product according to claim 1, the diameter that it is characterized in that refractory ball is 0.5-3mm.
3. the baking and kiln-loading method of ceramic product according to claim 1 and 2 is characterized in that refractory ball is alumina balls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101163415A CN101219898B (en) | 2007-12-22 | 2007-12-22 | Ceramic product baking and kiln-loading method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2007101163415A CN101219898B (en) | 2007-12-22 | 2007-12-22 | Ceramic product baking and kiln-loading method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101219898A CN101219898A (en) | 2008-07-16 |
| CN101219898B true CN101219898B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2007101163415A Active CN101219898B (en) | 2007-12-22 | 2007-12-22 | Ceramic product baking and kiln-loading method |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101413914B (en) * | 2008-09-26 | 2012-04-04 | 深圳市日理江澍实业有限公司 | Method for co-firing ceramic sensing head substrate and platinum gold electrode of oxygen sensor |
| CN102086124A (en) * | 2010-12-14 | 2011-06-08 | 高邑县富当特种耐火材料有限公司 | Loading and unloading method in firing process of ceramic product |
| CN102173752A (en) * | 2011-01-27 | 2011-09-07 | 上海高诚艺术包装有限公司 | Method for firing special-shaped ceramic |
| CN104129997B (en) * | 2014-07-28 | 2016-06-08 | 孝感正华电真空材料有限责任公司 | A kind of high-sintering process of dry-pressing porcelain tube |
| CN106220189B (en) * | 2016-07-28 | 2019-01-29 | 山东工业陶瓷研究设计院有限公司 | The once-firing method of large scale thick-walled quartz ceramics revolution body component |
| CN106830949B (en) * | 2017-02-17 | 2019-11-22 | 骊住美标卫生洁具制造（上海）有限公司 | A kind of ceramic sintering method |
| CN107473751B (en) * | 2017-07-27 | 2019-10-25 | 佛山市非特新材料有限公司 | A kind of production method of two-part sintering ceramic mold core |
| CN108530055A (en) * | 2018-06-22 | 2018-09-14 | 广东凯盛光伏技术研究院有限公司 | A kind of ITO target of efficient oxygen flow puts-sintering method |
| CN110108130A (en) * | 2019-04-30 | 2019-08-09 | 惠达卫浴股份有限公司 | A kind of kiln-loading method of sanitary ceramics |
| CN113375463B (en) * | 2021-06-30 | 2025-05-06 | 广州市尤特新材料有限公司 | Powder distributor for placing target green body, positioning piece and sintering method of rotating target |
| CN113372124A (en) * | 2021-06-30 | 2021-09-10 | 广州市尤特新材料有限公司 | Sintering method of target material |
| CN115819094B (en) * | 2022-12-21 | 2024-05-24 | 无锡特科精细陶瓷有限公司 | Method for reducing sintering cracking of large-size and large-weight ceramic product |
-
2007
- 2007-12-22 CN CN2007101163415A patent/CN101219898B/en active Active
Non-Patent Citations (4)
| Title |
|---|
| 水既生.陶瓷古代窑具及装烧方法.陶瓷研究与职业教育 4.1984,(4),42-55. |
| 水既生.陶瓷古代窑具及装烧方法.陶瓷研究与职业教育 4.1984,(4),42-55. * |
| 王晓春.新型陶瓷隧道窑-球道式隧道窑.现代技术陶瓷 1.2000,(1),30-32. |
| 王晓春.新型陶瓷隧道窑-球道式隧道窑.现代技术陶瓷 1.2000,(1),30-32. * |
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| CN101219898A (en) | 2008-07-16 |
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