JPH03137492A - Ceramic baking jig - Google Patents
Ceramic baking jigInfo
- Publication number
- JPH03137492A JPH03137492A JP27663289A JP27663289A JPH03137492A JP H03137492 A JPH03137492 A JP H03137492A JP 27663289 A JP27663289 A JP 27663289A JP 27663289 A JP27663289 A JP 27663289A JP H03137492 A JPH03137492 A JP H03137492A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- fired
- jig
- materials
- firing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 53
- 230000002093 peripheral effect Effects 0.000 claims abstract description 10
- 238000010304 firing Methods 0.000 claims description 40
- 239000000463 material Substances 0.000 abstract description 8
- 239000000843 powder Substances 0.000 abstract description 5
- 229910010293 ceramic material Inorganic materials 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 abstract description 3
- 229910001928 zirconium oxide Inorganic materials 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000003985 ceramic capacitor Substances 0.000 description 4
- 239000003989 dielectric material Substances 0.000 description 4
- 239000011324 bead Substances 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 229910000416 bismuth oxide Inorganic materials 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000994 depressogenic effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- TYIXMATWDRGMPF-UHFFFAOYSA-N dibismuth;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Bi+3].[Bi+3] TYIXMATWDRGMPF-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Landscapes
- Furnace Charging Or Discharging (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は形状や寸法の異なる複数種類のセラミック製品
の焼成に使用されるセラミック焼成用治具に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a ceramic firing jig used for firing a plurality of types of ceramic products having different shapes and dimensions.
（従来の技術）
一般に、セラミックコンデンサは耐電圧が高くなるにつ
れてそれに使用されるセラミック誘電体の形状が大きく
なる。(Prior Art) Generally, as the withstand voltage of a ceramic capacitor becomes higher, the shape of the ceramic dielectric used therein becomes larger.
従来、セラミックコンデンサのセラミック誘電体の焼成
には、たとえば第７図に示すように、平板状治具ｌとそ
の上に載置される横断面が７字状の溝２を有する溝付き
治具３が使用される。この溝付き治具３の上記溝２には
、焼成されるディスク状に成形されたセラミック誘電体
４がその外周面を上記溝２の溝面に当接させて上記平板
状治具ｌに対して垂直に支持され、連続式のトンネル炉
やバッチ式の竪型炉にて焼成される。Conventionally, for firing a ceramic dielectric material of a ceramic capacitor, a flat jig l and a grooved jig having a groove 2 with a figure-7 cross section placed thereon are used, for example, as shown in FIG. 3 is used. In the groove 2 of this grooved jig 3, a ceramic dielectric 4 molded into a disk shape to be fired is placed in contact with the groove surface of the groove 2 with its outer circumferential surface against the flat plate-shaped jig l. It is supported vertically and fired in a continuous tunnel furnace or a batch-type vertical furnace.
（発明が解決しようとする課題）
ところで、上記従来のセラミック焼成用治具では、セラ
ミックコンデンサが高圧コンデンサで、そのセラミック
誘電体４がたとえば直径が５０ｍｍ−１厚みが２０＋ｎ
ｍＩのディスク状で、酸化鉛や酸化ビスマスを含有する
形状の大きなものである場合、その自重のため、焼成さ
れるセラミック誘電体４が溝付き治具３との当接部分で
変形したり、セラミック誘電体４が溝付き治具３を構成
しているセラミック材料と化学反応し、焼成後のセラミ
ック誘電体４に組成ずれが生じるという問題があった。(Problems to be Solved by the Invention) By the way, in the above conventional ceramic firing jig, the ceramic capacitor is a high voltage capacitor, and the ceramic dielectric 4 has a diameter of 50 mm and a thickness of 20+n, for example.
If the ceramic dielectric body 4 is large in shape and contains lead oxide or bismuth oxide, the ceramic dielectric body 4 to be fired may be deformed at the contact area with the grooved jig 3 due to its own weight. There was a problem in that the ceramic dielectric 4 chemically reacted with the ceramic material constituting the grooved jig 3, resulting in a compositional deviation in the ceramic dielectric 4 after firing.
上記従来のセラミック焼成用治具ではまた、平板状治具
ｌと溝付き治具３の２つの治具を必要とするので、その
熱容量が大きくなり、それだけ焼成に要する熱エネルギ
ーが大きくなるといった問題があった。The above-mentioned conventional ceramic firing jig also requires two jigs, the flat jig 1 and the grooved jig 3, which increases its heat capacity, which increases the thermal energy required for firing. was there.
このような問題を解消するため、平板状治具ｌの上に焼
成するセラミック誘電体４を横置きにして焼成すること
も行なわれているが、このものでは、−枚の平板状治具
１の上に載置できるセラミック誘電体４の枚数が少なく
、処理量が少なくなるという問題があった。In order to solve this problem, the ceramic dielectric material 4 to be fired is placed horizontally on a flat plate-like jig 1 for firing. There is a problem in that the number of ceramic dielectrics 4 that can be placed on top is small and the amount of processing is reduced.
本発明の目的は、形状の異なる複数種類の被焼成物を焼
成することができ、焼成後に被焼成物に形状の変形や組
成ずれが生じることがないセラミック焼成用治具を提供
することである。SUMMARY OF THE INVENTION An object of the present invention is to provide a ceramic firing jig that can fire a plurality of types of objects having different shapes and that does not cause shape deformation or composition deviation in the objects after firing. .
（課題を解決するための手段）
このため、本発明は、ディスク状のセラミックの被焼成
物および面積に比較して厚みが比較的小さい平板状のセ
ラミックの被焼成物を焼成炉内にて支持して焼成するた
めのセラミック焼成用治具であって、
セラミック製の平板からなり、その一つの主面側には横
断面が上記ディスク状の被焼成物の外周面と相似な溝底
面を有する溝を備える一方、いま一つの主面側にはその
周縁部から上記−つの主面側に窪んで上記平板状のセラ
ミックの被焼成物が上記平板に平行に収容される平底状
の凹部を備えていることを特徴としている。(Means for Solving the Problems) Therefore, the present invention provides support for a disk-shaped ceramic object to be fired and a flat ceramic object whose thickness is relatively small compared to its area in a firing furnace. This ceramic firing jig is made of a ceramic flat plate, and one main surface thereof has a groove bottom surface whose cross section is similar to the outer peripheral surface of the disk-shaped object to be fired. On the other hand, the other main surface side is provided with a flat-bottomed recess that is recessed from the peripheral edge toward the two main surfaces and in which the flat ceramic object to be fired is accommodated parallel to the flat plate. It is characterized by
（作用）
ディスク状の被焼成物の焼成の際には、被焼成物は平板
の一つの主面側の溝にその長手方向に沿って立てて配列
される。また、平板状の被焼成物の焼成の際には、被焼
成物は平板のいま一つの主面側に横置きされる。(Function) When firing disk-shaped objects to be fired, the objects to be fired are arranged vertically in the groove on one main surface side of the flat plate. Further, when firing a flat plate-shaped object to be fired, the object to be fired is placed horizontally on the other main surface side of the flat plate.
（発明の効果）
本発明によれば、セラミック焼成用の治具がその一つの
主面の溝がディスク状の被焼成物の外周面とほぼ合致す
る溝面を有しているので、この溝にセラミックパウダを
敷いて被焼成物をたてて配列することにより、ディスク
状の各被焼成物は、その外周面が溝面から均等に力を受
け、自重による変形が防止されるとともに、治具と被焼
成物との化学的な反応も防止することができる。(Effects of the Invention) According to the present invention, the groove on one main surface of the ceramic firing jig has a groove surface that almost matches the outer peripheral surface of the disk-shaped object to be fired. By laying ceramic powder on the surface and arranging the objects to be fired vertically, each disk-shaped object to be fired receives force evenly from the groove surface on its outer circumferential surface, preventing deformation due to its own weight and improving its recovery. Chemical reactions between the ingredients and the object to be baked can also be prevented.
また、平板状の被焼成物は治具のいま一つの主面側に横
おきすることにより、従来と同様に、焼成することがで
き、一つの治具により、２種類以上のセラミックの被焼
成物を焼成することができ、治具の材料費およびその保
管のためのスペース等も節約される。In addition, a flat plate-shaped object to be fired can be fired in the same way as before by placing it horizontally on the other main surface side of the jig, and two or more types of ceramic objects can be fired with one jig. Things can be fired, and material costs for jigs and space for storing them are also saved.
（実施例） 以下、添付の図面を参照して本発明の詳細な説明する。(Example) Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
本発明に係るセラミック焼成用治具の一実施例の平面を
第１図に、またその■−■線に沿う断面を第２図に示す
。FIG. 1 shows a plan view of an embodiment of the ceramic firing jig according to the present invention, and FIG. 2 shows a cross section taken along line 1--2.
上記セラミック焼成用治具１１はほぼ四角形状を有する
平板状のもので、ハイアルミナ（ＨｉＡ ｌ。The ceramic firing jig 11 is a flat plate having a substantially rectangular shape, and is made of high alumina (HiAl).
０３）や炭化珪素（ＳｉＣ）系のセラミック材料からな
り、表面は酸化ジルコニウム（ＺｒＯｚ）もしくはアル
ミナ（ＡＩ２０ｓ）によりコーティングされる。03) or silicon carbide (SiC)-based ceramic material, and the surface is coated with zirconium oxide (ZrOz) or alumina (AI20s).
上記セラミック焼成用治具１１は、その一つの主面側に
、ディスク状のセラミックの被焼成物１２（第３図およ
び第４図参照）を支持するための溝１３が複数本、平行
に形成されている。これら溝１３の各々は、その横断面
が焼成するディスク状の被焼成物１２の外周面と相似な
溝底面を有する。The ceramic firing jig 11 has a plurality of parallel grooves 13 formed on one main surface thereof to support a disk-shaped ceramic firing object 12 (see FIGS. 3 and 4). has been done. Each of these grooves 13 has a bottom surface whose cross section is similar to the outer peripheral surface of the disk-shaped object 12 to be fired.
上記ディスク状の被焼成物１２はその外周面が上記溝底
面に対向して上記−つの主面に垂直に支持される。The disk-shaped object 12 to be fired is supported perpendicularly to the two main surfaces with its outer circumferential surface facing the bottom surface of the groove.
一方、上記セラミック焼成用治具１１のいま一つの主面
側には、その周縁部から上記−つの主面側に、数ｍｍ窪
む凹部１４を備える。この凹部１４内には、平板状のセ
ラミックの被焼成物１５（第５図参照）が上記セラミッ
ク焼成用治具１１に平行に収容される。On the other hand, the other main surface side of the ceramic firing jig 11 is provided with a recess 14 that is depressed several mm from the peripheral edge toward the second main surface side. A flat ceramic object to be fired 15 (see FIG. 5) is accommodated in the recess 14 in parallel with the ceramic firing jig 11.
このような構成を有するセラミック焼成用治具１１によ
り、ディスク状の被焼成物１２を焼成する際には、第３
図および第４図に示すように、平板の一つの主面側の谷
溝１３に、酸化ジルコニウム等のパウダ１６を敷き、そ
の上に被焼成物１２が溝にその溝幅方向に対して直角な
方向に沿って立てて配列される。これにより、ディスク
状の各被焼成物１２は、その外周面が溝面から均等に力
を受け、自重による変形が防止される。また、セラミッ
ク焼成用治具１１とセラミックの被焼成物１２との化学
的な反応も防止される。 一方、平板状の被焼成物１５
を焼成する際は、第５図に示すように、被焼成物１５を
治具１１のいま一つの主面側に横おきして積み重ねるこ
とにより、従来と同様に、焼成することができる。When firing the disk-shaped object to be fired 12 using the ceramic firing jig 11 having such a configuration, the third
As shown in the figure and FIG. 4, powder 16 such as zirconium oxide is spread in the valley groove 13 on one main surface side of the flat plate, and the object to be fired 12 is placed on top of the powder 16 in the groove at right angles to the width direction of the groove. They are arranged vertically along the same direction. As a result, the outer peripheral surface of each disk-shaped object to be fired 12 receives force evenly from the groove surface, and deformation due to its own weight is prevented. Further, a chemical reaction between the ceramic firing jig 11 and the ceramic fired object 12 is also prevented. On the other hand, a flat plate-shaped object to be fired 15
When firing, as shown in FIG. 5, the objects to be fired 15 are stacked horizontally on the other main surface side of the jig 11, and firing can be performed in the same manner as in the conventional method.
さらに、大型の被焼成物を焼成する場合は、第６図に示
すように、上記治具１１のいま一つの主面側の凹部１４
にセラミックのビーズ１８を敷き、その上に大型の被焼
成物１７を載置することにより焼成することできる。こ
の場合、凹部１４の土手部分１９によりビーズ１８が治
具１１の外にこぼれることを防止することができる。Furthermore, when firing a large object to be fired, as shown in FIG.
Firing can be performed by placing ceramic beads 18 on top of the ceramic beads 18 and placing the large object to be fired 17 thereon. In this case, the bank portion 19 of the recess 14 can prevent the beads 18 from spilling out of the jig 11.
本発明は、セラミックコンデンサのセラミック誘電体の
焼成に限らず、セラミック共振子のセラミック圧電基板
の焼成等にも適用することができる。The present invention is applicable not only to the firing of ceramic dielectrics of ceramic capacitors, but also to the firing of ceramic piezoelectric substrates of ceramic resonators.
第１図は本発明に係るセラミック焼成用治具の一実施例
の平面図、
第２図は第１図のセラミック焼成用治具の■−■線に沿
う断面図、
第３図、第４図、１５図および第６図は夫々第１図のセ
ラミック焼成用治具によるセラミックの被焼成物の焼成
の説明図
第７図は従来のセラミック焼成用治具の一例を示す斜視
図である。
１１・・・セラミック焼成用治具。
１２・・・ディスク状の被焼成物
１３・・・溝、１４・・・凹部、１５・・・平板状の被
焼成物。
１６・・・セラミックパウダ、１７・・・大型の被焼成
物。
菓２図
＊１ｒ１ｉ
■
第７図
２FIG. 1 is a plan view of an embodiment of the ceramic firing jig according to the present invention, FIG. 2 is a cross-sectional view of the ceramic firing jig shown in FIG. 1 along the line ■-■, FIGS. 15 and 6 are respectively explanatory diagrams of firing of a ceramic object to be fired using the ceramic firing jig shown in FIG. 1. FIG. 7 is a perspective view showing an example of a conventional ceramic firing jig. 11...Jig for ceramic firing. 12...Disc-shaped object to be fired 13...Groove, 14...Recessed portion, 15...Flat-shaped object to be fired. 16...Ceramic powder, 17...Large object to be fired. Fig. 2 *1r1i ■ Fig. 7 2
Claims (1)
比較して厚みが比較的小さい平板状のセラミックの被焼
成物を焼成炉内にて支持して焼成するためのセラミック
焼成用治具であって、セラミック製の平板からなり、そ
の一つの主面側には横断面が上記ディスク状の被焼成物
の外周面と相似な溝底面を有する溝を備える一方、いま
一つの主面側にはその周縁部から上記一つの主面側に窪
んで上記平板状のセラミックの被焼成物が上記平板に平
行に収容される平底状の凹部を備えていることを特徴と
するセラミック焼成用治具。(1) A ceramic firing jig for supporting and firing a disk-shaped ceramic object to be fired and a flat ceramic object whose thickness is relatively small compared to its area in a firing furnace. It is made of a ceramic flat plate, and one main surface thereof is provided with a groove having a groove bottom surface whose cross section is similar to the outer peripheral surface of the disk-shaped object to be fired, while the other main surface side is provided with a groove having a groove bottom surface similar to the outer peripheral surface of the disk-shaped object to be fired. A ceramic firing jig comprising a flat-bottomed recess that is recessed from the peripheral edge toward the one main surface and in which the flat ceramic object to be fired is housed in parallel to the flat plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27663289A JPH03137492A (en) | 1989-10-24 | 1989-10-24 | Ceramic baking jig |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27663289A JPH03137492A (en) | 1989-10-24 | 1989-10-24 | Ceramic baking jig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03137492A true JPH03137492A (en) | 1991-06-12 |
Family
ID=17572153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27663289A Pending JPH03137492A (en) | 1989-10-24 | 1989-10-24 | Ceramic baking jig |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03137492A (en) |
-
1989
- 1989-10-24 JP JP27663289A patent/JPH03137492A/en active Pending
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