JPS6395164A - Manufacture of ceramic sheet - Google Patents
Manufacture of ceramic sheetInfo
- Publication number
- JPS6395164A JPS6395164A JP61242591A JP24259186A JPS6395164A JP S6395164 A JPS6395164 A JP S6395164A JP 61242591 A JP61242591 A JP 61242591A JP 24259186 A JP24259186 A JP 24259186A JP S6395164 A JPS6395164 A JP S6395164A
- Authority
- JP
- Japan
- Prior art keywords
- green sheet
- organic binder
- ceramic
- green
- powder
- 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 description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 239000011230 binding agent Substances 0.000 claims description 18
- 239000000843 powder Substances 0.000 claims description 13
- 239000002002 slurry Substances 0.000 claims description 8
- 239000003960 organic solvent Substances 0.000 claims description 7
- 229910010293 ceramic material Inorganic materials 0.000 claims description 6
- 238000010304 firing Methods 0.000 claims description 4
- 238000007788 roughening Methods 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 2
- 238000010030 laminating Methods 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 9
- 230000004927 fusion Effects 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000007606 doctor blade method Methods 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 229920002678 cellulose Polymers 0.000 description 1
- 239000001913 cellulose Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000010410 dusting Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000005802 health problem Effects 0.000 description 1
- 229910052451 lead zirconate titanate Inorganic materials 0.000 description 1
- HFGPZNIAWCZYJU-UHFFFAOYSA-N lead zirconate titanate Chemical compound [O-2].[O-2].[O-2].[O-2].[O-2].[Ti+4].[Zr+4].[Pb+2] HFGPZNIAWCZYJU-UHFFFAOYSA-N 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
Landscapes
- Insulating Bodies (AREA)
- Compositions Of Oxide Ceramics (AREA)
- Producing Shaped Articles From Materials (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】 （産業上の利用分野） 本発明はセラミック板の製造方法に関する。[Detailed description of the invention] (Industrial application field) The present invention relates to a method of manufacturing a ceramic plate.
（従来の技術）
一般に、セラミック板を製造する場合、セラミック粉末
に有機バインダ及び水等を加えてスラリーを調製し、こ
れをドクターブレード法などでシート状に成形し、乾燥
させた後、積層して焼成する方法が採用されている。こ
の場合、グリーンシートをそのまま重ねて焼成すると、
上下のセラミック板の融着が生じるという問題がある。(Prior art) Generally, when manufacturing a ceramic plate, a slurry is prepared by adding an organic binder, water, etc. to ceramic powder, and this is formed into a sheet shape using a doctor blade method, etc., dried, and then laminated. The method of firing is used. In this case, if you stack the green sheets as they are and fire them,
There is a problem in that the upper and lower ceramic plates are fused together.
この現象は、ドクターブレード法などキャリアフィルム
を用いて成形されたグリーンシートのように表面の平滑
性が高いほど顕著である。このため、通常、高温焼成時
にセラミック材料と反応し難い無機粉末を敷き粉として
用い、これをグリーンシート間に介在させて焼成するこ
とが行なわれている。This phenomenon is more pronounced when the surface smoothness is higher, such as a green sheet formed using a carrier film such as a doctor blade method. For this reason, it is common practice to use an inorganic powder that does not easily react with the ceramic material during high-temperature firing as a dusting powder, and to interpose it between green sheets and fire the ceramic material.
（発明が解決しようとする問題点）
しかしながら、グリーンシート間に敷き粉を介在させて
焼成すると、敷き粉のムラによるソリやヘコミなどの変
形が多く、また粉末の飛散により作業環境の汚染を生じ
易いという健康上の問題があった。(Problems to be Solved by the Invention) However, when baking with powder interposed between the green sheets, there are many deformations such as warpage and dents due to unevenness of the powder, and the scattering of powder contaminates the working environment. I had some health problems.
（問題点を解決するための手段）
本発明は、この問題を解決する手段として、セラミック
材料粉末と有機バインダとを含有してなるスラリーでグ
リーンシートを成形し、乾燥させた後、該グリーンシー
トの少なくとも片側表面の有機バインダを有機溶剤で溶
解除去してグリーンシートの表面を粗面化し、グリーン
シートを所定寸法に加工した後、積層して焼成するよう
にしたものである。(Means for Solving the Problem) The present invention, as a means to solve this problem, forms a green sheet with a slurry containing ceramic material powder and an organic binder, and after drying the green sheet, The surface of the green sheet is roughened by dissolving and removing the organic binder on at least one surface of the green sheet with an organic solvent, and after processing the green sheet to a predetermined size, the green sheet is laminated and fired.
グリーンシートの表面の有機バインダを有機溶剤で溶解
除去する手段としては、有機溶剤を浸み込ませた布でゆ
っくりと拭き取る方法、有機溶剤を含浸させた多孔質ロ
ーラで有機溶剤をグリーンシート表面に塗布し、その後
を乾燥させた多孔質ロールで拭き取る方法など任意の方
法を採用できる。Methods for dissolving and removing the organic binder on the surface of the green sheet with an organic solvent include wiping it slowly with a cloth impregnated with an organic solvent, and applying the organic solvent to the surface of the green sheet using a porous roller impregnated with an organic solvent. Any method can be used, such as applying the coating and wiping it off with a dry porous roll.
なお、有機溶剤としては、スラリーの調製に使用した有
機バインダを溶解する溶剤であれば任意のものをできる
が、有機バインダがアクリル系、セルロース系、酢酸ビ
ニル系の場合、一般的なトルエン等を使用すれば良い。Note that any organic solvent can be used as long as it dissolves the organic binder used to prepare the slurry, but if the organic binder is acrylic, cellulose, or vinyl acetate, general toluene etc. can be used. Just use it.
また、スラリーは、従来のものと同様、分散剤、界面活
性剤、消泡剤などを含有していても良い。Further, the slurry may contain a dispersant, a surfactant, an antifoaming agent, etc., as in conventional slurries.
（作用）
本発明に係るセラミック板の製造方法は、セラミック材
料粉末と有機バインダとを含有してなるセラミックグリ
ーンシートの焼成前に、グリーンシートの少なくとも片
側表面を前記有機バインダを溶解する適当な有機溶媒で
湿潤させると、グリーンシート表面の有機バインダが溶
解する。この溶解した有機バインダを拭き取ると、有機
バインダまたは有機バインダと共にセラミック材料粉末
が除去されグリーンシート表面が均一に粗面化される。(Function) In the method for manufacturing a ceramic plate according to the present invention, before firing a ceramic green sheet containing a ceramic material powder and an organic binder, at least one surface of the green sheet is coated with a suitable organic material that dissolves the organic binder. When wetted with a solvent, the organic binder on the surface of the green sheet dissolves. When this dissolved organic binder is wiped off, the organic binder or the ceramic material powder is removed together with the organic binder, and the green sheet surface is uniformly roughened.
このため、グリーンシートをそのまま、あるいは所定寸
法に切断した後、重ねるとグリーンシート同士がそれら
の表面の微細な突起で接触するため、グリーンシート間
の接触面積が著しく減少し、焼成してもセラミック板に
融着や変形を生じさせることがない。For this reason, when the green sheets are stacked as is or after being cut to a predetermined size and then stacked, the green sheets come into contact with each other through the minute protrusions on their surfaces, which significantly reduces the contact area between the green sheets, and even when fired, the ceramic No fusion or deformation of the board occurs.
（実施例１）
チタン酸ジルコン酸鉛系磁器組成物の原料粉末混合物に
所定量の酢酸ビニル系バインダ及び水を加え、十分に混
練してスラリーを調製した。このスラリーを用いてドク
ターブレード法によりグリーンシートを成形した後、乾
燥させた。(Example 1) A predetermined amount of a vinyl acetate binder and water were added to a raw material powder mixture of a lead zirconate titanate ceramic composition and sufficiently kneaded to prepare a slurry. A green sheet was formed using this slurry by a doctor blade method and then dried.
次いで、トルエンを含浸させた布で乾燥させたグリーン
シートの両表面をゆっくりと均一に拭き取り、グリーン
シートの表面から有機バインダ及び原料塊を溶解除去し
、粗面化した。このようにして粗面化処理したグリーン
シートを直径３０ｍｍの円板状に打ち抜き、この円板を
１０枚重ねて空気中１１８０℃で６時間焼成した。円板
間の融着率を調べたところ、０％であった。Next, both surfaces of the dried green sheet were slowly and uniformly wiped with a cloth impregnated with toluene to dissolve and remove the organic binder and raw material lumps from the surface of the green sheet, thereby roughening the surface. The green sheet roughened in this way was punched out into a disk shape with a diameter of 30 mm, and 10 of these disks were stacked and fired in air at 1180° C. for 6 hours. When the fusion rate between the disks was examined, it was 0%.
（実施例２）
実施例！で得た乾燥グリーンシートの片側表面をトルエ
ンを含浸させた布でゆっくりと均一に拭き取り、グリー
ンシートの片側表面から有機バインダ及び原料塊を溶解
除去し、粗面化した後、直径３０ｍｍの円板状に打ち抜
き、この円板を粗面が下になるように１０枚重ねて実施
例１と同条件下で焼成した。円板間の融着率は９４％で
あった。(Example 2) Example! The surface of one side of the dried green sheet obtained in step 1 was wiped slowly and uniformly with a cloth impregnated with toluene to dissolve and remove the organic binder and raw material lumps from the surface of one side of the green sheet, and after roughening the surface, a disk with a diameter of 30 mm was prepared. A shape was punched out, and 10 of the disks were stacked with the rough side facing down and fired under the same conditions as in Example 1. The fusion rate between the discs was 94%.
（比較例）
実施例１で得た乾燥グリーンシートを直径３０ｍｍの円
板状に打ち抜き、この円板をそのまま１０枚重ねて実施
例１と同条件下で６時間焼成した。(Comparative Example) The dried green sheet obtained in Example 1 was punched out into a disc shape with a diameter of 30 mm, and 10 of these discs were stacked as they were and fired under the same conditions as in Example 1 for 6 hours.
円板間の融着率は１００％であった。The fusion rate between the discs was 100%.
（発明の効果）
以上の説明から明らかなように、本発明によれば、簡単
な加工を施すことにより、セラミック板を重ねて焼成し
ても融着を殆”ど生じさせることが無く、また、簡単な
工程でセラミック板を歩どまり良く製造できるのでコス
トの低減を図ることができる。しかも、敷き粉を使用せ
ずに焼成できるので、敷き粉のムラによる反りやへこみ
を生じることが無く、粉塵による環境汚染を生じること
がないなど、優れた効果が得られる。(Effects of the Invention) As is clear from the above description, according to the present invention, by performing simple processing, almost no fusion occurs even when ceramic plates are stacked and fired, and Ceramic plates can be manufactured with a simple process at a high yield, reducing costs.Furthermore, since it can be fired without the use of bedding powder, there will be no warping or dents caused by uneven bedding powder. Excellent effects such as no environmental pollution caused by dust can be obtained.
Claims (1)
なるスラリーでグリーンシートを成形し、乾燥させた後
、該グリーンシートの少なくとも片側表面の有機バイン
ダを有機溶剤で溶解除去してグリーンシートの表面を粗
面化し、グリーンシートを所定寸法に加工した後、積層
して焼成することを特徴とするセラミック板の製造方法
。(1) After forming a green sheet with a slurry containing ceramic material powder and an organic binder and drying it, the organic binder on at least one surface of the green sheet is dissolved and removed using an organic solvent to remove the organic binder from the surface of the green sheet. A method for producing a ceramic plate, which comprises roughening the surface of the green sheet, processing the green sheets to a predetermined size, and then laminating and firing the green sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242591A JPS6395164A (en) | 1986-10-13 | 1986-10-13 | Manufacture of ceramic sheet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61242591A JPS6395164A (en) | 1986-10-13 | 1986-10-13 | Manufacture of ceramic sheet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6395164A true JPS6395164A (en) | 1988-04-26 |
Family
ID=17091327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61242591A Pending JPS6395164A (en) | 1986-10-13 | 1986-10-13 | Manufacture of ceramic sheet |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6395164A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019064220A (en) * | 2017-10-04 | 2019-04-25 | 株式会社日本触媒 | Method for producing ceramic sheet |
-
1986
- 1986-10-13 JP JP61242591A patent/JPS6395164A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019064220A (en) * | 2017-10-04 | 2019-04-25 | 株式会社日本触媒 | Method for producing ceramic sheet |
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