JPH0818309B2 - Green sheet molding method - Google Patents
Green sheet molding methodInfo
- Publication number
- JPH0818309B2 JPH0818309B2 JP2077105A JP7710590A JPH0818309B2 JP H0818309 B2 JPH0818309 B2 JP H0818309B2 JP 2077105 A JP2077105 A JP 2077105A JP 7710590 A JP7710590 A JP 7710590A JP H0818309 B2 JPH0818309 B2 JP H0818309B2
- Authority
- JP
- Japan
- Prior art keywords
- green sheet
- film
- molding
- spacer
- molding method
- 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.)
- Expired - Fee Related
Links
Landscapes
- Producing Shaped Articles From Materials (AREA)
Description
【発明の詳細な説明】 〔概要〕 グリーンシート成形法に係り、特にドクターブレード
法によりフィルム上にグリーンシートを成形する際に発
生するフィルムシワを防止する方法に関し、 本発明はグリーンシート成形時の搬送用フィルムによ
るシワの発生を防止するグリーンシート成形法を提供す
ることを目的とし、 容器に収納されたスラリーを、搬送用薄膜上に一定の
厚さに成形して被着する成形法において、 前記成形直後の前記薄膜下にスペーサを設けて該成形
を行うことを構成とする。DETAILED DESCRIPTION OF THE INVENTION [Outline] The present invention relates to a green sheet forming method, and more particularly to a method for preventing film wrinkles that occur when a green sheet is formed on a film by a doctor blade method. With the aim of providing a green sheet molding method for preventing the occurrence of wrinkles due to a transport film, in a molding method in which the slurry contained in a container is molded and deposited on a transport thin film to a constant thickness, A spacer is provided below the thin film immediately after the molding, and the molding is performed.
本発明はグリーンシート成形法に係り、特にドクター
ブレード法によりフィルム上にグリーンシートを成形す
る際に発生するフィルムシワを防止する方法に関する。The present invention relates to a green sheet forming method, and more particularly to a method for preventing film wrinkles that occur when forming a green sheet on a film by a doctor blade method.
ガラスセラミック等から多層セラミック基板を製造す
る前段階で例えばアルミナとガラスをボールミルで整粒
し、混練した後、脱泡粘調工程を経てグリーンシートに
成形する。Before manufacturing a multilayer ceramic substrate from glass ceramic or the like, for example, alumina and glass are sized by a ball mill, kneaded, and then subjected to a defoaming viscosity adjusting step to form a green sheet.
上記グリーンシート成形工程は第３図に示す方法で行
われる。The green sheet forming step is performed by the method shown in FIG.
すなわち、その方法はダム１内に収容されたスラリー
２を巻出しロール５、補助ロール６、バックロール７を
介して供給されるフィルム４上に被着するようにドクタ
ーブレード３を介して流すことによって行われる。巻出
しロール５からのフィルムの供給速度がそのままグリー
ンシート成形速度になるが通常この速度は17mm/秒程度
である。That is, the method is such that the slurry 2 contained in the dam 1 is caused to flow through the doctor blade 3 so as to be deposited on the film 4 supplied through the unwinding roll 5, the auxiliary roll 6 and the back roll 7. Done by The film feeding speed from the unwinding roll 5 directly becomes the green sheet forming speed, but this speed is usually about 17 mm / sec.
グリーンシート８は支持台９上を搬送し乾燥炉を通し
て熟性される。The green sheet 8 is conveyed on a support 9 and is aged through a drying oven.
上記従来のグリーンシート成形方法では、成形時にフ
ィルム長さ方向にかかる張力によって生じた第４図に示
した縦ジワ（フィルムシワ）11がそのままグリーンシー
ト面に移り欠陥となって残存し外観品質の劣化を招い
た。このシワ発生は第３図にＡで示した支持台端部面で
発生することがわかった。In the above-mentioned conventional green sheet forming method, the vertical wrinkles (film wrinkles) 11 shown in FIG. 4 caused by the tension applied in the length direction of the film at the time of forming move to the surface of the green sheet as they are and remain as a defect, resulting in the appearance quality. Deteriorated. It was found that this wrinkle occurred on the end surface of the support base shown by A in FIG.
本発明はグリーンシート成形時の搬送用フィルムによ
るシワの発生を防止するグリーンシート成形時のフィル
ムシワ防止方法を提供することを目的とする。It is an object of the present invention to provide a film wrinkle prevention method for forming a green sheet, which prevents wrinkles from being formed by the transport film during the formation of the green sheet.
上記課題は本発明によれば、容器に収納されたスラリ
ーを、搬送用薄膜上に一定の厚さに成形して被着する成
形法において、前記成形直後の前記薄膜下にスペーサを
設けて該成形を行うことを特徴とするグリーンシート成
形法によって解決される。According to the present invention, according to the present invention, in a molding method in which a slurry stored in a container is molded and deposited on a transport thin film to have a constant thickness, a spacer is provided below the thin film immediately after the molding. It is solved by a green sheet forming method characterized by performing forming.
本発明に係るスペーサにより成形後得られたグリーン
シート下の薄膜にかかる張力を縦シワの発生を防止する
ように配設できる。The tension applied to the thin film under the green sheet obtained after molding by the spacer according to the present invention can be arranged so as to prevent the generation of vertical wrinkles.
以下本発明の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described below with reference to the drawings.
第１図は本発明の一実施例を示す模式図である。 FIG. 1 is a schematic view showing an embodiment of the present invention.
従来例を示した第３図と同一のものは第１図でも同一
番号で示す。The same parts as those in FIG. 3 showing the conventional example are indicated by the same numbers in FIG.
まずアルミナと石英及びホウケイ酸ガラスからなるガ
ラスセラミックスのスラリー２をダム１内に収納し、ド
クターブレード３により約285μｍの一定の厚さに成形
しフィルム８上に被着した状態で搬送される。成形位置
から約50mmの位置にある搬送フィルム支持台端部に幅が
10〜50mm、長さが約600mm、高さが１〜2mm、の平板状の
スペーサ10（第２図）を設けて特にバックロール７とス
ペーサ10内の張力を増大し、表面のゆるみを取り除い
た。First, a slurry 2 of glass ceramics composed of alumina, quartz, and borosilicate glass is housed in a dam 1, shaped into a constant thickness of about 285 μm by a doctor blade 3, and conveyed while being adhered onto a film 8. The width is about 50 mm from the molding position at the end of the transport film support base.
A flat spacer 10 (Fig. 2) having a length of 10 to 50 mm, a length of about 600 mm and a height of 1 to 2 mm is provided to increase the tension particularly in the back roll 7 and the spacer 10 to remove the looseness of the surface. It was
本発明で用いられるスペーサは厚さが１〜2mmの平板
状であるのが好ましくドクターブレード法による一定厚
さへの成形位置から10〜100mm離れた位置に配置される
のが好ましい。The spacer used in the present invention is preferably in the form of a flat plate having a thickness of 1 to 2 mm, and is preferably arranged at a position 10 to 100 mm away from the position of forming a uniform thickness by the doctor blade method.
スペーサの材質はステンレス、チタン等が好ましい。 The spacer material is preferably stainless steel, titanium or the like.
得られたグリーンシートにはフィルム剥離後、従来ジ
ワの発生は見当らなかった。No wrinkles were conventionally found on the obtained green sheet after the film was peeled off.
以上説明した様に、本発明によればスペーサにより薄
膜に生じる長さ方向の縦ジワを防止できる張力がかけら
れるのでグリーンシートのフィルムシワを防止すること
ができる。As described above, according to the present invention, the spacer can apply the tension capable of preventing the vertical wrinkles in the length direction generated in the thin film, so that the film wrinkles of the green sheet can be prevented.
第１図は本発明の一実施例を示す模式図であり、 第２図は本発明に係るスペーサを示す斜視図であり、 第３図は従来の成形技術を説明するための模式図であ
り、 第４図はグリーンシートに発生した縦ジワを示す斜視図
である。 １……容器、２……スラリー、３……ドクターブレー
ド、４……フィルム、５……巻出しロール、６……補助
ロール、７……バックロール、８……グリーンシート、
９……支持台、10……スペーサ、11……縦ジワ。FIG. 1 is a schematic view showing an embodiment of the present invention, FIG. 2 is a perspective view showing a spacer according to the present invention, and FIG. 3 is a schematic view for explaining a conventional molding technique. FIG. 4 is a perspective view showing vertical wrinkles generated on the green sheet. 1 ... Container, 2 ... Slurry, 3 ... Doctor blade, 4 ... Film, 5 ... Unwind roll, 6 ... Auxiliary roll, 7 ... Back roll, 8 ... Green sheet,
9 ... Support stand, 10 ... Spacer, 11 ... Vertical wrinkle.
Claims (1)
上に一定の厚さに成形して被着する成形法において、 前記成形直後の前記薄膜下にスペーサを設けて該成形を
行うことを特徴とするグリーンシート成形法。1. A molding method in which a slurry stored in a container is formed on a thin film for transportation and adhered to the thin film, and a spacer is provided below the thin film immediately after the molding, to perform the molding. A green sheet forming method characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2077105A JPH0818309B2 (en) | 1990-03-28 | 1990-03-28 | Green sheet molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2077105A JPH0818309B2 (en) | 1990-03-28 | 1990-03-28 | Green sheet molding method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03277504A JPH03277504A (en) | 1991-12-09 |
| JPH0818309B2 true JPH0818309B2 (en) | 1996-02-28 |
Family
ID=13624503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2077105A Expired - Fee Related JPH0818309B2 (en) | 1990-03-28 | 1990-03-28 | Green sheet molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0818309B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5331034B2 (en) * | 2010-03-05 | 2013-10-30 | 日本特殊陶業株式会社 | Green sheet manufacturing apparatus and manufacturing method |
-
1990
- 1990-03-28 JP JP2077105A patent/JPH0818309B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03277504A (en) | 1991-12-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |