JPH01212262A - Method for molding powder - Google Patents
Method for molding powderInfo
- Publication number
- JPH01212262A JPH01212262A JP63035870A JP3587088A JPH01212262A JP H01212262 A JPH01212262 A JP H01212262A JP 63035870 A JP63035870 A JP 63035870A JP 3587088 A JP3587088 A JP 3587088A JP H01212262 A JPH01212262 A JP H01212262A
- Authority
- JP
- Japan
- Prior art keywords
- ceramic
- green sheet
- powder
- sheet
- dimensions
- 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
- 239000000843 powder Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims description 22
- 238000000465 moulding Methods 0.000 title 1
- 239000000919 ceramic Substances 0.000 claims abstract description 27
- 239000011230 binding agent Substances 0.000 claims abstract description 21
- 239000002002 slurry Substances 0.000 claims abstract description 12
- 239000002904 solvent Substances 0.000 claims abstract description 7
- 239000000654 additive Substances 0.000 claims abstract description 4
- 238000004898 kneading Methods 0.000 claims abstract description 4
- 230000032683 aging Effects 0.000 abstract description 9
- 238000007796 conventional method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
Landscapes
- Compositions Of Oxide Ceramics (AREA)
Abstract
Description
【発明の詳細な説明】
〔概 要〕
本発明はセラミックス等の粉体をシート状に形成する際
に適用される形成方法に関し、特にグリーンシートが安
定するまでの日数を少なくした粉体の形成方法の提供を
口約とし、先ず、有機バインダ等の添加物を予め溶剤に
溶解させてバインダ溶解液を作成し、その後、熟成させ
た該バインダ溶解液と前記粉体とを混練してセラミック
スラリ−を形成するようにしたことを特徴とする。[Detailed Description of the Invention] [Summary] The present invention relates to a forming method applied when forming a powder such as ceramics into a sheet shape, and in particular, a method for forming a powder that reduces the number of days until a green sheet becomes stable. With the promise of providing a method, first, an additive such as an organic binder is dissolved in a solvent in advance to create a binder solution, and then the aged binder solution and the powder are kneaded to form a ceramic slurry. - is formed.
本発明はセラミックス等の粉体を用いてプリント基板等
のシート状部材を製作する際に適用される粉体の形成方
法に関する。The present invention relates to a powder forming method that is applied when manufacturing a sheet-like member such as a printed circuit board using powder such as ceramics.
第３図は従来の粉体の形成方法を示すフローチャートで
ある。FIG. 3 is a flowchart showing a conventional powder forming method.
第３図に示すように、従来の粉体の形成工程は、■、セ
ラミック粉体１とバインダ３と溶剤５とを混練してセラ
ミックスラリ−１０を作る混練工程。As shown in FIG. 3, the conventional powder forming process is (1) a kneading process in which ceramic powder 1, binder 3, and solvent 5 are kneaded to form ceramic slurry 10;
■、セラミックスラリー１Ｏを板状に展伸してグリーン
シート１５化する形成工程。(2) A forming process in which ceramic slurry 10 is expanded into a plate shape to form green sheet 15.
■、グリーンシー目５の寸法を安定化させるエージング
工程。■Aging process to stabilize the dimensions of green sea eyes 5.
■、グリーンシート１５を所定の寸法に切断してセラミ
ックシート２０化する切断加工工程。(2) A cutting process in which the green sheet 15 is cut into predetermined dimensions to form the ceramic sheet 20.
という概略４つの工程で構成されていた。It consisted of roughly four steps.
しかしながら、上記従来の方法で粉体の形成を行った場
合は、グリーンシート１５の寸法を安定化させるエージ
ング工程（第３工程）の所要日程が第４図に示すように
２０日〜２１日と非常に長いため、その間に異物が付着
したりする上、このエージング工程がネックとなって全
体的な工程が停滞するという問題点があった。なお、第
４図は従来方式におけるグリーンシートの経日変化を示
す図であって、縦軸は寸法収縮率（単位％）を、そして
横軸は放置日数（単位臼）をそれぞれ示す。However, when the powder is formed using the conventional method described above, the required schedule for the aging step (third step) to stabilize the dimensions of the green sheet 15 is 20 to 21 days, as shown in FIG. Since it is very long, there are problems in that foreign matter may adhere to it, and the aging process becomes a bottleneck, causing the overall process to stagnate. In addition, FIG. 4 is a diagram showing the aging of the green sheet in the conventional method, in which the vertical axis shows the dimensional shrinkage rate (unit: %), and the horizontal axis shows the number of days left (unit: mortar).
本発明は上記の問題点を解決することを課題としてなさ
れたもので、寸法収縮率が安定化するまでの時間を短縮
させた点にその特徴がある。The present invention was made to solve the above-mentioned problems, and is characterized by shortening the time it takes for the dimensional shrinkage rate to stabilize.
本発明による粉体の形成方法は、有機バインダ等の添加
物を予め溶剤に溶解させてバインダ溶解液を作成し、そ
の後、熟成させた該バインダ溶解液とセラミック粉体と
を混練してセラミックスラリ−を形成する方式になって
いる。The powder forming method according to the present invention involves first dissolving additives such as an organic binder in a solvent to create a binder solution, and then kneading the aged binder solution and ceramic powder to form a ceramic slurry. The method is to form -.
このように、予め′作成されたバインダ溶解液とセラミ
ック粉体とを混練してセラミックスラリ−を形成する本
発明方式は、グリーンシートの寸法を安定化させる時間
を大幅に短縮し得る。As described above, the method of the present invention in which a pre-prepared binder solution and ceramic powder are kneaded to form a ceramic slurry can significantly shorten the time required to stabilize the dimensions of a green sheet.
以下実施例図に基づいて本発明の詳細な説明する。 Hereinafter, the present invention will be described in detail based on embodiment figures.
第１図は本発明の一実施例を示すフローチャートである
が、前記第３図、第４図と同一部分には同一符号を付し
ている。FIG. 1 is a flowchart showing one embodiment of the present invention, and the same parts as in FIGS. 3 and 4 are given the same reference numerals.
第１図に示すように本発明による粉体の形成方法は、バ
インダ３と溶剤５とを混合して溶解する溶解工程（第１
工程）、およびその熟成工程（第２工程）を経て生成さ
れたバインダ溶解液７と、別途に用意したセラミック粉
体１とを第３工程で初めて混練してセラミックスラリ−
１０を製造するようにした点にその特徴がある。なお、
以後の第４工程〜第６エ程は、前記第３図に示した従来
の第２工程（セラミックスラリ−１０を展伸してこれを
グリーンシート化する形成工程）、および第３工程（グ
リーンシート１５の寸法を安定化させるエージング工程
）、第４工程（グリーンシート１５を所定の寸法に切断
してセラミックシート２０を作るシート切断工程）と全
く同一である。As shown in FIG. 1, the powder forming method according to the present invention includes a dissolving step (first step) of mixing and dissolving a binder 3 and a solvent 5.
The binder solution 7 produced through the aging process (second process) and the separately prepared ceramic powder 1 are kneaded for the first time in the third process to form a ceramic slurry.
Its unique feature lies in the fact that 10 units were manufactured. In addition,
The subsequent fourth to sixth steps are the conventional second step (forming step of stretching the ceramic slurry 10 and forming it into a green sheet) and the third step (green sheet forming step) shown in FIG. The aging process for stabilizing the dimensions of the sheet 15) is exactly the same as the fourth process (the sheet cutting process for cutting the green sheet 15 into predetermined dimensions to produce the ceramic sheet 20).
このような方法、即ち予めバインダ溶解液７を作成して
おき、そのバインダ溶解液７とセラミック粉体１とを混
練してセラミックスラリ−１０を作るという本発明方式
で製造されたグリーンシート１５は、第２図のグリーン
シートの経日変化比較図に示すように、寸法収縮率（縦
軸）が安定化するまでの時間、つまり横軸で示す日数が
、従来の方式に比して著しく短縮される（従来は概ね３
週間を要したものが、約１週間に短縮される）。なお図
中、実線で示した収縮率変化曲線は本発明方式を適用し
た場合であり、点線で示した収縮率変化曲線は従来方式
の場合である。The green sheet 15 manufactured by this method, that is, the method of the present invention in which the binder solution 7 is prepared in advance and the binder solution 7 and the ceramic powder 1 are kneaded to make the ceramic slurry 10, is As shown in the chart comparing the aging of green sheets in Figure 2, the time it takes for the dimensional shrinkage rate (vertical axis) to stabilize, that is, the number of days shown on the horizontal axis, is significantly shorter than with the conventional method. (Previously about 3
What used to take weeks will now be shortened to about one week.) In the figure, the shrinkage rate change curve shown by a solid line is for the case where the method of the present invention is applied, and the shrinkage rate change curve shown by a dotted line is for the case of the conventional method.
以上の説明から明らかなように本発明によればグリーン
シートの寸法が安定するまでの日数が、従来に比して著
しく短縮されるため、グリーンシートの製造工程が合理
化され、且つ品質的にも安定するといった優れた工業的
効果がある。As is clear from the above explanation, according to the present invention, the number of days until the dimensions of the green sheet become stable is significantly shortened compared to the conventional method, so the manufacturing process of the green sheet is streamlined, and the quality is also improved. It has excellent industrial effects such as stability.
第１図は本発明の一実施例を示すフローチャート、
第２図はグリーンシートの経日変化日数の比較図、
第３図は従来の粉体の形成工程を示すフローチャート、
第４図は従来方式におけるグリーンシートの経口変化を
示す図である。
図中、１はセラミック粉体、
３はバインダ、
５は溶剤、
７はバインダ溶解液、
ｌＯはセラミックスラリ−１
１５はグリーンシート、
２０はセラミックシート、
をそれぞれ示す。
本発明４−＊掟例図
第１図
第２図Fig. 1 is a flowchart showing an embodiment of the present invention, Fig. 2 is a comparison diagram of the number of days of aging of green sheets, Fig. 3 is a flowchart showing a conventional powder forming process, and Fig. 4 is a conventional method. It is a figure showing the oral change of the green sheet in . In the figure, 1 is a ceramic powder, 3 is a binder, 5 is a solvent, 7 is a binder solution, IO is a ceramic slurry 1, 15 is a green sheet, and 20 is a ceramic sheet. Present invention 4-*Example diagram Figure 1 Figure 2
Claims (1)
に溶解させてバインダ溶解液（７）を作成し、その後、
熟成させた該バインダ溶解液（７）とセラミック粉体（
１）とを混練してセラミックスラリー（１０）を形成す
るようにしたことを特徴とする粉体の形成方法。First, additives (3) such as organic binders are mixed with solvent (5) in advance.
to create a binder solution (7), and then
The aged binder solution (7) and ceramic powder (
1) A method for forming a powder, comprising: kneading and forming a ceramic slurry (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63035870A JPH01212262A (en) | 1988-02-17 | 1988-02-17 | Method for molding powder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63035870A JPH01212262A (en) | 1988-02-17 | 1988-02-17 | Method for molding powder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01212262A true JPH01212262A (en) | 1989-08-25 |
Family
ID=12454028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63035870A Pending JPH01212262A (en) | 1988-02-17 | 1988-02-17 | Method for molding powder |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01212262A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010064602A1 (en) | 2008-12-02 | 2010-06-10 | パナソニック電工株式会社 | Method for manufacturing circuit board, and circuit board obtained using the manufacturing method |
| WO2010087336A1 (en) | 2009-01-27 | 2010-08-05 | パナソニック電工株式会社 | Method of mounting semiconductor chips, semiconductor device obtained using the method, method of connecting semiconductor chips, and three-dimensional structure, on the surface of which wiring is provided and fabrication method thereof |
-
1988
- 1988-02-17 JP JP63035870A patent/JPH01212262A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010064602A1 (en) | 2008-12-02 | 2010-06-10 | パナソニック電工株式会社 | Method for manufacturing circuit board, and circuit board obtained using the manufacturing method |
| WO2010087336A1 (en) | 2009-01-27 | 2010-08-05 | パナソニック電工株式会社 | Method of mounting semiconductor chips, semiconductor device obtained using the method, method of connecting semiconductor chips, and three-dimensional structure, on the surface of which wiring is provided and fabrication method thereof |
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