JPH03107402A - Manufacture of ni powder dry type sheet - Google Patents
Manufacture of ni powder dry type sheetInfo
- Publication number
- JPH03107402A JPH03107402A JP1247364A JP24736489A JPH03107402A JP H03107402 A JPH03107402 A JP H03107402A JP 1247364 A JP1247364 A JP 1247364A JP 24736489 A JP24736489 A JP 24736489A JP H03107402 A JPH03107402 A JP H03107402A
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sheet
- resistant plate
- heat resistant
- thickness
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/30—Hydrogen technology
- Y02E60/50—Fuel cells
Landscapes
- Inert Electrodes (AREA)
- Powder Metallurgy (AREA)
Abstract
Description
【発明の詳細な説明】
〔発明の目的〕
（産業上の利用分野）
本発明は燃料電池電極用のＮｉ粉乾式シートの製造方法
に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a method for manufacturing a Ni powder dry sheet for fuel cell electrodes.
（従来の技術）
従来燃料電池電極の製造方法は、第３図に示すようなＮ
ｉ粉にバインダを混ぜた液状のスラリ（１８）としてド
クターブレード（１９）にてシート（９）を成形するド
クターブレード法が一般であるが、もともと電極として
は不要なバインダを混ぜて成形し、その後、バインダを
除去するもので、条件によっては、そのバインダが電極
の性能を低下させることもあり技術的にむつかしいと共
に、極めて製造コストの高い製造方法である。(Prior art) The conventional method for manufacturing fuel cell electrodes is as shown in Figure 3.
The doctor blade method is common, in which a liquid slurry (18) of powder mixed with a binder is formed into a sheet (9) with a doctor blade (19), but originally a binder that is unnecessary as an electrode is mixed and formed. Thereafter, the binder is removed, and depending on the conditions, the binder may degrade the performance of the electrode, making it a technically difficult and extremely expensive manufacturing method.
（発明が解決しようとする課題）
そこで日本金属工業株式会社は日経産業新聞（昭和６３
年１０月２６日発行）にて、［芝刈り機のような機械」
を使いＮｉ粒粉末均一にならすことにより乾式にてＮ１
粉末シートを製造することを発表したが、具体的な内容
は判らない。(Problem to be solved by the invention) Therefore, Nippon Metal Industries Co., Ltd.
Published on October 26, 2017), [Lawnmower-like machine]
N1 is obtained by dry method by leveling the Ni grain powder uniformly using
The company announced that it will manufacture powder sheets, but the specific details are not known.
本発明は、バインダを使用せず乾式でＮ１粉のシートを
成形し、製造コストを大幅に低減できる製造方法を提供
することを目的とする。An object of the present invention is to provide a manufacturing method that can form a sheet of N1 powder in a dry manner without using a binder and can significantly reduce manufacturing costs.
（課題を解決するための手段）
上記目的を達成するために１本発明においては、上面が
平面の耐熱プレート上面にＮｉ粉散布ユニットにてＮｉ
粉を散布し、耐熱プレート上面より一定厚のＮｉ粉を確
保するためにＮｉ粉が付着しないようにきれいに仕上げ
されたプレンカッタ又はブレードにてＮｉ粉上部を掬い
上げ除去した後、Ｎｉ粉を焼結して乾式のシートに仕上
げ、非接触のレーザ変位計にてシート上面レベルを計測
し、予め計測しておいた耐熱プレート上面のレベルとの
差を乾式のシートの厚さとして製造管理する。(Means for Solving the Problems) In order to achieve the above object, in the present invention, Ni powder is applied to the upper surface of a heat-resistant plate having a flat upper surface using a Ni powder scattering unit.
After scattering the powder and scooping up and removing the upper part of the Ni powder using a pre-finished cutter or blade that is well-finished to prevent Ni powder from adhering to the top surface of the heat-resistant plate, the Ni powder is sintered. The dry sheet is finished, the top surface level of the sheet is measured using a non-contact laser displacement meter, and the difference between the level of the top surface of the heat-resistant plate and the previously measured level is used as the thickness of the dry sheet for manufacturing control.
（作 用）
上記のような製造方法によれば、Ｎｉ粉が付着しないよ
うにきれいに仕上げされたプレンカッタ又はプレートで
余分のＮｉ分を掬い取り、非接触のレーザ変位計でシー
トの厚さを管理し、乾式で製造しているので、厚さ精度
の良いＮｉ粉のシートを短期間で製造でき、製造コスト
を大幅に低減することができる。(Function) According to the above manufacturing method, excess Ni is scooped out using a well-finished plane cutter or plate to prevent Ni powder from adhering, and the thickness of the sheet is controlled using a non-contact laser displacement meter. However, since it is manufactured using a dry method, Ni powder sheets with good thickness accuracy can be manufactured in a short period of time, and manufacturing costs can be significantly reduced.
（実施例）
実施例１
以下本発明の第１の実施例について第１図を参照して説
明する。(Examples) Example 1 A first example of the present invention will be described below with reference to FIG.
ベツド（１）には、極めて走行精度のよいテーブル（２
）が摺動し、このテーブル（２）下部のナツト（３）に
は、送りねじ（４）が螺合し、その端部に駆動用のモー
タ（５）が取付けられている。テーブル（２）の周りに
は、樋（６）が取付けられ、上部には極めて平面度のよ
い耐熱プレート（７）がセットされ、その上にはＮｉ粉
（８）がシーｈ（９）になる迄載せられる。The bed (1) is equipped with a table (2) with extremely high running accuracy.
) slides, a feed screw (4) is screwed into a nut (3) at the bottom of the table (2), and a drive motor (5) is attached to the end of the feed screw (4). A gutter (6) is installed around the table (2), a heat-resistant plate (7) with extremely good flatness is set on the top, and Ni powder (8) is placed on the sheet h (9). It will be posted until the end.
テーブル（２）上方には、左側にＮｉ粉散布ユニット（
１０）、中央部にシート製作ユニット（１１）、右側に
シート厚計測ユニット（１２）の３ユニツトを配設する
。尚、２点鎖線で示したテーブル（２）等は右端に移動
する以前の状態を示す。Above the table (2), there is a Ni powder scattering unit (
10) Three units are arranged: a sheet manufacturing unit (11) in the center and a sheet thickness measuring unit (12) on the right side. Note that table (2) and the like indicated by a two-dot chain line indicate the state before moving to the right end.
シート製作ユニット（１１）には、主要部品としてＮｉ
粉（８）を平に仕上げるためのＮｉ粉が付着しないよう
にきれいに仕上げたプレンカッタ（１３）と、掬い上げ
たＮｉ粉（８）を回収するためのコレクトノズル（１４
）があり、シート厚計測ユニット（１２）には主要部品
としてシート厚計測用のレーザ変位計（１５）と、この
レーザ変位計（１５）をスキャニングするス＝３
キャナ（１６）がある。そして、Ｎｉ粉の焼結は、耐熱
プレート（７）毎−緒に図示しない炉に入れて行う。The seat manufacturing unit (11) includes Ni as a main component.
A flat cutter (13) that is used to flatten the powder (8) so that Ni powder does not adhere to it, and a collection nozzle (14) that is used to collect the scooped-up Ni powder (8).
), and the sheet thickness measurement unit (12) has a laser displacement meter (15) for sheet thickness measurement as main components, and a scanner (16) for scanning this laser displacement meter (15). Then, the Ni powder is sintered together with the heat-resistant plate (7) in a furnace (not shown).
次にこの実施例の作用について説明する。Next, the operation of this embodiment will be explained.
耐熱プレート（７）を上面に何もないきれいな状態でテ
ーブル（２）上にセットし、耐熱プレート（７）上面レ
ベルをシート厚計測ユニット（１２）部において図示し
ないコンピュータから計測ポイント等を指示してスキャ
ナ（１６）によりレーザ変位計（１５）を矢印Ｂの方向
にスキャニングして計測し、前記コンピュータ内に記憶
する。The heat-resistant plate (7) is set on the table (2) in a clean condition with nothing on the top surface, and the top surface level of the heat-resistant plate (7) is determined by the sheet thickness measuring unit (12) section by instructing measurement points etc. from a computer (not shown). Then, the laser displacement meter (15) is scanned in the direction of arrow B by the scanner (16), and the measurement is stored in the computer.
モータ（５）により送りネジ（４）を駆動し、ナツト（
３）を介してテーブル（２）をＮｉ粉散布ユニット（１
０）部へ移動し、Ｎｉ粉（８）を散布する。耐熱プレー
ト（７）上のＮｉ粉（８）の散布厚は、モータ（５）の
回転スピードを変えることにより任意に設定することが
できる。The motor (5) drives the feed screw (4), and the nut (
3) to the table (2) through the Ni powder scattering unit (1).
Move to section 0) and sprinkle Ni powder (8). The thickness of the Ni powder (8) spread on the heat-resistant plate (7) can be arbitrarily set by changing the rotational speed of the motor (5).
続いてテーブル（２）をシート製作ユニット（１１）部
に移動しなからプレンカッタ（１３）を矢印Ａ方向に回
転し、掬い上げたＮｉ粉（８）をコレクトノズル（１４
）にて吸引回収し、シート（９）を製□作する。シ４−
−ｈ（９）厚は図示しない上下機構にてプレンカッタ（
１３）を上下移動し、任意に設定することができる。Next, move the table (2) to the sheet manufacturing unit (11), rotate the pren cutter (13) in the direction of arrow A, and transfer the scooped up Ni powder (8) to the collection nozzle (14).
) to produce a sheet (9). 4-h (9) The thickness is measured using a pre-cutter (not shown) using a vertical mechanism (not shown).
13) can be moved up and down and set as desired.
最後にテーブル（２）をシート厚計測ユニット（１２）
部へ移動し、シート（９）上面レベルを耐熱プレート（
７）上面と同様に計測し、耐熱プレート（７）レベルと
の変位をシート（９）厚として前記コンピュータが表示
又はアウトプットする。あるいはプレンカッタ（１３）
の上下移動機構にフィードバックし、シートの厚さが所
定値になるように制御する。Finally, attach the table (2) to the sheet thickness measurement unit (12).
section, and place the top surface level of the sheet (9) on a heat-resistant plate (
7) Measure in the same way as the top surface, and the computer displays or outputs the displacement from the heat-resistant plate (7) level as the sheet (9) thickness. Or a plane cutter (13)
The sheet thickness is controlled to a predetermined value by feeding back to the vertical movement mechanism of the sheet.
以上のように、この実施例１によれば、シート製造方法
としてＮｉ粉を掬い上げる方式を採用しているので、下
部のシート側には無理、な圧力が掛からず、均一な気孔
率を確保することができる。As described above, according to this Example 1, since the method of scooping up Ni powder is adopted as the sheet manufacturing method, unreasonable pressure is not applied to the lower sheet side and uniform porosity is ensured. can do.
さらにシート厚を多くのポイントを測定しているため、
電池性能への影響等を検証することができる。Furthermore, since the sheet thickness is measured at many points,
The effect on battery performance can be verified.
実施例２
次に第２図を参照して本発明の第２の実施例を説明する
。Embodiment 2 Next, a second embodiment of the present invention will be described with reference to FIG.
第２図は実施例１１のシー［・製作ユニソ＋−（１，１
）部において、プレンカッタ（１３）の代りにブレード
（１７）を使用したもので、このブレード（１７）には
矢印Ｃ方向の微振動が加えられる。他は実施例１−と同
様である。Figure 2 shows the sea [・Production Uniso+-(1,1
), a blade (17) is used instead of the plane cutter (13), and a slight vibration in the direction of arrow C is applied to this blade (17). The rest is the same as in Example 1-.
この場合は、プレンカッタ（１３）に比へシート（９）
上面にカッターマークが発生しないという利点がある他
、実施例１と同様な作用効果が得られる。In this case, the sheet (9) is attached to the plane cutter (13).
In addition to the advantage that cutter marks do not occur on the upper surface, the same effects as in the first embodiment can be obtained.
以上のように本発明によれば乾式でＮｉ粉のシー１−を
成形するので、従来のバインダを混ぜるミキサやバイン
ダを除去する設備等大掛りの装置が不要となるのみなら
ず非接触のレーザ変位計でシートの厚さを管理するので
、精度の良いＮｉ粉のシートを短期間で製造が可能とな
る等、製造コストを大幅に低減することができる。As described above, according to the present invention, since the sheet 1- of Ni powder is formed in a dry process, not only large-scale equipment such as conventional mixer for mixing binder and equipment for removing binder is not required, but also non-contact laser Since the thickness of the sheet is controlled by a displacement meter, it is possible to manufacture highly accurate Ni powder sheets in a short period of time, and manufacturing costs can be significantly reduced.
第１図は本発明の第１の実施例の方法を行っている状態
を示す立面図、第２図は本発明の第２の実施例の方法を
行っている状態の要部を示す立面図、
第３図は従来技術の要部を示す立面図てあ７・・・耐熱
プレート、 ８・・Ｎｉ粉、 ９・・シー１〜．１
Ｏ−Ｎｉ粉散布ユニット、 １トシ一ト製作ユニット
、１２・・シー１−Ｊ’Ｊ 計測ユニッ１〜、 １３・
・・プレンカッタ、１５・・・レーザ変位計、 １７
フレー１く。FIG. 1 is an elevational view showing the state in which the method of the first embodiment of the present invention is being carried out, and FIG. 3 is an elevational view showing the main parts of the prior art. 7. Heat-resistant plate, 8. Ni powder, 9. C. 1
O-Ni powder scattering unit, 1 sheet production unit, 12... sheet 1-J'J measurement unit 1~, 13.
... Plane cutter, 15 ... Laser displacement meter, 17
1 fly.
Claims (1)
てＮｉ粉を散布し、耐熱プレート上面より一定厚のＮｉ
粉を確保するためにＮｉ粉が付着しないようにきれいに
仕上げされたプレンカッタ又はブレードにて余分のＮｉ
粉上部を掬い上げ除去した後、Ｎｉ粉を焼結して乾式の
シートに仕上げ、非接触のレーザ変位計にてシート上面
レベルを計測し、予め計測しておいた耐熱プレート上面
のレベルとの差を乾式のシートの厚さとして製造管理す
るＮｉ粉乾式シートの製造方法。Spread Ni powder on the top surface of the heat-resistant plate, which has a flat top surface, using a Ni powder scattering unit, and spread Ni powder to a certain thickness from the top surface of the heat-resistant plate.
In order to secure the powder, remove excess Ni with a clean cutter or blade that is well-finished to prevent Ni powder from adhering.
After scooping up and removing the upper part of the powder, the Ni powder is sintered and finished into a dry sheet.The level of the top surface of the sheet is measured using a non-contact laser displacement meter, and it is compared with the level of the top surface of the heat-resistant plate measured in advance. A method for manufacturing a Ni powder dry sheet in which the difference is used as the thickness of the dry sheet for manufacturing control.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247364A JPH089722B2 (en) | 1989-09-22 | 1989-09-22 | Ni powder dry sheet manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1247364A JPH089722B2 (en) | 1989-09-22 | 1989-09-22 | Ni powder dry sheet manufacturing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03107402A true JPH03107402A (en) | 1991-05-07 |
| JPH089722B2 JPH089722B2 (en) | 1996-01-31 |
Family
ID=17162326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1247364A Expired - Lifetime JPH089722B2 (en) | 1989-09-22 | 1989-09-22 | Ni powder dry sheet manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH089722B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08143909A (en) * | 1994-11-21 | 1996-06-04 | Toshiba Corp | Powder dispersion molding equipment for fuel cell electrodes |
| JP2008166195A (en) * | 2006-12-28 | 2008-07-17 | Doosan Heavy Industries & Construction Co Ltd | Method for producing electrolyte-impregnated air electrode of molten carbonate fuel cell |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5021906A (en) * | 1973-06-29 | 1975-03-08 | ||
| JPS59100825U (en) * | 1982-12-22 | 1984-07-07 | 株式会社小松製作所 | Spreading and leveling device for sintered alloy powder |
| JPS61127801A (en) * | 1984-11-22 | 1986-06-16 | N D C Kk | Production of acoustical material |
| JPS6254003A (en) * | 1985-09-02 | 1987-03-09 | Daido Metal Kogyo Kk | Manufacture of composite sliding material |
-
1989
- 1989-09-22 JP JP1247364A patent/JPH089722B2/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5021906A (en) * | 1973-06-29 | 1975-03-08 | ||
| JPS59100825U (en) * | 1982-12-22 | 1984-07-07 | 株式会社小松製作所 | Spreading and leveling device for sintered alloy powder |
| JPS61127801A (en) * | 1984-11-22 | 1986-06-16 | N D C Kk | Production of acoustical material |
| JPS6254003A (en) * | 1985-09-02 | 1987-03-09 | Daido Metal Kogyo Kk | Manufacture of composite sliding material |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08143909A (en) * | 1994-11-21 | 1996-06-04 | Toshiba Corp | Powder dispersion molding equipment for fuel cell electrodes |
| JP2008166195A (en) * | 2006-12-28 | 2008-07-17 | Doosan Heavy Industries & Construction Co Ltd | Method for producing electrolyte-impregnated air electrode of molten carbonate fuel cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH089722B2 (en) | 1996-01-31 |
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