JPH089722B2 - Ni powder dry sheet manufacturing method - Google Patents
Ni powder dry sheet manufacturing methodInfo
- Publication number
- JPH089722B2 JPH089722B2 JP1247364A JP24736489A JPH089722B2 JP H089722 B2 JPH089722 B2 JP H089722B2 JP 1247364 A JP1247364 A JP 1247364A JP 24736489 A JP24736489 A JP 24736489A JP H089722 B2 JPH089722 B2 JP H089722B2
- Authority
- JP
- Japan
- Prior art keywords
- powder
- sheet
- resistant plate
- heat
- top surface
- 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 - Lifetime
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
- Powder Metallurgy (AREA)
- Inert Electrodes (AREA)
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] (Field of Industrial Application) The present invention relates to a method for producing a Ni powder dry type sheet for a fuel cell electrode.
（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
Ni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) A conventional method for manufacturing a fuel cell electrode is as shown in FIG.
The doctor blade method is generally used to form a sheet (9) with a doctor blade (19) as a liquid slurry (18) in which a binder is mixed with Ni powder, but originally, a binder unnecessary as an electrode is mixed and formed, After that, the binder is removed, and depending on the conditions, the binder may deteriorate the performance of the electrode and is technically difficult, and
This is a very 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粉末を均一にならすことにより乾式にてNi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。(Problems to be solved by the invention) Therefore, Nippon Metal Industry Co., Ltd.
(October 26, 2014), it was announced that a Ni powder sheet will be manufactured by a dry process by evenly smoothing the Ni powder using a "machine such as a lawn mower". Absent.
本発明は、バインダを使用せず乾式でNi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。It is an object of the present invention to provide a manufacturing method in which a sheet of Ni powder is dry-molded without using a binder and the manufacturing cost can be significantly reduced.
（課題を解決するための手段） 上記目的を達成するために、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粉上部を斜めに掬い上
げ除去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 sprayed on the upper surface of the heat resistant plate having a flat upper surface by a Ni powder spraying unit, and the Ni having a constant thickness from the upper surface of the heat resistant plate is spread. In order to secure the powder, Ni powder is cleanly finished to prevent it from adhering to it, and the upper surface of the Ni powder is scooped up and removed to finish it into a dry sheet, and the non-contact laser displacement meter is used to measure the top surface of the sheet. Is measured and the difference between the measured level and the level of the upper surface of the heat-resistant plate is measured and controlled as the thickness of the dry sheet.
（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、粒径が２μ
ｍ程度と小さいNi粉の層を気孔率（一定の体積における
Ni粉を除いた空隙の占める割合）が均一で、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。(Operation) According to the manufacturing method as described above, the excess Ni content is scooped by the clean cutter or plate so that the Ni powder does not adhere, and the sheet thickness is controlled by the non-contact laser displacement meter. Since it is manufactured by the dry method, the particle size is 2μ.
Porosity of Ni powder layer as small as m (at constant volume
The ratio of voids excluding Ni powder) is uniform, and the Ni powder sheet with good thickness accuracy can be manufactured in a short period of time, and the manufacturing cost 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。(Example) Example 1 Hereinafter, a first example of the present invention will be described with reference to FIG.
ベッド（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）下部のナット
（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）がシート（９）になる迄載せられる。A table (2) with extremely high running accuracy slides on the bed (1), and a feed screw (4) is screwed into a nut (3) below the table (2) and driven at its end. A motor (5) for the motor is attached. Table (2)
A gutter (6) is attached around the above, a heat-resistant plate (7) having extremely high flatness is set on the upper part, and Ni powder (8) is placed on the heat resistant plate (7) until it becomes a sheet (9).
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ユニットを配設する。
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 are arranged three units: a Ni powder spraying unit (10) on the left side, a sheet manufacturing unit (11) on the center, and a sheet thickness measuring unit (12) on the right side.
The table (2) and the like indicated by the two-dot chain line show 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キャナ（16）がある。そし
て、Ni粉の焼結は、耐熱プレート（７）毎一緒に図示し
ない炉に入れて行う。The sheet manufacturing unit (11) collects the main parts such as a plain cutter (13) for finishing the Ni powder (8) so that the Ni powder does not adhere to it and the scooped Ni powder (8). There is a collect nozzle (14) for
The sheet thickness measuring unit (12) has a laser displacement gauge (15) for sheet thickness measurement and a scanner (16) for scanning the laser displacement gauge (15) as main components. Then, the Ni powder is sintered together with each 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 described.
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。Set the heat-resistant plate (7) on the table (2) in a clean state with nothing on the upper surface, and set the upper surface level of the heat-resistant plate (7) in the sheet thickness measuring unit (12) part by instructing a measurement point or the like from a computer (not shown). Then, the laser displacement meter (15) is scanned by the scanner (16) in the direction of arrow B and measured, and stored in the computer.
モータ（５）により送りネジ（４）を駆動し、ナット
（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 feed screw (4) is driven by the motor (5), and the table (2) is moved to the Ni powder dispersion unit (1) via the nut (3).
Move to part 0) and sprinkle with Ni powder (8). The dispersion thickness of the Ni powder (8) on the heat resistant plate (7) can be arbitrarily set by changing the rotation 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
に移動しながらプレンカッタ（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。シート（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。Then, while moving the table (2) to the sheet manufacturing unit (11), the plane cutter (13) is rotated in the direction of arrow A, and the scooped up Ni powder (8) is sucked and collected by the collect nozzle (14). Make a seat (9). The thickness of the sheet (9) can be arbitrarily set by vertically moving the plane cutter (13) by an up / down mechanism (not shown).
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 measuring unit (12).
Then, the upper surface level of the sheet (9) is measured in the same manner as the upper surface of the heat resistant plate (7), and the displacement from the heat resistant plate (7) level is displayed or output by the computer as the thickness of the sheet (9). Or plane cutter (13)
The thickness of the sheet is controlled to a predetermined value by feeding back to the vertical movement mechanism.
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 the first embodiment, since the method of scooping Ni powder is adopted as the sheet manufacturing method, an excessive pressure is not applied to the lower sheet side, and a uniform porosity is secured. be able to.
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。Further, since the sheet thickness is measured at many points, it is possible to verify the influence on the battery performance.
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。Second Embodiment Next, a second embodiment of the present invention will be described with reference to FIG.
第２図は実施例11のシート製作ユニット（11）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。FIG. 2 shows that the blade (17) is used in place of the plane cutter (13) in the sheet manufacturing unit (11) of the eleventh embodiment, and a slight vibration in the direction of arrow C is applied to this blade (17). . Others are the same as in the first embodiment.
この場合は、プレンカッタ（13）に比べシート（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) compared to the plane cutter (13)
In addition to the advantage that no cutter mark is generated on the upper surface, the same operation and effect as those of the first embodiment can be obtained.
以上のように本発明によれば乾式でNi粉のシートを形
成するので、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、
気孔率が均一で精度の良い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 a sheet of Ni powder is formed by a dry method, a large-scale device such as a mixer for mixing a binder and a device for removing the binder is not required, and a non-contact laser displacement meter is not required. Since the thickness of the sheet is controlled by
Manufacturing cost can be significantly reduced, for example, a sheet of Ni powder having a uniform porosity and high accuracy can be manufactured in a short period of time.
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である。 ７……耐熱プレート、８……Ni粉、９……シート、10…
…Ni粉散布ユニット、11……シート製作ユニット、12…
…シート厚計測ユニット、13……プレンカッタ、15……
レーザ変位計、17……ブレード。FIG. 1 is an elevational view showing a state in which the method of the first embodiment of the present invention is being performed, and FIG. 2 is an elevational view showing an essential part in a state of performing the method of the second embodiment of the present invention. FIG. 3 is an elevational view showing the main part of the prior art. 7 ... Heat-resistant plate, 8 ... Ni powder, 9 ... Sheet, 10 ...
… Ni powder spraying unit, 11 …… Sheet manufacturing unit, 12…
… Sheet thickness measurement unit, 13 …… Plen cutter, 15 ……
Laser displacement meter, 17 ... Blade.
Claims (1)
置された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粉を散布する第１の工程と、前記耐熱プレー
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
ードにて耐熱プレート上面に散布された余分のNi粉を斜
めに掬い上げ除去し表面が平らの乾式のシートに仕上げ
る第２の工程と、シート上面レベルを耐熱プレート上面
と同様に非接触のレーザ変位計にて計測し、予め計測し
ておいた耐熱プレート上面レベルとの変位を乾式シート
のシート厚としてシート厚を所定値に製造管理する第３
の工程とを備えたことを特徴とするNi粉乾式シートの製
造方法。1. A first step of spraying Ni powder onto an upper surface of a heat-resistant plate having a flat surface arranged on a table on a bed having a feeding mechanism by a Ni-powder spraying unit; To secure the Ni powder, clean it so that it does not adhere to it.Use a planer cutter or blade to scoop up the excess Ni powder scattered on the upper surface of the heat-resistant plate and remove it to make a dry sheet with a flat surface. In the second step, the sheet top surface level is measured with a non-contact laser displacement meter in the same manner as the heat resistant plate top surface, and the displacement from the heat resistant plate top surface level measured in advance is taken as the sheet thickness of the dry type sheet. Third manufacturing control to a specified value
And a process for producing a Ni powder dry type sheet.
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 JPH03107402A (en) | 1991-05-07 |
| JPH089722B2 true 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) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08143909A (en) * | 1994-11-21 | 1996-06-04 | Toshiba Corp | Device for sprinkling and forming powder for fuel-cell electrode |
| KR100874331B1 (en) * | 2006-12-28 | 2008-12-18 | 두산중공업 주식회사 | Method for manufacturing electrolyte-impregnated cathode in molten carbonate fuel cell |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5431444B2 (en) * | 1973-06-29 | 1979-10-06 | ||
| 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
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03107402A (en) | 1991-05-07 |
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