JP2001199002A - Elastic rubber coated metal composite and method of manufacturing the sme - Google Patents
Elastic rubber coated metal composite and method of manufacturing the smeInfo
- Publication number
- JP2001199002A JP2001199002A JP2000012443A JP2000012443A JP2001199002A JP 2001199002 A JP2001199002 A JP 2001199002A JP 2000012443 A JP2000012443 A JP 2000012443A JP 2000012443 A JP2000012443 A JP 2000012443A JP 2001199002 A JP2001199002 A JP 2001199002A
- Authority
- JP
- Japan
- Prior art keywords
- elastic rubber
- metal composite
- coated metal
- discharge nozzle
- jis
- 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
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Fuel Cell (AREA)
- Laminated Bodies (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電気・電子部品等
のクッション材、パッキン材、スペーサ、特に燃料電池
のセパレータとして好適に使用でき、特に製品が取扱い
易く、また生産効率に優れた弾性ゴム被覆金属複合体及
びその製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elastic rubber which can be suitably used as a cushion material, a packing material, a spacer for electric and electronic parts, and particularly as a separator for a fuel cell. The present invention relates to a coated metal composite and a method for producing the same.
【０００２】[0002]
【従来の技術及びその課題】従来からフッ素ゴム等の弾
性ゴムは、耐熱性、電気的絶縁性、耐薬品性等の特性に
優れていることから、上記クッション材やスペーサ等の
各種用途に使用されている。上記の弾性ゴム単体からな
り、比較的肉厚の薄い薄膜のものを電気・電子部品等に
そのまま組み入れようとすると、薄膜上にシワが生じた
り、薄膜同志で密着し剥がしずらくなる等の作業性に問
題があった。そこで、このような問題点を解消するため
に弾性ゴム単体と非伸縮性の金属薄板と複合一体化した
積層体が知られている。2. Description of the Related Art Conventionally, elastic rubbers such as fluoro rubber have been used in various applications such as the above cushioning materials and spacers because of their excellent properties such as heat resistance, electrical insulation and chemical resistance. Have been. When a thin film made of the above elastic rubber and having a relatively thin thickness is to be incorporated into electric / electronic parts as it is, wrinkles may occur on the thin film, or the thin films may adhere to each other and become difficult to peel off. There was a problem with sex. Therefore, in order to solve such a problem, there has been known a laminate integrally formed with a single elastic rubber and a non-stretchable metal thin plate.
【０００３】上記複合一体化の方法としては、通常、金
属薄板の少なくとも片面に弾性ゴムシートを載置し、加
熱加圧する方法が行われているが、部分的に載置する場
合、位置合せが困難であったり、さらには金属薄板の表
面に凹凸があるものでは、均一に貼り合わせることが困
難という問題があった。As a method of the above-mentioned composite integration, a method of placing an elastic rubber sheet on at least one side of a thin metal plate and applying heat and pressure is usually performed. If the metal sheet is difficult or has irregularities on the surface of the metal sheet, there is a problem that it is difficult to bond the metal sheet uniformly.
【０００４】そこで、弾性ゴム層を射出成形法により形
成した金属複合体が提案されている。この方法は、ある
程度生産効率が改良できるが、射出成形法によるバリが
発生し正確な弾性ゴム層の形成が困難であり、また燃料
電池のセパレータの場合、得られるセパレータから不良
部分を取り換えたり取り除くことがやり難いという問題
があった。Therefore, a metal composite in which an elastic rubber layer is formed by an injection molding method has been proposed. Although this method can improve production efficiency to some extent, it is difficult to form an accurate elastic rubber layer due to burrs by injection molding, and in the case of a fuel cell separator, replace or remove defective parts from the obtained separator. There was a problem that things were difficult to do.
【０００５】[0005]
【課題を解決するための手段】本発明は、上述の問題点
を解消できる弾性ゴム被覆金属複合体及びその製造方法
を見出したものであり、その要旨とするところは、金属
薄板の少なくとも片面に、２５℃での粘度（ＪＩＳＫ−
６３８１に準拠）が５０〜８００Ｐａ・ｓの液状ゴムを
吐出ノズルから吐出して特定形状の弾性ゴム層を形成し
てなる弾性ゴム被覆金属複合体、及び、金属薄板の少な
くとも片面に近接して吐出ノズルを設け、金属薄板と吐
出ノズルを相対移動させながら、上記液状ゴムを吐出ノ
ズルから吐出し、ついで硬化させて特定形状の弾性ゴム
層を形成することを特徴とする弾性ゴム被覆金属複合体
の製造方法にある。SUMMARY OF THE INVENTION The present invention has found an elastic rubber-coated metal composite and a method for producing the same, which can solve the above-mentioned problems. The gist of the present invention is that at least one surface of a thin metal plate is provided. , Viscosity at 25 ° C (JISK-
Elastic rubber-coated metal composite in which a liquid rubber of 50 to 800 Pa · s is discharged from a discharge nozzle to form an elastic rubber layer of a specific shape, and discharged in close proximity to at least one surface of a metal sheet. Providing an elastic rubber-coated metal composite, wherein the liquid rubber is discharged from the discharge nozzle while the metal sheet and the discharge nozzle are relatively moved, and then cured to form an elastic rubber layer having a specific shape. In the manufacturing method.
【０００６】本発明で使用する液状ゴムは、室温で流動
を示すポリマーであって、適当な化学反応によって三次
元網目構造となり、通常の架橋ゴムと同様な物理特性を
有する。液状ゴムとしては最終用途に応じて適宜選択で
きるが、具体的には、ブタジエン−アクリロニトリル共
重合体等のポリジエン系、ポリイソブチレン等のポリオ
レフィン系、ポリオキシプロピレン等のポリエーテル
系、ポリオキシアルキレンジスルフィド等のポリスルフ
ィド系、及びフッ素系が例示できる。The liquid rubber used in the present invention is a polymer that flows at room temperature, has a three-dimensional network structure by an appropriate chemical reaction, and has the same physical properties as ordinary crosslinked rubber. The liquid rubber can be appropriately selected according to the final use, but specifically, polydiene-based such as butadiene-acrylonitrile copolymer, polyolefin-based such as polyisobutylene, polyether-based such as polyoxypropylene, and polyoxyalkylene disulfide. And the like, and a polysulfide type and a fluorine type.
【０００７】上記液状ゴムでは燃料電池のセパレータの
ように耐熱性を要求される用途では、フッ素系のもの
で、付加型液状フッ素樹脂で一液又は二液タイプのもの
が好適に使用できる。使用する液状ゴムでは未硬化の粘
度が５０〜８００Ｐａ・ｓ（２５℃）の樹脂を使用する
必要がある。粘度の測定方法はＪＩＳＫ−６３８１に準
拠し、単一円筒回転式粘度計により測定する。粘度が５
０Ｐａ・ｓ未満のものでは、吐出後流動により厚みが保
てず、８００Ｐａ・ｓを越えるものでは吐出が困難とな
り、また吐出後流動性が不足し接着面積の減少が起きる
という問題がある。さらに液状ゴムには、必要に応じて
微粉末シリカ、ケイそう土、カーボンブラック高熱伝導
性無機フィラー等の充填剤を添加してもよい。[0007] In applications requiring heat resistance, such as fuel cell separators, the liquid rubber is preferably a fluorine-based one- or two-part addition-type liquid fluororesin. In the liquid rubber to be used, it is necessary to use a resin having an uncured viscosity of 50 to 800 Pa · s (25 ° C.). The viscosity is measured by a single cylinder rotational viscometer according to JIS K-6381. Viscosity is 5
When the pressure is less than 0 Pa · s, the thickness cannot be maintained due to the flow after the discharge, and when the pressure exceeds 800 Pa · s, the discharge becomes difficult, and the flowability after the discharge is insufficient, and there is a problem that the adhesive area is reduced. Further, a filler such as finely powdered silica, diatomaceous earth, or carbon black high thermal conductive inorganic filler may be added to the liquid rubber, if necessary.
【０００８】なお、上記金属薄板の表面には、密着性の
点から各種プライマー層を設けることが好ましい。この
プライマー層はスプレー法やディッピング法等の通常の
方法により被覆すればよい。プライマー層の厚みは０．
０１μｍ〜５．０μｍの範囲であることが好ましく、
０．０１μｍ未満では、塗布厚さの調整が困難であり、
５．０μｍを越えるものでは、密着性の改良効果が少な
い。It is preferable to provide various primer layers on the surface of the metal sheet from the viewpoint of adhesion. This primer layer may be coated by a usual method such as a spray method or a dipping method. The thickness of the primer layer is 0.
It is preferably in the range of 01 μm to 5.0 μm,
If it is less than 0.01 μm, it is difficult to adjust the coating thickness,
If it exceeds 5.0 μm, the effect of improving the adhesion is small.
【０００９】本発明の製造方法では上記液状ゴムを用
い、吐出ノズルを相対移動させながら吐出して弾性ゴム
層を形成することに特徴があり、移動速度としては５〜
１００ｍｍ／秒、吐出圧力としては５０〜１，０００ｋ
Ｐａの範囲で適宜決めて成形すればよい。吐出成形後の
弾性ゴム層の厚みは０．０５ｍｍ〜４．０ｍｍの範囲と
することが好ましく、０．０５ｍｍ未満では弾力効果が
出にくく、パッキング材としての利用性に劣り、４．０
ｍｍを超えるものでは燃焼電池、特に固体高分子型燃料
電池のセパレータ用としての用途では小型化しずらく、
またコスト高になり易い。The manufacturing method of the present invention is characterized in that the above-mentioned liquid rubber is used to form an elastic rubber layer by discharging while relatively moving a discharge nozzle.
100mm / sec, discharge pressure 50-1,000k
What is necessary is just to determine suitably in the range of Pa and shape | mold. The thickness of the elastic rubber layer after the ejection molding is preferably in the range of 0.05 mm to 4.0 mm. If the thickness is less than 0.05 mm, the elasticity effect is hardly obtained, and the use as a packing material is inferior.
mm, it is difficult to reduce the size of the fuel cell, especially for use as a separator for polymer electrolyte fuel cells,
In addition, the cost tends to be high.
【００１０】さらに、吐出成形後の弾性ゴム層の硬度を
２０〜７０、好ましくは３０〜６０の範囲とすることが
好ましい。硬度の測定方法はＪＩＳＫ６３０１スプリン
グ式硬さ試験Ａ形に準拠して行なう。この硬度が２０未
満ではゴム反発力が低く初期シール力が足らずシール不
良を起こし、７０を超えると硬くなりすぎて弾力性に欠
ける傾向にある。Further, it is preferable that the hardness of the elastic rubber layer after the ejection molding is in the range of 20 to 70, preferably 30 to 60. The hardness is measured according to JIS K6301 spring type hardness test A type. If the hardness is less than 20, the rubber repulsion force is low and the initial sealing force is insufficient, resulting in poor sealing. If the hardness is more than 70, the rubber tends to be too hard and lack elasticity.
【００１１】本発明の金属複合体は電気・電子部品等の
クッション材、パッキン材、スペーサ、Ｏリング等に使
用できるが、特に燃料電池（固体高分子型燃料電池）の
セパレータの用途に好適に使用できる。このようなセパ
レータはより小型化が要求され、また多数のセパレータ
を重ね合わせて使用することから精度が優れ、生産性の
よいセパレータが要求されており、本発明の金属複合体
はこのような要求を満足することが容易である。The metal composite of the present invention can be used for cushioning materials, packing materials, spacers, O-rings and the like of electric and electronic parts, etc., and is particularly suitable for use as a separator for fuel cells (polymer electrolyte fuel cells). Can be used. Such separators are required to be more miniaturized, and since a large number of separators are used in an overlapping manner, a separator having excellent precision and good productivity is required, and the metal composite of the present invention is required to meet such requirements. Is easy to satisfy.
【００１２】[0012]
【実施例】以下、実施例について説明するが、本発明は
これに限定されるものではない。 （実施例）プライマー処理（東芝シリコン（株）製「Ｘ
Ｐ８１−Ｂ００１６」）したステンレス鋼板（厚み１．
０ｍｍ）を可動ステージに載置し、容量５０ｃｃのシリ
ンジに脱泡した液状フッ素ゴムを充填した。ついで、３
軸ロボットを使ってシリンジ先端のノズルから液状フッ
素ゴムを吐出させ、特定形状に線状で移動することで鋼
板上に塗布しフッ素ゴム層を形成した。ノズルは内径
１．５ｍｍの針状ノズルを使い、吐出圧力４００ｋＰａ
で塗布を行った。上記の液状フッ素ゴムとしては信越化
学（株）製ＳＩＦＥＬ ３５１０を使用した。The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto. (Example) Primer treatment (“X” manufactured by Toshiba Silicon Corporation)
P81-B0016 ") stainless steel plate (thickness 1.
0 mm) was placed on a movable stage, and a 50 cc capacity syringe was filled with defoamed liquid fluororubber. Then 3
Liquid fluororubber was ejected from the nozzle at the tip of the syringe using a shaft robot, and moved linearly into a specific shape to apply it on a steel plate to form a fluororubber layer. The nozzle uses a needle-shaped nozzle with an inner diameter of 1.5 mm, discharge pressure 400 kPa
Was applied. SIFEL 3510 manufactured by Shin-Etsu Chemical Co., Ltd. was used as the above liquid fluororubber.
【００１３】塗布後、乾燥炉内に載置し、１６０℃×２
分の加熱条件で硬化させ、燃料電池セパレータを得た。
得られた燃料電池セパレータではステンレス鋼板とフッ
素ゴム層との間の接着性が良好で剥離等がなく、またバ
リや気泡等の発生が見られず燃料電池セパレータとして
の性能上問題なかった。使用した液状フッ素ゴムの粘度
は２５℃で４００Ｐａ・ｓ、硬化後のフッ素ゴム層の硬
度は５０であった。After the application, the substrate is placed in a drying oven and is heated at 160 ° C. × 2
The fuel cell was cured under the heating condition for one minute to obtain a fuel cell separator.
In the obtained fuel cell separator, the adhesion between the stainless steel plate and the fluororubber layer was good, there was no separation or the like, and no generation of burrs or bubbles was observed, and there was no problem in performance as the fuel cell separator. The viscosity of the liquid fluororubber used was 400 Pa · s at 25 ° C., and the hardness of the fluororubber layer after curing was 50.
【００１４】[0014]
【発明の効果】本発明の金属複合体及びその製造方法に
よれば、射出成形法で必要であったバリ除去が不要とな
り、また多数個取りも容易となり生産性が極めて良好で
ある。特に燃料電池のセパレータでは生産速度が著しく
短縮されるという利点がある。また、塗布パターンを変
更したい場合も射出成形法のように金型を製作する必要
がなくロボットのプログラム変更だけであらゆるパター
ンの弾性ゴム層が形成できるので低コストで変更可能で
ある。このように本発明の金属複合体の製造方法では、
上記金属複合体を正確かつ効率的に製造できるという利
点を有しており、得られる金属複合体は各種電気・電子
部品等のクッション材、パッキン材、スペーサ、特に燃
料電池（固体高分子型燃料電池）のセパレータとしての
利用性が大きい。According to the metal composite of the present invention and the method for producing the same, the removal of burrs required in the injection molding method becomes unnecessary, and the multi-piece manufacturing is facilitated, so that the productivity is extremely good. Particularly, a fuel cell separator has an advantage that the production speed is significantly reduced. Also, when it is desired to change the application pattern, it is not necessary to manufacture a mold as in the injection molding method, and the elastic rubber layer of any pattern can be formed only by changing the program of the robot. Thus, in the method for producing a metal composite of the present invention,
It has the advantage that the above-mentioned metal composite can be manufactured accurately and efficiently, and the obtained metal composite can be used for cushioning materials, packing materials, spacers of various electric / electronic parts, especially for fuel cells (solid polymer type fuels). It is very useful as a separator for batteries.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 4F100 AB01A AK03B AK17B AK27 AK27J AK29 AK29B AK29J AK54B AK57B AN00B AN02 AN02J BA02 EA041 EH112 EH462 EJ082 GB41 JA06B JK07B JK12B JL02 JL05 JM01B YY00B 5H026 AA06 BB00 BB04 BB10 CX08 EE02 EE18 EE19 HH00 HH03 HH08 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 4F100 AB01A AK03B AK17B AK27 AK27J AK29 AK29B AK29J AK54B AK57B AN00B AN02 AN02J BA02 EA041 EH112 EH462 EJ082 GB41 JA06B JK07B JK12B JL02 JL00 JL02 JL00 JL02 JL00 HH08
Claims (5)
の粘度（ＪＩＳＫ−６３８１に準拠）が５０〜８００Ｐ
ａ・ｓの液状ゴムを吐出ノズルから吐出して特定形状の
弾性ゴム層を形成してなる弾性ゴム被覆金属複合体。At least one surface of a thin metal plate has a viscosity at 25 ° C. (based on JIS K-6381) of 50 to 800 P.
An elastic rubber-coated metal composite formed by discharging a.s liquid rubber from a discharge nozzle to form an elastic rubber layer having a specific shape.
ン系、ポリエーテル系、ポリスルフィド系、及び、フッ
素系から選ばれてなる請求項１記載の弾性ゴム被覆金属
複合体。2. The elastic rubber-coated metal composite according to claim 1, wherein the liquid rubber is selected from a polydiene type, a polyolefin type, a polyether type, a polysulfide type, and a fluorine type.
出ノズルを設け、金属薄板と吐出ノズルを相対移動させ
ながら、２５℃での粘度（ＪＩＳＫ−６３８１に準拠）
が５０〜８００Ｐａ・ｓの液状ゴムを吐出ノズルから吐
出し、ついで硬化させて特定形状の弾性ゴム層を形成す
ることを特徴とする弾性ゴム被覆金属複合体の製造方
法。3. A discharge nozzle is provided near at least one surface of a thin metal plate, and the viscosity at 25 ° C. is determined while moving the thin metal plate and the discharge nozzle relatively (based on JIS K-6381).
A method for producing an elastic rubber-coated metal composite, comprising: discharging a liquid rubber having a pressure of 50 to 800 Pa · s from a discharge nozzle, and then curing the liquid rubber to form an elastic rubber layer having a specific shape.
ｍ〜４．０ｍｍで硬度（ＪＩＳＫ ６３０１スプリング
式硬さ試験Ａ形）が２０〜７０の範囲であることを特徴
とする請求項１乃至３記載の弾性ゴム被覆金属複合体又
はその製造方法。4. The thickness of an elastic rubber layer to be formed is 0.05 m.
The elastic rubber-coated metal composite according to any one of claims 1 to 3, wherein the hardness (JIS K 6301 spring hardness test A type) is 20 to 70 at m to 4.0 mm.
徴とする請求項１乃至４記載の弾性ゴム被覆金属複合体
又はその製造方法。5. The elastic rubber-coated metal composite according to claim 1, which is used for a fuel cell separator, or a method for producing the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000012443A JP2001199002A (en) | 2000-01-21 | 2000-01-21 | Elastic rubber coated metal composite and method of manufacturing the sme |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000012443A JP2001199002A (en) | 2000-01-21 | 2000-01-21 | Elastic rubber coated metal composite and method of manufacturing the sme |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001199002A true JP2001199002A (en) | 2001-07-24 |
Family
ID=18540157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000012443A Pending JP2001199002A (en) | 2000-01-21 | 2000-01-21 | Elastic rubber coated metal composite and method of manufacturing the sme |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001199002A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6713205B2 (en) | 2001-04-17 | 2004-03-30 | Shin-Etsu Chemical Co., Ltd. | Sealing material for solid polymer fuel cell separator |
| US6780535B2 (en) | 2001-11-12 | 2004-08-24 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| US6875534B2 (en) | 2001-06-22 | 2005-04-05 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| US7087338B2 (en) | 2002-02-28 | 2006-08-08 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| JP2007511045A (en) * | 2003-11-07 | 2007-04-26 | ゼネラル・モーターズ・コーポレーション | Integrated bipolar plate with spring seal |
| US7482403B2 (en) | 2001-04-13 | 2009-01-27 | Shin-Etsu Chemical Co., Ltd. | Sealing material for polymer electrolyte fuel-cell separator |
| KR100921278B1 (en) * | 2007-12-11 | 2009-10-09 | 현대자동차주식회사 | Fluorine rubber coating plate and method for manufacturing the same |
-
2000
- 2000-01-21 JP JP2000012443A patent/JP2001199002A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7482403B2 (en) | 2001-04-13 | 2009-01-27 | Shin-Etsu Chemical Co., Ltd. | Sealing material for polymer electrolyte fuel-cell separator |
| US6713205B2 (en) | 2001-04-17 | 2004-03-30 | Shin-Etsu Chemical Co., Ltd. | Sealing material for solid polymer fuel cell separator |
| US6875534B2 (en) | 2001-06-22 | 2005-04-05 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| US6780535B2 (en) | 2001-11-12 | 2004-08-24 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| US7087338B2 (en) | 2002-02-28 | 2006-08-08 | Shin-Etsu Chemical Co., Ltd. | Polymer electrolyte fuel-cell separator sealing rubber composition |
| JP2007511045A (en) * | 2003-11-07 | 2007-04-26 | ゼネラル・モーターズ・コーポレーション | Integrated bipolar plate with spring seal |
| KR100921278B1 (en) * | 2007-12-11 | 2009-10-09 | 현대자동차주식회사 | Fluorine rubber coating plate and method for manufacturing the same |
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