JP2015508561A - 複数の燃料電池セパレータプレートアセンブリの製造方法 - Google Patents
複数の燃料電池セパレータプレートアセンブリの製造方法 Download PDFInfo
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Abstract
Description
Claims (15)
- 溶融混合物を提供するように黒鉛と樹脂材料とを混合し、
前記混合物から連続的な流れ場板を成形し、
前記連続的な流れ場板を、複数の単体の流れ場板に分割し、
前記連続的な流れ場板および前記単体の流れ場板のうちの一方に流れ場流路を提供する、ことを備えた流れ場板の製造方法。 - 前記成形ステップが、前記樹脂が40:60〜60:40の液相対固相比で存在するところで前記混合物を押出し成形することを含むことを特徴とする請求項1に記載の製造方法。
- 前記黒鉛が片状黒鉛粉末を含み、前記樹脂が、フッ素化エチレンプロピレン、ペルフルオロアルコキシ共重合体、およびポリテトラフルオロエチレンのうち少なくとも一つを含むことを特徴とする請求項2に記載の製造方法。
- 前記提供ステップが、前記成形ステップ中に行われることを特徴とする請求項1に記載の製造方法。
- 前記成形ステップが、連続的な流れ場板のブランクを製造することを含み、前記提供ステップが、前記連続的な流れ場板および前記単体の流れ場板のうちの一方に前記流れ場流路を機械加工することを含むことを特徴とする請求項1に記載の製造方法。
- 前記分割ステップが、前記連続的な流れ場板を、複数の前記単体の流れ場板に切断することを含むことを特徴とする請求項1に記載の製造方法。
- セパレータプレートアセンブリを製造するように前記単体の流れ場板を互いに積層するステップを備えることを特徴とする請求項1に記載の製造方法。
- 前記積層ステップが、2つの前記単体の流れ場板を互いにフルオロエラストマにより接着することを含むことを特徴とする請求項7に記載の製造方法。
- 前記成形ステップが、所望の外形を有するダイを通して前記混合物を押出し成形することを含み、前記樹脂が40:60〜60:40の液相対固相比で存在するところで前記混合物がダイから排出されることを特徴とする請求項1に記載の製造方法。
- 前記押出し成形ステップが、前記混合物をバレル内に配置し、前記外形を有するダイを通して前記混合物を押し込むように前記バレルを通してラムを摺動可能に移動させることを含むことを特徴とする請求項9に記載の製造方法。
- 前記摺動可能に移動させるステップが、前記ラムをその軸を中心として回転させることなく移動させることを特徴とする請求項10に記載の製造方法。
- 前記外形が、前記流れ場流路を提供するリブを含むことを特徴とする請求項9に記載の製造方法。
- 前記成形ステップが、2つのベルトの間で前記混合物をプレス加工することを含むことを特徴とする請求項1に記載の製造方法。
- 前記ベルトが、前記流れ場流路を提供するリッジを含み、前記混合物が前記ベルト上にペーストとして配置されることを特徴とする請求項13に記載の製造方法。
- 前記プレス加工ステップが、前記2つのベルトの間で前記混合物を250°Cを上回る温度かつ3.5MPa〜7.0MPaの圧力でプレス加工し、与圧しながら200°C未満に冷却することを含むことを特徴とする請求項13に記載の製造方法。
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