MANUFACTURING METHOD OF SEPARATOR FOR FUEL CELL
The present invention relates to a method for manufacturing a separator for a fuel cell, in which a carbon coating film (50) is formed on a titanium substrate (41) having a titanium oxide layer (41a) on a surface thereof by CVD. The method comprises: a process of making the periphery of a titanium s...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | The present invention relates to a method for manufacturing a separator for a fuel cell, in which a carbon coating film (50) is formed on a titanium substrate (41) having a titanium oxide layer (41a) on a surface thereof by CVD. The method comprises: a process of making the periphery of a titanium substrate (41) having a titanium oxide layer (41a) on a surface thereof into a vacuum; an irradiation process of irradiating the surface of the titanium oxide layer (41a) of the titanium substrate (41) with light having a wavelength of 390 nm or less before or during the formation of a carbon coating film (50); and a process of forming a carbon coating film (50) on a light irradiation face of the titanium oxide layer (41a) irradiated with the light in the irradiation process.
표면에 산화티타늄층(41a)을 갖는 티타늄 기재(41)에 탄소 피막(50)을 CVD에 의해 성막하는, 연료 전지용 세퍼레이터의 제조 방법이다. 이 방법에서는, 표면에 산화티타늄층(41a)을 갖는 티타늄 기재(41)의 주위를 진공 분위기로 하는 공정과, 탄소 피막(50)의 성막 전 또는 성막 중, 티타늄 기재(41)의 산화티타늄층(41a)의 표면에 390㎚ 이하의 파장의 광을 조사하는 조사 공정과, 상기 조사 공정에 있어서 광이 조사된 산화티타늄층(41a)의 광조사면에 탄소 피막(50)을 성막하는 공정을 포함한다. |
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