MANUFACTURING METHOD OF FUEL CELL SEPARATOR THAT MINIMIZES SURFACE DEFECTS BY USING SURFACE POLISHING OF HIGH PRESSURE INJECTION METHOD

Disclosed is a method of manufacturing a fuel cell separator, which minimizes surface defects by using high-pressure spray surface polishing to minimize surface defects of fuel cell separator plates by performing surface polishing using a high-pressure spray method in which polishing fluid is spraye...

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Bibliographische Detailangaben
Hauptverfasser:	YOO TAEK JEON, HEON HEO, WON DO KIM, JAE YEOL LEE, BYUNG HAK JHUNG
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	ABRASIVE OR RELATED BLASTING WITH PARTICULATE MATERIAL BASIC ELECTRIC ELEMENTS ELECTRICITY GRINDING INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PERFORMING OPERATIONS PHYSICS POLISHING PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	Disclosed is a method of manufacturing a fuel cell separator, which minimizes surface defects by using high-pressure spray surface polishing to minimize surface defects of fuel cell separator plates by performing surface polishing using a high-pressure spray method in which polishing fluid is sprayed at high pressure through a polishing fluid spray nozzle before performing a vision inspection. The method of manufacturing a fuel cell separator which minimizes surface defects using high-pressure spray surface polishing according to the present invention comprises: (a) a step of forming a reaction gas channel and a coolant channel by molding the fuel cell separator main body; (b) a step of injection molding a gasket on the fuel cell separator main body with the reaction gas channel and cooling water channel formed, and attaching a gasket along an edge of the fuel cell separator main body; (c) a step of performing high-pressure spray surface polishing using a high-pressure spray surface polishing device which sprays polishing fluid at high pressure on the fuel cell separator main body to which the gasket is attached; (d) a step of washing and drying the surface of the fuel cell separator main body on which the high-pressure injection surface polishing was performed; and (e) a step of performing a vision inspection on the surface of the washed and dried fuel cell separator main body using a vision camera. 비전 검사를 실시하기 전에 연마유체를 연마유체 분사 노즐을 통하여 고압으로 분사하는 고압 분사 방식의 표면연마를 실시하는 것에 의해, 연료전지 분리판의 표면 불량을 최소화할 수 있는 고압 분사 방식의 표면연마를 이용하여 표면 불량을 최소화시킨 연료전지 분리판 제조 방법에 대하여 개시한다. 본 발명에 따른 고압 분사 방식의 표면연마를 이용하여 표면 불량을 최소화시킨 연료전지 분리판 제조 방법은 (a) 연료전지 분리판 본체를 성형하여 반응가스 채널 및 냉각수 채널을 형성하는 단계; (b) 상기 반응가스 채널 및 냉각수 채널이 형성된 연료전지 분리판 본체를 가스켓 사출 성형하여, 상기 연료전지 분리판 본체의 가장자리를 따라 가스켓을 부착하는 단계; (c) 상기 가스켓이 부착된 연료전지 분리판 본체에 연마유체를 고압으로 분사하는 고압분사 표면연마 장치를 이용하여 고압분사 표면연마를 실시하는 단계; (d) 상기 고압분사 표면연마가 실시된 연료전지 분리판 본체의 표면을 수세하고, 건조하는 단계; 및 (e) 상기 수세 및 건조된 연료전지 분리판 본체의 표면을 비전 카메라를 이용하여 비전 검사를 실시하는 단계;를 포함하는 것을 특징으로 한다.