A set of molding dies, molding structure, and molding process for fuel-cell separator

摘要

To produce a fuel-cell separator (6) formed with a plurality of protuberances (6a) on its base plate, a lower die (3) is assembled by stacking a plate (2) in intimate contact with a lower-die base (1) with a mirror-finished surface, the plate (2) having a plurality of through holes (2a) extending therethrough and a uniform thickness. A side frame (4) is stacked on the lower die (3) to charge a molding material (6P) therein. Then, the material (6P) is heated and compressed with an upper die (5) to mold an article (6) with protuberances (6a) having a constant height and a constant flatness at their top surfaces.