| 摘要 |
A separator for a fuel cell is provided to improve draining function and workability, and to prevent decomposition and elution of resin included in the separator for a fuel cell. A method for producing a separator for a fuel cell comprised of a composite material of carbon powders and a thermosetting resin comprises the steps of: compressing the composite material of the carbon powders and the thermosetting resin to provide a molded body by compression molding having a gas flow field groove for flowing a reactive gas formed on at least one of the surfaces thereof, wherein a punching die(33) and a molding die(35) opposed to each other are used and the composite material of the carbon powders and the thermosetting resin are received in a material receiving part of the molding die, wherein the punching die is approached relatively to the molding die; and irradiating an infrared laser beam toward the internal surface of the gas flow field groove while relatively moving the optical axis of the infrared laser beam to the molded body along the gas flow field groove, thereby applying infrared laser process to the internal surface of the gas flow field groove after the completion of the compressing step. |
