| 摘要 |
A method for producing at least one sealing element on a surface 24 of a plate 10, 12 for a fuel cell system, such as a bipolar plate, by injection moulding, the plate having at least one protrusion (16, fig 1) bounding at least one guide channel (20, fig 1) on a side facing away from the surface. The method comprises: providing at least one mold 26 having: at least one cavity 28 by means of which the sealing element is produced by injecting a liquid plastic material into the cavity; and at least one element 38 configured to heat and/or cool the liquid plastic material, the element being arranged in the vicinity of the cavity; arranging the mould on the side of the surface such that the cavity runs angularly across the protrusion; and injecting the plastic material into the cavity. Preferably, the mould a gap is created between the mould and the surface, the mould having at least one recess 42 in the vicinity of the cavity; the recess being configured to receive a portion of the plastic material injected into the cavity flowing through the gap into the recess. The heating/cooling elements are used to cause fast curing of the plastic material to prevent or minimise flash. |
