Method and mold for producing sealing plates by injection molding and sealing plates produced accordingly

A mold for production of sealing plates which comprises a plurality of sealing rings connected by radial webs, made of fiber-reinforced plastic by injection molding, wherein wall-type guide elements are arranged obliquely to a mold channel defined by the mold, which is thereby largely constricted in the region of weld lines formed by the convergence of the fronts of the divided plastic melt streams, these guide elements being movable between an initial position, in which 1-10% of the mold channel is cleared on both sides and 0-20% of the mold channel is cleared at the bottom, and a retraction position in which the end face of the guide element facing the bottom of the mold channel forms a seal with the surrounding mold channel wall or is elevated slightly above it.