| 摘要 |
<p>A method for the production of elongated profiles or ledges (21) out of solidifying compounds in a mold with at least one lower part and at least one upper part, the molding compound (20) being continuously injected into the mold cavity (4), with the injected molding compound (20) being transported away from the gating point(s) and out of the mold under steady extension of the mold cavity (4) and under steady elongation of the forming profile or ledge (21) by relative movement of mold components and wherein molding compound (20) is injected until the profile or ledge (21) reaches its designated length. In order to manufacture particularly high class profiles and ledges, at the beginning of the injection process the molding compound (20) fills up an end section (4a) of the cavity (4) of the profile or ledge (21) to be formed, said cavity being closed in direction of the exit of the profile, beyond the gating point (3), wherein beyond the gating point (3) due to the process pressure the front section of the molding compound (20) during the relative movement of the mold components remains in position as free front section (20a) of the molding compound (20) with reference to the upper mold part, wherein the mold cavity (4) is filled up while molding compound (20) is transported away from the gating point (3) and out of the mold.</p> |
