Method and device for influencing of a coincidence of at least two plastic melts during a production of a shaped body in an injection-molding process

摘要

The present invention relates to a method and a device for influencing of a coincidence of at least two plastic melts (120) during a production of a shaped body in an injection-molding process. The method has, in this case, the following steps:a) providing a tool with at least one cavity (118) for receiving a plastic melt (120), wherein the tool is designed in such a way that, in the case of a filling of the plastic melt (120) in the tool in at least one portion (126) of the cavity (118) the meeting of the at least two plastic melts (120) occurs, in which the tool at a, on the region (126) adjacent wall (130) via at least one cavity (128) with an adjustable volume (132) has;b) introduction of the plastic melt (120) into the cavity (118) of the tool under pressure in such a way that also the volume (132) of the cavity (128) with a part of the plastic melt (120) is filled;c) reduction of the volume (132) of the cavity (128), as a result of which at least a part of the plastic melt (120) from the cavity (128) in the on the hollow space (128) adjoining region (126) of the cavity (118) is pressed;d) cooling or allowing the mixture to cool of the plastic melt (120) in the cavity (118) of the tool while maintaining the pressure at least partially, as a result of which the shaped body is formed; ande) from the removal of the molded body from the cavity (118) of the tool.