The method for extruding and labeling a packaging tube comprises the following successive steps: a) forming a partially or totally tubular label from a film in a shaper; b) inserting the label into a calibration element; c) extruding a tubular body at the concave-face side of the label in an extrusion head; d) bringing the outer face of the extruded tubular body into contact with the concave face of the label. In the method, the label comprises at least one layer of which the melting temperature is at least 20° C. higher than the melting temperature of the extruded tubular body. A first pressure difference is formed in the extruded tube with an air jet.

The invention relates to a device and a method for semi-continuous blow moulding of fiber-reinforced, thermoplastic, endless, hollow-profile-shaped components with longitudinally constant or varying cross-sections, consisting of at least one consolidation tool, which, in its closed state, encloses a preform enclosing an elastically moldable pressure chamber.

A fin block is provided for a calibrating device for calibrating an extruded profile, wherein the fin block includes a fin structure, which has a plurality of fins. The fins are spaced apart from one another by grooves and are arranged in longitudinal direction (L) of the fin block. The fin block has at least one channel for feeding a temperature-control fluid, wherein the at least one channel is formed in an integrated manner in the fin block. Furthermore, a method is provided for the production of the above-mentioned fin block, and a calibrating device which includes a plurality of the above-mentioned fin blocks. Furthermore, a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and a corresponding data set is provided.

A fin block is provided for a calibrating device for the calibrating of an extruded plastic profile, wherein the fin block includes a back structure and a fin structure having a plurality of fins. The fins are spaced apart from one another and arranged on the back structure in longitudinal direction (L) of the back structure. The back structure of the fin block has a plurality of apertures, the shape and/or arrangement of which within the back structure depends on a predetermined mechanical load capacity for the back structure. Furthermore, a method for the production of the above-mentioned fin block and a calibrating device, which includes a plurality of the above-mentioned fin blocks, is provided. Furthermore, a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and a corresponding data set is provided.

A fin block is provided for a calibrating device for the calibrating of an extruded plastic profile, wherein the fin block includes a back structure and a fin structure having a plurality of fins. The fins are spaced apart from one another and arranged on the back structure in longitudinal direction (L) of the back structure. The back structure of the fin block has a plurality of apertures, the shape and/or arrangement of which within the back structure depends on a predetermined mechanical load capacity for the back structure. Furthermore, a method for the production of the above-mentioned fin block and a calibrating device, which includes a plurality of the above-mentioned fin blocks, is provided. Furthermore, a system for the additive manufacture of the above-mentioned fin block, a corresponding computer program and a corresponding data set is provided.

The method for extruding and labeling a packaging tube comprises the following successive steps: a) forming a partially or totally tubular label from a film in a shaper; b) inserting the label into a calibration element; c) extruding a tubular body at the concave-face side of the label in an extrusion head; d) bringing the outer face of the extruded tubular body into contact with the concave face of the label. In the method, the label comprises at least one layer of which the melting temperature is at least 20° C. higher than the melting temperature of the extruded tubular body. A first pressure difference is formed in the extruded tube with an air jet.

The invention also relates to a device for implementing said method and to a tube obtained by said method.

The invention relates to a device and a method for semi-continuous blow moulding of fiber-reinforced, thermoplastic, endless, hollow-profile-shaped components with longitudinally constant or varying cross-sections, consisting of at least one consolidation tool, which, in its closed state, encloses a preform enclosing an elastically moldable pressure chamber.

A corrugator for an extrusion system for shaping a tubular plastic product, having a multiplicity of mould blocks, a guide track, along which the mould blocks are guided in each case in pairs during the operation of the corrugator from a starting region of the guide track towards an outlet region of the guide track, a first return track, along which the mould blocks are guided during the operation of the corrugator from the outlet region towards the starting region, and a second return track, with the aid of which individual mould blocks can be removed from the first return track and/or can be inserted into the latter during the operation of the corrugator.

A process for preparing a fiber reinforced thermoplastic is disclosed. The process includes melting a first thermoplastic and a second thermoplastic in a melting zone of a twin-screw processor, feeding at least one continuous fiber downstream of the melting zone into a melted mixture of the first thermoplastic and the second thermoplastic, incorporating the at least one continuous fiber into the melted mixture in a mixing zone, the mixing zone including at least one wave element having a continuous outer surface in the form of a helical wave, and obtaining the fiber reinforced thermoplastic from the twin screw processor. Further, a fiber reinforced thermoplastic composition prepared by an extrusion process the composition having a density between 1.3 g/cc to 1.7 g/cc and a flexural modulus of at least 4000 MPa is disclosed.

In a method for producing a coiled tubing (RW) from a thermoplastic material, in a first shaping step a tubular extrudate (EX) is extruded via an annular nozzle gap (16) in an extruder (12) before, in a second shaping step directly following the first shaping step, the extrudate which is drawn down from the nozzle gap and is still plastically deformable is calibrated in a shaping device (18) in order to obtain a geometrically defined profile cross section (PQ) and is shaped into the coiled tubing, whereupon the coiled tubing having the geometrically determined profile cross section solidifies. This method allows for continuous production of the coiled tubing with a new, high quality in respect of dimensional and shape tolerances on the profile cross section of the coiled tubing. The invention also relates to a device (10) for producing such a coiled tubing.