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US 11,884,031 B2Granted
Method for producing an extrudate
Assignee9T Labs AG
InventorsMartin Eichenhofer, Giovanni Cavolina, Chester Houwink
Life of this patent
Estimating the term…
Abstract
Aspects of the disclosure relate to methods and systems for producing a preferably strand-like extrudate.
Claims21
A method for producing an extrudate, the method comprising:
- introducing a crude extrudate into a pultrusion unit;
- deforming the crude extrudate in the pultrusion unit wherein, during movement of the crude extrudate through a pultrusion channel of the pultrusion unit, an outer side of the crude extrudate rests on at least one shaping wall of the pultrusion unit;
- discharging the deformed crude extrudate from the pultrusion unit;
- introducing the crude extrudate discharged from the pultrusion unit into an extrusion unit;
- and
- deforming the crude extrudate in the extrusion unit and discharging the crude extrudate that has been reshaped to form the extrudate from an opening of the extrusion unit;
- wherein during movement of the crude extrudate through the pultrusion channel, in a cross-section through the crude extrudate perpendicular to a movement direction of the crude extrudate in the pultrusion channel, a first portion of the outer side of the crude extrudate rests on at least one shaping wall of the pultrusion channel, and a remaining second portion of the outer side of the crude extrudate faces an open side of the pultrusion channel, and
- in a section through the crude extrudate perpendicular to the movement direction of the crude extrudate in the pultrusion channel, the outer side of the crude extrudate rests on at least one shaping wall of the pultrusion channel during movement through the pultrusion unit, and a distance between a first shaping wall and a second shaping wall of the pultrusion channel is varied perpendicular to the movement direction of the crude extrudate in the pultrusion channel, so that a cross-sectional area available to the crude extrudate between the first and second shaping wall in the pultrusion channel is varied,
- wherein the crude extrudate is deflected by at least one roller at an end of the pultrusion unit exerting a force on the crude extrudate in a direction from the outer side towards the shaping wall so that during the discharging, a tensile force is applied to the crude extrudate so that fibers in the pultrusion channel have a tensile force in the pultrusion unit, and so that during the discharging, the crude extrudate is oriented at an angle between 20° and 80° to a plane perpendicular to the movement direction of the crude extrudate in the pultrusion channel.
6 more elements
A method for producing an extrudate, the method comprising:
- introducing a crude extrudate into a pultrusion unit;
- deforming the crude extrudate in the pultrusion unit wherein, during movement of the crude extrudate through a pultrusion channel of the pultrusion unit, an outer side of the crude extrudate rests on at least one shaping wall of the pultrusion unit;
- discharging the deformed crude extrudate from the pultrusion unit;
- introducing the crude extrudate discharged from the pultrusion unit into an extrusion unit;
- and
- deforming the crude extrudate in the extrusion unit and discharging the crude extrudate that has been reshaped to form the extrudate from an opening of the extrusion unit;
- wherein during movement of the crude extrudate through the protrusion channel, in a cross-section through the crude extrudate perpendicular to a movement direction of the crude extrudate in the pultrusion channel, the outer side of the crude extrudate rests on at least one shaping wall of the pultrusion channel and a remaining second portion of the outer side of the crude extrudate faces an open side of the pultrusion channel, and wherein a distance between a first shaping wall and a second shaping wall of the at least one shaping wall is varied perpendicular to the movement direction of the crude extrudate in the pultrusion channel, so that a cross-sectional area available to the crude extrudate between the first and second shaping wall in the pultrusion channel is varied;
- further wherein the crude extrudate is deflected by at least one roller at an end of the pultrusion unit exerting a force on the crude extrudate in a direction from the outer side towards the shaping wall so that during the discharging, a tensile force is applied to the crude extrudate so that fibres in the pultrusion channel have a tensile force in the pultrusion unit, and so that during the discharging, the crude extrudate is oriented at an angle between 20° and 80° to a plane perpendicular to the movement direction of the crude extrudate in the pultrusion channel.
5 more elements
Dependencies are inferred from the claim text.