MICRO-EXTRUSION LINE

The invention refers to a micro-extrusion line that comprises a single screw ( 2 ) micro-extruder ( 1 ), a die ( 7 ), a cooling bath ( 17 ) and a haul-off ( 19 ), which together enables the manufacture of extruded profiles from small amounts of raw material. The rotation of the micro-extruder screw,...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	MOREIRA MACHADO COSTA, PEDRO, ANTONIO, COLACO GOMES COVAS, JOSE, ANTONIO
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The invention refers to a micro-extrusion line that comprises a single screw ( 2 ) micro-extruder ( 1 ), a die ( 7 ), a cooling bath ( 17 ) and a haul-off ( 19 ), which together enables the manufacture of extruded profiles from small amounts of raw material. The rotation of the micro-extruder screw, together with the high temperatures created by the heater bands, produces the conveying, melting, mixing and pumping of the material through the die. The extrudate is cooled down in a bath containing a cooling liquid and winded in a coil ( 19 ), which has a linear speed higher than that of the extrusion, thus enabling the control of the extrudate cross-section.