DE1291896B - Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material - Google Patents

Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material

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Publication number
DE1291896B
DE1291896B DEB84147A DEB0084147A DE1291896B DE 1291896 B DE1291896 B DE 1291896B DE B84147 A DEB84147 A DE B84147A DE B0084147 A DEB0084147 A DE B0084147A DE 1291896 B DE1291896 B DE 1291896B
Authority
DE
Germany
Prior art keywords
calibration
cooled
calibration nozzle
thermoplastic material
profile
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
DEB84147A
Other languages
German (de)
Inventor
Henn Werner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BUERKLE KG KEHLLEISTENFABRIK
Original Assignee
BUERKLE KG KEHLLEISTENFABRIK
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by BUERKLE KG KEHLLEISTENFABRIK filed Critical BUERKLE KG KEHLLEISTENFABRIK
Priority to DEB84147A priority Critical patent/DE1291896B/en
Publication of DE1291896B publication Critical patent/DE1291896B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/903—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/905—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article using wet calibration, i.e. in a quenching tank
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9135—Cooling of flat articles, e.g. using specially adapted supporting means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material

Description

Gegenstand der Erfindung ist eine Kalibriereinrichtung, wie sie zur Fertigung von Profilstäben, Leisten u. dgl. in kontinuierlich arbeitenden Strangpreßanlagen benötigt wird. The invention relates to a calibration device as used for Production of profile bars, strips and the like in continuously operating extrusion plants is needed.

Es ist in der Extrudiertechnik bekannt, daß die extrudierten Erzeugnisse, wie Profilstäbe, Leisten u. dgl. nicht gerade aus der Kalibrierung austreten, sondern ihre Achse mehr oder weniger gegen die ideelle Achse geneigt ist. It is known in the extrusion technology that the extruded products, such as profile bars, strips and the like do not just emerge from the calibration, but its axis is more or less inclined to the ideal axis.

Dieses Verhalten ist durch folgende Verfahrensumstände begründet. Zunächst sei jedoch eine übliche Anlage, wie sie in A b b. 1 dargestellt ist, beschrieben. This behavior is justified by the following procedural circumstances. First, however, is a common system, as shown in A b b. 1 is shown, described.

Die im Extruder 1 plastizierte Strangpreßmasse wird durch die Schnecke dem Spritzwerkzeug 2 zugeführt. Das Spritzwerkzeug hat den Querschnitt des zu fertigenden Erzeugnisses, wobei Schwindung oder Schrumpfung durch entsprechende Maßzugaben berücksichtigt ist. Bei besonders schwierig zu verarbeitenden thermoplastischen Kunststoffen, wie z. B. The extruded material plasticized in the extruder 1 is passed through the screw fed to the injection molding tool 2. The injection molding tool has the cross-section of the one to be manufactured Product, whereby shrinkage or shrinkage is taken into account by appropriate dimensional allowances is. For thermoplastics that are particularly difficult to process, such as z. B.

Acrylnitril-Butadien-Styrol-Polymerisaten und hochmolekularen Polyolefinen oder bei solchen Erzeugnissen, bei denen es auf genaue Herstellung der Außenkontur des Profils ankommt, ist es bekannt, unmittelbar anschließend an das Werkzeug eine Kalibriervorrichtung 3 anzuordnen, in die der noch warme Werkstoff einläuft und in ihr durch starken Wärmeentzug eingefroren und exakt auf Maß gebracht wird. Aus diesem Grund müssen solche Kalibriervorrichtungen sehr intensiv gekühlt werden, wozu üblicherweise die sogenannte Kalibrierdüse mit einem rohrförmigen Mantel umgeben wird, so daß dadurch ein Raum um die Kalibrierdüse entsteht, der von der Kühlflüssigkeit durchflossen wird. Es sind auch Kalibrierdüsen bekannt, bei denen um den Kalibrierquerschnitt achsparallele Bohrungen angeordnet sind, die zur Kühlmittelführung und damit zur Wärmeabfuhr dienen.Acrylonitrile-butadiene-styrene polymers and high molecular weight polyolefins or for those products that require precise production of the outer contour of the profile arrives, it is known to immediately follow the tool one To arrange calibration device 3, into which the still warm material enters and is frozen in it by strong heat extraction and brought exactly to size. the end For this reason, such calibration devices must be cooled very intensively, For this purpose, the so-called calibration nozzle is usually surrounded by a tubular jacket so that a space is created around the calibration nozzle, which is covered by the cooling liquid is traversed. There are also calibration nozzles known in which around the calibration cross-section axially parallel bores are arranged to guide the coolant and thus to Serve heat dissipation.

Anschließend an diese Kalibriervorrichtung durchläuft der Profilstab üblicherweise eine zweite Kalibrierung 4, - auf die Notwendigkeit und die Wirkung solcher Nachkalibrierungen wird weiter unten eingegangen, im Anschluß daran die Kühiwanne 5 und darauf wird er von der Abzugsmaschine 6 erfaßt und von der Ablängsäge auf entsprechende Fertigmaße geschnitten. The profile rod then passes through this calibration device usually a second calibration 4, - on the necessity and the effect such recalibrations will be discussed further below, followed by the Kühiwanne 5 and then it is detected by the haul-off machine 6 and by the cross-cut saw cut to the appropriate finished dimensions.

Bedingt durch die schwierigen rheologischen Verhältnisse im Extruder sind die Fließgeschwindigkeiten im Innern des Werkzeuges nicht an allen Stellen gleich, so daß am Austrittsquerschnitt des Werkzeuges pro Flächeneinheit nicht die gleiche Masse zur Verfügung steht. Da aber die Abzugsmaschine mit konstanter Geschwindigkeit abzieht, schnürt sich die Wandung des Profilstabes am Werkzeugaustritt ein. Due to the difficult rheological conditions in the extruder the flow velocities inside the tool are not at all points equal, so that at the exit cross-section of the tool per unit area not the same mass is available. But there the haul-off machine at constant speed pulls off, the wall of the profile rod constricts at the tool outlet.

Diese Einschnürung kann sich selbst bei normalen Verhältnissen bis zu mehreren Millimetern in das Spritzwerlczeug hinein fortpflanzen.This constriction can even up in normal circumstances propagate several millimeters into the spray tool.

Gelangt nun dieser Stab mit variierender Wandstärke in die Kalibrierung, so ergeben sich folgende Verhältnisse: Bei den üblichen Kalibriereinrichtungen, wie sie oben beschrieben sind, wird dem Stab pro Oberflächeneinheit etwa die gleiche Wärmemenge pro Zeiteinheit entzogen. Bei unterschiedlichen Wandstärken des Profilstabes werden dadurch Spannungen eingefroren, die bedingen, daß der Stab sich verwirft. In der Praxis kommen sogar Stäbe vor, die aussehen, als seien sie unter Torsionskräften verdreht eingefroren. If this rod with varying wall thickness is now in the calibration, this results in the following conditions: With the usual calibration devices, as described above, the rod per unit surface area becomes about the same Amount of heat withdrawn per unit of time. With different wall thicknesses of the profile bar this freezes tensions that cause the rod to warp. In practice there are even bars that look as if they are under torsional forces frozen twisted.

Um diesem Umstand zu begegnen, wird, wie schon erwähnt, unmittelbar an die Kalibrierung 3 eine zweite Kalibrierung 4 gesetzt, wobei jedoch die Achsen beider Kalibrierungen gegeneinander abgewickelt werden können. Auf diese Weise soll den eingefrorenen Spannungen durch Kaltverformung unterhalb der Eingefriertemperatur Reckspannungen überlagert werden, die den eingefrorenen Spannungen entgegenwirken, so daß der Stab bei Raumtemperatur gerade ist. Neben der Verwendung einer zweiten Kalibrierung ist es auch üblich, Ableitrollen, Ableitbügel u. dgl. zu verwenden, um den Folgen der eingefrorenen Spannungen zu begegnen. Diese Methoden des Spannungsausgleichs haben den großen Nachteil, daß es unmöglich ist, einen bleibenden Ausgleich zu bewirken, so daß sich die Stäbe im Verwendungsbereich dennoch verwerfen bzw. verziehen. Diese Gefahr ist bei Rollädenstäben besonders groß, weil sich hier durch Sonneneinstrahlung erhebliche Temperaturen (bis 600 C) ergeben können.In order to counter this circumstance, we will, as before mentioned, immediately a second calibration 4 is set to calibration 3, but with the axes both calibrations can be processed against each other. This is supposed to the frozen stresses due to cold working below the freezing temperature Stretching stresses are superimposed, which counteract the frozen stresses, so that the rod is straight at room temperature. In addition to using a second Calibration, it is also common to use deflection rollers, deflection brackets and the like, to counter the consequences of frozen tensions. These methods of balancing tension have the great disadvantage that it is impossible to achieve a permanent balance, so that the rods are nevertheless warped or warped in the area of use. These The danger is particularly great with roller shutter slats because they are exposed to sunlight can result in considerable temperatures (up to 600 C).

Ein weiterer Nachteil ist darin begründet, daß alle Nachfolgeaggregate, wie Kühlwanne, Abzugsmaschine, Ablängsäge usw., dem Biegewinkel angepaßt sein müssen. Insbesondere die Anpassung an veränderte rheologische Verhältnisse im Extruder ist in dieser Hinsicht sehr schwierig. Another disadvantage is that all downstream units, such as cooling trough, haul-off machine, cross-cut saw, etc., must be adapted to the bending angle. In particular, the adaptation to changed rheological conditions in the extruder is very difficult in this regard.

Diese Nachteile werden bei der gekühlten Kalibrierdüse nach der Erfindung vermieden. Dazu ist eine gekühlte Kalibrierdüse in Strangpreßanlagen für Profile aus thermoplastischem Kunststoff mit um den Kalibrierquerschnitt angeordneten, zur Achse der Kalibrierdüse parallelen Bohrungen, Kanälen u. dgl., zur Kühlmittelführung erfindungsgemäß so ausgebildet, daß die Bohrungen mit voneinander unterschiedlicher Intensität kühlbar sind. These disadvantages become apparent in the case of the cooled calibration nozzle according to the invention avoided. For this purpose, a cooled calibration nozzle is used in extrusion presses for profiles Made of thermoplastic material with arranged around the calibration cross-section, for Axis of the calibration nozzle parallel bores, channels and the like, for the coolant flow according to the invention designed so that the bores with mutually different Intensity can be cooled.

Die Erfindung wird anschließend an Hand einer besonders geeigneten Konstruktion erläutert. The invention is then based on a particularly suitable one Construction explained.

A b b. 2 zeigt in einer schematischen Skizze eine Kalibrierdüse nach der Erfindung im Längsschnitt und Abb. 3 in einer Ansicht in Achsrichtung. A b b. 2 shows in a schematic sketch a calibration nozzle according to FIG of the invention in longitudinal section and Fig. 3 in a view in the axial direction.

Die Kalibrierdüse besteht aus zwei Hälften 8 und 9, in denen dem zu fertigenden Profil entsprechende Einfräsungen vorgesehen sind, so daß sich in zusammengebautem Zustand der gewünschte Profilquerschnitt ergibt. In geringem Abstand von der inneren Oberfläche 13 der Kalibrierdüse sind rings um den Kalibrierquerschnitt achsparallele Bohrungen 12 angebracht. Jede dieser Bohrungen ist Teil eines separaten Kühlmittelkreislaufes mit entsprechenden Meß- und Regelgeräten. Auf diese Weise ist es möglich, die Oberfläche 13 über ihren Umfang durch Erhöhung oder Verminderung des Kühlmitteldurchsatzes mit verschiedener Intensität zu kühlen und dadurch dem zu fertigenden Profil mehr oder weniger intensiv Wärme zu entziehen. Dieses wird ereicht, indem jede Bohrung 12 Teil eines separaten Kühlkreislaufes mit Temperaturmesserll und Drosselgerät 10 versehen ist. Dadurch besteht die Möglichkeit, das Profil trotz unterschiedlicher Wandstärke so zu kühlen, daß er die Kalibrierdüse mit vollkommen homogenem Temperaturfeld verläßt, d. h., es besteht innerhalb des Profils keinerlei Temperaturgefälle, so daß auch keine Temperaturspannungen entstehen, die das Profil verwerfen oder verziehen können. The calibration nozzle consists of two halves 8 and 9, in which the to be manufactured profile appropriate millings are provided so that in assembled condition results in the desired profile cross-section. At a short distance of the inner surface 13 of the calibration nozzle are all around the calibration cross-section axially parallel holes 12 attached. Each of these holes is part of a separate one Coolant circuit with appropriate measuring and control devices. In this way it is possible to increase or decrease the surface 13 over its circumference of the coolant throughput with different intensities and thereby the to be produced profile to withdraw more or less intense heat. This will achieved by making each bore 12 part of a separate cooling circuit with temperature meter and throttle device 10 is provided. This gives the option of using the profile in spite of different wall thickness to cool so that he the calibration nozzle with perfectly leaves a homogeneous temperature field, d. that is, there is nothing within the profile Temperature gradient, so that there are no temperature stresses that affect the profile discard or forgive.

Ein weiterer Vorteil der Erfindung ist darin zu sehen, daß die Anpassung an veränderte Verhältnisse sehr rasch erfolgt, was insbesondere dann ins Gewicht fällt, wenn die Anlage bei Materialwechsel, Schichtbeginn oder Störungen neu angefahren werden muß. Another advantage of the invention is that the adaptation changes in circumstances takes place very quickly, which is particularly important falls, if the system is restarted after a material change, the start of a shift or malfunctions must become.

Die erfindungsgemäße Kalibriereinrichtung ist besonders geeignet für den vollautomatischen Betrieb. The calibration device according to the invention is particularly suitable for fully automatic operation.

In solchen Anlagen wird die Abweichung der Achse des Profils von der ideellen Achse selbsttätig gemessen und das Messergebnis in elektrische Analogwerte umgewandelt und dadurch die Drosselventile im Kühlmittelkreislauf gesteuert.In such systems, the deviation of the axis of the profile from the ideal axis measured automatically and the measurement result in electrical analog values converted and thereby controlled the throttle valves in the coolant circuit.

Claims (4)

Patentansprüche: 1. Gekühlte Kalibrierdüse in Strangpreßanlagen für Profile aus thermoplastischem Kunststoff mit um den Kalibrierquerschnitt angeordneten, zur Achse der Kalibrierdüse parallen Bohrungen, Kanälen u. dgl. zur Kühlmittelführung, d a - durch gekennzeichnet, daß diese Bohrungen (12) mit voneinander unterschiedlicher Intensität kühlbar sind. Claims: 1. Cooled calibration nozzle in extrusion plants for Profiles made of thermoplastic material with arranged around the calibration cross-section, bores, channels, etc. parallel to the axis of the calibration nozzle for the coolant flow, there - characterized in that these bores (12) are different from one another Intensity can be cooled. 2. Gekühlte Kalibrierdüse nach Anspruch 1, dadurch gekennzeichnet, daß jede Bohrung (12) Teil eines separaten Kühlkreislaufes mit Temperaturmesser (11) und Drosselgerät (10) ist. 2. Cooled calibration nozzle according to claim 1, characterized in that that each bore (12) is part of a separate cooling circuit with a temperature meter (11) and throttle device (10). 3. Gekühlte Kalibrierdüse nach Anspruch 1 und 2, dadurch gekennzeichnet, daß mehrere nebeneinanderliegende Bohrungen (12) zusammen an einen Kühlkreislauf angeschlossen sind. 3. Cooled calibration nozzle according to claim 1 and 2, characterized in that that several adjacent bores (12) together in a cooling circuit are connected. 4. Gekühlte Kalibrierdüse nach Anspruch 1 bis 3, dadurch gekennzeichnet, daß die Drosselgeräte in den Kühlkreisläufen in Abhängigkeit von der Abweichung der Profil achse vom gewünschten Verlauf der Profilachse steuerbar sind 4. Cooled calibration nozzle according to claim 1 to 3, characterized in that that the throttle devices in the cooling circuits depending on the deviation the profile axis can be controlled by the desired course of the profile axis
DEB84147A 1965-10-18 1965-10-18 Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material Pending DE1291896B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB84147A DE1291896B (en) 1965-10-18 1965-10-18 Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material

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Application Number Priority Date Filing Date Title
DEB84147A DE1291896B (en) 1965-10-18 1965-10-18 Cooled calibration nozzle in extrusion systems for profiles made of thermoplastic material

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DE1291896B true DE1291896B (en) 1969-04-03

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028538A1 (en) * 1970-06-10 1971-12-16 Dynamit Nobel Ag Method and device for extrusion of hollow bodies
FR2320178A1 (en) * 1975-08-07 1977-03-04 Dynamit Nobel Ag CALIBRATION PROCESS OF BUDDIN, LAMINATE AND CO-EXTRUDED PROFILES, BASED ON THERMOPLASTIC SYNTHETIC MATERIALS
DE2809386A1 (en) * 1978-03-04 1979-09-06 Dynamit Nobel Ag METHOD AND DEVICE FOR CALIBRATING PROFILES MADE OF THERMOPLASTIC PLASTIC BY USING VACUUM PRESSURE
NL8902778A (en) * 1988-11-18 1990-06-18 Cincinnati Milacron Austria METHOD FOR MANUFACTURING TUBES AND PROFILES FROM THERMOPLASTIC PLASTIC MASSES
WO2012069642A3 (en) * 2010-11-25 2012-10-26 Greiner Tool.Tec Gmbh Apparatus and process for the targeted deformation of an extruded plastic profile
WO2014041008A3 (en) * 2012-09-13 2014-06-19 Greiner Tool.Tec Gmbh Calibration device and method, and tank calibrator for profile extrusion

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184941B (en) * 1962-07-09 1965-01-07 Bayer Ag Calibration device for the production of plastic profiles

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1184941B (en) * 1962-07-09 1965-01-07 Bayer Ag Calibration device for the production of plastic profiles

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028538A1 (en) * 1970-06-10 1971-12-16 Dynamit Nobel Ag Method and device for extrusion of hollow bodies
FR2320178A1 (en) * 1975-08-07 1977-03-04 Dynamit Nobel Ag CALIBRATION PROCESS OF BUDDIN, LAMINATE AND CO-EXTRUDED PROFILES, BASED ON THERMOPLASTIC SYNTHETIC MATERIALS
DE2809386A1 (en) * 1978-03-04 1979-09-06 Dynamit Nobel Ag METHOD AND DEVICE FOR CALIBRATING PROFILES MADE OF THERMOPLASTIC PLASTIC BY USING VACUUM PRESSURE
US4468369A (en) * 1978-03-04 1984-08-28 Dynamit Nobel Aktiengesellschaft Process for the vacuum calibration of profiled articles made of thermoplastic synthetic resin
NL8902778A (en) * 1988-11-18 1990-06-18 Cincinnati Milacron Austria METHOD FOR MANUFACTURING TUBES AND PROFILES FROM THERMOPLASTIC PLASTIC MASSES
WO2012069642A3 (en) * 2010-11-25 2012-10-26 Greiner Tool.Tec Gmbh Apparatus and process for the targeted deformation of an extruded plastic profile
WO2014041008A3 (en) * 2012-09-13 2014-06-19 Greiner Tool.Tec Gmbh Calibration device and method, and tank calibrator for profile extrusion
EP2895312A2 (en) * 2012-09-13 2015-07-22 Greiner Tool.Tec GmbH Calibration device and method, and tank calibrator for profile extrusion
US10286589B2 (en) 2012-09-13 2019-05-14 Greiner Tool.Tec Gmbh Calibration device and method as well as a tank calibrator for profile extrusion
EA035714B1 (en) * 2012-09-13 2020-07-29 Грайнер Тул.Тек Гмбх Calibration device and method, and tank calibrator for profile extrusion
EP2895312B1 (en) * 2012-09-13 2021-06-30 Greiner Tool.Tec GmbH Calibration device and method for profile extrusion

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