DE1136818B - Process for the production of a multi-layer plastic hose and compression head for carrying out the process - Google Patents

Process for the production of a multi-layer plastic hose and compression head for carrying out the process

Info

Publication number
DE1136818B
DE1136818B DEA33880A DEA0033880A DE1136818B DE 1136818 B DE1136818 B DE 1136818B DE A33880 A DEA33880 A DE A33880A DE A0033880 A DEA0033880 A DE A0033880A DE 1136818 B DE1136818 B DE 1136818B
Authority
DE
Germany
Prior art keywords
gas
ring nozzles
layers
outlet
press head
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
DEA33880A
Other languages
German (de)
Inventor
Kastulus Utz
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.)
LISSMANN ALKOR WERK
Original Assignee
LISSMANN ALKOR WERK
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 LISSMANN ALKOR WERK filed Critical LISSMANN ALKOR WERK
Priority to DEA33880A priority Critical patent/DE1136818B/en
Priority to DEA34587A priority patent/DE1203452B/en
Publication of DE1136818B publication Critical patent/DE1136818B/en
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion die
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Laminated Bodies (AREA)

Description

Verfahren zur Erzeugung eines mehrschichtigen Kunststoffschlauches und Preßkopf zur Durchführung des Verfahrens Die Erfindung bezieht sich auf ein Verfahren zurErzeugung eines mehrschichtigen Kunststoffschlauches insbesondere eines aus schlauchförmigen Schichten verschiedenen chemischen Aufbaues bestehenden Schlauches, bei dem die einzelnen Schichten aus thermoplastischen Kunststoffen aus zwei oder mehr konzentrisch zueinander gelegenen Ringdüsen ausgepreßt und unmittelbar nach dem Auspressen durch Aneinanderdrücken miteinander verbunden werden. Process for the production of a multilayer plastic hose and press head for carrying out the method. The invention relates to a Method for producing a multilayer plastic hose, in particular one hose consisting of tubular layers of different chemical structure, in which the individual layers of thermoplastics consist of two or more concentric ring nozzles and immediately after be connected to each other after pressing out by pressing them together.

Verfahren dieser Art sind bekannt. Unabhängig davon ist es bekannt, die Oberflächen von Folien aus Kunststoff, die miteinander verbunden werden sollen, einer ihre Aneinanderhaftung erhöhenden Behandlung zu unterwerfen. Zu diesem Zweck sind diese Oberflächen auch schon mit Korona-Entladungen behandelt worden. Processes of this type are known. Regardless, it is known the surfaces of plastic foils that are to be joined together, subject to a treatment that increases their adhesion. To this end these surfaces have already been treated with corona discharges.

Die vorliegende Erfindung löst die Aufgabe der Oberflächenbehandlung bei dem ersterwähnten bekannten Verfahren in besonders einfacher und zweckmäßiger Weise dadurch, daß in dem Raum, den zwei einander benachbarte schlauchförmige Schichten vom Austritt an den Ringdüsen bis zu ihrer Vereinigung miteinander einschließen, ein oxydierendes, aktive oder dipolare Moleküle auf den zu verbindenden Oberflächen der Schichten erzeugendes Gas eingebracht oder in diesem Raum ein solches Gas durch Funkenentladung in einem Hochspannungsfeld erzeugt wird. The present invention solves the problem of surface treatment in the first-mentioned known method in a particularly simple and expedient manner Way in that, in the space, the two adjacent tubular layers from the exit at the ring nozzles to their union with one another, an oxidizing, active or dipolar molecule on the surfaces to be connected the layers generating gas introduced or in this space such a gas through Spark discharge is generated in a high voltage field.

Vorzugsweise wird dem Raum reaktionsfähiges Gas unter Abführung von verbrauchten Gasrückständen und von Reaktionsgasprodukten zugeführt. Preferably, the space is reactive gas with the discharge of used gas residues and supplied by reaction gas products.

Zur Durchführung des erfindungsgemäßen Verfahrens geht man vorzugsweise von einem an sich bekannten Preßkopf aus, bei dem für das gleichzeitige Anpressen mehrerer schlauchförmiger Schichten mindestens zwei Ringdüsen konzentrisch zueinander angeordnet sind und bei dem in dem Bereich zwischen zwei einander benachbarten Ringdüsen mindestens ein Auslaß eines Zuleitungskanals für Gas vorgesehen ist, der dadurch gekennzeichnet ist, daß neben dem wenigstens einen Auslaß des Zuleitungskanals noch ein oder mehrere Auslässe für Gasableitungskanäle angeordnet sind. The method according to the invention is preferably carried out from a known press head, in which for the simultaneous pressing several tubular layers at least two ring nozzles concentric to each other are arranged and in the area between two adjacent ring nozzles at least one outlet of a supply channel for gas is provided, which thereby is characterized in that in addition to the at least one outlet of the supply channel still one or more outlets for gas discharge channels are arranged.

Andererseits oder darüber hinaus kann ein solcher bekannter Preßkopf mit Elektroden versehen sein, die auf den die Ringdüsen begrenzenden Teilen sitzen und zur Erzeugung einer Funkenentladung dienen. On the other hand, or in addition, such a known press head be provided with electrodes that sit on the parts delimiting the ring nozzles and serve to generate a spark discharge.

Das erfindungsgemäße Verfahren und die zu seiner Durchführung dienenden Preßköpfe eignen sich im besonderen Maße zur Verbindung von Kunststoffen verschiedenen chemischen Aufbaues, insbesondere von Polyäthylen, mit andersartigen Hochpolymeren, z. B. aus der Reihe der Polyamide, Polyvinylchloride, Polystyrole, Polykarbonate usw. The method according to the invention and those used to carry it out Press heads are particularly suitable for connecting different plastics chemical structure, especially of polyethylene, with different types of high polymers, z. B. from the range of polyamides, polyvinyl chlorides, polystyrenes, polycarbonates etc.

Die Figur zeigt einen Ringdüsenkopf zur Durchführung des erfindungsgemäßen Verfahrens. Der Kopf weist zwei konzentrische Ringdüsen in einem bestimmten Abstand voneinander auf, aus denen Schlauchfilme austreten. Der innere Schlauch 2 weitet nach bekannter Weise durch Aufblasen mit Luft den äußeren Schlauch 1 mit auf. Die beiden Schläuche vereinigen sich bei 3. Der zwischen den Austrittsöffnungen und der Vereinigung 3 der austretenden Filme entstehende Hohlraum7 wird mit einem oxydierenden Gas gefüllt, das die Oberfläche des Polyäthylenfilmes verändert und dadurch eine feste Verbindung mit dem Kunststoffilm der äußeren Düse bewirkt. The figure shows an annular nozzle head for carrying out the invention Procedure. The head has two concentric ring nozzles at a certain distance from each other, from which tubular films emerge. The inner tube 2 expands in a known manner by inflating with air the outer tube 1 with. the both hoses unite at 3. The between the outlet openings and The cavity 7 resulting from the union 3 of the exiting films becomes with an oxidizing Gas filled, which changes the surface of the polyethylene film and thereby a Fixed connection with the plastic film of the outer nozzle.

Die Einführung des oxydierenden Gases kann dadurch geschehen, daß man durch Kanal 4 oxydierende Gase, z. B. Chlorgas einströmen läßt. Die Reaktionsgasrückstände werden durch einen entsprechend verlaufenden Kanal abgeführt, so daß der Hohlraum 7 immer von reaktionsfähigem Gas durchspült wird. The introduction of the oxidizing gas can be done in that one through channel 4 oxidizing gases, z. B. allows chlorine gas to flow in. The reaction gas residues are discharged through a correspondingly running channel, so that the cavity 7 is always flushed with reactive gas.

Das Chlorgas wirkt in der Hitze (der Kunststoff befindet sich hier ja noch im Schmelzzustand) auf die Oberfläche der beiden Filme ein. Man kann aber auch an dem inneren Teil des Kegels eine isolierte Elektrode 5 und am Zwischenstück zwischen den beiden Ringdüsen eine blanke Gegenelektrode 6 anbringen und Hochspannung anlegen. Die zwischen den beiden Elektroden stattfindende Korona-Entladung im Hochspannungsfeld bewirkt die Entstehung von Ozon, das ebenfalls oxydierend auf die Oberfläche des Kunststoffilmes einwirkt. Der hierzu notwendige Sauerstoff wird durch Kanal 4 zugeführt und die verbrauchten Gasrückstände durch einen entsprechend verlaufenden Kanal abgeführt. Das Reaktionsgas kann durch Bestrahlung mit ultraviolettem Licht oder anderen energiereichen Strahlen aktiviert werden. The chlorine gas works in the heat (the plastic is here yes, still in the melting state) on the surface of the two films. But you can also an insulated electrode 5 on the inner part of the cone and on the intermediate piece Place a bare counter electrode 6 between the two ring nozzles and high voltage invest. The corona discharge taking place between the two electrodes in the high-voltage field causes the formation of ozone, that is also oxidizing to the Acts on the surface of the plastic film. The oxygen required for this is through Channel 4 supplied and the used gas residues through a correspondingly running Channel discharged. The reaction gas can be caused by irradiation with ultraviolet light or other high-energy rays are activated.

Schließlich können beide Methoden gleichzeitig zur Anwendung kommen. After all, both methods can be used at the same time.

Claims (4)

PATENTANSPRÜCHE: 1. Verfahren zur Erzeugung eines mehrschichtigen Kunststoffschlauches, insbesondere eines aus schlauchförmigen Schichten verschiedenen chemischen Aufbaues bestehenden Schlauches, bei dem die einzelnen Schichten aus thermoplastischen Kunststoffen aus zwei oder mehr konzentrisch zueinander gelegenen Ringdüsen ausgepreßt und unmittelbar nach dem Auspressen durch Aneinanderdrücken miteinander verbunden werden, dadurch gekennzeichnet, daß in dem Raum, den zwei einander benachbarte schlauchförmige Schichten vom Austritt an den Ringdüsen bis zu ihrer Vereinigung miteinander einschließen, ein oxydierendes, aktive oder dipolare Moleküle auf den zu verbindenden Oberflächen der Schichten erzeugendes Gas eingebracht oder in diesem Raum ein solches Gas durch Funkenentladung in einem Hochspannungsfeld erzeugt wird. PATENT CLAIMS: 1. Method for producing a multilayer Plastic hose, in particular one of different tubular layers chemical structure of existing hose, in which the individual layers thermoplastics made of two or more concentric to each other Ring nozzles squeezed out and immediately after squeezing out by pressing them together are connected to each other, characterized in that in the room, the two Adjacent tubular layers from the exit at the ring nozzles to to their association with each other include an oxidizing, active or dipolar Molecules generated on the surfaces of the layers to be connected are introduced or in this room such a gas by spark discharge in a high-voltage field is produced. 2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß dem Raum reaktionsfähiges Gas unter Abführung von verbrauchten Gasrück- ständen und von Reaktionsgasprodukten zugeführt wird. 2. The method according to claim 1, characterized in that the space reactive gas with the removal of used gas return stands and of reaction gas products is fed. 3. Preßkopf zur Durchführung des Verfahrens nach Anspruch 1 oder 2, bei dem für das gleichzeitige Anpressen mehrerer schlauchförmiger Schichten mindestens zwei Ringdüsen konzentrisch zueinander angeordnet sind und bei dem in dem Bereich zwischen zwei einander benachbarten Ringdüsen mindestens ein Auslaß eines Zuleitungskanals für Gas vorgesehen ist, dadurch gekennzeichnet, daß neben dem wenigstens einen Auslaß des Zuleitungskanals (4) noch ein oder mehrere Auslässe für Gasableitungskanäle angeordnet sind. 3. Press head for performing the method according to claim 1 or 2, in which for the simultaneous pressing of several tubular layers at least two ring nozzles are arranged concentrically to one another and where in the area between two adjacent ring nozzles at least one outlet of a feed channel is provided for gas, characterized in that in addition to the at least one outlet of the supply channel (4) one or more outlets for gas discharge channels are arranged. 4. Preßkopf zur Durchführung des Verfahrens nach Anspruch 1 oder 2, bei dem für das gleichzeitige Anpressen mehrerer schlauchförmiger Schichten mindestens zwei Ringdüsen konzentrisch zueinander angeordnet sind und bei dem in dem Bereich zwischen zwei einander benachbarten Ringdüsen mindestens ein Auslaß eines Zuleitungskanals für Gas vorgesehen ist, oder Preßkopf nach Anspruch 3, dadurch gekennzeichnet, daß auf den die Ringdüsen begrenzenden Teilen Elektroden (5, 6) zur Erzeugung einer Funkenentladung vorgesehen sind. 4. Press head for performing the method according to claim 1 or 2, in which for the simultaneous pressing of several tubular layers at least two ring nozzles are arranged concentrically to one another and where in the area between two adjacent ring nozzles at least one outlet of a feed channel for gas is provided, or press head according to claim 3, characterized in that on the parts delimiting the ring nozzles electrodes (5, 6) for generating a Spark discharge are provided. In Betracht gezogene Druckschriften: Deutsche Auslegeschrift Nr. 1 028325; belgische Patentschrift Nr. 531 375; britische Patentschrift Nr. 722 875; französische Patentschrift Nr. 1 065 670; USA.-Patentscbriften Nr. 2 753 596, 2715 077. Documents considered: German Auslegeschrift No. 1 028325; Belgian Patent No. 531,375; British Patent No. 722,875; French Patent No. 1,065,670; U.S. Patent Papers No. 2,753,596, 2715 077.
DEA33880A 1960-02-03 1960-02-03 Process for the production of a multi-layer plastic hose and compression head for carrying out the process Pending DE1136818B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DEA33880A DE1136818B (en) 1960-02-03 1960-02-03 Process for the production of a multi-layer plastic hose and compression head for carrying out the process
DEA34587A DE1203452B (en) 1960-02-03 1960-05-06 Process for the production of a multilayer plastic hose

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEA33880A DE1136818B (en) 1960-02-03 1960-02-03 Process for the production of a multi-layer plastic hose and compression head for carrying out the process

Publications (1)

Publication Number Publication Date
DE1136818B true DE1136818B (en) 1962-09-20

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1181396B (en) * 1962-12-21 1964-11-12 Feldmuehle Ag Process for the production of a multilayer plastic hose
DE1259092B (en) * 1964-06-09 1968-01-18 Grace W R & Co Process for the production of a single-layer hose made of thermoplastic synthetic material with reduced oxygen permeability
DE1279932B (en) * 1962-11-01 1968-10-10 Kalle Ag Process for the production of stretched plastic films
DE1296365B (en) * 1964-01-24 1969-05-29 Lissmann Alkor Werk Press head for the production of multilayer composite films

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531375A (en) * 1900-01-01
FR1065670A (en) * 1952-08-07 1954-05-28 Traver Corp Improved method and device for treating non-adherent surfaces to make them adherent
GB722875A (en) * 1952-02-09 1955-02-02 Visking Corp Apparatus for and method of treating plastic film
US2715077A (en) * 1952-11-29 1955-08-09 Du Pont Process for treating polyethylene structures
US2753596A (en) * 1952-06-07 1956-07-10 Plax Corp Method and apparatus for making plastic tubing
DE1028325B (en) * 1954-11-13 1958-04-17 Lissmann Alkor Werk Method and device for the production of tubular films

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE531375A (en) * 1900-01-01
GB722875A (en) * 1952-02-09 1955-02-02 Visking Corp Apparatus for and method of treating plastic film
US2753596A (en) * 1952-06-07 1956-07-10 Plax Corp Method and apparatus for making plastic tubing
FR1065670A (en) * 1952-08-07 1954-05-28 Traver Corp Improved method and device for treating non-adherent surfaces to make them adherent
US2715077A (en) * 1952-11-29 1955-08-09 Du Pont Process for treating polyethylene structures
DE1028325B (en) * 1954-11-13 1958-04-17 Lissmann Alkor Werk Method and device for the production of tubular films

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1279932B (en) * 1962-11-01 1968-10-10 Kalle Ag Process for the production of stretched plastic films
DE1181396B (en) * 1962-12-21 1964-11-12 Feldmuehle Ag Process for the production of a multilayer plastic hose
DE1296365B (en) * 1964-01-24 1969-05-29 Lissmann Alkor Werk Press head for the production of multilayer composite films
DE1259092B (en) * 1964-06-09 1968-01-18 Grace W R & Co Process for the production of a single-layer hose made of thermoplastic synthetic material with reduced oxygen permeability

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