DE9203999U1 - Device for flexible connection of a thermoplastic pipe - Google Patents

Device for flexible connection of a thermoplastic pipe

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Publication number
DE9203999U1
DE9203999U1 DE9203999U DE9203999U DE9203999U1 DE 9203999 U1 DE9203999 U1 DE 9203999U1 DE 9203999 U DE9203999 U DE 9203999U DE 9203999 U DE9203999 U DE 9203999U DE 9203999 U1 DE9203999 U1 DE 9203999U1
Authority
DE
Germany
Prior art keywords
pipe
elastomer
thermoplastic
hose
pipeline according
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.)
Expired - Lifetime
Application number
DE9203999U
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German (de)
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.)
Deutsche Tecalemit GmbH
Original Assignee
Deutsche Tecalemit GmbH
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 Deutsche Tecalemit GmbH filed Critical Deutsche Tecalemit GmbH
Priority to DE9203999U priority Critical patent/DE9203999U1/en
Publication of DE9203999U1 publication Critical patent/DE9203999U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/01General aspects dealing with the joint area or with the area to be joined
    • B29C66/05Particular design of joint configurations
    • B29C66/10Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112Single lapped joints
    • B29C66/1122Single lap to lap joints, i.e. overlap joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483Reactive adhesives, e.g. chemically curing adhesives
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5221Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/50General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/52Joining tubular articles, bars or profiled elements
    • B29C66/522Joining tubular articles
    • B29C66/5229Joining tubular articles involving the use of a socket
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B29C66/712General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined the composition of one of the parts to be joined being different from the composition of the other part
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/73General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/739General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/7392General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic
    • B29C66/73921General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the material of at least one of the parts being a thermoplastic characterised by the materials of both parts being thermoplastics
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02Welded joints; Adhesive joints
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00General aspects of processes or apparatus for joining preformed parts
    • B29C66/70General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00Use of unspecified rubbers as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2101/00Use of unspecified macromolecular compounds as moulding material
    • B29K2101/12Thermoplastic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/005Hoses, i.e. flexible

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Description

Geschäftsführer: E. Barrie Stephens C. Eng. Martyn Robert Champ ("jtLJ I ^CHE Wolfgang Schön, Dipl.-Betriebswirt Managing Directors: E. Barrie Stephens C. Eng. Martyn Robert Champ ("jtLJ I ^CHE Wolfgang Schön, Dipl.-Betriebswirt

^pjw^ j^ &mgr; ^i^ji M^W Klaus Straszewski, Dipl.-Ingenieur^p jw ^ j^ μg; ^i ^ji M^W Klaus Straszewski, Dipl.-Ingenieur

■ Kü^^^^UEB Il I Amtsgericht Bielefeld HRB 7168■ Kü^^^^UEB Il I District Court Bielefeld HRB 7168

Deutsche Tecalemit GmbH Postf. 12 01 28 4800 Bielefeld 12 · K.-Oldewurtel-Str. 40 Telefon (05 21) 40 49-0 · Telefax (05 21) 40 49 305 Deutsche Tecalemit GmbH Postf. 12 01 28 4800 Bielefeld 12 · K.-Oldewurtel-Str. 40Telephone (05 21) 40 49-0 · Fax (05 21) 40 49 305

IhrZeichen IhrSchreibenvorn UnsereZeichen DatumYour reference Your letter in front Our reference Date

Sch/kh 19.03.92Sch/kh 19.03.92

074/337074/337

Einrichtung zum flexiblen AnschlußFacility for flexible connection

eines thermoplastischen Kunststoffrohresa thermoplastic pipe &PSgr;&PSgr;

Die Erfindung betrifft eine Kunststoffrohrleitung, die aus einem thermoplastischen Kunststoff besteht und flexible Elemente aus einem Elastomer aufweist, welche mit dem thermoplastischen Anteil einen stoffschlüssigen Verbund darstellen.The invention relates to a plastic pipeline which consists of a thermoplastic material and has flexible elements made of an elastomer, which form a material bond with the thermoplastic component.

Kunststoffrohrleitungen, wie sie in der Automobilindustrie Anwendung finden, bestehen oft aus thermoplastischen Rohren in Verbindung mit Elastomerschläuchen. Diese Elastomerschläuche haben den Zweck, eine Montage von Hand auf einen Stutzen eines Aggregates, wie z.B. einen Tank, zu ermöglichen. Ansonsten weisen solche Leitungen alle bekannten Vorteile von thermoplastischen Rohren auf. Bei Kraftstoffleitungen, bei denen meistens die Thermoplaste Polyamid 11 und Polyamid 12 Verwendung finden, sind die hervorragende Beständigkeit gegen Kraftstoffe, sowie die guten Permeabilitätseigenschaften und eine ausgezeichnete Schlagzähigkeit die Auswahlkriterien .Plastic pipelines, as used in the automotive industry, often consist of thermoplastic pipes combined with elastomer hoses. The purpose of these elastomer hoses is to enable manual assembly onto a nozzle of a unit, such as a tank. Otherwise, such lines have all the known advantages of thermoplastic pipes. In the case of fuel lines, where the thermoplastics polyamide 11 and polyamide 12 are mostly used, the selection criteria are the excellent resistance to fuels, as well as the good permeability properties and excellent impact strength.

Blatt 2 Datum 19.03.92Sheet 2 Date 19.03.92

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Die Verbindung zwischen dem thermoplastischen Rohr und dem Elastomerschlauch wird bisher durch das Eindrücken einer Doppelbundhülse oder ähnlichem in das thermoplatische Rohr mit dem Ergebnis, daß sich an der Rohraußenwandung eine Kontur bildet und anschließendem Aufschieben des Elastomerschlauches über das thermoplatische Rohr, hergestellt. Gesichert wird diese Verbindung durch das zusätzliche Aufbringen einer Schlauchschelle. Neben dem Montageaufwand bringt diese Verbindungstechnologie eine potentielle Leckagestelle mit sich. Zu einem können Montagefehler, wie z.B. eine nicht genügende AufschublänqeThe connection between the thermoplastic pipe and the elastomer hose is currently made by pressing a double collar sleeve or similar into the thermoplastic pipe, resulting in a contour being formed on the outside wall of the pipe and then pushing the elastomer hose over the thermoplastic pipe. This connection is secured by the additional application of a hose clamp. In addition to the assembly effort, this connection technology also brings with it a potential leak point. Assembly errors, such as an insufficient length of push-on, can lead to

des Elastomerschlauches auf das thermoplastische Rohr *of the elastomer hose onto the thermoplastic pipe *

oder eine nicht korrekt montierte Schlauchschelle eine Undichtigkeit hervorrufen oder die Verbindung sogar vollständig lösen. Weiterhin wurde festgestellt, daß selbst bei einer vorschriftsmäßig montierten Leitung eine gegenüber anderen Verbindungstechnologien, wie z.B. Schraubverbindungen und Verbindungen mit "Tannenbaum1! Profilen, verhältnismäßig hohe Leckrate auftritt. Die Gründe hierfür liegen in den hohen Fertigungstoleranzen der Elastomerschläuche sowie in der Tatsache, daß die Schlauchschellen nicht vollkommen rund anziehen, sondern immer eine Ovalität aufweisen, sodaß sich "Leckagekanäle" bilden.or an incorrectly fitted hose clamp can cause a leak or even completely loosen the connection. It was also found that even with a correctly fitted line, a relatively high leak rate occurs compared to other connection technologies, such as screw connections and connections with "Christmas tree 1 ! profiles". The reasons for this lie in the high manufacturing tolerances of the elastomer hoses and in the fact that the hose clamps do not tighten completely round, but always have an oval shape, so that "leakage channels" form.

Ausgehend von diesem bekannten Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine Kunststoffrohrleitung so auszubilden, daß zwischen dem thermoplastischen Rohr und dem flexiblen Elastomerelement eine vollkommen dichte und sichere Verbindung hergestellt wird.Based on this known state of the art, the invention is based on the object of designing a plastic pipeline in such a way that a completely tight and secure connection is established between the thermoplastic pipe and the flexible elastomer element.

Blatt 3 Datum 19.03.92Sheet 3 Date 19.03.92

074/337074/337

Erfüllt wird dieses durch die Anwendung einer sogenannten Hart-Weich-Verbindungstechnologie. Das vorher hergestellte thermoplastische Rohr wird in eine Elastomer-Verarbeitungsmaschine eingelegt und der Elastomeranteil wird an das thermoplastische Rohr angespritzt. Anschließend wird das Kompletteil einem Vulkanisationsprozeß zugeführt. So entsteht eine stoffschlüssige und damit dichte und unlösbare Verbindung zwischen dem thermoplastischem Rohr und dem flexiblen Elastomeranteil. Bislang besteht eine solche Technologie des Verbundes eines thermoplastischen und elastomeren Anteils nicht.This is achieved by using a so-called hard-soft connection technology. The previously manufactured thermoplastic pipe is placed in an elastomer processing machine and the elastomer part is injected onto the thermoplastic pipe. The complete part is then subjected to a vulcanization process. This creates a material-locking and therefore tight and inseparable connection between the thermoplastic pipe and the flexible elastomer part. To date, such a technology for combining a thermoplastic and elastomer part does not exist.

Eine weitere erfindungsmäßige Ausführungsart besteht darin, daß das thermoplastische Rohr und ein ebenfalls schon vorher gefertigter Elastomerschlauch übereinander geschoben werden, im Überlappungsbereich mit Elastomer überspritzt und dann ausvulkanisiert werden. Diese Methode wird dann angewandt, wenn Elastomerschläuche, die nicht im Spritzgußverfahren hergestellt werden können oder wenn flexible Elastomerrohrsegmente zwischen zwei thermoplastischen Rohrabschnitten eingesetzt werden. Die Figuren zeigen im einzelnen:Another embodiment of the invention consists in placing the thermoplastic pipe and an elastomer hose, which has also been manufactured beforehand, over-molded with elastomer in the overlapping area and then vulcanized. This method is used when elastomer hoses that cannot be manufactured using the injection molding process or when flexible elastomer pipe segments are inserted between two thermoplastic pipe sections. The figures show in detail:

Figur 1: Den direkten Verbund eines thermoplastischen Kunststoffrohres mit einem elastomeren SchlauchFigure 1: The direct connection of a thermoplastic plastic pipe with an elastomer hose

Figur 2: Den indirekten Verbund eines thermoplastischen Kunststoffrohres über eine Verbindungsschicht mit einem elastomeren Schlauch.Figure 2: The indirect bonding of a thermoplastic pipe via a bonding layer with an elastomeric hose.

Blatt 4 Datum 19.03.92Sheet 4 Date 19.03.92

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Figur 3: Den indirekten Verbund zweier thermoplastischer Kunststoffrohre über zwei jeweilige Verbindungsschichten mit einem elastomeren Schlauch Figure 3: The indirect connection of two thermoplastic pipes via two respective connecting layers with an elastomer hose

In der Figur 1 ist das thermoplastische Kunststoffrohr (1), z.B. aus der Materialqualität Polyamid 11 oder Polyamid 12 bestehend, in einen elastomeren Schlauch (2) geschoben; der elastomere Schlauch besteht aus einer ganz bestimmten Materialqualität, z.B. X-NBR. Im Verbundbereich (3) überlappen das Rohr (1) und der Schlauch (2). Aufgrund der gewählten Materialkombination besteht die Möglichkeit, aufgrund eines Vulkanisationsprozesses einen stoffschlüssigen Verbund beider Elemente herzustellen, der eine absolute Dichtheit für alle Betriebszustände gewährleistet. Der flexible Anschluß in Pfeilrichtung (5) erfolgt mittels des Elastomerschlauches (2) an die Tülle eines nicht dargestellten metallischen Rohrstutzens, Gehäuses, Flansches oder ähnlichem. Der Verbundbereich (3) der Überlappung von Rohr (1) und Schlauch (2) hat die Länge 1 und den Durchmesser d.In Figure 1, the thermoplastic plastic pipe (1), e.g. made of polyamide 11 or polyamide 12, is pushed into an elastomer hose (2); the elastomer hose is made of a very specific material quality, e.g. X-NBR. The pipe (1) and the hose (2) overlap in the bonding area (3). Due to the selected material combination, it is possible to create a material bond between the two elements using a vulcanization process, which ensures absolute tightness for all operating conditions. The flexible connection in the direction of the arrow (5) is made using the elastomer hose (2) to the nozzle of a metal pipe socket, housing, flange or similar (not shown). The bonding area (3) of the overlap between the pipe (1) and the hose (2) has the length 1 and the diameter d.

In der Figur 2 wird ein thermoplastisches Kunststoffrohr (1) bestimmter Materialqualität in einen aufgeweiteten Elastomerschlauch (2) bestimmter Materialqualität im Aufsteckbereich (8) geschoben. In der äußeren Verbindungszone beider wird über ein elastomeres Formteil (4) entsprechender Materialqualität eine Verbindung hergestellt, die im Verfahren der Vulkanisation einen stoffschlüssigen und dichten Verbund des Rohres (1) mit dem Schlauch (2) für alle Betriebszustände dieser Verbindung in den Überlappungsbereichen (7.1 u. 7.2) sicherstellt.In Figure 2, a thermoplastic plastic pipe (1) of a certain material quality is pushed into an expanded elastomer hose (2) of a certain material quality in the push-on area (8). In the outer connection zone of both, a connection is made via an elastomer molded part (4) of the corresponding material quality, which, in the process of vulcanization, ensures a material-tight bond between the pipe (1) and the hose (2) for all operating states of this connection in the overlapping areas (7.1 and 7.2).

Biatt 5 Datum ig .0.3.Biatt 5 Date ig .0.3.

074/337074/337

Der flexible Anschluß in Pfeilrichtung (5) erfolgt mittels des Elastomerschlauches (2) an die Tülle eines nicht dargestellten metallischen Rohrstutzens, Gehäuses, Flansches oder ähnlichem. Die Uberlappungsbereiche (7.1 u. 7.2) von Rohr (1) und Schlauch (2) und die Aufsteckbereiche (8) haben jeweils die Länge 1 und den Durchmesser d.The flexible connection in the direction of the arrow (5) is made using the elastomer hose (2) to the nozzle of a metal pipe socket, housing, flange or similar (not shown). The overlapping areas (7.1 and 7.2) of the pipe (1) and hose (2) and the attachment areas (8) each have the length 1 and the diameter d.

In der Figur 3 werden zwei thermoplastische Kunststoffrohre (1) und(6) bestimmter Materialqualität in einen aufgeweiteten Elastomerschlauch (2) bestimmter Materialqualität im Aufsteckbereich (8) geschoben. In den äußeren Verbindungszonen wird über zwei elastomere Formteile (4) entsprechender Materialqulität in den Überlappungsbereichen (7.1 u. 7.2) eine Verbindung hergestellt, die im Verfahren der Vulkanisation einen stoffschlüssigen und dichten Verbund der Rohre (1) und (6) mit dem Schlauch (2) für alle Betriebszustände dieser Verbindung darstellt.In Figure 3, two thermoplastic plastic pipes (1) and (6) of a certain material quality are pushed into an expanded elastomer hose (2) of a certain material quality in the push-on area (8). In the outer connection zones, a connection is made using two elastomer molded parts (4) of a corresponding material quality in the overlapping areas (7.1 and 7.2), which, in the vulcanization process, represents a material-tight bond between the pipes (1) and (6) and the hose (2) for all operating conditions of this connection.

Claims (9)

SchutzansprücheProtection claims 1) Rohrleitung aus einem thermoplastischen Kunststoff mit einem flexiblen Verbindungselement zum Anschluß an einen Rohrstutzen, ein Gehäuse, einen Flansch, eine Tülle oder ähnlichem,1) Pipe made of a thermoplastic material with a flexible connecting element for connection to a pipe socket, a housing, a flange, a grommet or similar, dadurch gekennzeichnet, daßcharacterized in that das thermoplastische Kunststoffrohr (1) und der elastomere Schlauch (2) im Verbundbereich (3) oder über ein elastomeres Formteil (4) in. den Überlappungsbereichen (7.1 u. 7.2) eine stoffschlüssige Verbindung, hergestellt durch das Verfahren der Vulkanisation, besitzen.the thermoplastic plastic pipe (1) and the elastomer hose (2) in the composite area (3) or via an elastomer molded part (4) in the overlapping areas (7.1 and 7.2) have a material-locking connection, produced by the vulcanization process. 2) Rohrleitung nach Anspruch 1)
dadurch gekennzeichnet, daß
2) Pipeline according to claim 1)
characterized in that
der elastomere Schlauch (2) an das thermoplastische Kunststoffrohr (1) unmittelbar angebracht wird.the elastomer hose (2) is attached directly to the thermoplastic pipe (1).
3) Rohrleitung nach einem oder mehreren der Ansprüche D - 2)3) Pipeline according to one or more of the claims D - 2) dadurch gekennzeichnet, daßcharacterized in that die Verbindung des Rohres (1) und des Schlauches (2) mit einem Formteil (4) in einer stoffschlüssigen Verbindung nach dem Verfahren der Vulkanisation hergestellt wird.the connection of the pipe (1) and the hose (2) with a molded part (4) is produced in a material-locking connection using the vulcanization process. 4) Rohrleitung nach einem oder mehreren der Ansprüche D - 3)4) Pipeline according to one or more of the claims D - 3) dadurch gekennzeichnet, daßcharacterized in that eine stoffschlüssige Verbindung zwischen der Außenwandung des thermoplastischen Kunststoffrohres (1) und der inneren Wandung des Verbindungselementes aus elastomeren Schlauch (2) besteht.a material connection exists between the outer wall of the thermoplastic pipe (1) and the inner wall of the connecting element made of elastomer hose (2). Blatt g Datum !9.Q3-9 Sheet g Date !9.Q 3-9 074/337074/337 5) Rohrleitung nach einem oder mehreren der Ansprüche 1) - 4)5) Pipeline according to one or more of claims 1) - 4) dadurch gekennzeichnet, daßcharacterized in that eine der Stirnseiten des thermoplastischen Kunststoffrohres (1) und des elastomeren Schlauches (2) über ein Formteil (4) stoffschlüssig miteinander verbunden sind .one of the end faces of the thermoplastic plastic pipe (1) and the elastomer hose (2) are firmly connected to one another via a molded part (4). 6) Rohrleitung nach einem oder mehreren der Ansprüche D - 5)6) Pipeline according to one or more of the claims D - 5) dadurch gekennzeichnet, daßcharacterized in that das thermoplastische Kunststoffrohr (1) und/oder (6) aus Polyamid besteht.the thermoplastic plastic pipe (1) and/or (6) is made of polyamide. 7) Rohrleitung nach einem oder mehreren der Ansprüche 1) - 6)7) Pipeline according to one or more of claims 1) - 6) dadurch gekennzeichnet, daßcharacterized in that das thermoplastische Kunststoffrohr (1) und/oder (6) ein Mehrschichtrohr darstellt.the thermoplastic pipe (1) and/or (6) represents a multilayer pipe. 8) Rohrleitung nach einem oder mehreren der Ansprüche D - 7)8) Pipeline according to one or more of the claims D - 7) dadurch gekennzeichnet, daßcharacterized in that der elastomere Schlauch (2) oder das elastomere Formteil (4) aus der Elastomerqualität X-NBR oder ihrem Modifikationen besteht.the elastomer hose (2) or the elastomer molded part (4) consists of the elastomer quality X-NBR or its modifications. 9) Rohrleitung nach einem oder mehreren der Ansprüche D - 8)9) Pipeline according to one or more of the claims D - 8) dadurch gekennzeichnet, daßcharacterized in that die geometrischen Verhältnisse im Verbundbereich (3) oder den Überlappungsbereichen (7.1 u. 7.2) plus Aufsteckbereichen (8) je 0,5 = 1/d = 3 sind.the geometric conditions in the bonded area (3) or the overlapping areas (7.1 and 7.2) plus the attachment areas (8) are each 0.5 = 1/d = 3.
DE9203999U 1992-03-25 1992-03-25 Device for flexible connection of a thermoplastic pipe Expired - Lifetime DE9203999U1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE9203999U DE9203999U1 (en) 1992-03-25 1992-03-25 Device for flexible connection of a thermoplastic pipe

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673971A (en) * 2020-06-12 2020-09-18 贵州航天精工制造有限公司 Soft oil tank bag opening forming process and structure

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280547A1 (en) * 1987-02-26 1988-08-31 The Gates Rubber Company Encapsulated branched coolant hose
DE3723379A1 (en) * 1987-07-15 1989-01-26 Bayerische Motoren Werke Ag Hose connection
DE4102700A1 (en) * 1991-01-30 1992-08-06 Detlef Zimmer Jointing for tubing angle piece etc. - has thermoplastic angle fitting inside three tube ends and outermost elastomer injection moulded to overlap all joints and form tight seal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0280547A1 (en) * 1987-02-26 1988-08-31 The Gates Rubber Company Encapsulated branched coolant hose
DE3723379A1 (en) * 1987-07-15 1989-01-26 Bayerische Motoren Werke Ag Hose connection
DE4102700A1 (en) * 1991-01-30 1992-08-06 Detlef Zimmer Jointing for tubing angle piece etc. - has thermoplastic angle fitting inside three tube ends and outermost elastomer injection moulded to overlap all joints and form tight seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111673971A (en) * 2020-06-12 2020-09-18 贵州航天精工制造有限公司 Soft oil tank bag opening forming process and structure
CN111673971B (en) * 2020-06-12 2022-07-12 贵州航天精工制造有限公司 Soft oil tank bag opening forming process and structure

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