DE102007041377A1 - Connection system particularly plastic-metal connection system, has pipe with expansion areas and plastic fitting with other areas, where area of the fittings is designed steeper than the area of the pipe - Google Patents

Connection system particularly plastic-metal connection system, has pipe with expansion areas and plastic fitting with other areas, where area of the fittings is designed steeper than the area of the pipe Download PDF

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Publication number
DE102007041377A1
DE102007041377A1 DE102007041377A DE102007041377A DE102007041377A1 DE 102007041377 A1 DE102007041377 A1 DE 102007041377A1 DE 102007041377 A DE102007041377 A DE 102007041377A DE 102007041377 A DE102007041377 A DE 102007041377A DE 102007041377 A1 DE102007041377 A1 DE 102007041377A1
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Germany
Prior art keywords
connection system
fitting
pipe
area
areas
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DE102007041377A
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German (de)
Inventor
Christian Müller
Franz-Josef Riesselmann
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CODE CONSULTING
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CODE CONSULTING
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Publication of DE102007041377A1 publication Critical patent/DE102007041377A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/007—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints specially adapted for joining pipes of dissimilar materials
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/18—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools
    • B29C65/20—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror"
    • B29C65/2007—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror
    • B29C65/203—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using heated tools with direct contact, e.g. using "mirror" characterised by the type of welding mirror being several single mirrors, e.g. not mounted on the same tool
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/004—Preventing sticking together, e.g. of some areas of the parts to be joined
    • B29C66/0042—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined
    • B29C66/0044—Preventing sticking together, e.g. of some areas of the parts to be joined of the joining tool and the parts to be joined using a separating sheet, e.g. fixed on the joining tool
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1224—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least a butt joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/122—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section
    • B29C66/1226—Joint cross-sections combining only two joint-segments, i.e. one of the parts to be joined comprising only two joint-segments in the joint cross-section comprising at least one bevelled joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/124—Tongue and groove joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5221—Joining tubular articles for forming coaxial connections, i.e. the tubular articles to be joined forming a zero angle relative to each other
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/50—General 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
    • B29C66/51—Joining 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
    • B29C66/52—Joining tubular articles, bars or profiled elements
    • B29C66/522—Joining tubular articles
    • B29C66/5229—Joining tubular articles involving the use of a socket
    • B29C66/52291—Joining tubular articles involving the use of a socket said socket comprising a stop
    • B29C66/52293—Joining tubular articles involving the use of a socket said socket comprising a stop said stop being external
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/72—General 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
    • B29C66/723—General 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
    • B29C66/7232—General 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 comprising a non-plastics layer
    • B29C66/72321—General 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 comprising a non-plastics layer consisting of metals or their alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints
    • F16L13/007—Non-disconnectible pipe-joints, e.g. soldered, adhesive or caulked joints specially adapted for joining pipes of dissimilar materials
    • F16L13/013—Accessories therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/02—Welded joints; Adhesive joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L47/00—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics
    • F16L47/20—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics
    • F16L47/24—Connecting arrangements or other fittings specially adapted to be made of plastics or to be used with pipes made of plastics based principally on specific properties of plastics for joints between metal and plastics pipes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/14—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups
    • F16L9/147—Compound tubes, i.e. made of materials not wholly covered by any one of the preceding groups comprising only layers of metal and plastics with or without reinforcement
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General 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
    • B29C66/71—General 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

The connection system has a pipe (20) with expansion areas (21,22) and plastic fitting (2) with other areas (3,4,5). A material connection exists between pipe inner surface in the expansion areas and surfaces of fittings in latter areas. Area of the fittings is designed steeper than the area of the pipe. The area of the fitting is shorter than the area of the pipe. The fitting is provided with a collar with a barrier layer that covers entire collar surface. The aluminum pipe consists of a metallic material such as iron, high-grade steel, titanium, copper and alloys.

Description

Die Erfindung betrifft ein Rohrsystem, das aus einem Kunststoff-Metall-Verbundrohr (KMVR) mit einem Innenrohr aus Polypropylen, mit einer Haftvermittlerschicht, einem Metallband, das um das Innenrohr herum angeordnet ist, und einem Außenrohr aus Polypropylen, das mittels einer Haftvermittlerschicht mit dem Metallband verbunden ist, und entsprechenden Kunststofffittingen aus Polypropylen bestehtThe The invention relates to a pipe system made of a plastic-metal composite pipe (KMVR) with an inner tube made of polypropylene, with a bonding agent layer, a metal band disposed around the inner tube, and an outer tube made of polypropylene, which by means of a primer layer connected to the metal strip, and corresponding plastic fittings made of polypropylene

Im Stand der Technik sind KMVR's mit dem oben erwähnten Aufbau bekannt. Dabei besteht das Innenrohr aus einem vernetzten oder unvernetzten Polyethylen mit verbesserter Temperaturbeständigkeit. Hauptsächlich kommt vernetztes HDPE zum Einsatz, doch gewinnt das PE-RT an Bedeutung. Um das Innenrohr ist eine Aluminiumschicht angeordnet, wobei die Dicke des Aluminiums in Abhängigkeit von der Rohrdimension und -konstruktion zwischen 0,15–2,0 mm liegt. Die Aluminiumschicht wird als Band um das Innenrohr angeordnet; das Band kann stumpf oder überlappt verschweißt sein. Zwischen dem Aluminium und dem Innenrohr ist eine Haftvermittlerschicht auf PE-Basis angeordnet. Auf der Außenseite des Aluminiumbandes ist eine Haftvermittlerschicht auf PE-Basis, um die Verbindung zum Außenrohr aus vernetztern HDPE oder PE-RT zu gewährleisten.in the State of the art are KMVR's with the above-mentioned structure known. The inner tube consists of a crosslinked or uncrosslinked polyethylene with improved temperature resistance. Mainly Crosslinked HDPE is used, but the PE-RT is gaining importance. To the inner tube, an aluminum layer is arranged, wherein the Thickness of the aluminum depending on the pipe dimension and construction is between 0.15-2.0 mm. The aluminum layer is arranged as a band around the inner tube; the band can be dull or be welded overlapped. Between the Aluminum and the inner tube is a primer layer based on PE arranged. On the outside of the aluminum band is a PE-based primer layer to connect to the outer tube from crosslinking HDPE or PE-RT.

Im Stand der Technik sind weiterhin Kunststoffrohre aus Polypropylen bekannt; eine Variante ist das „Stabi-Rohr", das folgenden Aufbau aufweist:
Das Innenrohr besteht Polypropylen, wobei die Dimensionierung nach DIN 8077 und DIN 8078 erfolgt. Um das Innenrohr ist eine Aluminiumschicht, gelocht oder ungelocht angeordnet, wobei die Banddicken zwischen 0,15 und 0,5 mm entsprechend der Rohrdimension liegen. Die Aluminiumschicht wird als Band um das Innenrohr angeordnet, wobei das Band überlappt verklebt ist. Zwischen dem Aluminium und dem Innenrohr und dem Aluminiumband in dem Überlappungsbereich befindet sich eine Haftvermittlerschicht auf PP-Basis. Auf der Oberseite des Aluminiums befindet sich eine Haftvermittlerschicht auf PP-Basis, die die Verbindung zum Außenrohr herstellt. Bei dem gelochten Aluminiumband ist der Haftvermittler nicht notwendig, da das PP für das Außenrohr bei der Aufbringung in Schmelzeform eine werkstoffliche Verbindung mit dem Innenrohr im „Lochbereich" eingeht.In the prior art plastic pipes are still known from polypropylene; a variant is the "Stabi tube", which has the following structure:
The inner tube is made of polypropylene, with the dimensions according to DIN 8077 and DIN 8078 he follows. Around the inner tube is an aluminum layer, perforated or unperforated, the band thicknesses being between 0.15 and 0.5 mm corresponding to the tube dimension. The aluminum layer is arranged as a band around the inner tube, wherein the tape is glued overlapped. Between the aluminum and the inner tube and the aluminum strip in the overlap area is a primer layer based on PP. On top of the aluminum is a primer layer PP-based, which establishes the connection to the outer tube. In the case of the perforated aluminum strip, the adhesion promoter is not necessary since the PP for the outer tube, when applied in melt form, enters into a material connection with the inner tube in the "hole area".

Für das Verbinden von PP-Rohren hat sich die Schweißtechnologie bewährt, und zwar die Muffenverbindung, wobei die Muffe an der Innenseite und das Rohr an der Oberfläche in einem Heizwerkzeug über den Materialschmelzpunkt erwärmt werden.For The joining of PP pipes has become the welding technology proven, namely the socket joint, the sleeve on the inside and the tube on the surface in one Heating tool heated above the material melting point become.

Dann wird das erwärmte Rohrende in die erwärmte Muffe geschoben, wobei die angeschmolzenen Oberflächen eine stoffliche Verbindung eingehen.Then The heated pipe end is in the heated sleeve pushed, the molten surfaces of a material Make contact.

Bei dem „Stabirohr" werden das Außen- und Aluminiumrohr entfernt, z. B. durch Schälen; das freigelegte Innenrohr ist nun für die Muffenschweißverbindung präpariert. Polypropylen hat neben Polyethylen als Material für Kunststoffrohre im Sanitär- und Heizungsbereich einen guten Platz im Markt; ein Grund ist die einfache und preiswerte Verbindungstechnik.at the "rod tube" becomes the outer and aluminum tube removed, z. B. by peeling; the exposed inner tube is now prepared for the socket welding connection. Polypropylene has polyethylene as a material for plastic pipes in plumbing and heating a good place in the market; One reason is the simple and inexpensive connection technology.

Ein Nachteil ist allerdings, dass die Rohre höhere Wanddicken aufweisen, was sich in höheren Materialkosten und in der höheren Steifigkeit der Rohre bemerkbar macht. Die höhere Steifigkeit führt zu höherem Installationsaufwand.One Disadvantage, however, is that the pipes have higher wall thicknesses have, resulting in higher material costs and in the higher stiffness of the pipes noticeable. The higher one Stiffness leads to higher installation costs.

Der Erfindung liegt die Aufgabe zugrunde, ein Kunststoff-Metall-Verbundrohrsystem zu schaffen, das eine reduzierte Wanddicke für das Innenrohr aufweist, dass die Druckfestigkeit hauptsächlich vom Aluminium getragen wird und die Muffenschweißverbindung Einsatz finden kann.Of the Invention is based on the object, a plastic-metal composite pipe system to provide, which has a reduced wall thickness for the inner tube, that the pressure resistance is mainly borne by the aluminum is and the socket weld can be used.

Zur Lösung dieser Anforderung wird mit der Erfindung ein KMVR-System der eingangs genannten Art vorgeschlagen, bei dem das Innenrohr und das Außenrohr aus einem Polypropylen bestehen, in bevorzugter Weise aus einem Random-Copolymer-Propylen (PPR). Für den Fitting kommt ebenfalls Polypropylen, in bevorzugter Weise Raudom-Copolymer-Polypropylen (PPR).to Solution of this requirement is the invention a KMVR system of the type mentioned above, in which the inner tube and the outer tube is made of a polypropylene, more preferably Way of a random copolymer propylene (PPR). For the Fitting is also polypropylene, preferably raudom copolymer polypropylene (PPR).

Mit der Erfindung wird ein Verbundrohrsystem hergestellt, bei dem für das Innenrohr und Außenrohr üblicherweise eingesetzte vernetzte HD-PE oder PE-RT durch PPR ersetzt werden. Der Haftvermittler ist auf Basis von Polypropylen.With The invention provides a composite pipe system is produced in which for the inner tube and outer tube usually used crosslinked HD-PE or PE-RT can be replaced by PPR. The bonding agent is based on polypropylene.

Die Muffenschweißverbindung ist derart geschaffen, dass im Gegensatz zum Stand der Technik das aufgeweitete KMVR an der Innenseite und der Fitting an der Oberfläche erwärmt werden und dann der erwärmte Fitting in das innen erwärmte KMVR geschoben wird, wobei das KMVR und der Fitting eine werkstoffliche Verbindung eingehen.The Muff welding connection is provided such that in Contrary to the prior art, the expanded KMVR on the inside and the fitting to be heated on the surface and then the heated fitting into the internally heated one KMVR is pushed, with the KMVR and the fitting a material Make contact.

Die übliche Muffenschweißtechnik kann bei KMVR's keine Anwendung finden, da der Außenmantel nicht die auftretenden mechanischen Kräfte aufnehmen kann; weiterhin ist die Stirnseite des KMVR's nicht gegen eindringendes Wasser geschützt.The usual Muff welding technology can not be used in KMVR's because the outer sheath is not the mechanical Can absorb forces; continues to be the front of the KMVR's not protected against penetrating water.

Überraschenderweise wurde festgestellt, dass das Druckverhalten von KMVR's mit Innen- und Außenrohr aus PPR nahezu gleich dem Druckverhalten aus vernetztem HD-PE ist. Die Steifigkeit ist aber nur unwesentlich höher, d. h. das Installationsverhalten auf der Baustelle ist mehr oder weniger gleich. Die Verschweißung des Innenrohres mit dem Fitting hat zu praxistauglichen Verbindungen geführt, d. h. die auftretenden Kräfte und Spannungen werden aufgefangen. Das KMVR auf PPR-Basis lässt sich im Gegensatz zum „Stabirohr" biegen, was zu einer Reduzierung der Muffenverbindungen führt. Neben der Zeitersparnis bei der Installation wird das Risiko von Leckagen vermindert. Aus der Praxis ist bekannt, dass Verbindungen ein Risiko für mögliche Undichtigkeiten darstellen können, d. h. je weniger Verbindungsstellen im System, desto sicherer ist es.It has surprisingly been found that the pressure behavior of KMVRs with PPR inner and outer tubes is almost equal to the pressure behavior of cross-linked HDPE. The rigidity is however only slightly higher, ie the installation behavior on the site is more or less the same. The welding of the inner tube with the fitting has led to practicable connections, ie the forces and stresses are absorbed. The PPR-based CMVR can be bent, in contrast to the "rod tube", resulting in a reduction of the socket joints, saving time during installation and reducing the risk of leaks, and in practice it is known that joints are at risk for possible leaks ie the fewer connection points in the system, the safer it is.

Nachfolgend wird anhand der Zeichnungen ein Ausführungsbeispiel der Erfindung näher erläutert. Im Einzelnen zeigenfollowing is an embodiment of the Invention explained in more detail. Show in detail

1 einen Halbschnitt durch eine Verbindung gemäß einem Ausführungsbeispiel der Erfindung, 1 a half-section through a connection according to an embodiment of the invention,

2 einen vergrößerten Ausschnitt des in 1 durch einen Kreis gekennzeichneten Bereiches 2 an enlarged section of the in 1 area indicated by a circle

3 einen partiellen Halbschnitt durch einen Fitting gemäß ersten Ausführungsbeispiel 3 a partial half-section through a fitting according to the first embodiment

4 einen partiellen Halbschnitt durch einen Fitting gemäß zweiten Ausführungsbeispiel 4 a partial half-section through a fitting according to the second embodiment

5 einen partiellen Halbschnitt durch einen Fitting gemäß dritten Ausführungsbeispiel 5 a partial half-section through a fitting according to the third embodiment

6 einen partiellen Halbschnitt durch einen Fitting gemäß einem vierten Ausführungsbeispiel 6 a partial half-section through a fitting according to a fourth embodiment

7 einen Halbschnitt durch das Rohr 7 a half cut through the pipe

8 einen Halbschnitt durch ein aufgeweitetes Rohr 8th a half section through a widened tube

9 einen partiellen Halbschnitt durch ein Aufheizwerkzeug für den Fitting gemäß erstem Ausführungsbeispiel 9 a partial half-section through a heating tool for the fitting according to the first embodiment

10 einen partiellen Halbschnitt durch ein Aufheizwerkzeug für das Rohr 10 a partial half-section through a heating tool for the pipe

1 und 2 zeigen eine Schweißverbindung 1 ohne eine Querschnittreduzierung im Fittingbereich. Der Fitting 2 ist mit den Seiten 3 und 4 mit den Innenseiten 21 und 22 des Rohres 20 werkstofflich verbunden. Der Bereich 5 stellt die Verschweißung der Stirnseite des Rohres mit dem Fitting dar. Die Fittingseite 3 kann etwas flacher gestaltet sein als die Rohrseite 21, damit sich der geschmolzene Kunststoff beim Einschieben des Fittings 2 nicht zu weit ins Rohr 20 im Bereich 27 schiebt. Eine andere Möglichkeit ist, den Bereich 27 so zu gestalten, dass der Fitting 2 in dem Bereich 3 etwas kürzer als der Rohrbereich 21 ist, in dem nun entstandenen Freiraum kann sich der geschmolzene Kunststoff beim Einschieben des Fittingkörper 2 in das Rohr 20 sammeln. 1 and 2 show a welded joint 1 without a cross section reduction in the fitting area. The fitting 2 is with the pages 3 and 4 with the insides 21 and 22 of the pipe 20 materially connected. The area 5 represents the welding of the face of the pipe with the fitting. The fitting side 3 may be a bit flatter than the tube side 21 so that the molten plastic during insertion of the fitting 2 not too far into the pipe 20 in the area 27 pushes. Another possibility is the area 27 so that the fitting 2 in that area 3 slightly shorter than the pipe area 21 is, in the resulting free space, the molten plastic can when inserting the fitting body 2 in the pipe 20 collect.

3 stellt einen Kunststofffitting 2 zum Verbinden von zwei Rohren gleichen Durchmessers dar. Die Flächen 3, 4 und 5 sind die Flächen, die angeschmolzen werden. Die Flächen 3a, 4a und 5a sind spiegelbildlich angeordnet. Der Kragen 6 stellt einen Anschlag dar, bis zu dem das Rohr aufgeschoben wird. Der Kragen 6 kann auf der Außenseite mit einer Barriereschicht, z. B. EVOH-Lack, Silizium-Lack versehen sein, um den Sauerstoffeintrag bei Einsatz für Heilsysteme auf den Wert nach DIN 4726 zu reduzieren. 3 puts a plastic fitting 2 for connecting two tubes of the same diameter dar. The surfaces 3 . 4 and 5 are the surfaces that are melted. The surfaces 3a . 4a and 5a are arranged in mirror image. The collar 6 represents a stop to which the tube is pushed. The collar 6 can on the outside with a barrier layer, z. For example, EVOH paint, silicon paint can be provided to value the oxygen input when used for healing systems DIN 4726 to reduce.

4 zeigt eine andere Art der Schweißkontur vor, und zwar ist es eine Tulpenform mit den Bereichen 7 und 8. Es ist selbstverständlich, dass das Aufweitwerkzeug für das Rohr 20 und das Aufheizwerkzeug 30 und 40 entsprechend gestaltet sein müssen. 4 shows a different type of welding contour, and it is a tulip shape with the areas 7 and 8th , It goes without saying that the expansion tool for the pipe 20 and the heating tool 30 and 40 must be designed accordingly.

5 zeigt eine konische Ausführung der Schweißkontur mit dem Bereich 9. 5 shows a conical design of the welding contour with the area 9 ,

6 stellt eine weitere Variante der Schweißkontur dar. Mit dieser Ausführung ist es möglich auch den Außenmantel des KMVR's 20 zu verschweißen. Dafür kommt der Bereich 10 des Kunststofffittings 2 zum Einsatz. Der Bereich 10 kann ein Sichtfenster in der Nähe des Bereiches 5 aufweisen, um die Position des KMVR's 20 beim Zusammenstecken zu kontrollieren. Der Bereich 11 stellt eine Schraubverbindung dar, um lösbare Verbindungen und Übergänge zu anderen Rohrsystemen zu ermöglichen. 6 represents another variant of the welding contour. With this design, it is also possible the outer jacket of the KMVR's 20 to weld. That's where the area comes from 10 of plastic fittings 2 for use. The area 10 can have a viewing window near the area 5 exhibit the position of the KMVR 20 to control during mating. The area 11 provides a threaded connection to allow detachable connections and transitions to other pipe systems.

7 stellt ein Kunststoffmetallverbundrohr (KMVR) 20 dar, das aus 5 Einzelschichten besteht:
Das Innenrohr 22 besteht aus Polypropylen (PPR). Andere verschweißbare Kunststoffe sind möglich, z. B. PE, PB, PA. Die Schichtdicke beträgt min. 0,5 mm nach der DIN 16837 , im Mittel 1 mm für die Dimension 16 mm. Mit steigendem Durchmesser nimmt die Wanddicke entsprechend zu. Die Schicht 23 bildet den Haftvermittler, der für den Verbund zwischen dem Innenrohr 22 und dem Aluminiumrohr 24 verantwortlich ist. Schicht 25 ist wieder eine Haftvermittlerschicht, um einen Verbund zwischen dem Aluminiumrohr 24 und dem Außenmantel 26 darzustellen. Das Material für den Außenmantel 26 kann PPR, PE, PB, etc. sein. Wenn keine Verschweißung vorgesehen wird, können auch andere Kunststoffe eingesetzt werden, z. B. PEX. 7 represents a plastic metal composite pipe (KMVR) 20 which consists of 5 individual layers:
The inner tube 22 consists of polypropylene (PPR). Other weldable plastics are possible, for. For example, PE, PB, PA. The layer thickness is min. 0.5 mm after the DIN 16837 , on average 1 mm for the dimension 16 mm. As the diameter increases, the wall thickness increases accordingly. The layer 23 forms the bonding agent, which is responsible for the bond between the inner tube 22 and the aluminum tube 24 responsible for. layer 25 is again a primer layer to bond between the aluminum tube 24 and the outer jacket 26 display. The material for the outer jacket 26 may be PPR, PE, PB, etc. If no welding is provided, other plastics can be used, for. Eg PEX.

8 zeigt das KMVR 20 in einem aufgeweiteten Zustand, wobei der Bereich 21 eine konische Aufweitung darstellt. Die einzelnen Schichten sind so miteinander verklebt, dass keine Delaminationserscheinungen im Bereich 21 auftreten; diese können bei der Herstellung der Schweißverbindung hinderlich sein bzw. eine Schweißverbindung unmöglich machen. 8th shows the KMVR 20 in an expanded state, the area 21 represents a conical widening. The individual layers are glued together so that no Delaminationserscheinungen in the area 21 occur; These can be a hindrance in the production of the welded joint or make a weld impossible.

9 stellt das Aufheizwerkzeug 30 für den Fitting 2 dar. Die Bereiche 31, 32 und 33 sind mit einer Antihaftschicht versehen. So wird verhindert, dass das Fittingmaterial in den Bereichen 3, 4 und 5 im geschmolzenen Zustand am Aufheizwerkzeug 30 anhaftet. Das Aufheizwerkzeug ist in der Regel elektrisch beheizt. Dargestellt sind elektrische Heizstäbe 34. Andere Heizungen sind ebenfalls denkbar. 9 puts the heating tool 30 for the fitting 2 dar. The areas 31 . 32 and 33 are provided with a non-stick layer. This will prevent the fitting material in the areas 3 . 4 and 5 in the molten state on the heating tool 30 adheres. The heating tool is usually electrically heated. Shown are electric heating elements 34 , Other heaters are also conceivable.

10 stellt das Aufheizwerkzeug 40 für das KMVR 20 mit den aufgeweiteten Bereichen 21 und 22 dar. So wird verhindert, dass das Rohrmaterial 22, 23, 25 und 26 in den Bereichen 3, 4 und 5 im geschmolzenen Zustand am Aufheizwerkzeug 40 anhaftet. Mit 44 sind elektrische Heizstäbe dargestellt. 10 puts the heating tool 40 for the KMVR 20 with the widened areas 21 and 22 This will prevent the pipe material 22 . 23 . 25 and 26 in the fields of 3 . 4 and 5 in the molten state on the heating tool 40 adheres. With 44 are shown electric heating elements.

Eine Herstellung einer Verbindung läuft wie folgt ab: Das aufgeweitete Rohrende 21 und der entsprechende Fitting 2 werden mit den Aufheizwerkzeugen 30 und 40 in den zu verschweißenden Bereichen 3, 4 und 5 soweit aufgeheizt, dass die Oberfläche bzw. Innenfläche angeschmolzen sind. Dann werden die Aufheizwerkzeuge entfernt und der Fitting in das Rohr geschoben und einen kurzen Moment gehalten. Damit ist der Vorgang abgeschlossen.A connection is made as follows: The flared pipe end 21 and the corresponding fitting 2 be with the heating tools 30 and 40 in the areas to be welded 3 . 4 and 5 so far heated that the surface or inner surface are melted. Then the heating tools are removed and the fitting pushed into the pipe and held for a short moment. This completes the process.

ZITATE ENTHALTEN IN DER BESCHREIBUNGQUOTES INCLUDE IN THE DESCRIPTION

Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Zitierte Nicht-PatentliteraturCited non-patent literature

  • - DIN 8077 [0003] - DIN 8077 [0003]
  • - DIN 8078 [0003] - DIN 8078 [0003]
  • - DIN 4726 [0026] - DIN 4726 [0026]
  • - DIN 16837 [0030] - DIN 16837 [0030]

Claims (19)

Verbindungssystem mit – einem Rohr (20), das die Aufweitbereiche (21) und (22) aufweist, und – einem Kunststofffitting (2), das die Bereiche (3), (4) und (5) aufweist, dadurch gekennzeichnet, dass zwischen den Rohrinnenflächen in den Bereichen (21) und (22) und Oberflächen des Fittings (2) in den Bereichen (3) und (4) eine stoffliche Verbindung besteht.Connection system with - a pipe ( 20 ), which the expansion areas ( 21 ) and ( 22 ), and - a plastic fitting ( 2 ), which covers the areas ( 3 ) 4 ) and ( 5 ), characterized in that between the pipe inner surfaces in the areas ( 21 ) and ( 22 ) and surfaces of the fitting ( 2 ) in the fields of ( 3 ) and ( 4 ) a material connection exists. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass eine stoffliche Verbindung im Bereich (5) angeordnet ist.Connection system according to claim 1, characterized in that a material connection in the region ( 5 ) is arranged. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Bereich (3) des Fittings (2) steiler gestaltet ist als Bereich (21) des Rohres (20).Connection system according to claim 1, characterized in that the area ( 3 ) of the fitting ( 2 ) is steeper than area ( 21 ) of the pipe ( 20 ). Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Bereich (3) des Fittings (2) kürzer ist als der Bereich (21) des Rohres (20).Connection system according to claim 1, characterized in that the area ( 3 ) of the fitting ( 2 ) is shorter than the range ( 21 ) of the pipe ( 20 ). Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass im Bereich (27) Raum für die Aufnahme eines möglicherweise entstehenden Schweißwulstes angeordnet ist.Connection system according to claim 1, characterized in that in the area ( 27 ) Space is arranged for receiving a possibly resulting Schweißwulstes. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Kragen (6) des Fittings (2) mit einer Barriereschicht ausgerüstet ist. Die Barriereschicht kann die gesamte Kragenfläche umfassen, d. h. auch die Bereiche (5) und (5a).Connection system according to claim 1, characterized in that the collar ( 6 ) of the fitting ( 2 ) is equipped with a barrier layer. The barrier layer may comprise the entire collar surface, ie also the regions ( 5 ) and ( 5a ). Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Schweißbereich eine Tulpenform mit den Bereichen (7) und (8) aufweist.Connection system according to claim 1, characterized in that the welding area has a tulip shape with the areas ( 7 ) and ( 8th ) having. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Schweißbereich (9) konisch angeordnet ist.Connection system according to claim 1, characterized in that the welding area ( 9 ) is conically arranged. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass der Fitting einen umlaufenden Ring (10) aufweist, der eine stoffliche Verbindung dem Außenmantel ermöglicht.Connection system according to claim 1, characterized in that the fitting has a circumferential ring ( 10 ), which allows a material connection to the outer jacket. Verbindungssystem 1, dadurch gekennzeichnet, dass der umlaufende Ring (10) plastich verformbar ist und eine radiale Verpressung ermöglicht.connection system 1 , characterized in that the circumferential ring ( 10 ) is plastich deformable and allows radial compression. Verbindungssystem 1, dadurch gekennzeichnet, dass der Fitting (2) einen Bereich (11) aufweist, der eine kraftschlüssige Verbindung ermöglicht.connection system 1 , characterized in that the fitting ( 2 ) an area ( 11 ), which allows a frictional connection. Verbindungssystem 1, dadurch gekennzeichnet, dass das Innenrohr (22) und die Rohraußenschicht (26) aus einem thermoplastischen Werkstoff bestehen.connection system 1 , characterized in that the inner tube ( 22 ) and the tube outer layer ( 26 ) consist of a thermoplastic material. Verbindungssystem 1 dadurch gekennzeichnet, dass der Fitting (2) aus einem thermoplastischen Werkstoff besteht, der mit Rohrwerkstoff verschweißbar ist.connection system 1 characterized in that the fitting ( 2 ) consists of a thermoplastic material which is weldable with pipe material. Verbindungssystem 1, dadurch gekennzeichnet, dass das Innenrohr (22), die die Rohraußenschicht (26) und der Fitting (2) aus einem Werkstoff bestehen, der eine Verklebung des Fittings (2) mit dem Rohr (20) in den Bereichen (3) und (4) ermöglicht.connection system 1 , characterized in that the inner tube ( 22 ), the pipe outer layer ( 26 ) and the fitting ( 2 ) consist of a material which is a bonding of the fitting ( 2 ) with the pipe ( 20 ) in the fields of ( 3 ) and ( 4 ). Verbindungssystem 1, dadurch gekennzeichnet, dass das Aluminiumrohr (24) aus einem metallischen Werkstoff wie Eisen, Edelstahl, Titan, Kupfer und möglichen Legierungen besteht.connection system 1 , characterized in that the aluminum tube ( 24 ) consists of a metallic material such as iron, stainless steel, titanium, copper and possible alloys. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass das Aluminiumrohr (24) gelocht oder perforiert ist.Connection system according to claim 1, characterized in that the aluminum tube ( 24 ) is perforated or perforated. Verbindungssystem nach Anspruch 1, dadurch gekennzeichnet, dass anstatt des Aluminiumrohres (24) ein metallisches Geflecht zum Einsatz kommt.Connection system according to claim 1, characterized in that instead of the aluminum tube ( 24 ) a metallic mesh is used. Verbindungssystem nach Anspruch 1, 2, 7 und 8, dadurch gekennzeichnet, dass die Aufheizwerkzeuge (30) und (40) Konturen aufweisen, die den Konturen des Fittings (2) und des Rohres (20) im Bereich (21) angepasst sind.Connection system according to claim 1, 2, 7 and 8, characterized in that the heating tools ( 30 ) and ( 40 ) Have contours that correspond to the contours of the fitting ( 2 ) and the tube ( 20 ) in the area ( 21 ) are adjusted. Verbindungssystem nach Anspruch 1, 2, 7 und 8, dadurch gekennzeichnet, dass das Aufweitwerkzeug für das Rohr (20) den Konturen im Bereich (21) angepasst ist.Connection system according to claim 1, 2, 7 and 8, characterized in that the expansion tool for the pipe ( 20 ) the contours in the area ( 21 ) is adjusted.
DE102007041377A 2007-08-31 2007-08-31 Connection system particularly plastic-metal connection system, has pipe with expansion areas and plastic fitting with other areas, where area of the fittings is designed steeper than the area of the pipe Withdrawn DE102007041377A1 (en)

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Cited By (6)

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Publication number Priority date Publication date Assignee Title
DE102010008291A1 (en) 2010-02-17 2011-08-18 Riesselmann, Franz-Josef, 49393 Plastic-metal-composite pipe for use in connection system for connecting polypropylene pipes, comprises inner pipe, which is made multiple single layers, where single layers have inner layer made of bonding agent
DE102010044279A1 (en) * 2010-09-02 2012-03-08 Rehau Ag + Co. Multilayer plastic pipe, its use and this comprehensive welded joint
CN106555910A (en) * 2015-09-30 2017-04-05 浙江三花股份有限公司 Pipe connecting structure and method, the pipeline assembly of air-conditioner set
CN107202204A (en) * 2017-06-28 2017-09-26 中国建筑科学研究院 Air conditioning engineering pipeline system based on aluminum alloy lining plastic pipe and pipe fitting
DE102018102784A1 (en) * 2018-02-08 2019-08-08 Valeo Schalter Und Sensoren Gmbh Method and device for connecting two components
CN110462272A (en) * 2017-04-28 2019-11-15 蒂森克虏伯伍德氯工程有限公司 Sealing coupling that may be mounted between at least two pipes on each other of electrolysis system and application thereof

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010008291A1 (en) 2010-02-17 2011-08-18 Riesselmann, Franz-Josef, 49393 Plastic-metal-composite pipe for use in connection system for connecting polypropylene pipes, comprises inner pipe, which is made multiple single layers, where single layers have inner layer made of bonding agent
DE102010008291B4 (en) * 2010-02-17 2016-04-28 Franz-Josef Riesselmann Multilayer pipe made of plastic and metal
DE102010044279A1 (en) * 2010-09-02 2012-03-08 Rehau Ag + Co. Multilayer plastic pipe, its use and this comprehensive welded joint
CN106555910A (en) * 2015-09-30 2017-04-05 浙江三花股份有限公司 Pipe connecting structure and method, the pipeline assembly of air-conditioner set
CN106555910B (en) * 2015-09-30 2019-01-18 新昌县四通机电有限公司 The pipeline assembly of pipe connecting structure and method, air-conditioner set
CN110462272A (en) * 2017-04-28 2019-11-15 蒂森克虏伯伍德氯工程有限公司 Sealing coupling that may be mounted between at least two pipes on each other of electrolysis system and application thereof
CN110462272B (en) * 2017-04-28 2024-01-02 蒂森克虏伯伍德氯工程有限公司 Sealed coupling between at least two tubes of an electrolysis system that can be mounted on each other and use thereof
CN107202204A (en) * 2017-06-28 2017-09-26 中国建筑科学研究院 Air conditioning engineering pipeline system based on aluminum alloy lining plastic pipe and pipe fitting
DE102018102784A1 (en) * 2018-02-08 2019-08-08 Valeo Schalter Und Sensoren Gmbh Method and device for connecting two components

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