EP2539128A2 - Procédé de fabrication d'un tube composite - Google Patents

Procédé de fabrication d'un tube composite

Info

Publication number
EP2539128A2
EP2539128A2 EP11710398A EP11710398A EP2539128A2 EP 2539128 A2 EP2539128 A2 EP 2539128A2 EP 11710398 A EP11710398 A EP 11710398A EP 11710398 A EP11710398 A EP 11710398A EP 2539128 A2 EP2539128 A2 EP 2539128A2
Authority
EP
European Patent Office
Prior art keywords
insulating material
heated
insulating layer
cooled
tube
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.)
Withdrawn
Application number
EP11710398A
Other languages
German (de)
English (en)
Inventor
Raimund Rockenbauer
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.)
Isoplus Fernwarmetechnik GmbH
Original Assignee
Isoplus Fernwarmetechnik 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 Isoplus Fernwarmetechnik GmbH filed Critical Isoplus Fernwarmetechnik GmbH
Publication of EP2539128A2 publication Critical patent/EP2539128A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/02—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles
    • B29C43/04—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds
    • B29C43/06—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of definite length, i.e. discrete articles using movable moulds continuously movable in one direction, e.g. mounted on chains, belts
    • 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
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • F16L59/00—Thermal insulation in general
    • F16L59/14—Arrangements for the insulation of pipes or pipe systems
    • F16L59/143—Pre-insulated pipes
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92209—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92352—Inserts
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92847—Inserts
    • 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
    • B29C48/06—Rod-shaped
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/303—Extrusion nozzles or dies using dies or die parts movable in a closed circuit, e.g. mounted on movable endless support
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/355—Conveyors for extruded articles
    • 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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/36—Bending and joining, e.g. for making hollow articles
    • B29C53/38—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges
    • B29C53/48—Bending and joining, e.g. for making hollow articles by bending sheets or strips at right angles to the longitudinal axis of the article being formed and joining the edges for articles of indefinite length, i.e. bending a strip progressively
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING 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
    • B29K2075/00—Use of PU, i.e. polyureas or polyurethanes or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid
    • B29L2023/225—Insulated

Definitions

  • the invention relates to a method for producing a composite pipe, which comprises at least a core tube, an insulating layer and a jacket tube, wherein in a Dämmstoffausformungs Scheme, which extends around the core tube, a foamable insulating material is introduced in a Dämmmaterialinbnngungs Scheme by means of pistol, the insulating material in a Dämmmaterialausformungs Scheme forms to the insulating layer and the insulation layer is formed in a Dämm harshform Trial Stud and the jacket tube is applied to the molded insulating layer, wherein the composite tube is heated in Dämmtikform Scheme.
  • polyurethane is mostly used as insulating material for the insulation layer.
  • the polyurethane is introduced in fluid form into an area to be filled by means of spray guns and solidified under an increase in volume.
  • the solidification of the sprayed-on polyurethane has to take place within a certain temperature range. If the region in which the insulating layer is formed is too low in temperature, it is almost impossible to provide a high quality insulating layer, i. with a low thermal conductivity in a homogeneous cell construction and at a low specific gravity.
  • AT002992 describes a method according to which the foamed insulating layer is formed with heated forming jaws.
  • the invention discussed herein discloses a method which allows for the formation of a uniform, high quality cell structure in the context of manufacturing a composite tube. According to the invention, this is achieved by heating or cooling the insulating material introduction region and the insulating layer molding region to a defined temperature range.
  • the cooled or heated area in which the insulating layer is formed may be closed by a housing, so that heating or cooling of this area relative to the surroundings can be performed in an effective manner.
  • the method according to the invention has the decisive advantage that the above-mentioned problems with regard to start-up of a production device no longer exist.
  • the insulating material can be introduced by means of a gun in the Dämmstoffausformungs Symposium.
  • the invention does not exclude that the insulating material is sprayed with other, known in the art devices in the Dämmstoffausformungs Grade or applied to a befindaji in Dämmstoffausformungs Grade part of the core tube.
  • a further development of the method according to the invention can consist in that the insulating material layer is formed in its surface area by shaped pieces located in a closed position and the shaped pieces are heated or cooled so that the heated molded pieces heat or cool the insulating material forming area.
  • the fittings located in a closed position can serve to spatially limit an expansion of the insulating material which cures to the insulating layer.
  • a hardening of the insulating material to an insulating layer may be associated with an increase in volume.
  • the Dämmstoffausformungs Kunststoff, in particular the fittings can be heated or cooled in the context of this invention by a method known in the art and by means of suitable device. A heating of the area or the fittings can be carried out for example by an infrared heater.
  • the device may comprise heating or cooling devices, by means of which heating or cooling media are passed to the fittings.
  • the fittings can also be washed by the heating and cooling media.
  • Another embodiment of a heater is an electrical resistance heater.
  • the Dämmstoffausformungs Kunststoff can extend in the sense of a progressive production starting from the gun through which the insulation layer is introduced in fluid form, up to the last seen in the direction of production molding.
  • the formation of the insulating layer of the insulating material preferably takes place in a temperature range of 0 to 100 degrees Celsius, preferably in a temperature range of 10 to 40 degrees Celsius when using polyurethane insulating material to ensure a uniform formation of the cells.
  • a uniform formation of the cells ensures in relation to the material properties of the insulating material very good and on the extent of the insulating layer constant insulation properties.
  • Such an insulating layer further has a substantially constant specific gravity.
  • heating or cooling of the fittings is necessary if the room temperature of the premises is below or above the temperature range in which curing of the insulating material preferably takes place.
  • the invention does not exclude that the heating or cooling of the fittings is limited to a limited period of time.
  • a period can For example, be that period in which the production of composite pipe is started according to the inventive method on a plant. This period may be limited by the time at which the room temperature and parts of the apparatus for producing the composite pipes is heated to a defined temperature range by those heat of production which arises during the production of the composite pipes.
  • the inventive method is characterized in that the composite pipes, which are characterized by a high-quality insulation layer, can be produced even at low temperatures.
  • a plant for carrying out the method according to the invention can be formed in that the Dämmstoffausformungs Scheme and / or the fittings in Operabhus have different temperatures.
  • the different temperatures can be defined by the different states of aggregation of the insulating material or the insulating layer made of the insulating material.
  • the method of the present invention may include placing a release liner around the core tube and defining the insulation curing area as a space extending between the inside of the release liner and the outside of the core tube such that the insulating material is introduced into the space in fluid form.
  • a release film can prevent, for example, a bond between the insulating layer and the fittings.
  • the insulating material may include adhesive substances, which may cause at least partial bonding with the fittings during curing of the insulating material.
  • the release film can thus be formed into a tube, wherein a compound of the longitudinal edges of the release film is produced by welding and / or gluing.
  • such a shaping of the release film to a hose takes place immediately after the transfer of the release film around the core tube and before the introduction of the Dämmmaterials in the space defined by the release film and the core tube.
  • the invention also includes that the release film in the form of a tube is placed around the core tube.
  • the insulating layer in its surface area and optionally the release film can be formed by the fittings smooth or wavy.
  • the ambient conditions essentially relate to the temperature, in a broader sense dependent parameters such as the humidity.
  • the curing of the insulating material in a preferred temperature range can also facilitate a shaping of the insulating layer in the surface region and optionally the release film.
  • Possible shapes of the insulating layer in the area subjected to the process and the release film is a wavy or smooth shape.
  • the shaping can be predetermined by the subsequent storage on a cable reel in a rolled-up state of the composite pipe or in a substantially unbent state.
  • the invention discussed herein does not exclude that the surface of the insulating material layer and optionally the surface of the release film having formations such as notches at predefined intervals.
  • a special form of a wavy shape of the surface of the insulating layer or optionally the surface of the release film may be a half-wave shape.
  • the insulation layer in its surface area and optionally the release film can be formed in a first sub-step and in a first sub-area, in a further sub-step in a further sub-area.
  • the invention also relates to methods according to which the insulating layer is formed in its surface area and optionally the release film in a continuous process.
  • the jacket tube can be applied to the molded insulating layer or optionally to the molded release film.
  • the inventive method may be characterized in that the jacket tube is applied in fluid form to the molded insulation layer or optionally on the molded release film, the jacket tube on the insulation layer or optionally solidifies on the release liner and the outer surface of the jacket tube has a similar surface shape as the surface of having molded insulation layer or optionally the molded release film.
  • the jacket tube may for example be made of a material which is applied in fluid form to the molded insulation layer or optionally to the formed release film and solidifies on the molded insulation layer or on the molded release film.
  • the jacket pipe is made of polyurethane or a similar plastic.
  • the inventive method may be characterized in that by forming the insulation layer and optionally the release film, the insulating layer and optionally the release film has a preferred temperature range for applying the material of the jacket tube in fluid form, so that the material of the jacket tube to the shape of the molded insulating layer or the shaped release film adapts.
  • the jacket tube can be applied for example by means of extrusion on the molded insulating layer or optionally on the molded release film.
  • the process parameters and thus the formation of the insulating layer of the insulating material can be influenced.
  • the formation of the insulating layer of the insulation material can be accelerated or delayed.
  • the production rate is mentioned as a process parameter.
  • the invention discussed here also relates to an apparatus for carrying out the production of a composite pipe, wherein the apparatus comprises at least one Storage drum, a roller system, a supply spool, a gun, fittings, a Mantelrohraufbringmaschine and a strip trigger, the device comprises a heated or cooled Dämmmaterialeinbringungungs Suite and / or Dämmmaterialausformungs Stud
  • the Dämmstoffausformungs Stud can be essentially defined by a housing, which is the method according to the invention
  • the housing in a preferred embodiment, includes prior art devices to optionally occlude the openings.
  • the device according to the invention can be characterized in that the fittings are heated or cooled.
  • the fittings are preferably placed within the housing defining the area.
  • the device may also include other heat sources through which the core tube and / or optionally the release film is heated.
  • heat sources may be integrally formed in elements of the device, such as guide elements.
  • the funnel can be heated.
  • FIG. 1 shows a cross-sectional view of an embodiment of a composite tube produced by the method according to the invention.
  • FIG. 1 shows a sketch of a composite tube 13 which comprises at least one core tube 2, an insulating material layer 8 arranged around the core tube 2 and a jacket tube 11 arranged around the insulating material layer 8.
  • the core tube 2 is connected to the insulating material layer 8, the insulating material layer 8 with the jacket tube 11.
  • the insulating material layer 8 facing surface of the core tube 2 and / or the jacket tube 1 1 may be structured so as to produce a bond between the core tube 2 or casing tube 1 1 and the insulating material layer 8.
  • FIG. 2 shows an embodiment of a composite pipe comprising a release film 5.
  • the jacket tube 1 To the core tube 2, the insulating material layer 8, the insulation film, a release film 5 to the release film 5, the jacket tube 1 is arranged.
  • the release film 5 is arranged as a tube 6 in the composite tube 13.
  • the insulating layer 8 or the release film 5 facing surface of the core tube 2 and / or the jacket tube 1 1 may be structured so as to produce a composite of the core tube 2 and the jacket tube 1 1 with the insulating layer 8 and the release film 5.
  • FIG. 3 shows a device 50 for carrying out the method according to the invention, wherein in a preceding method step the core tube 2 is unrolled from a supply roll 1.
  • a roller system 3 is used to drive the core tube 2.
  • the insulating material is introduced by means of a heated gun 7, which is positioned in the upper portion of the open funnel shape, in the extending between the release film 5 and the core tube 2 space.
  • the Insulating layer 8 is formed in its surface area by the molds 9, 10 located in the closed position and by the fittings 9, 10 which are cooled or heated, cooled or heated.
  • the surface of the insulating material layer 8 is formed smooth by the fittings 9, 10. The formation of the surface of the insulating layer takes place in a continuous process.
  • the insulating material forming region 21 is defined as the region viewed in the production direction from the mold pieces 9, 10 located in the gun 7 and by the last closing position.
  • the fittings 9, 10 can be heated by a heat source, whereby a temperature range is created in the region 21, which is optimal for forming the insulating layer 8. In this case, the fittings 9, 10 can also be heated or cooled to different temperatures of the temperature range.
  • the tube 5 and the insulating layer 8 is formed, wherein the surface 18 may have a corrugated or smooth shape after molding in the molding press 14.
  • the device 50 shown in FIG. 3 permits continuous shaping of the tube 6 and the insulating material layer 8.
  • the jacket tube 11 is applied to the tube 6.
  • the surface 19 of the jacket tube 11 is similar to the surface 18 of the release film.
  • the strip trigger 15 forms the surface 19 of the jacket tube 11 and ensures the movement of the composite tube thirteenth
  • a cooling device can be used as needed.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Thermal Insulation (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un procédé de fabrication d'un tube composite (13) qui comprend au moins un tube noyau (2), une couche (8) de matériau isolant et un tube de gaine (11). Selon l'invention, dans une partie (21) de mise en forme du matériau isolant, qui s'étend autour du tube noyau (2), un matériau isolant pouvant être moussé est introduit dans une partie d'introduction de matériau isolant au moyen d'un pistolet, le matériau isolant est mis en forme dans une partie de mise en forme de matériau isolant pour donner la couche (8) de matériau isolant, et la couche (8) de matériau isolant est formée dans une partie de formation de couche isolante et le tube de gaine (11) est appliqué autour de la couche (8) de matériau isolant formée. Le tube composite est chauffé dans la partie de formation de couche isolante, et la partie d'introduction de matériau isolant et la partie de formation de couche isolante sont chauffées ou refroidies à une plage de température définie.
EP11710398A 2010-02-26 2011-02-16 Procédé de fabrication d'un tube composite Withdrawn EP2539128A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0030110A AT509229B1 (de) 2010-02-26 2010-02-26 Verfahren zur herstellung eines verbundrohres
PCT/AT2011/000077 WO2011103606A2 (fr) 2010-02-26 2011-02-16 Procédé de fabrication d'un tube composite

Publications (1)

Publication Number Publication Date
EP2539128A2 true EP2539128A2 (fr) 2013-01-02

Family

ID=44257162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11710398A Withdrawn EP2539128A2 (fr) 2010-02-26 2011-02-16 Procédé de fabrication d'un tube composite

Country Status (3)

Country Link
EP (1) EP2539128A2 (fr)
AT (1) AT509229B1 (fr)
WO (1) WO2011103606A2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10293528B2 (en) 2016-08-02 2019-05-21 Thermacor Process, Inc. Continuous method for producing pre-insulated piping
US10293527B2 (en) 2016-08-02 2019-05-21 Thermacor Process, Inc. Continuous method for producing pre-insulated piping
CN109159432A (zh) * 2018-10-22 2019-01-08 河北昊天能源投资集团有限公司 一种柔性保温管连续生产装置及生产流程

Citations (2)

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Publication number Priority date Publication date Assignee Title
WO1984003066A1 (fr) * 1983-02-14 1984-08-16 Neste Oy Procede de fabrication d'une gaine ou d'un conduit d'isolation thermique pour un ou plusieurs tuyaux
US20030031816A1 (en) * 1999-12-18 2003-02-13 Alfons Topp Extrusion device and method for producing plastic hollow profiles having at least one hollow chamber space that is filled with foam

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AT509229B1 (de) 2011-07-15
AT509229A4 (de) 2011-07-15
WO2011103606A3 (fr) 2011-12-15

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