EP2382075A1 - Procédé de fabrication d'un conduit isolé thermiquement - Google Patents

Procédé de fabrication d'un conduit isolé thermiquement

Info

Publication number
EP2382075A1
EP2382075A1 EP10701191A EP10701191A EP2382075A1 EP 2382075 A1 EP2382075 A1 EP 2382075A1 EP 10701191 A EP10701191 A EP 10701191A EP 10701191 A EP10701191 A EP 10701191A EP 2382075 A1 EP2382075 A1 EP 2382075A1
Authority
EP
European Patent Office
Prior art keywords
conduit
tube
outer tube
waveform
corrugated
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Withdrawn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
EP10701191A
Other languages
German (de)
English (en)
Inventor
Alfred Oeschger
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.)
Brugg Rohr AG Holding
Original Assignee
Brugg Rohr AG Holding
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 Brugg Rohr AG Holding filed Critical Brugg Rohr AG Holding
Priority to EP10701191A priority Critical patent/EP2382075A1/fr
Publication of EP2382075A1 publication Critical patent/EP2382075A1/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Withdrawn legal-status Critical Current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
    • 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
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D23/00—Producing tubular articles
    • B29D23/18—Pleated or corrugated hoses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0021—Combinations of extrusion moulding with other shaping operations combined with joining, lining or laminating
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • F16L59/10—Bandages or covers for the protection of the insulation, e.g. against the influence of the environment or against mechanical damage
    • 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
    • F16L59/153—Arrangements for the insulation of pipes or pipe systems for flexible 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/13—Articles with a cross-section varying in the longitudinal direction, e.g. corrugated pipes
    • 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
    • B29L2023/18—Pleated or corrugated hoses

Definitions

  • the invention relates to a method for producing a thermally insulated conduit which comprises at least one inner tube, a plastic corrugated outer tube spaced apart therefrom and a foamed plastic layer filling the space between inner tube and outer tube, wherein the inner tube is initially foamed and foamed over Inner tube, the outer tube is extruded. Furthermore, the invention relates to a thermally insulated, corrugated conduit and a system for carrying out the method.
  • ® CALPEX known pipe for heat supply in a dimensioning with an outer pipe diameter of 162 mm, a bending radius of 1.2 meters.
  • an even smaller bending radius of the thermally insulated conduit is desired.
  • a method for the formation of thermally insulated plastic pipes in which coaxial with an inner tube, an outer plastic tube with only 0.3 to 0.5 mm wall thickness is extruded, said outer tube by means of a vacuum applied to like a corrugator machine for plastics corrugated pipe production, it is pulled into the molds by the vacuum.
  • a propellant-containing PE foam is extruded into the cavity between the outer thin tube and the inner tube, which foam fills the cavity.
  • the invention is based on the object to improve a thermally insulated conduit and its manufacturing process.
  • the deep undulation by pressing is preferably carried out directly after the finished extrusion of the outer tube, after which the conduit has a temperature which allows the plastic deformation with the forming tools.
  • the finished extruded line pipe is tempered to a suitable temperature on the route up to the deep undulation, e.g. through a spray bath with water.
  • the finished extruded pipe can reach the optimum tool for pressing the Tiefenwellung in the tools provided.
  • a conventionally obtained first undulation may already be produced in the foamed insulation, as described in EP-A-0 897 788, wherein the deep undulation after extrusion according to the present invention reshapes and deepens this first corrugation.
  • the procedure according to the first variant, in which therefore the shaping with the deep undulation after the extruder takes place on an already corrugated conduit, is preferred, since the corrugation during foaming and the subsequent extrusion of the outer tube to this first corrugation usually have an increased material thickness of the outer tube in the troughs results.
  • the corrugation depth is equal to or greater than 4 mm and is thus at least 33% larger than at
  • ® mentioned CALPEX conduit which is made according to the prior art. Particularly preferred is a corrugation depth of 4 to 10 mm.
  • a corrugation depth 4 to 10 mm.
  • the shapes used for the deep undulation are cooled, in particular provided with a water cooling.
  • the forms are provided with channels which allow the injection of air to assist in demolding. The object is further achieved with a conduit according to the invention.
  • Figure 1 shows schematically a system for carrying out the method
  • Figure 2 shows schematically the generation of the corrugated final shape
  • FIG. 3 is a partially sectioned view of a preferred embodiment of the conduit FIG. 1 shows from the supply roll 1 to and with the extruder 12 the arrangement known from EP-A-0 897 788 for the production of a heat-insulated pipe.
  • an inner tube 2 is continuously withdrawn from the storage drum 1.
  • the means for stripping or conveying in the production direction are not shown, since such means are known in the art.
  • the inner tube can be a plastic tube or even a metal tube and it can be smooth or wavy.
  • an inner tube 2 of cross-linked polyethylene is used.
  • the inner tube 2 can be guided by a pair of caliber rollers 3 whose rollers are driven.
  • the caliber roller pair 3 is preferably displaceable transversely to the direction of manufacture or withdrawal direction in two mutually perpendicular directions.
  • a foaming plastic mixture is introduced, in particular polyurethane-based or polyethylene-based, e.g. by means of the nozzle 7.
  • the closed slotted tube is inserted into a mold 9, which is formed from a plurality of mold halves 9a and 9b, which together form a "wandering shape" for the provided with the insulating layer under film 5 inner tube.
  • the surfaces of the mold halves 9a and 9b facing the film 5 or the slot pipe 6 can have a corrugated profile into which the film 5 is formed as a result of the foaming pressure.
  • the tube 10 emerging from the mold 9 has a corrugated surface.
  • the film 5 facing surfaces of the mold halves 9a and 9b may also be smooth.
  • the emerging from the mold 9 tube 10 has in this Trap a smooth surface.
  • the mold 9 could also be replaced by a stationary hollow cylindrical mold.
  • the tube 10 can then pass through the known from EP-A-O 897 788 X-ray device 11, by means of which the tube 10 is continuously checked for an exactly central position of the inner tube.
  • the outer tube 13 made of plastic is extruded onto the tube 10 by means of an extruder 12. It is produced in a known manner, a vacuum, which causes the concerns of the outer tube on the foamed tube 10.
  • the outer tube 13 which may also be referred to as outer jacket, applies to the corrugation of the tube.
  • the outer jacket lies around the smooth tube and is then also smooth. Due to its high temperature obtained by the extrusion, the outer jacket adheres to the plastic film 5.
  • the deep corrugation is introduced into the finished extruded conduit, resulting in a continuous production.
  • the deep undulation takes place by pressing the corrugated form into the conduit. This is done, for example, so that at a distance from the extruder 12, which may be eg 3-4 m, the deep corrugation is introduced according to the present invention by molding tools 16-21. This introduction takes place in the tube 10 provided with the outer tube 13, which is still deformable due to the process heat through the foaming and the extrusion.
  • the process heat of the preceding production steps of foaming and of extrusion can be utilized or it can be ensured by means of heating or cooling means that the tube 10, 13 still has a temperature upon entry into the molding tools, which presses in the deep corrugation in the Conduit allowed.
  • a spray bath 23 which brings the finished extruded conduit to the appropriate temperature for the Tiefenwellung and holds.
  • the temperature depends on the plastic material of the conduit and is therefore easily determinable by the skilled person or can be determined by experiments.
  • the molding tools used for introducing the deep corrugation may in turn be, for example, endless, revolving shaping tools, as have been shown for the molding tool 9 during the foaming or other molding tools known to the person skilled in the art. An example of other molding tools will be explained below.
  • the injection of the deep corrugation by means of molding tools can also be carried out in a separate production step, after the extruded conduit has been cooled and temporarily stored, so that a discontinuous production results. However, this then requires heating the conduit from the storage temperature to the temperature that allows the deep corrugation to be pressed in.
  • a first pair of mold halves 18 and 19 of the molds is provided with drive means 16, which cause the movements of the mold halves 18 and 19 described below.
  • the drive means 17 are provided for the mold halves 20 and 21, the drive means 17 are provided.
  • the drive means 16 and 17 can be configured pneumatically, hydraulically and / or by electric motor or in some other way.
  • the specific embodiment of this drive means is a professional measure for the skilled person due to the below described movement requirements and will not be further described here.
  • the pipe After leaving the mold halves 20 and 21, the pipe is finished with the Tiefenwellung. It can be passed through a cooling station, not shown, and can be removed by a tape and wound on a drum.
  • Figure 2 shows the mold halves 18-21 without the drive means. The movements of the mold halves caused by these are shown by the arrows AD.
  • the tube 10 with the inner tube 2, the foamed plastic insulation 15, which has on its outer side the film tube 6 and extruded outer tube 13 is in the figure as it emerged from the extruder 12. In this case, without undulation as a smooth tube.
  • the mold halves 18 and 19 bring now with their only partially apparent fittings 18 'and 19' from the two sides of the tube ago the deep curl into this, while the mold halves 20 and 21 with their only partially apparent form pieces 20 'and 21' bring in the deep undulation from above and from below.
  • the shapes are dimensioned so that all around a uniform Tiefenwellung for the conduit 22 results.
  • the procedure is such that the mold half 19 is driven in the direction of arrow a and the mold half 18 is driven in the opposite direction of the arrow a, so that the mold halves close and cause the corresponding shaping of the still hot and deformable tube 10.
  • the closing and closed mold halves 18 and 19 move in the direction of the arrow b with the production rate of emerging from the extruder tube 10 with.
  • the corresponding travel path is executed, which can be the case, for example, after 3 seconds to 5 seconds or more residence time of the tube 10, then the mold halves 19 and 18 move apart again at the end of the travel path b, which causes the mold half 19 to move conditioned in the direction of the arrow c and for the mold half 18 an opposite movement.
  • Figure 2 shows this position of moving apart of the mold halves 18 and 19. By these, the lateral portions of the tube 13 have been formed. Contrary to the illustration in the drawing are the upper and bottom portions of the tube 13 is not yet formed, but in the drawing, this is shown differently, so that the molding through the mold halves is basically better visible.
  • the upper and lower shaping takes place only through the mold halves 20 and 21, which will be described below. From the position shown, the mold halves 18 and 19, a process in the direction of arrow d, wherein this is done at a higher speed than the production speed of the conduit 22 corresponds.
  • the mold halves 18 and 19 move so far in the direction d, that at the next closing in the direction of arrow a or in the opposite direction, the still undeformed lateral portions of the tube are formed. It can be provided that the first shaft step of the mold in the production direction always engages exactly in the last shaped shaft.
  • the mold with the mold halves 20 and 21, which form the corrugation on the top and bottom, works in the same way. There is a closure in the direction of arrow a or in the opposite direction, so that the two mold halves 20 and 21 form the closed shape. Then the process takes place in the direction of arrow b during the same residence time as for the mold halves 18 and 19. Thereafter, the demolding takes place in the direction of arrow c or in the opposite direction and the rapid retraction of the two mold halves in the direction of arrow d. These movements are of course synchronized with the movements of the mold halves 18 and 19, so that all mold halves together perform the process in the direction of the arrows b or together the rapid return in the direction of the arrows d.
  • the mold halves are preferably cooled, in particular by the provision of fluid channels in the mold halves, into which a cooling fluid (preferably water) is introduced into the mold halves via at least one supply port (not shown) and discharged via a drain port (not shown) can. Further, it is preferred if the mold halves are provided with air passages and a connection for compressed air, so that in order to support the demolding of the deep corrugated tube compressed air in the mold space of the mold halves is inflatable.
  • a cooling fluid preferably water
  • Figure 3 shows a correspondingly shaped finished conduit 22, wherein like reference numerals as used previously refer to like parts.
  • the deep undulation with the wave troughs 25 and the upper sides 26 lying therebetween can be seen.
  • the deep corrugation extends as can be seen deep into the insulation layer of the conduit.
  • the illustrated shape, in which the troughs 25 are substantially U-shaped and the topsides 26 are substantially planar. Other shapes are possible.
  • the depth t of the wave trough which can be seen in the cross section of FIG. 3, is preferably 4 mm or more from the top side 26 of the conduit tube. In particular, a range of 4 to 10 mm is preferred.
  • Such a deep undulation can be pressed into the pipe with forming tools and leads to a very good bendability of the pipe. This can be done in the manner previously described. Preference is given to the pipe 10 has been curled before the extruder 12 in the manner explained known, so that the left in Figure 2 before the mold halves 18 and 19 apparent portion of the tube 13 would have a corrugation, which, however, is less deep than that corrugation generated with the forming tools 18-21.
  • the troughs 25 are then preferably introduced where already the troughs have been generated due to the molds 9.
  • the introduction of the deep corrugation in each case takes place precisely in a trough of the previously corrugated conduit can preferably be ensured by the fact that a detection device is provided which detects the existing corrugation in front of the forming tools and controls the forming tools in such a way that they Pressing in the deep undulation adjusted to the previous undulation.
  • a detection device 30 detects the corrugation, in this example already the corrugation of the foamed pipe 10 in front of the extruder. This can be done, for example, optically or by ultrasound by detecting the wave troughs, for example by a distance measurement, or can also be done mechanically.
  • the position of the respective wave trough (or alternatively or additionally of the wave crest) can then be given as an input value to the control 31 of the forming tools.
  • This controls the drive means 16, 17 of the molds such that the deep-troughs are pressed in by the forming tools exactly at the location of the wave troughs of the pre-corrugated pipe 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Thermal Insulation (AREA)

Abstract

L'invention concerne un conduit (22) isolé thermiquement, un tuyau intérieur revêtu de mousse (2), sur lequel un tuyau extérieur (13) a été appliqué par extrusion, étant usiné au moyen d'outils de formage (16-21) en aval de l'extrudeuse (12), afin de présenter une ondulation suffisamment profonde. On obtient ainsi un conduit à faible rayon de courbure.
EP10701191A 2009-01-29 2010-01-27 Procédé de fabrication d'un conduit isolé thermiquement Withdrawn EP2382075A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10701191A EP2382075A1 (fr) 2009-01-29 2010-01-27 Procédé de fabrication d'un conduit isolé thermiquement

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09001217A EP2213440A1 (fr) 2009-01-29 2009-01-29 Procédé de fabrication d'un conduit isolé thermiquement
PCT/CH2010/000021 WO2010085906A1 (fr) 2009-01-29 2010-01-27 Procédé de fabrication d'un conduit isolé thermiquement
EP10701191A EP2382075A1 (fr) 2009-01-29 2010-01-27 Procédé de fabrication d'un conduit isolé thermiquement

Publications (1)

Publication Number Publication Date
EP2382075A1 true EP2382075A1 (fr) 2011-11-02

Family

ID=40786476

Family Applications (2)

Application Number Title Priority Date Filing Date
EP09001217A Withdrawn EP2213440A1 (fr) 2009-01-29 2009-01-29 Procédé de fabrication d'un conduit isolé thermiquement
EP10701191A Withdrawn EP2382075A1 (fr) 2009-01-29 2010-01-27 Procédé de fabrication d'un conduit isolé thermiquement

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP09001217A Withdrawn EP2213440A1 (fr) 2009-01-29 2009-01-29 Procédé de fabrication d'un conduit isolé thermiquement

Country Status (6)

Country Link
US (1) US20110308659A1 (fr)
EP (2) EP2213440A1 (fr)
KR (1) KR20110124218A (fr)
CN (1) CN102300693B (fr)
RU (1) RU2527783C2 (fr)
WO (1) WO2010085906A1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9492957B2 (en) 2011-04-27 2016-11-15 Basf Se Extruded plastics profiles comprising continuously introduced insulation elements
CA2834380A1 (fr) * 2011-04-27 2012-11-01 Basf Se Profiles extrudes en matiere plastique, contenant des elements isolants introduits en continu
CH707764A2 (de) 2013-03-06 2014-09-15 Brugg Rohr Ag Holding Wärmegedämmtes gewelltes Leitungsrohr.
CH710709A1 (de) 2015-02-11 2016-08-15 Brugg Rohr Ag Holding Leitungsrohr mit thermischer Dämmung.
US10730229B2 (en) * 2015-09-11 2020-08-04 Watts Water Technologies, Inc. Method and system for producing a pre-insulated pipe, and pre-insulated pipe
US10859197B2 (en) * 2016-04-18 2020-12-08 Rockwool International A/S Method to produce an insulating pipe section for pipeworks and a pipe section
CH712780B1 (de) 2016-07-20 2020-03-13 Brugg Rohr Ag Holding Thermisch gedämmte Mediumrohre mit HFO-haltigem Zellgas.
DE202017007631U1 (de) 2016-07-20 2023-12-07 Brugg Rohr Ag Holding Thermisch gedämmte Mediumrohre mit HFO - haltigem Zellgas
US10293527B2 (en) 2016-08-02 2019-05-21 Thermacor Process, Inc. Continuous method for producing pre-insulated piping
US10293528B2 (en) 2016-08-02 2019-05-21 Thermacor Process, Inc. Continuous method for producing pre-insulated piping
CH714968A1 (de) 2018-05-07 2019-11-15 Brugg Rohr Ag Holding Verfahren und Vorrichtung zur Herstellung eines wärmegedämmten Leitungsrohrs.
CN109340475B (zh) * 2018-11-21 2023-09-12 航天晨光股份有限公司 一种绝缘保温夹套金属软管
WO2020121210A1 (fr) * 2018-12-11 2020-06-18 Ecotech S.R.L. Tube à isolation thermique
CN114347523B (zh) * 2021-12-22 2024-07-02 荥阳市坛山热力保温管道有限公司 一种保温管生产线
EP4324632B1 (fr) * 2022-08-15 2024-12-11 Brugg Rohr AG Holding Procédé et installation de fabrication pour la fabrication d'une conduite isolée thermiquement
DE102023136192A1 (de) 2023-12-21 2025-06-26 REHAU Industries SE & Co. KG Verfahren zur kontinuierlichen Herstellung eines wärmegedämmten Wellrohrs sowie dadurch erhaltenes wärmegedämmtes Wellrohr

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929409A (en) * 1985-03-12 1990-05-29 Oy Uponor Ab Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE381001B (sv) * 1973-10-22 1975-11-24 Erik G W Nordstroem Forfarande och anordning for framstellning av kamflensror av plast
DE2459830C2 (de) * 1974-12-18 1984-02-09 kabelmetal electro GmbH, 3000 Hannover Verfahren zur kontinuierlichen Herstellung thermisch isolierter Leitungsrohre
DE2700478C2 (de) * 1977-01-07 1986-07-10 Kabel- und Metallwerke Gutehoffnungshütte AG, 3000 Hannover Verfahren zur Herstellung eines wärme- und schallisolierten Leitungsrohres
DE2803708C3 (de) * 1978-01-28 1980-09-25 Reifenhaeuser Kg, 5210 Troisdorf Anlage zur Herstellung eines flexiblen Mehrlagenisolierrohres
DE3031839C2 (de) * 1980-08-23 1983-10-20 Dynamit Nobel Ag, 5210 Troisdorf Verfahren zum kontinuierlichen Herstellen einer gemusterten Bahn aus thermoplastischem Kunststoff
CA1226710A (fr) * 1986-06-04 1987-09-15 Lupke, Manfred A. A. Dispositif pour la production de canalisations ondulees a double paroi
ES2019279B3 (es) * 1986-11-13 1991-06-16 Unicor Gmbh Rahn Plastmaschinen Dispositivo para la fabricacion continua de tubos con paredes perfiladas transversales
DE3702585A1 (de) * 1987-01-29 1988-08-11 Marquet & Cie Noel Verfahren und vorrichtung zur kontinuierlichen umhuellung von voll- oder hohlprofilen, insbesondere von rohren, mit einem extrudierten schaumstoffmantel aus thermoplastischem kunststoff, sowie auf diese weise hergestellte produkte
DE4318514C1 (de) * 1993-06-03 1994-08-18 Drossbach Gmbh & Co Kg Vorrichtung zum Herstellen von Wellrohren aus thermoplastischem Kunststoff
DE19507110A1 (de) * 1995-03-02 1996-09-05 Becker Plastics Gmbh Verfahren und Vorrichtung zur Herstellung von wärmegedämmten Kunststoffrohren
DE69614125T2 (de) * 1995-06-26 2001-11-29 Uponor Innovation Ab, Fristad Mehrschichtiges Rohr
DE19629678A1 (de) 1996-07-23 1998-01-29 Brugg Rohrsysteme Gmbh Verfahren zur Herstellung eines wärmeisolierten Leitungsrohres
US6682689B1 (en) * 2000-05-03 2004-01-27 Jpmorgan Chase Bank Flexible plastic article and method of manufacturing the same
NL1015760C2 (nl) * 2000-07-20 2002-01-24 Thermaflex Internat Holding B Werkwijze en inrichting voor het vervaardigen van ge´soleerde buis.
US6641884B1 (en) * 2000-08-09 2003-11-04 Teleflex Fluid Systems Corrugated hose assembly
FI20020280L (fi) * 2002-02-12 2003-08-13 Uponor Innovation Ab Putkistoelementti ja menetelmä ja laitteisto sen valmistamiseksi
DE202006009337U1 (de) * 2006-06-14 2006-08-17 Brugg Rohr Ag, Holding Wärmegedämmtes Leitungsrohr
FI125098B (fi) * 2007-05-23 2015-05-29 Uponor Innovation Ab Putkistoelementti ja menetelmä ja laitteisto sen valmistamiseksi

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4929409A (en) * 1985-03-12 1990-05-29 Oy Uponor Ab Method in manufacturing a heat insulated tube and a device in extruders for manufacturing the tube

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RU2011135788A (ru) 2013-03-10
EP2213440A1 (fr) 2010-08-04
WO2010085906A1 (fr) 2010-08-05
KR20110124218A (ko) 2011-11-16
US20110308659A1 (en) 2011-12-22
RU2527783C2 (ru) 2014-09-10
CN102300693B (zh) 2014-04-09

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