WO2008132120A1 - Procédé de fabrication d'un tuyau composite en plastique renforcé par du métal et tuyau composite en plastique renforcé par du métal - Google Patents

Procédé de fabrication d'un tuyau composite en plastique renforcé par du métal et tuyau composite en plastique renforcé par du métal Download PDF

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Publication number
WO2008132120A1
WO2008132120A1 PCT/EP2008/054952 EP2008054952W WO2008132120A1 WO 2008132120 A1 WO2008132120 A1 WO 2008132120A1 EP 2008054952 W EP2008054952 W EP 2008054952W WO 2008132120 A1 WO2008132120 A1 WO 2008132120A1
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WO
WIPO (PCT)
Prior art keywords
metal
tube
plastic
metal tube
adhesive
Prior art date
Application number
PCT/EP2008/054952
Other languages
German (de)
English (en)
Inventor
Eberhard Kertscher
Original Assignee
The Thomas Machines S.A.
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 The Thomas Machines S.A. filed Critical The Thomas Machines S.A.
Priority to DE112008001067T priority Critical patent/DE112008001067B4/de
Publication of WO2008132120A1 publication Critical patent/WO2008132120A1/fr

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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
    • 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
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/211—Bonding by welding with interposition of special material to facilitate connection of the parts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/244—Overlap seam welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K26/00—Working by laser beam, e.g. welding, cutting or boring
    • B23K26/20—Bonding
    • B23K26/21—Bonding by welding
    • B23K26/24—Seam welding
    • B23K26/26—Seam welding of rectilinear seams
    • B23K26/262—Seam welding of rectilinear seams of longitudinal seams of tubes
    • 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
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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
    • B29D23/001—Pipes; Pipe joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B1/00—Layered products having a non-planar shape
    • B32B1/08—Tubular products
    • 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
    • B29C48/0017—Combinations of extrusion moulding with other shaping operations combined with blow-moulding or thermoforming
    • 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
    • B29C48/0022—Combinations of extrusion moulding with other shaping operations combined with cutting
    • 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
    • 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
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • 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

Definitions

  • the present invention relates to a method for producing a metal-reinforced plastic composite pipe and a metal-reinforced plastic composite pipe produced by this method. Furthermore, it relates to a device with which this method can be carried out.
  • metal I reinforced plastic tube also called composite pipes, which consist of several layers, of which at least one layer of metal is formed. Due to its significantly lower thermal expansion compared to plastic, this metal layer ensures a significantly improved length consistency with temperature fluctuations compared with a plastic pipe.
  • an adhesive is applied to a plastic inner tube and the adhesive layer is used to form a metal sheath which is welded together into a tube and consists of aluminum or steel.
  • the welded metal tube is compacted after application to the plastic tube, so radially compressed, so that it rests evenly over its circumference on the plastic tube.
  • the metal tube is heated to the extent that the underlying adhesive melts and so glued the inner plastic tube to the outer metal tube. Subsequently, another on the metal tube Adhesive layer and applied to it a plastic layer.
  • Such composite pipes are gas-tight, can be bent without forming wrinkles, and are stabilized in the longitudinal direction in contrast to a plastic tube. This means that when heated only a small axial expansion occurs. Disadvantage of such composite pipes, however, is the relatively high production price.
  • composite pipes are known and available on the market, which are also provided with a thin-walled metal tube, but this metal tube is not welded, but is formed around the inner plastic tube around, with the longitudinal edges of the metal tube either overlap or abutment abutting ,
  • the manufacturing process of these known composite pipes is similar to the manufacturing process described above, but a compaction is not possible as in the welded composite pipes.
  • Object of the present invention is to provide a method for producing a metal-reinforced plastic composite pipe, which allows the cost-effective production of metal-reinforced plastic composite pipes. Furthermore, it is an object of the present invention to provide a corresponding inexpensive producible metal I reinforced plastic composite pipe.
  • the method for producing a metal-reinforced plastic composite pipe has the steps specified in claim 1, in particular:
  • Plastic pipe e) deforming the cross-sectionally C-shaped metal strip to a the
  • Metal tube overlap each other; f) applying a second adhesive layer to the outer circumference of the
  • Metal pipe g) Compressing the metal tube in the radial direction to the inner circumference of
  • This method makes it possible to produce metal-reinforced plastic composite pipes in a simple, cost-effective manner, which are reliably stabilized in the longitudinal direction and have only a very small elongation compared to a pure plastic pipe.
  • the adhesive is also introduced between the mutually overlapping longitudinal edge regions of the metal tube, so that after Curing or solidification of the adhesive and the metal tube is stabilized in the circumferential direction.
  • the overlapping longitudinal edge regions of the metal tube can also be welded together in an additional method step i), in particular by means of a laser welding method.
  • step g) The step of compressing the metal tube in the radial direction in step g) is carried out according to the invention in an annular compression nozzle.
  • a compression nozzle allows the continuous production of the plastic composite pipe according to the invention with exact constancy of Au .
  • step f) The application of at least a portion of the second adhesive layer in step f) is carried out according to the invention immediately before the compression nozzle for compressing the metal tube.
  • the application of the adhesive in front of the compression nozzle causes the adhesive to act as a lubricant upon passage of the metal tube inner plastic tube through the compression nozzle so as to allow low friction passage of the metal tube inner plastic tube through the compression nozzle Pass through the compression nozzle and thus a higher production speed can be achieved.
  • the application of the second adhesive layer in step f) preferably takes place by means of two flow paths, whose mouth regions extend to the outer circumference of the
  • Metal tube are spaced apart in the axial direction.
  • a first flow path can open directly in front of the compression nozzle to the outer circumference of the metal tube, and a second flow path opens inside or behind the compression nozzle.
  • the unit of plastic pipe and metal pipe provided with the adhesive layers is heated as it passes through the compression nozzle.
  • the partially already frozen or tough Adhesive of the first adhesive layer heated and re-softened and reactivated, so that the bonding of the inner tube is ensured with the metal tube.
  • the method is carried out continuously with continuous advancement of the inner plastic tube and the metal strip.
  • the metal strip can be unwound, for example, from a spool. To ensure uninterrupted operation, provision may be made for allowing the tape end of a fully unwound spool to be connected to the tape leader of a new spool.
  • step d) may also be carried out before step c) or before step b).
  • the object of the plastic composite pipe is achieved by the specified in claim 11 metal-reinforced plastic composite pipe.
  • This plastic composite pipe consists of a radially inner plastic tube whose outer circumference is firmly bonded to the inner circumference of a metal tube, wherein the longitudinal edges of the metal tube overlap each other and glued or welded together and wherein a plastic jacket surrounds the outer periphery of the metal tube and is glued thereto.
  • a metal-reinforced plastic composite pipe is inexpensive to manufacture continuously and has a high after curing or solidification of the adhesive
  • the metal tube is formed from a perforated metal sheet.
  • This variant of the plastic composite pipe according to the invention makes it possible that, when a gas diffusion through the wall of the plastic composite tube inside gases formed can pass freely through the holes of the metal shell to the outside, so that the formation of gas bubbles in the wall under the metal shell is avoided .
  • An apparatus for producing a metal-reinforced plastic composite pipe according to the method of the invention is specified in claim 13.
  • Fig. 1 is a perspective view of a partially cut metal reinforced plastic composite pipe according to the invention
  • FIG. 2 shows a cross section through the metal-reinforced plastic composite pipe according to FIG. 1;
  • FIG. 2A shows an enlarged detail of a cross section through the metal-reinforced plastic composite pipe according to FIG. 1 in an alternative embodiment
  • Fig. 3 is a perspective view of an alternative embodiment of the metal reinforced plastic composite pipe according to the invention.
  • FIG. 4 shows a schematic representation of a production line for the production of the metal-reinforced plastic composite pipe according to the invention by the method according to the invention
  • FIG. 5 shows a longitudinal section through a third manufacturing stage of the production line shown in FIG. 4; 6 shows a cross section through the third manufacturing stage of FIG. 5 in FIG
  • Fig. 7 shows a longitudinal section through the compression stage of the production line of FIG. 4 and
  • FIG. 8 shows an enlarged detail from FIG. 7.
  • Fig. 1 shows a perspective view of a partially cut metal I reinforced plastic composite tube 1 according to the present invention with an inner plastic tube 10, an applied on the outer circumference of the inner plastic tube 10 first adhesive layer 12, one applied to the first adhesive layer 12, the inner plastic tube 10 surrounding metal tube 14, a surrounding the outer periphery of the metal tube 14 second adhesive layer 16, and a force applied to the second adhesive layer 16, the metal tube 14 surrounding the plastic sheath 18th
  • the longitudinal edges 13, 15 of the metal jacket 1 1 bent from a metal strip 11 to the metal pipe 14 overlap one another, wherein between the longitudinal edges 13, 15 adjacent longitudinal edge portions of the metal tube 14 adhesive 17 from the first adhesive layer 12 and / or the second adhesive layer 16 has penetrated.
  • the metal tube 14 with the inner plastic tube 10 and the outer plastic sheath 18 are bonded by the two adhesive layers 12, 16, but the metal tube not welded together at its longitudinal edges obtained by the adhesive 17 after curing the desired metal tube stability.
  • FIG. 2A shows an enlarged detail from a cross-sectional view, which corresponds to the view of FIG. 2.
  • it is a variant in which no adhesive has penetrated between the overlapping longitudinal edge regions of the metal tube 14.
  • the overlapping longitudinal edge areas are virtually free of play on each other and are welded together by means of a laser. In cross section, the weld 19 is visible.
  • FIG. 3 alternative embodiment of the plastic composite pipe 1 'according to the invention corresponds in construction to the plastic composite pipe 1 shown in Fig. 1, but wherein the metal tube 14' is formed of a perforated metal sheet and so distributed in the longitudinal direction and over the circumference These holes 14 "allow gas diffusion through the wall of the plastic composite tube, allowing gases formed inside to pass outwardly through the holes of the metal shell, thus creating gas bubbles in the wall is avoided under the metal jacket.
  • FIG. 4 shows a production line 100 for producing a plastic composite pipe 1 according to the method according to the invention.
  • the plastic composite pipe 1 can be on this production line 100 and the metal-reinforced plastic composite pipe 1 'finished.
  • the production line 100 consists of a first section 101, in which the deformation steps take place, and a second section 102, in which the extrusion of the plastic jacket takes place.
  • the first section 101 has a mechanical substructure 103 on which the individual production stations are mounted.
  • the second section 102 also has a mechanical substructure 104 on which the extruder 105 is mounted.
  • the material passage takes place in the production line 100 in FIG. 4 from right to left and is symbolized by the arrow M.
  • Fig. 4 from right to left) initially provided a first manufacturing stage 1 10.
  • the first manufacturing stage 1 10, the plastic tube 10 and the metal strip 1 1 are supplied from the right.
  • the metal strip 11 brought close to the outer periphery of the plastic tube 10 and aligned in a parallel transport position to the axis X of the plastic pipe 10.
  • the plastic pipe 10 and the metal strip 11 then pass through a second manufacturing stage 120 in which the metal strip 1 1 passes through several roll forming devices 121, 122, 123 and 124 and is deformed into a bent metal strip 11 'having the shape of a horizontal "C" , which partially surrounds the plastic tube 10 (see Fig. 6).
  • the roll forming devices may be arranged horizontally or vertically.
  • the plastic tube 10 emerging from the second production stage 120 and the metal band 11 'deformed in the second manufacturing stage 120 then enter a third production stage 130 of the first section 101 of the production line 100.
  • the third manufacturing stage 130 is shown in detail in FIGS. 5 and 6.
  • FIG. 5 shows, partially in section, an adhesive applicator 131 to which a first adhesive C1 is fed in a manner known to those skilled in the art.
  • the adhesive C1 is heated in a heating head of the adhesive applicator 131 to a temperature of about 220 ° C and passed to a below the heating head 132 applicator sleeve 133 through which the plastic tube 10 passes.
  • the applicator sleeve 133 is provided over its circumference with a plurality of passage openings 134 which open into an annular space 135 which is formed between the outer periphery of the plastic tube 10 and the inner periphery of the applicator sleeve 133.
  • the passage openings 134 are connected to an adhesive channel 136 in the interior of the heating head 132. In this way, the heated in the heating head 132 adhesive flow through the through holes 134 in the annular space 135 through which the plastic tube 10 passes.
  • the plastic tube 10 is wetted at its outer periphery with the adhesive C1.
  • the bent metal strip 1 1 'runs below the adhesive applicator 131 past this.
  • the longitudinal edges 13, 15 of the metal tube overlap each other.
  • two or more of the fourth production stages 140 are provided one behind the other.
  • Longitudinal edge areas of the metal tube ensures that they stick together.
  • the application of adhesive to the longitudinal edges of the metal tube 14 can also be done in the entrance area of the 5th manufacturing stage using the adhesive applicator 151. If the overlapping longitudinal edge regions of the metal tube are to be welded later, no adhesive is introduced in the interspace between the overlapping longitudinal edge regions of the metal tube.
  • the third fabrication stage 130, the fourth fabrication stage (s) 140, and the fifth fabrication stage 150 are immediately, ie, without significant spacing therebetween, one behind the other, such that a decrease in the adhesiveness of the adhesive of the first adhesive layer applied in the third fabrication stage to the second fabrication stage Passing through the fifth manufacturing stage 150 (for example, by setting) is minimized.
  • the fifth fabrication stage 150 shown in FIG. 7 has an adhesive applicator 151 which is substantially the same as the adhesive applicator 131 of the third fabrication stage and to which an adhesive C2 is supplied.
  • the adhesive C2 may be the same adhesive as the adhesive C1 or may be another Be adhesive.
  • the adhesive applicator 151 is provided with a heating head 152 which heats the adhesive C2 to a suitable flow temperature, for example also 220 ° C.
  • the adhesive applicator 151 is provided with an application and compression device 153.
  • the application and compression device 153 has a sleeve-like construction and the metal tube 14 and the plastic tube 10 provided with the first adhesive layer 12 pass through the sleeve-like application and compression device 153.
  • the application and compression device has a sleeve-like housing part 154, which is provided with a radial adhesive channel 155 which is in fluid communication with an adhesive channel 156 in the heating head 152.
  • the inner peripheral surface of the sleeve-like housing part 154 is formed in a cone shape with a decreasing diameter in the material flow direction M.
  • an inner conical sleeve 157 is used, which is formed on its outer circumference so conical that they against the
  • Inner cone of the sleeve-like housing part 154 can be brought to bear.
  • the inner conical sleeve 157 has an axial passage opening of constant diameter, wherein the diameter is larger than that of the metal tube 14.
  • the inserted into the sleeve-like housing part 154 inner conical sleeve 157 is screwed by a screwed into the rear opening of the sleeve-like housing part 154 threaded sleeve 158 against the pressed conical inner surface of the sleeve-like housing part 154 and fixed in this way.
  • an adhesive application and compression structure 159 is provided, which will be described below with reference to FIG.
  • FIG. 8 shows the front portion of the application and compression device 153 in an enlarged view.
  • the inner conical sleeve 157 is located with its front in the direction of material flow M at the end
  • This has an annular nozzle body 160, whose inner diameter, starting from the inner diameter of the inner cone sleeve 157 in the material flow direction conically tapered to an inner diameter which is slightly larger than the outer diameter of the supplied metal tube 14th
  • annular nozzle body 160 In the region of the taper of the inner diameter of the annular nozzle body 160 is provided with an inner circumferential groove 161, in which a plurality of
  • Adhesive channels 162 open, which are arranged distributed over the circumference and penetrate the annular nozzle body 160 substantially radially. On the radially outer rear side of the adhesive channels 162, these are in communication with a plurality of adhesive supply channels 163 formed between the conical outer periphery of the inner tapered sleeve 157 and the conical inner periphery of the sleeve-like housing portion 154, and on their rearward side into an outer circumferential groove 164 of the inner Conical sleeve 157 open, which is in fluid communication with the adhesive channel 155.
  • the adhesive C2 may therefore flow from the adhesive channel 155 via the outer annular groove 164 in the Klebstoffzu thoroughlykanäle 163 and through the adhesive channels 162 in the inner annular groove 161, from which the adhesive C2 reaches the outer periphery of the metal tube 14 and wetted.
  • the applied on the outer circumference of the metal tube 14 adhesive acts during
  • the adhesive acts here not only as a lubricant, but also ensures due to the above-mentioned hydrodynamic pressure for a self-centering of the tube 14 in the compression nozzle 165, 168.
  • a direct contact of the metal tube 14 with the inner walls of the compression nozzle 165, 169 is thus in avoided in any case, and caused by mechanical friction abrasion of the metal tube on its outer surface can not occur.
  • the metal tube When passing through the metal tube 14 through the compression nozzle 165, 168, the metal tube is radially compressed so that the metal tube 14 is firmly pressed against the plastic tube 10 located on the first adhesive layer 12 and thus connected to the plastic tube 10 to a tube unit 19.
  • the metal tube is simultaneously heated by means of a resistance heater, designated 169.
  • a further annular groove 166 is formed on the inner circumference of the adhesive application and compression structure 159.
  • This further inner circumferential annular groove 166 is in fluid communication with the adhesive supply channels 163 via an annular adhesive channel 167 running obliquely to the longitudinal axis X.
  • both the first inner circumferential annular groove 161 in the material flow direction M and the second inner circumferential annular groove 166 communicate with the adhesive channel 155 and are supplied with adhesive C2 from a common source.
  • the amount of here applied adhesive can be adjusted by adjusting the opening cross-section of the annular adhesive channel 167 to achieve a desired layer thickness of the adhesive.
  • This second adhesive layer also acts as a lubricant when passing through the adjoining second section 168 of the compression nozzle. With a correspondingly thick adhesive layer, any irregularities in the outer diameter of the metal tube are compensated.
  • the compression nozzle 165, 168, preferably its second portion 168, may be heated, for example by a resistor, to heat and re-soften the adhesive of the first adhesive layer 12 by heating the composite tube passing through the compression nozzle herein its adhesive ability to reactivate.
  • Some heating already occurs due to the friction between the lubricant acting as a lubricant, the metal tube 14 and the inner walls of the compression nozzle 165, 168.
  • the resulting friction can contribute to a heating of the adhesive and thus to an activation of its adhesiveness.
  • a welding device 170 is optionally provided.
  • the two overlapping longitudinal edge regions of the metal tube 14 by means of this welding device 170 are welded together.
  • the welding device 170 comprises a laser which welds the two overlapping longitudinal edge regions through the outer adhesive layer.
  • the tube unit 19 provided with the second adhesive layer 16 then enters the extruder 105, in which the second adhesive layer 16 a Plastic jacket 18 is extruded. After passing through the extruder 105, the plastic composite pipe 1 according to the invention is completed.
  • a perforated metal strip may also be used, which is then formed into the perforated metal tube 14 'as shown in FIG. 3, wherein the above-described method steps for producing the plastic composite tube 1 are the same as for the plastic composite pipe 1 'with perforated metal pipe 14'.
  • the device according to the invention may also assume other than the above-described embodiments.
  • the device may in particular have features that represent a combination of the respective individual features of the claims.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Plasma & Fusion (AREA)
  • General Engineering & Computer Science (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'invention concerne un tuyau composite en plastique renforcé par du métal, un dispositif pour sa fabrication, ainsi qu'un procédé de fabrication comprenant les étapes consistant à : a) préparer un tuyau en plastique (10); b) amener une bande métallique (11) à proximité de la périphérie externe du tuyau en plastique (10); c) façonner la bande métallique (11) de telle sorte qu'elle entoure partiellement sous la forme d'un C le tuyau en plastique (10) à une certaine distance de sa périphérie externe; d) appliquer une première couche de colle (12) sur la périphérie externe du tuyau en plastique (10); e) façonner la bande métallique en forme de C en section transversale (11') en un tuyau métallique (14) entourant le tuyau en plastique (10), les arêtes longitudinales (13, 15) du tuyau métallique (14) se chevauchant; f) appliquer une seconde couche de colle (16) sur la périphérie externe du tuyau métallique (14); g) comprimer le tuyau métallique (14) dans le sens radial, afin de presser la périphérie interne du tuyau métallique (14) sur la périphérie externe du tuyau en plastique (10) munie de la première couche de colle (12); h) extruder une enveloppe en plastique (18) sur la périphérie externe du tuyau métallique (14) munie de la seconde couche de colle (16).
PCT/EP2008/054952 2007-04-27 2008-04-23 Procédé de fabrication d'un tuyau composite en plastique renforcé par du métal et tuyau composite en plastique renforcé par du métal WO2008132120A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112008001067T DE112008001067B4 (de) 2007-04-27 2008-04-23 Verfahren zur Herstellung eines metallverstärkten Kunststoff-Verbundrohrs und metallverstärktes Kunststoff-Verbundrohr

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00710/07 2007-04-27
CH00710/07A CH703688B1 (de) 2007-04-27 2007-04-27 Verfahren zur Herstellung eines metallverstärkten Kunststoff-Verbundrohrs und metallverstärktes Kunststoff-Verbundrohr.

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PCT/EP2008/054952 WO2008132120A1 (fr) 2007-04-27 2008-04-23 Procédé de fabrication d'un tuyau composite en plastique renforcé par du métal et tuyau composite en plastique renforcé par du métal

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WO2010066301A1 (fr) * 2008-12-11 2010-06-17 The Thomas Machines S.A. Tuyau composite plastique/métal permettant d'empêcher de manière fiable la formation de bulles dans le composite
CN104455781A (zh) * 2014-11-04 2015-03-25 常熟市浩通水利工程有限公司 一种多层复合塑料管
EP2668432A4 (fr) * 2011-01-24 2015-05-20 Maricap Oy Pièce de conduit de transport d'un système de transport pneumatique de matières et procédé de formation d'un raccord de conduit
CN104676237A (zh) * 2015-02-11 2015-06-03 宁波市鄞州得发铝型材配件有限公司 一种包塑铁管及其生产装置
WO2015082491A1 (fr) * 2013-12-06 2015-06-11 Bersch, Andreas Tuyau en matière plastique et son procédé de fabrication

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JPS586723A (ja) * 1981-07-03 1983-01-14 Nippon Steel Corp 断熱複層管の連続製造方法
EP0353977A2 (fr) * 1988-08-03 1990-02-07 KiTECHNOLOGY B.V. Dispositif de fabrication de tubes revêtus par des matières plastiques
EP1287973A1 (fr) * 2001-08-07 2003-03-05 FRÄNKISCHE ROHRWERKE GEBR. KIRCHNER GmbH & Co KG Appareil et procédé de fabrication de tubes multicouches du type plastique-métal-plastique

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Publication number Priority date Publication date Assignee Title
WO2010066301A1 (fr) * 2008-12-11 2010-06-17 The Thomas Machines S.A. Tuyau composite plastique/métal permettant d'empêcher de manière fiable la formation de bulles dans le composite
EP2668432A4 (fr) * 2011-01-24 2015-05-20 Maricap Oy Pièce de conduit de transport d'un système de transport pneumatique de matières et procédé de formation d'un raccord de conduit
WO2015082491A1 (fr) * 2013-12-06 2015-06-11 Bersch, Andreas Tuyau en matière plastique et son procédé de fabrication
CN106068179A (zh) * 2013-12-06 2016-11-02 迈克尔·塔普 合成材料管道和用于该合成材料管道的生产方法
RU2650139C1 (ru) * 2013-12-06 2018-04-09 Михаэль ТАППЕ Труба из синтетического материала и способ её изготовления
CN104455781A (zh) * 2014-11-04 2015-03-25 常熟市浩通水利工程有限公司 一种多层复合塑料管
CN104676237A (zh) * 2015-02-11 2015-06-03 宁波市鄞州得发铝型材配件有限公司 一种包塑铁管及其生产装置

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DE112008001067A5 (de) 2010-05-27
DE112008001067B4 (de) 2011-11-24

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