WO2001032401A1 - Method of making a spirally-wound tube - Google Patents

Method of making a spirally-wound tube Download PDF

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Publication number
WO2001032401A1
WO2001032401A1 PCT/FI2000/000936 FI0000936W WO0132401A1 WO 2001032401 A1 WO2001032401 A1 WO 2001032401A1 FI 0000936 W FI0000936 W FI 0000936W WO 0132401 A1 WO0132401 A1 WO 0132401A1
Authority
WO
WIPO (PCT)
Prior art keywords
section
weld joint
tube
stationary
thermoplastic profile
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.)
Ceased
Application number
PCT/FI2000/000936
Other languages
French (fr)
Other versions
WO2001032401A8 (en
Inventor
Seppo Takala
Marek Warcholinski
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.)
Uponor Infra Oy
Original Assignee
KWH Pipe Oy AB
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 KWH Pipe Oy AB filed Critical KWH Pipe Oy AB
Priority to HK03101095.9A priority Critical patent/HK1050506A1/en
Priority to JP2001534584A priority patent/JP4741771B2/en
Priority to US10/129,388 priority patent/US6939424B1/en
Priority to PL354516A priority patent/PL194867B1/en
Priority to DK00972935T priority patent/DK1237708T3/en
Priority to APAP/P/2002/002528A priority patent/AP1371A/en
Priority to AT00972935T priority patent/ATE306381T1/en
Priority to EP00972935A priority patent/EP1237708B1/en
Priority to BRPI0015472-5A priority patent/BR0015472B1/en
Priority to AU11493/01A priority patent/AU771065B2/en
Priority to MXPA02004076A priority patent/MXPA02004076A/en
Priority to DE60023179T priority patent/DE60023179T2/en
Priority to CA002383124A priority patent/CA2383124C/en
Publication of WO2001032401A1 publication Critical patent/WO2001032401A1/en
Publication of WO2001032401A8 publication Critical patent/WO2001032401A8/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/80—Component parts, details or accessories; Auxiliary operations
    • B29C53/8008—Component parts, details or accessories; Auxiliary operations specially adapted for winding and joining
    • B29C53/8091—Cutting the ends, surface finishing
    • 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
    • B29C53/56—Winding and joining, e.g. winding spirally
    • B29C53/58—Winding and joining, e.g. winding spirally helically
    • B29C53/78—Winding and joining, e.g. winding spirally helically using profiled sheets or strips

Definitions

  • This invention concerns a method of making a spirally-wound tube from a hollow thermoplastic profile having a substantially rectangular cross-section, which method comprises the steps of: winding the thermoplastic profile around a drum, joining adjacent loops together by welding, smoothing the outer weld joint by means of extra heat and a smoothing body resting against the weld joint, and feeding the tube axially forward by means of freely rotating, radial press rolls influencing the thermoplastic profile during the first winding around the drum.
  • the invention concerns also an apparatus for carrying out the method according to the preamble of Claim 4.
  • the welding burr on both the outer and the inner surface of the tube has to be of optimum size.
  • a customary welding drum makes it somewhat more difficult to control the size of the inner welding burr, and at the same time, there is a small risk that the surface of the inner weld joint is affected by the axial sliding of the tube along the drum as long as the plastic material is molten.
  • the object of the present invention is to solve these problems, which has been achieved by means of a method that is characterized in that the thermoplastic profile, when fed to the drum, comes onto a stationary first section comprising spaced sliding means arranged along the periphery, on which section welding is performed, after which the inner weld joint thus formed is arranged to run along a spiral groove running around the stationary section, whereby the inner weld joint, as well as the outer weld joint, is smoothed by means of extra heat and a stationary body lying against the weld joint, and, once both of the welded surfaces have been smoothed, the tube is transferred to a rotary driven drum section causing the tube to rotate and generating the winding motion of the thermoplastic profile.
  • the advantage of the method and apparatus according to the invention is, that the inner weld joint does not come into contact with the drum at all, until the joint surface has been smoothed and the plastic has hardened.
  • the invention results in a very even outer and inner joint surface.
  • Fig. 1 is a side view of an embodiment of the apparatus according to the invention, giving the basic details thereof,
  • Fig. 2 shows the apparatus shown in Fig. 1 seen from the right
  • Fig. 3 is a side view of another embodiment of the apparatus according to the invention.
  • a spirally-wound tube is made by feeding an extruded, hollow thermoplastic profile 1 , having a substantially rectangular cross-section, to an apparatus comprising a cylindrical drum 2, having an outer diameter corresponding to a desired inner diameter of the tube to be made.
  • the thermoplastic profile 1 is wound spirally around the drum 2, which, according to the invention, is divided into a stationary first section 3, where adjacent loops are welded together and where both of the surfaces of the formed weld joint are treated, and into a rotary driven, cylindrical second section 4, which is arranged to cause the tube made from the thermoplastic profile 1 to rotate and then simultaneously to pull the thermoplastic profile 1 around the stationary section 3 of the drum 2.
  • the plastic material is heated/melted in the welding zone by hot air, IR, halogen lamps or similar local heating, for example.
  • the stationary first section 3 comprises spaced sliding means 5 arranged along the periphery to facilitate the movement of the thermoplastic profile 1 over said section 3.
  • spaced sliding means 5 arranged along the periphery to facilitate the movement of the thermoplastic profile 1 over said section 3.
  • This pushing force is generated by continuously supplying the drum with new thermoplastic profile and thus forcing previously supplied loops away.
  • the thermoplastic profile 1 has been brought onto the stationary section 3 of the drum 2, it arrives to a welding station 8 where the thermoplastic profile 1 is joined to the nearest previous loop.
  • the welding station 8 comprises either a welding keel producing an inner 11 and an outer 12 weld joint at the same time or two separate welding means.
  • the thermoplastic profile 1 is transferred to a station provided with heating and smoothing means 9, 10 for the inner weld joint 11 inside the tube and to a station provided with similar heating and smoothing means 12 for the outer weld joint 13 on the tube.
  • the thermoplastic profile 1 runs about three times around the drum 2 before it has left the stationary section 3 thereof completely. All the stations 8, 9, 10, 12 mentioned above are placed one after another along the periphery of the stationary first section 3.
  • a groove 14 runs spirally around the stationary section 3, following the route along which the inner weld joint 11 moves during the rotation of the tube.
  • the stationary first section 3 consists of a number of axially oriented and freely rotating sliding rolls 5 arranged along the periphery of the drum 2 and extending along the entire length of the stationary first section 3.
  • the spiral groove 14 intended for the inner weld joint 11 of the tube to be made is an annular groove 14 made in the periphery of each sliding roll 5.
  • the annular grooves 14 in the sliding rolls 5 are axially spaced with respect to each other in such a way that they form a spiral groove around the first section 3, having a pitch corresponding to the pitch of the inner weld joint 11 of the tube to be made.
  • the stationary first section 3 comprises a steel shell provided with openings 15 for the sliding means 5 of the section along the periphery of the section and an opening 16 for the heating and smoothing means 9, 10 intended for the inner weld joint 11 inside the tube being made.
  • the sliding means 5 can be either axially oriented rolls having a peripheral annular groove 17 that coincides with the spiral groove 14 in the steel shell.
  • the sliding means 5 are sliding plates made of polytetrafluoroethylene or the like.
  • Each slide plate 5 comprises a groove 17 coinciding with the spiral groove 14 in the steel shell.
  • the welding station 8, the station 9, 10 comprising heating and smoothing means for the inner weld joint 11 and the station 12 comprising corresponding heating and smoothing means for the outer weld joint 13 are arranged spirally one after another along the periphery of the stationary first section 3.
  • the heating and smoothing means 9, 10; 12 are a hot-air blower accompanied by a sole of polytetrafluoroethylene or of another suitable material, which sole is arranged to rest against the heated weld joint 11 , 13 of the tube being made.
  • the heating means can also be low-effect lasers, IR heaters or catalytic burners.
  • the apparatus according to the invention has the further advantage that the stationary first section 3 and the frame 18 comprising the radial press rolls 6 form a replaceable part of the apparatus, thus making it easier to go over from one tube dimension to another.
  • a pre-set unit can be provided for each tube dimension that, once it has been mounted, only requires some minor fine adjustment of the press rolls.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

This invention concerns a method and an apparatus for making a spirally-wound tube from a hollow thermoplastic profile (1) having a substantially rectangular cross-section, which method comprises the steps of: winding the thermoplastic profile (1) around a drum (2) and joining adjacent loops together by welding, and smoothing the outer weld joint (13) by means of extra heat and a smoothing body resting against the weld joint (13). The invention is characterized in that the thermoplastic profile (1), when fed to the drum (2), comes onto a stationary first section (3) comprising spaced sliding means (5) arranged along the periphery, on which section welding is performed, after which an inner weld joint (11) thus formed is arranged to run along a spiral groove (14) running around the stationary first section (3), whereby the inner weld joint (11), as well as the outer weld joint (13), are treated by using extra heat and a stationary smoothing body (10) resting against it, and that the tube, once both of the welded surfaces (11, 13) have been smoothed, is transferred to a rotary driven drum section (4) causing the tube to rotate and generating the winding motion of the thermoplastic profile (1).

Description

Method of making a spirally-wound tube
This invention concerns a method of making a spirally-wound tube from a hollow thermoplastic profile having a substantially rectangular cross-section, which method comprises the steps of: winding the thermoplastic profile around a drum, joining adjacent loops together by welding, smoothing the outer weld joint by means of extra heat and a smoothing body resting against the weld joint, and feeding the tube axially forward by means of freely rotating, radial press rolls influencing the thermoplastic profile during the first winding around the drum.
The invention concerns also an apparatus for carrying out the method according to the preamble of Claim 4.
Until now, this method has been carried out by means of a drum rotating along its entire length around which the thermoplastic profile is wound and on which the welding is performed. The weld joint on the outer surface of the tube is smoothed when the tube lies against the drum. This is done by supplying extra heat and allowing a stationary smoothing body to lie against and slide along the heated weld joint thereafter, during the rotary motion of the tube. The weld joint inside the tube has been formed against the rotating drum. A similar method is known, for example, from Patent Specification FI95219.
In order to make sure that the material in the weld joint is hot/molten enough and that there is no risk of a so-called cold joint, the welding burr on both the outer and the inner surface of the tube has to be of optimum size. A customary welding drum makes it somewhat more difficult to control the size of the inner welding burr, and at the same time, there is a small risk that the surface of the inner weld joint is affected by the axial sliding of the tube along the drum as long as the plastic material is molten. The object of the present invention is to solve these problems, which has been achieved by means of a method that is characterized in that the thermoplastic profile, when fed to the drum, comes onto a stationary first section comprising spaced sliding means arranged along the periphery, on which section welding is performed, after which the inner weld joint thus formed is arranged to run along a spiral groove running around the stationary section, whereby the inner weld joint, as well as the outer weld joint, is smoothed by means of extra heat and a stationary body lying against the weld joint, and, once both of the welded surfaces have been smoothed, the tube is transferred to a rotary driven drum section causing the tube to rotate and generating the winding motion of the thermoplastic profile.
The characteristics of the apparatus according to the invention are set forth in the characterizing part of Claim 4.
The advantage of the method and apparatus according to the invention is, that the inner weld joint does not come into contact with the drum at all, until the joint surface has been smoothed and the plastic has hardened. The invention results in a very even outer and inner joint surface.
The other characteristics of the invention are set forth in the dependent claims.
In the following, the invention will be described in more detail with reference to the drawing wherein
Fig. 1 is a side view of an embodiment of the apparatus according to the invention, giving the basic details thereof,
Fig. 2 shows the apparatus shown in Fig. 1 seen from the right, and
Fig. 3 is a side view of another embodiment of the apparatus according to the invention. According to the invention, a spirally-wound tube is made by feeding an extruded, hollow thermoplastic profile 1 , having a substantially rectangular cross-section, to an apparatus comprising a cylindrical drum 2, having an outer diameter corresponding to a desired inner diameter of the tube to be made. The thermoplastic profile 1 is wound spirally around the drum 2, which, according to the invention, is divided into a stationary first section 3, where adjacent loops are welded together and where both of the surfaces of the formed weld joint are treated, and into a rotary driven, cylindrical second section 4, which is arranged to cause the tube made from the thermoplastic profile 1 to rotate and then simultaneously to pull the thermoplastic profile 1 around the stationary section 3 of the drum 2. During the welding, the plastic material is heated/melted in the welding zone by hot air, IR, halogen lamps or similar local heating, for example.
The stationary first section 3 comprises spaced sliding means 5 arranged along the periphery to facilitate the movement of the thermoplastic profile 1 over said section 3. By means of a number of freely rotating, radial press rolls 6, arranged along the periphery of the stationary section 3, at the incoming end of said section, an axial compression of adjacent loops of the thermoplastic profile 1 is achieved, and simultaneously the tube thus formed is pushed axially away from the drum. This pushing force is generated by continuously supplying the drum with new thermoplastic profile and thus forcing previously supplied loops away. When the thermoplastic profile 1 has been brought onto the stationary section 3 of the drum 2, it arrives to a welding station 8 where the thermoplastic profile 1 is joined to the nearest previous loop. The welding station 8 comprises either a welding keel producing an inner 11 and an outer 12 weld joint at the same time or two separate welding means. After the welding station 8, the thermoplastic profile 1 is transferred to a station provided with heating and smoothing means 9, 10 for the inner weld joint 11 inside the tube and to a station provided with similar heating and smoothing means 12 for the outer weld joint 13 on the tube. The thermoplastic profile 1 runs about three times around the drum 2 before it has left the stationary section 3 thereof completely. All the stations 8, 9, 10, 12 mentioned above are placed one after another along the periphery of the stationary first section 3.
In order to prevent the inner weld joint 11 from damaging during the sliding motion of the thermoplastic profile 1 along the stationary first section 3, while the plastic material of the weld joint is still in the plastic state, a groove 14 runs spirally around the stationary section 3, following the route along which the inner weld joint 11 moves during the rotation of the tube.
In the embodiment shown in Fig. 1 , the stationary first section 3 consists of a number of axially oriented and freely rotating sliding rolls 5 arranged along the periphery of the drum 2 and extending along the entire length of the stationary first section 3. In this case, the spiral groove 14 intended for the inner weld joint 11 of the tube to be made is an annular groove 14 made in the periphery of each sliding roll 5. The annular grooves 14 in the sliding rolls 5 are axially spaced with respect to each other in such a way that they form a spiral groove around the first section 3, having a pitch corresponding to the pitch of the inner weld joint 11 of the tube to be made.
In the embodiment shown in Fig. 3, the stationary first section 3 comprises a steel shell provided with openings 15 for the sliding means 5 of the section along the periphery of the section and an opening 16 for the heating and smoothing means 9, 10 intended for the inner weld joint 11 inside the tube being made. The sliding means 5 can be either axially oriented rolls having a peripheral annular groove 17 that coincides with the spiral groove 14 in the steel shell.
According to another embodiment, the sliding means 5 are sliding plates made of polytetrafluoroethylene or the like. Each slide plate 5 comprises a groove 17 coinciding with the spiral groove 14 in the steel shell.
The welding station 8, the station 9, 10 comprising heating and smoothing means for the inner weld joint 11 and the station 12 comprising corresponding heating and smoothing means for the outer weld joint 13 are arranged spirally one after another along the periphery of the stationary first section 3.
Preferably, the heating and smoothing means 9, 10; 12 are a hot-air blower accompanied by a sole of polytetrafluoroethylene or of another suitable material, which sole is arranged to rest against the heated weld joint 11 , 13 of the tube being made. The heating means can also be low-effect lasers, IR heaters or catalytic burners.
The apparatus according to the invention has the further advantage that the stationary first section 3 and the frame 18 comprising the radial press rolls 6 form a replaceable part of the apparatus, thus making it easier to go over from one tube dimension to another. Thus, a pre-set unit can be provided for each tube dimension that, once it has been mounted, only requires some minor fine adjustment of the press rolls. When an arrangement of this kind is used, the standing times for changing tube dimensions will be considerably reduced.

Claims

Claims:
1. A method of making a spirally-wound tube from a hollow thermoplastic profile (1 ) having a substantially rectangular cross-section, which method comprises the steps of: winding the thermoplastic profile (1 ) around a drum (2), joining adjacent loops together by welding, smoothing the outer weld joint (13) by means of extra heat and a smoothing body resting against the weld joint (13), and feeding the tube axially forward by means of freely rotating, radial press rolls (6) influencing the thermoplastic profile (1 ) during the first winding around the drum (2), characterized in that the thermoplastic profile (1 ), when fed to the drum (2), comes onto a stationary first section (3) comprising spaced sliding means (5) arranged along the periphery, on which section welding is performed, after which an inner weld joint (11 ) thus formed is arranged to run along a spiral groove (14) running around the stationary first section (3), whereby the inner weld joint (11 ), as well as the outer weld joint (13), are treated by using extra heat and a stationary smoothing body (10) resting against it, and that the tube, once both of the welded surfaces (11 , 13) have been smoothed, is transferred to a rotary driven drum section (4) causing the tube to rotate and generating the winding motion of the thermoplastic profile (1 ).
2. A method as defined in Claim 1 , characterized in that the welding is performed by means of a welding keel making simultaneous welding of both the outer (13) and the inner (11 ) weld joint possible.
3. A method as defined in Claim 1 , characterized in that the welding of the outer and the inner weld joint (13, 11 ) is carried out by separate welding means.
4. An apparatus for making a spirally wound tube from a hollow thermoplastic profile (1 ) having a substantially rectangular cross-section, comprising a cylindrical drum (2) around which the thermoplastic profile (1 ) is to be wound, radially oriented, freely rotating press rolls (6) arranged along the periphery of the drum (2), at the incoming end thereof; welding means (8) for joining adjacent loops of the thermoplastic profile (1 ) together, and heating and smoothing means (12) for a weld joint (13) formed on the outside of the tube, characterized in that the drum (2) is divided into a stationary first section (3) having sliding means (5) for the thermoplastic profile (5) distributed over the periphery, and heating and smoothing means (9, 10) for the weld joint (11 ) inside the tube, around which first section (3) a spiral groove (14) is made for a newly made inner weld joint (11 ) on the tube; and into a rotary driven cylindrical second section (4) for giving the tube and consequently the thermoplastic profile
(1 ) energy needed for its movement.
5. An apparatus as defined in Claim 4, characterized in that the stationary first section (3) comprises a number of axially oriented, freely rotating sliding rolls (5) with a length corresponding to the length of the first section
(3), and that the spiral groove (14) for an inner weld joint (11 ) is an annular groove (17) made in each sliding roll (5), which annular grooves (17) are mutually axially spaced forming a spiral.
6. An apparatus as defined in Claim 4, characterized in that the stationary first section (3) comprises a steel shell having openings (15) for the sliding means (5) of the section and for the heating and smoothing means (9, 10) for the weld joint (11 ) inside the tube, and that the spirally running groove (14) for a newly made inner weld joint (11 ) is made in the steel shell and in the sliding means (5) of the section.
7. An apparatus as defined in Claim 6, characterized in that the sliding means (5) is an axially oriented roll having a peripheral annular groove (17) that coincides with the spiral groove (14) in the steel shell.
8. An apparatus as defined in Claim 6, characterized in that the sliding means (5) is a slide plate made of polytetrafluoroethylene or the like into which a groove is made coinciding with the spiral groove (14) in the steel shell.
9. An apparatus as defined in Claim 4, characterized in that welding means (8), heating and smoothing means (9, 10; 12) for the inner (11 ) and the outer (13) weld joint are arranged spirally one after another along the periphery of the stationary first section (3).
10. An apparatus as defined in Claim 9, characterized in that the heating and smoothing means (9, 10; 12) are a hot-air blower accompanied by a sole of polytetrafluoroethylene which sole is arranged to rest against each heated weld joint (11 , 13).
11.An apparatus as defined in any one of Claims 4 to 10, characterized in that the stationary first section (3) and the frame (18) with the radial press rolls (6) form a replaceable unit of the apparatus.
PCT/FI2000/000936 1999-11-03 2000-10-27 Method of making a spirally-wound tube Ceased WO2001032401A1 (en)

Priority Applications (13)

Application Number Priority Date Filing Date Title
HK03101095.9A HK1050506A1 (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube
JP2001534584A JP4741771B2 (en) 1999-11-03 2000-10-27 Spiral tube manufacturing method
US10/129,388 US6939424B1 (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube
PL354516A PL194867B1 (en) 1999-11-03 2000-10-27 Method of making a spirally−wound tube
DK00972935T DK1237708T3 (en) 1999-11-03 2000-10-27 Process for producing a spiral-wound tube
APAP/P/2002/002528A AP1371A (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube.
AT00972935T ATE306381T1 (en) 1999-11-03 2000-10-27 METHOD FOR PRODUCING A SPIRALLY WOUND TUBE
EP00972935A EP1237708B1 (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube
BRPI0015472-5A BR0015472B1 (en) 1999-11-03 2000-10-27 process and apparatus for making spiral wound tubes.
AU11493/01A AU771065B2 (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube
MXPA02004076A MXPA02004076A (en) 1999-11-03 2000-10-27 Method of making a spirally wound tube.
DE60023179T DE60023179T2 (en) 1999-11-03 2000-10-27 METHOD FOR PRODUCING A SPIRAL WOUNT TUBE
CA002383124A CA2383124C (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI19992373 1999-11-03
FI992373A FI107522B (en) 1999-11-03 1999-11-03 Method and apparatus for producing spirally wound tubes

Publications (2)

Publication Number Publication Date
WO2001032401A1 true WO2001032401A1 (en) 2001-05-10
WO2001032401A8 WO2001032401A8 (en) 2001-07-19

Family

ID=8555552

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2000/000936 Ceased WO2001032401A1 (en) 1999-11-03 2000-10-27 Method of making a spirally-wound tube

Country Status (23)

Country Link
US (1) US6939424B1 (en)
EP (1) EP1237708B1 (en)
JP (1) JP4741771B2 (en)
CN (1) CN1166508C (en)
AP (1) AP1371A (en)
AT (1) ATE306381T1 (en)
AU (1) AU771065B2 (en)
BR (1) BR0015472B1 (en)
CA (1) CA2383124C (en)
DE (1) DE60023179T2 (en)
DK (1) DK1237708T3 (en)
EG (1) EG22552A (en)
ES (1) ES2248139T3 (en)
FI (1) FI107522B (en)
GC (1) GC0000144A (en)
HK (1) HK1050506A1 (en)
MX (1) MXPA02004076A (en)
MY (1) MY123507A (en)
OA (1) OA12084A (en)
PL (1) PL194867B1 (en)
RU (1) RU2229381C2 (en)
WO (1) WO2001032401A1 (en)
ZA (1) ZA200202854B (en)

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WO2003028980A1 (en) * 2001-10-03 2003-04-10 Oy Kwh Pipe Ab Method for manufacturing a container end wall of lightweight construction and a container provided with such an end wall
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* Cited by examiner, † Cited by third party
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FI115484B (en) * 2003-02-25 2005-05-13 Kwh Pipe Ab Oy The hollow profile used to make the tube
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US9505164B2 (en) 2009-12-30 2016-11-29 Schauenburg Technology Se Tapered helically reinforced hose and its manufacture
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FR2949791B1 (en) 2009-09-09 2011-11-18 Arkema France PROCESS FOR PRODUCING PRE-IMPREGNATED FIBROUS MATERIAL OF THERMOPLASTIC POLYMER
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917500A (en) * 1972-06-21 1975-11-04 Aristovoul Petzetakis Method for the production of hollow bodies, especially large-diameter ducts from thermoplastic synthetic resin
WO1993022126A1 (en) * 1992-04-30 1993-11-11 Oy Kwh Pipe Ab A welding method in the manufacture of a spirally wound tube and a welding head for performing the method
US5261988A (en) * 1989-09-22 1993-11-16 George A. Petzetakis Making large-diameter pipe
JPH08192472A (en) * 1995-01-19 1996-07-30 Shiro Kanao Inner / outer surface smooth synthetic resin pipe and method of manufacturing the same

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4033808A (en) * 1972-06-21 1977-07-05 Aristovoulos George Petzetakis Apparatus for the production of hollow bodies, especially large-diameter ducts from thermoplastic synthetic resin
JPS4958175A (en) * 1973-06-20 1974-06-05
NZ208302A (en) * 1983-06-08 1986-04-11 Toyo Kagaku Kk Manufacturing corrugated plastics tubes with smooth inner wall
DE3830627A1 (en) * 1988-03-16 1989-09-28 Wiik & Hoeglund METHOD FOR PRODUCING A WINDED THERMOPLASTIC TUBE
FI82133C (en) * 1988-08-17 1991-01-10 Kwh Pipe Ab Oy SPIRALLINDAT ROER.
JP2938899B2 (en) * 1989-10-04 1999-08-25 日本プラスチック工業株式会社 Method and apparatus for manufacturing synthetic resin tube
FI87318C (en) * 1991-06-14 1992-12-28 Kwh Pipe Ab Oy Method for splicing of spirally wound thermoplastic tubes
JPH054275A (en) * 1991-06-28 1993-01-14 Kawasaki Steel Corp Method and apparatus for manufacturing laminated spiral tube
JPH06294482A (en) * 1991-12-26 1994-10-21 Seiji Nagayoshi Pressure tube
US6105649A (en) * 1998-09-30 2000-08-22 Jerry C. Levingston Pipe extrusion apparatus including winding a hollow profile
FI107405B (en) * 1999-02-03 2001-07-31 Kwh Pipe Ab Oy Method for splicing spirally wound tubes
US6209607B1 (en) * 1999-02-23 2001-04-03 The Lamson & Sessions Co. Conduit-making apparatus with a multiple diameter winding drum

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3917500A (en) * 1972-06-21 1975-11-04 Aristovoul Petzetakis Method for the production of hollow bodies, especially large-diameter ducts from thermoplastic synthetic resin
US5261988A (en) * 1989-09-22 1993-11-16 George A. Petzetakis Making large-diameter pipe
WO1993022126A1 (en) * 1992-04-30 1993-11-11 Oy Kwh Pipe Ab A welding method in the manufacture of a spirally wound tube and a welding head for performing the method
JPH08192472A (en) * 1995-01-19 1996-07-30 Shiro Kanao Inner / outer surface smooth synthetic resin pipe and method of manufacturing the same

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Week 199640, Derwent World Patents Index; AN 1996-396698, XP002951422 *
PATENT ABSTRACTS OF JAPAN *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003028980A1 (en) * 2001-10-03 2003-04-10 Oy Kwh Pipe Ab Method for manufacturing a container end wall of lightweight construction and a container provided with such an end wall
RU2294834C2 (en) * 2001-10-03 2007-03-10 Ой Квх Пайп Аб Mode of manufacturing of the face wall of a light construction container and a container with such a wall
US7347910B2 (en) 2001-10-03 2008-03-25 Oy Kwh Pipe Ab Method for manufacturing a container end wall of lightweight construction and a container provided with such an end wall
JP2009500575A (en) * 2005-07-08 2009-01-08 オイ・ケイダブリュエイチ・パイプ・アブ Pipe joining method and apparatus

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