GB2146286A - Procedure for manufacturing a thermally insulating sheath or duct for a pipe or pipes - Google Patents

Procedure for manufacturing a thermally insulating sheath or duct for a pipe or pipes

Info

Publication number
GB2146286A
GB2146286A GB08425636A GB8425636A GB2146286A GB 2146286 A GB2146286 A GB 2146286A GB 08425636 A GB08425636 A GB 08425636A GB 8425636 A GB8425636 A GB 8425636A GB 2146286 A GB2146286 A GB 2146286A
Authority
GB
United Kingdom
Prior art keywords
procedure
surface layer
manufacturing
raw material
duct
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Withdrawn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
GB08425636A
Other versions
GB8425636D0 (en
Inventor
Johan Brenner
Helge Lindstrom
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.)
Fortum Oil Oy
Neste Oyj
Original Assignee
Fortum Oil Oy
Neste Oyj
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 Fortum Oil Oy, Neste Oyj filed Critical Fortum Oil Oy
Publication of GB8425636D0 publication Critical patent/GB8425636D0/en
Publication of GB2146286A publication Critical patent/GB2146286A/en
Withdrawn legal-status Critical Current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
    • B29C44/22—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 consisting of at least two parts of chemically or physically different materials, e.g. having different densities
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C44/00—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles
    • B29C44/20—Shaping by internal pressure generated in the material, e.g. swelling or foaming ; Producing porous or cellular expanded plastics articles for articles of indefinite length
    • B29C44/32—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements
    • B29C44/322—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables
    • B29C44/324—Incorporating or moulding on preformed parts, e.g. linings, inserts or reinforcements the preformed parts being elongated inserts, e.g. cables the preformed parts being tubular or folded to a tubular shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/908—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article characterised by calibrator surface, e.g. structure or holes for lubrication, cooling or venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Thermal Insulation (AREA)
  • Molding Of Porous Articles (AREA)
  • Laminated Bodies (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Resistance Heating (AREA)

Abstract

Procedure for manufacturing a tube of insulating material comprising one or several inner tubes (17), a foamed plastic insulation (18) and a plastic surface layer (16). In the procedure, foaming material is conducted to encircle the inner tube (17), and similarly plastic raw material to form the surface layer (16), and around the inner tube (17) are formed the foamed plastic insulation (18) and the surface layer (16) simultaneously in one work step. The surface layer (16) is cooled to desired dimension in a calibration means (14) in which a calibration pressure is produced by the foaming process, the release of this pressure being prevented by the plug which the foam forms as it solidifies. Control of the calibration pressure is effected by regulating the foam raw material supply and the temperature of the raw material.
GB08425636A 1983-02-14 1984-02-03 Procedure for manufacturing a thermally insulating sheath or duct for a pipe or pipes Withdrawn GB2146286A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI830487A FI830487L (en) 1983-02-14 1983-02-14 FOERFARANDE FOER TILLVERKNING AV EN VAERMEISOLERANDE MANTEL ELLER KANAL FOER ETT ELLER FLERA ROER.
PCT/FI1984/000013 WO1984003066A1 (en) 1983-02-14 1984-02-03 Procedure for manufacturing a thermally insulating sheath or duct for a pipe or pipes

Publications (2)

Publication Number Publication Date
GB8425636D0 GB8425636D0 (en) 1984-11-14
GB2146286A true GB2146286A (en) 1985-04-17

Family

ID=8516751

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08425636A Withdrawn GB2146286A (en) 1983-02-14 1984-02-03 Procedure for manufacturing a thermally insulating sheath or duct for a pipe or pipes

Country Status (10)

Country Link
BE (1) BE898894A (en)
DE (1) DE3490043T1 (en)
DK (1) DK482484D0 (en)
FI (1) FI830487L (en)
FR (1) FR2540782B1 (en)
GB (1) GB2146286A (en)
NL (1) NL8420024A (en)
NO (1) NO843995L (en)
SE (1) SE441732B (en)
WO (1) WO1984003066A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4204759C1 (en) * 1992-02-18 1992-12-03 Friedrich Theysohn Gmbh, 3012 Langenhagen, De
DE102007045900A1 (en) * 2007-09-26 2009-04-09 Rehau Ag + Co Composite body and method for its production
DE202009007391U1 (en) 2009-05-23 2009-08-13 Kraussmaffei Technologies Gmbh Device for applying a plastic material to the surface of a tubular body
AT509229B1 (en) * 2010-02-26 2011-07-15 Isoplus Fernwaermetechnik Ges M B H METHOD FOR PRODUCING A COMPOSITE TUBE
EA018820B1 (en) * 2010-06-28 2013-10-30 Общество С Ограниченной Ответственностью "Смит-Ярцево" Method for manufacturing a thermally insulated flexible tube
RU2494870C1 (en) * 2010-09-20 2013-10-10 Общество С Ограниченной Ответственностью "Смит-Ярцево" Line for production of heat-insulated flexible pipe
DE102015110401B4 (en) 2015-06-29 2019-08-01 Brugg Rohrsysteme Gmbh Method and device for coating a pipeline
CN109402545B (en) * 2017-08-18 2024-04-12 东莞中集专用车有限公司 Traction pin protection device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1211860A (en) * 1967-10-03 1970-11-11 Ici Ltd A process for the production of pipe
US3733382A (en) * 1969-04-10 1973-05-15 Shell Oil Co Method of centrifugally applying foam insulation to a pipe
SE401336B (en) * 1972-02-18 1978-05-02 K G Johnson PROCEDURE AND APPARATUS FOR THE PRODUCTION OF CELL PLASTIC PROFILES OF THERMOPLASTIC RESIN HARD MATERIAL
FI54878B (en) * 1973-01-25 1978-12-29 Rakennusmuovi Oy ANORDING FOR FOUNDATION FROM ISOLERROER
SE406734B (en) * 1974-03-09 1979-02-26 Sekisui Plastics PROCEDURE FOR THE MAKING OF FOAMED FORMALS OF THERMOPLASTIC WITH A HARD WEAR-RESISTANT SURFACE, WHICH IS SLIPPERY AND EVEN AND LIKES NATURAL WOOD, AND AN EXTENSION NOZZLE FOR THIS PROCEDURE
DE2758632A1 (en) * 1977-12-29 1979-07-05 Sekisui Plastics Foamed resin moulding prodn. - by extruding and foaming resin into a number of strands, melting the strands together and feeding into a confined take=up zone

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB938666A (en) * 1960-01-18 1963-10-02 Ici Australia Ltd Method and apparatus for forming shaped articles from foaming materials
FR1374382A (en) * 1963-06-21 1964-10-09 Plastival S A Process for manufacturing composite profiles, machine device for implementing the process and profiles obtained by implementing the process
US3327030A (en) * 1963-09-25 1967-06-20 Friedrich A Reifenhauser Method and apparatus for forming elongated members
FR1470412A (en) * 1966-01-13 1967-02-24 Fresse S A Method and device for the manufacture of bodies with a cellular structure of indefinite length in expanded thermoplastic material
FR2038718A5 (en) * 1969-03-27 1971-01-08 Plastival Sa Extruded section with expanded lightweight - core
SE389054B (en) * 1975-11-18 1976-10-25 Lundbergs Fab Ab N NOZZLE FOR SUPPLY OF TWO COMPONENTS IN THE MANUFACTURE OF A CELL PLACE BETWEEN A RUBBER AND AN SURROUNDING SHAPE

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1211860A (en) * 1967-10-03 1970-11-11 Ici Ltd A process for the production of pipe
US3733382A (en) * 1969-04-10 1973-05-15 Shell Oil Co Method of centrifugally applying foam insulation to a pipe
SE401336B (en) * 1972-02-18 1978-05-02 K G Johnson PROCEDURE AND APPARATUS FOR THE PRODUCTION OF CELL PLASTIC PROFILES OF THERMOPLASTIC RESIN HARD MATERIAL
FI54878B (en) * 1973-01-25 1978-12-29 Rakennusmuovi Oy ANORDING FOR FOUNDATION FROM ISOLERROER
SE406734B (en) * 1974-03-09 1979-02-26 Sekisui Plastics PROCEDURE FOR THE MAKING OF FOAMED FORMALS OF THERMOPLASTIC WITH A HARD WEAR-RESISTANT SURFACE, WHICH IS SLIPPERY AND EVEN AND LIKES NATURAL WOOD, AND AN EXTENSION NOZZLE FOR THIS PROCEDURE
DE2758632A1 (en) * 1977-12-29 1979-07-05 Sekisui Plastics Foamed resin moulding prodn. - by extruding and foaming resin into a number of strands, melting the strands together and feeding into a confined take=up zone

Also Published As

Publication number Publication date
FR2540782A1 (en) 1984-08-17
SE8405008D0 (en) 1984-10-08
FR2540782B1 (en) 1988-07-22
FI830487A0 (en) 1983-02-14
NO843995L (en) 1984-10-04
DK482484A (en) 1984-10-09
DK482484D0 (en) 1984-10-09
DE3490043T1 (en) 1985-02-07
SE8405008L (en) 1984-10-08
GB8425636D0 (en) 1984-11-14
FI830487L (en) 1984-08-15
SE441732B (en) 1985-11-04
NL8420024A (en) 1984-12-03
BE898894A (en) 1984-05-30
WO1984003066A1 (en) 1984-08-16

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)