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GB1501145A - Process and equipment for the production of a metal tube coated with foamed plastics - Google Patents

Process and equipment for the production of a metal tube coated with foamed plastics

Info

Publication number
GB1501145A
GB1501145A GB15053/75A GB1505375A GB1501145A GB 1501145 A GB1501145 A GB 1501145A GB 15053/75 A GB15053/75 A GB 15053/75A GB 1505375 A GB1505375 A GB 1505375A GB 1501145 A GB1501145 A GB 1501145A
Authority
GB
United Kingdom
Prior art keywords
metal tube
production
equipment
foamed plastics
tube coated
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.)
Expired
Application number
GB15053/75A
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.)
Wieland Werke AG
Original Assignee
Wieland Werke AG
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 Wieland Werke AG filed Critical Wieland Werke AG
Publication of GB1501145A publication Critical patent/GB1501145A/en
Expired 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
    • 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
    • B29C48/03—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

1501145 Heat insulated metal tube WIELAND-WERKE AG 11 April 1975 [27 April 1974] 15053/75 Heading F2P [Also in Divisions B5 and C3] A metal tube 4 is coated by extrusion (see Divisions B4-B5) with a foam polyethylene heat insulating sheathing 5 having a non-porous outer surface and an interior surface preferably comprising ribs 14.
GB15053/75A 1974-04-27 1975-04-11 Process and equipment for the production of a metal tube coated with foamed plastics Expired GB1501145A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2420608A DE2420608A1 (en) 1974-04-27 1974-04-27 METHOD AND DEVICE FOR MANUFACTURING A METAL PIPE COVERED WITH A FOAMED PLASTIC COAT

Publications (1)

Publication Number Publication Date
GB1501145A true GB1501145A (en) 1978-02-15

Family

ID=5914201

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15053/75A Expired GB1501145A (en) 1974-04-27 1975-04-11 Process and equipment for the production of a metal tube coated with foamed plastics

Country Status (6)

Country Link
BE (1) BE828067A (en)
CH (1) CH584381A5 (en)
DE (1) DE2420608A1 (en)
FR (1) FR2268622B1 (en)
GB (1) GB1501145A (en)
IT (1) IT1032667B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259270A (en) * 1991-09-07 1993-03-10 Extrudit Ltd Extruding foam sleeve around tube bundle
EP0744268A1 (en) * 1995-05-24 1996-11-27 KE-KELIT Kunststoffwerk Gesellschaft m.b.H. Annular die for the extrusion of plastic sheathing for the insulation of piping against heat and sound transmission

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461013C3 (en) * 1974-12-21 1982-01-07 Wieland-Werke Ag, 7900 Ulm Thermally insulated composite pipe consisting of a metal pipe and a plastic jacket
GB1542585A (en) * 1976-06-22 1979-03-21 Sumitomo Chemical Co Method of extrusion coating with polyolefin foam
JPS5624289A (en) * 1979-07-31 1981-03-07 Furukawa Electric Co Ltd Adiabatic pipe and its manufacture
DE2945275C2 (en) * 1979-11-09 1984-02-02 Wieland-Werke Ag, 7900 Ulm Process for sheathing a metal pipe with a heat-insulating foam layer

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259270A (en) * 1991-09-07 1993-03-10 Extrudit Ltd Extruding foam sleeve around tube bundle
GB2259270B (en) * 1991-09-07 1995-08-16 Extrudit Ltd Plastics piping
EP0744268A1 (en) * 1995-05-24 1996-11-27 KE-KELIT Kunststoffwerk Gesellschaft m.b.H. Annular die for the extrusion of plastic sheathing for the insulation of piping against heat and sound transmission

Also Published As

Publication number Publication date
DE2420608A1 (en) 1975-11-20
BE828067A (en) 1975-08-18
FR2268622B1 (en) 1978-09-01
IT1032667B (en) 1979-06-20
CH584381A5 (en) 1977-01-31
FR2268622A1 (en) 1975-11-21

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee