IT1032667B - Procedimento e dispositivo per la fabbricazione di tubi metallici incamiciati con schiuma sintetica - Google Patents

Procedimento e dispositivo per la fabbricazione di tubi metallici incamiciati con schiuma sintetica

Info

Publication number
IT1032667B
IT1032667B IT67951/75A IT6795175A IT1032667B IT 1032667 B IT1032667 B IT 1032667B IT 67951/75 A IT67951/75 A IT 67951/75A IT 6795175 A IT6795175 A IT 6795175A IT 1032667 B IT1032667 B IT 1032667B
Authority
IT
Italy
Prior art keywords
procedure
manufacture
synthetic foam
metallic pipes
pipes enclosed
Prior art date
Application number
IT67951/75A
Other languages
English (en)
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
Application granted granted Critical
Publication of IT1032667B publication Critical patent/IT1032667B/it

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
IT67951/75A 1974-04-27 1975-04-15 Procedimento e dispositivo per la fabbricazione di tubi metallici incamiciati con schiuma sintetica IT1032667B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2420608A DE2420608A1 (de) 1974-04-27 1974-04-27 Verfahren und vorrichtung zur herstellung eines mit einem geschaeumten kunststoffmantel versehenen metallrohres

Publications (1)

Publication Number Publication Date
IT1032667B true IT1032667B (it) 1979-06-20

Family

ID=5914201

Family Applications (1)

Application Number Title Priority Date Filing Date
IT67951/75A IT1032667B (it) 1974-04-27 1975-04-15 Procedimento e dispositivo per la fabbricazione di tubi metallici incamiciati con schiuma sintetica

Country Status (6)

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

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2461013C3 (de) * 1974-12-21 1982-01-07 Wieland-Werke Ag, 7900 Ulm Aus einem Metallrohr und einem Kunststoffmantel bestehendes wärmeisoliertes Verbundrohr
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 (de) * 1979-11-09 1984-02-02 Wieland-Werke Ag, 7900 Ulm Verfahren zum Ummanteln eines Metallrohres mit einer wärmeisolierenden Schaumstoffschicht
GB2259270B (en) * 1991-09-07 1995-08-16 Extrudit Ltd Plastics piping
AT401753B (de) * 1995-05-24 1996-11-25 Ke Kelit Kunststoffwerk Gmbh Ringdüse zum strangpressen von kunststoffschläuchen zur rohrisolierung gegen wärme- und schallübertragung

Also Published As

Publication number Publication date
BE828067A (fr) 1975-08-18
FR2268622B1 (it) 1978-09-01
DE2420608A1 (de) 1975-11-20
FR2268622A1 (it) 1975-11-21
GB1501145A (en) 1978-02-15
CH584381A5 (it) 1977-01-31

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