FR2469269A1 - Procede et dispositif de fabrication d'un tube calorifuge - Google Patents

Procede et dispositif de fabrication d'un tube calorifuge

Info

Publication number
FR2469269A1
FR2469269A1 FR8023056A FR8023056A FR2469269A1 FR 2469269 A1 FR2469269 A1 FR 2469269A1 FR 8023056 A FR8023056 A FR 8023056A FR 8023056 A FR8023056 A FR 8023056A FR 2469269 A1 FR2469269 A1 FR 2469269A1
Authority
FR
France
Prior art keywords
tube
plastic material
mass
metal
shirt
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Withdrawn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
FR8023056A
Other languages
English (en)
Inventor
Hans Sick
Karl-Heinz Knirsh
Hubert Magg
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 FR2469269A1 publication Critical patent/FR2469269A1/fr
Withdrawn legal-status Critical Current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
    • B29C44/32—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous

Abstract

LE TUBE CALORIFUGE A FABRIQUER SE COMPOSE D'UN TUBE CENTRAL METALLIQUE ET D'UNE CHEMISE OU GAINE EN MATIERE PLASTIQUE EXPANSEE QUI RECOUVRE LE TUBE SANS LUI ETRE SOUDEE, LA CHEMISE S'APPUYANT SUR LE TUBE CENTRAL PAR DES NERVURES QUI POINTENT VERS LE TUBE. ON CHAUFFE DANS UNE EXTRUDEUSE UNE MASSE DE MATIERE PLASTIQUE MOLLE, LA MASSE FONDUE DE MATIERE PLASTIQUE EST ADDITIONNEE D'UN GAZ PERMETTANT SON MOUSSAGE, ON INTRODUIT LA MASSE FONDUE DE MATIERE PLASTIQUE DANS L'OUTIL D'EXTRUSION MEME, ET ON PORTE LE TUBE METALLIQUE 2, AVANT SON ENTREE DANS L'OUTIL D'EXTRUSION 6, A UNE TEMPERATURE QUI EST ASSEZ ELEVEE POUR QU'UNE ADHERENCE SUFFISANTE SE PRODUISE ENTRE LE TUBE METALLIQUE ET LA MATIERE PLASTIQUE 10. LE TUBE PEUT ETRE EN CUIVRE, LA MATIERE PLASTIQUE PEUT ETRE DU POLYCHLORURE DE VINYLE, ET L'AGENT GONFLANT PEUT ETRE A BASE D'AZODICARBONAMIDE.
FR8023056A 1979-11-09 1980-10-28 Procede et dispositif de fabrication d'un tube calorifuge Withdrawn FR2469269A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2945275A DE2945275C2 (de) 1979-11-09 1979-11-09 Verfahren zum Ummanteln eines Metallrohres mit einer wärmeisolierenden Schaumstoffschicht

Publications (1)

Publication Number Publication Date
FR2469269A1 true FR2469269A1 (fr) 1981-05-22

Family

ID=6085572

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8023056A Withdrawn FR2469269A1 (fr) 1979-11-09 1980-10-28 Procede et dispositif de fabrication d'un tube calorifuge

Country Status (5)

Country Link
BE (1) BE885898A (fr)
DE (1) DE2945275C2 (fr)
FR (1) FR2469269A1 (fr)
GB (1) GB2063147A (fr)
IT (2) IT8068711A0 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2259270B (en) * 1991-09-07 1995-08-16 Extrudit Ltd Plastics piping
US7622680B2 (en) * 2003-09-10 2009-11-24 Tyco Electronics Corporation Cable jacket with internal splines
CN104896207A (zh) * 2015-05-26 2015-09-09 成都高普石油工程技术有限公司 一种结构稳定型石油管道

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH482536A (de) * 1967-09-29 1969-12-15 Benteler Werke Ag Verfahren und Einrichtung zum kontinuierlichen Aufbringen einer Ummantelung auf ein Metallrohr
BE805612A (fr) * 1973-10-03 1974-02-01 Sumitomo Chemical Co Procede de formation en continu d'une gaine de resine thermoplastique
US3896198A (en) * 1972-01-31 1975-07-22 Dainichi Nippon Cable Co Ltd Process for producing a foamed polyolefin insulated conductor
DE2533218A1 (de) * 1974-09-12 1976-04-01 Union Carbide Corp Verfahren zur herstellung von gegenstaenden mit schaumstruktur
FR2355646A1 (fr) * 1976-06-26 1978-01-20 Kabel Metallwerke Ghh Procede de fabrication d'une gaine en mousse synthetique
US4146562A (en) * 1976-06-22 1979-03-27 Sumitomo Chemical Company, Limited Extrusion coating method with polyolefin foam
DE2806560A1 (de) * 1978-02-16 1979-08-30 Kabel Metallwerke Ghh Verfahren zur kontinuierlichen herstellung waermeisolierter leitungsrohre

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT298911B (de) * 1967-11-16 1972-05-25 Sueddeutsche Kabelwerke Wärmeisolierung aus Kunststoffschaum für Metallrohre
US3972970A (en) * 1974-02-07 1976-08-03 Western Electric Company, Inc. Method for extruding cellular thermoplastic products
DE2420608A1 (de) * 1974-04-27 1975-11-20 Wieland Werke Ag Verfahren und vorrichtung zur herstellung eines mit einem geschaeumten kunststoffmantel versehenen metallrohres

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH482536A (de) * 1967-09-29 1969-12-15 Benteler Werke Ag Verfahren und Einrichtung zum kontinuierlichen Aufbringen einer Ummantelung auf ein Metallrohr
US3896198A (en) * 1972-01-31 1975-07-22 Dainichi Nippon Cable Co Ltd Process for producing a foamed polyolefin insulated conductor
BE805612A (fr) * 1973-10-03 1974-02-01 Sumitomo Chemical Co Procede de formation en continu d'une gaine de resine thermoplastique
DE2533218A1 (de) * 1974-09-12 1976-04-01 Union Carbide Corp Verfahren zur herstellung von gegenstaenden mit schaumstruktur
US4146562A (en) * 1976-06-22 1979-03-27 Sumitomo Chemical Company, Limited Extrusion coating method with polyolefin foam
FR2355646A1 (fr) * 1976-06-26 1978-01-20 Kabel Metallwerke Ghh Procede de fabrication d'une gaine en mousse synthetique
DE2806560A1 (de) * 1978-02-16 1979-08-30 Kabel Metallwerke Ghh Verfahren zur kontinuierlichen herstellung waermeisolierter leitungsrohre

Also Published As

Publication number Publication date
DE2945275A1 (de) 1981-05-21
BE885898A (nl) 1981-02-16
IT8068711A0 (it) 1980-11-07
DE2945275C2 (de) 1984-02-02
GB2063147A (en) 1981-06-03
IT8053646V0 (it) 1980-11-07

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Legal Events

Date Code Title Description
ST Notification of lapse