IT8219856A0 - Procedimento e dispositivo per rivestire tubi d'acciaio con materiale sintetico termoplastico. - Google Patents

Procedimento e dispositivo per rivestire tubi d'acciaio con materiale sintetico termoplastico.

Info

Publication number
IT8219856A0
IT8219856A0 IT8219856A IT1985682A IT8219856A0 IT 8219856 A0 IT8219856 A0 IT 8219856A0 IT 8219856 A IT8219856 A IT 8219856A IT 1985682 A IT1985682 A IT 1985682A IT 8219856 A0 IT8219856 A0 IT 8219856A0
Authority
IT
Italy
Prior art keywords
procedure
synthetic material
thermoplastic synthetic
steel tubes
coating steel
Prior art date
Application number
IT8219856A
Other languages
English (en)
Inventor
Helmut Landgraf
Walter Stucke
Original Assignee
Mannesmann 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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of IT8219856A0 publication Critical patent/IT8219856A0/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
    • 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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/695—Flow dividers, e.g. breaker plates
    • B29C48/70—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows
    • B29C48/705—Flow dividers, e.g. breaker plates comprising means for dividing, distributing and recombining melt flows in the die zone, e.g. to create flow homogeneity
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • B29C48/338—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location using a die with concentric parts, e.g. rings, cylinders
    • 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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
    • B29K2023/04—Polymers of ethylene
    • B29K2023/06—PE, i.e. polyethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2009/00—Layered products
    • B29L2009/003—Layered products comprising a metal layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B29L2023/22—Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
IT8219856A 1981-05-27 1982-02-25 Procedimento e dispositivo per rivestire tubi d'acciaio con materiale sintetico termoplastico. IT8219856A0 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3121773A DE3121773C2 (de) 1981-05-27 1981-05-27 Extruderkopf zum Ummanteln eines Stahlrohres

Publications (1)

Publication Number Publication Date
IT8219856A0 true IT8219856A0 (it) 1982-02-25

Family

ID=6133690

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8219856A IT8219856A0 (it) 1981-05-27 1982-02-25 Procedimento e dispositivo per rivestire tubi d'acciaio con materiale sintetico termoplastico.

Country Status (14)

Country Link
US (1) US4519863A (it)
JP (1) JPS57195635A (it)
AT (1) AT384579B (it)
BE (1) BE893264A (it)
CA (1) CA1183668A (it)
CH (1) CH656345A5 (it)
CS (1) CS231193B2 (it)
DD (1) DD202202A5 (it)
DE (1) DE3121773C2 (it)
FR (1) FR2506663B1 (it)
GB (1) GB2102328B (it)
HU (1) HU183937B (it)
IT (1) IT8219856A0 (it)
NL (1) NL8200751A (it)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4578024A (en) * 1985-02-22 1986-03-25 The Firestone Tire & Rubber Company Coextrusion apparatus
EP0261343A3 (de) * 1986-08-23 1989-04-26 Blome GmbH & Co. Kommanditgesellschaft Verfahren zur Schaffung von Profilierungsvorsprüngen auf kunststoffummantelten Stahlteilen sowie mit Profilierungsvorsprüngen versehene, kunststoffummantelte Stahlteile
JP2569656B2 (ja) * 1987-12-17 1997-01-08 三菱電機株式会社 光学ディスク装置
US5178902A (en) * 1990-12-21 1993-01-12 Shaw Industries Ltd. High performance composite coating
CA2082437C (en) * 1991-11-14 1998-01-20 Peter C. Gates Spiral fed multi-layer tubular die
NL1006109C2 (nl) * 1997-05-22 1998-11-25 Hoogovens Staal Bv Werkwijze voor met thermoplastisch bekledingsmateriaal bekleden van een metallisch substraat.
FR2785967B1 (fr) * 1998-11-16 2000-12-08 Inst Francais Du Petrole Conduite isolee thermiquement et methode de farication
FR2785968B1 (fr) 1998-11-16 2001-01-12 Inst Francais Du Petrole Conduite isolee thermiquement par un materiau elastomere et methode de fabrication
JP2002228903A (ja) * 2001-01-30 2002-08-14 Olympus Optical Co Ltd 光学ユニット
GB0111347D0 (en) * 2001-05-10 2001-07-04 Mckechnie Components Ltd Pipes and manufacture of such pipes
US7824595B2 (en) * 2004-08-13 2010-11-02 Perma-Pipe, Inc. Method and system for cast molding a fluid conduit
ITGE20060031A1 (it) * 2006-03-08 2007-09-09 Socotherm S P A Metodo di rivestimento anticorrosione e termoisolante di corpi tubolari e di condotte di trasporto di fluidi ed apparato per l'attuazione di tale metodo.
US20080072988A1 (en) * 2006-08-22 2008-03-27 Perma-Pipe, Inc. Glass Syntactic Polyurethane Insulated Product
DE102015110401B4 (de) * 2015-06-29 2019-08-01 Brugg Rohrsysteme Gmbh Verfahren und Vorrichtung zur Beschichtung einer Rohrleitung
CN113172861B (zh) * 2021-05-12 2022-12-16 台州市卓信塑业有限公司 一种挤出机的合流器

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3075868A (en) * 1957-09-09 1963-01-29 Continental Can Co Method of bonding polymer plastics to substrate webs of dissimilar materials
GB892302A (en) * 1959-12-29 1962-03-28 Fawcett Preston & Co Ltd Improvements in an extrusion head for the simultaneous application of two layers of thermoplastic material to an inner core
US3184358A (en) * 1961-06-20 1965-05-18 Multifol Patentverwert Ag Method of forming laminated plastic tubing
AT243039B (de) * 1962-06-20 1965-10-25 Mannesmann Ag Verfahren zum Herstellen von Schutzüberzügen auf metallischen Werkstücken
DE1590419B2 (de) * 1962-07-19 1970-11-19 Schloemann AG, 4000 Düsseldorf Anordnung zur Verhinderung von Wärmeschäden an der wärmeempfindlichen Isolierung einer den Hohldorn einer Kabelummantelungspresse d"rchlaufenden Kabelseele
US3227786A (en) * 1962-10-25 1966-01-04 Anaconda Wire & Cable Co Method of jacketing telephone cables
BE632367A (it) * 1963-05-06 1900-01-01
GB1053173A (it) * 1964-01-24 1900-01-01
DE1957078C3 (de) * 1969-11-10 1979-09-20 Mannesmann Ag, 4000 Duesseldorf Extruderkopf
CA999501A (en) * 1972-08-21 1976-11-09 George L. Mathe Apparatus and method for producing filament tow filter rod having a foamed thermoplastic sheath
US3972970A (en) * 1974-02-07 1976-08-03 Western Electric Company, Inc. Method for extruding cellular thermoplastic products
DE7423544U (de) * 1974-07-11 1976-04-01 Softal Elektronik Erik Blumenfeld Kg, 2000 Hamburg In eine beschichtungsanlage einbaubare vorbehandlungsstation zur verbesserung der haftfaehigkeit, insbesondere bei der extruderbeschichtung von polyaethylen auf metall-, kunststoff- oder papierfolien
DE2519046C3 (de) * 1975-04-25 1979-08-23 Mannesmann Ag, 4000 Duesseldorf Verfahren zum Aufbringen einer Schicht aus Polyäthylen auf ein Stahlrohr
US4211595A (en) * 1978-10-10 1980-07-08 The Kendall Company Method of coating pipe
JPS55142651A (en) * 1979-04-23 1980-11-07 Toppan Printing Co Ltd Laminating material having improved seal layer and its preparation

Also Published As

Publication number Publication date
JPS57195635A (en) 1982-12-01
FR2506663A1 (fr) 1982-12-03
HU183937B (en) 1984-06-28
CA1183668A (en) 1985-03-12
CH656345A5 (de) 1986-06-30
DE3121773A1 (de) 1982-12-16
DE3121773C2 (de) 1984-06-07
FR2506663B1 (fr) 1986-05-09
US4519863A (en) 1985-05-28
ATA207182A (de) 1987-05-15
AT384579B (de) 1987-12-10
CS384082A2 (en) 1984-02-13
NL8200751A (nl) 1982-12-16
CS231193B2 (en) 1984-10-15
DD202202A5 (de) 1983-08-31
BE893264A (fr) 1982-09-16
GB2102328B (en) 1985-06-26
GB2102328A (en) 1983-02-02

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