DE2821333C2 - Formkopf zur Herstellung eines Verbundrohres aus thermoplastischem Kunststoff - Google Patents

Formkopf zur Herstellung eines Verbundrohres aus thermoplastischem Kunststoff

Info

Publication number
DE2821333C2
DE2821333C2 DE2821333A DE2821333A DE2821333C2 DE 2821333 C2 DE2821333 C2 DE 2821333C2 DE 2821333 A DE2821333 A DE 2821333A DE 2821333 A DE2821333 A DE 2821333A DE 2821333 C2 DE2821333 C2 DE 2821333C2
Authority
DE
Germany
Prior art keywords
plastic
middle layer
outlet opening
layer
channel
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
DE2821333A
Other languages
German (de)
English (en)
Other versions
DE2821333A1 (de
Inventor
Norman John Vienna W.Va. Brozenick
Robert Lee Mineral Wells W.Va. Hornbeck
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.)
GE Chemicals Inc
Original Assignee
Borg Warner Chemicals Inc
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 Borg Warner Chemicals Inc filed Critical Borg Warner Chemicals Inc
Publication of DE2821333A1 publication Critical patent/DE2821333A1/de
Application granted granted Critical
Publication of DE2821333C2 publication Critical patent/DE2821333C2/de
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
    • B29C44/22—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
    • 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
    • B29C48/16—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
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/121—Rigid pipes of plastics with or without reinforcement with three layers
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • General Engineering & Computer Science (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
DE2821333A 1977-05-16 1978-05-16 Formkopf zur Herstellung eines Verbundrohres aus thermoplastischem Kunststoff Expired DE2821333C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US79692177A 1977-05-16 1977-05-16

Publications (2)

Publication Number Publication Date
DE2821333A1 DE2821333A1 (de) 1978-11-30
DE2821333C2 true DE2821333C2 (de) 1984-08-23

Family

ID=25169403

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2821333A Expired DE2821333C2 (de) 1977-05-16 1978-05-16 Formkopf zur Herstellung eines Verbundrohres aus thermoplastischem Kunststoff

Country Status (6)

Country Link
JP (1) JPS53141367A (enExample)
AU (1) AU520032B2 (enExample)
CA (1) CA1109619A (enExample)
DE (1) DE2821333C2 (enExample)
FR (1) FR2391058A1 (enExample)
GB (1) GB1595128A (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2455972A1 (fr) * 1979-05-10 1980-12-05 Sogecan Ste Gle Canalisations Procede et appareillage pour l'extrusion de tubes plastiques a parois composites
IT1126452B (it) * 1979-11-30 1986-05-21 Mario Calcagni Testa di estrusione per profilati per infissi e simili,nonche' profilato ottenuto
US4465449A (en) * 1982-12-06 1984-08-14 Borg-Warner Chemicals, Inc. Coextrusion feedblock for making lightweight, rigid thermoplastic pipe
US4507071A (en) * 1983-05-12 1985-03-26 Cosden Technology, Inc. Coextrusion apparatus for producing multiple layered thermoplastic pipe
US4499041A (en) * 1983-05-23 1985-02-12 Cosden Technology, Inc. Coextrusion process for producing multiple layered thermoplastic pipe
FR2564375B1 (fr) * 1984-05-18 1987-03-06 Eternit Financiere Procede de fabrication de tubes alleges, rigides en matiere thermoplastique
JPS6228222A (ja) * 1985-07-30 1987-02-06 Sumitomo Chem Co Ltd ポリプロピレン系樹脂発泡パイプの製造方法
KR950005495Y1 (ko) * 1992-10-01 1995-07-12 신용구 내충격 수도관
DE9409077U1 (de) * 1994-06-03 1994-08-11 Augst, Reiner, 02689 Wehrsdorf Schwimmfähiges, verwirbelbares Trägermaterial für biotechnologische Prozesse
GB9505789D0 (en) * 1995-03-22 1995-05-10 Glynwed Steel Tubes Ltd Plastics-coated tube
FI100130B (fi) * 1995-12-12 1997-09-30 Uponor Innovation Ab Monikerroksinen muoviputki
EP0868278B1 (en) 1995-12-12 2003-08-13 Uponor Innovation Ab Method for producing homogeneous material with an extruder, and extruder
IT237599Y1 (it) * 1996-07-29 2000-09-13 Poloplast Kunststoffwerk Tubo a piu' strati
NL1005371C2 (nl) * 1997-02-25 1998-08-26 Wavin Bv Meerlaags buis uit kunststof.
US6183673B1 (en) * 1998-04-24 2001-02-06 Industrial Thermo Ploymers Limited Method for forming extruded foam with surface coating
DE19920916A1 (de) 1999-05-06 2000-11-16 Basf Ag Verbundschichtplatte oder Folie für Kühlschränke
DE202009007494U1 (de) 2009-05-26 2009-09-17 Dow Global Technologies, Inc., Midland Mehrschichtige thermoplastische Blattmaterialien und daraus hergestellte thermogeformte Gegenstände
EP2499932B1 (de) * 2011-03-17 2016-05-11 EMS-Patent AG Hülsenkörper
EP2666803B1 (de) 2012-05-23 2018-09-05 Ems-Patent Ag Kratzfeste, transparente und zähe Copolyamidformmassen, hieraus hergestellte Formkörper und deren Verwendung
EP2746339B1 (de) 2012-12-18 2014-11-12 Ems-Patent Ag Polyamid-Formmasse und hieraus hergestellte Formkörper
EP2778190B1 (de) 2013-03-15 2015-07-15 Ems-Patent Ag Polyamidformmasse sowie hieraus hergestellter Formkörper
DE102013105749B4 (de) 2013-06-04 2015-09-03 W. Müller GmbH Extrusionsschlauchkopf für diskontinuierliches Schäumen

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL261319A (enExample) * 1960-02-24 1900-01-01
US3561493A (en) * 1965-04-21 1971-02-09 Paul Maillard Composite tubes and method of manufacturing same
DE6602679U (de) * 1966-05-18 1969-06-26 Ruetgerswerke Und Teerverwertung Ag Waermeisolierte rohre und rohrteile aus kunststoffen
AT325299B (de) * 1967-02-27 1975-10-10 Hegler Wilhelm Vorrichtung zur herstellung von rohren aus thermoplastischem kunststoff
GB1211860A (en) * 1967-10-03 1970-11-11 Ici Ltd A process for the production of pipe
US3855376A (en) * 1971-04-15 1974-12-17 Mitsubishi Rayon Co Process for making structural material having a foamed inner layer
DE2236375A1 (de) * 1972-07-25 1974-02-07 Technoform Caprano U Brunnhofe Kunststoffrohr

Also Published As

Publication number Publication date
AU520032B2 (en) 1982-01-14
AU3575278A (en) 1979-11-08
JPS53141367A (en) 1978-12-09
GB1595128A (en) 1981-08-05
JPS6130892B2 (enExample) 1986-07-16
FR2391058A1 (fr) 1978-12-15
DE2821333A1 (de) 1978-11-30
FR2391058B1 (enExample) 1981-07-24
CA1109619A (en) 1981-09-29

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Legal Events

Date Code Title Description
OD Request for examination
8127 New person/name/address of the applicant

Owner name: BORG-WARNER CHEMICALS, INC.(N.D.GES.DES STAATES DE

8128 New person/name/address of the agent

Representative=s name: HAUCK, H., DIPL.-ING. DIPL.-WIRTSCH.-ING., 8000 MU

D2 Grant after examination
8364 No opposition during term of opposition
8327 Change in the person/name/address of the patent owner

Owner name: GE CHEMICALS, INC., PARKERSBURG, W.VA., US

8328 Change in the person/name/address of the agent

Free format text: HAUCK, H., DIPL.-ING. DIPL.-WIRTSCH.-ING., 8000 MUENCHEN GRAALFS, E., DIPL.-ING., 2000 HAMBURG WEHNERT, W., DIPL.-ING., 8000 MUENCHEN DOERING, W., DIPL.-WIRTSCH.-ING. DR.-ING., 4000 DUESSELDORF SIEMONS, N., DIPL.-ING. DR.-ING., PAT.-ANWAELTE, 2000 HAMBURG

8339 Ceased/non-payment of the annual fee