DE3714592C2 - - Google Patents

Info

Publication number
DE3714592C2
DE3714592C2 DE3714592A DE3714592A DE3714592C2 DE 3714592 C2 DE3714592 C2 DE 3714592C2 DE 3714592 A DE3714592 A DE 3714592A DE 3714592 A DE3714592 A DE 3714592A DE 3714592 C2 DE3714592 C2 DE 3714592C2
Authority
DE
Germany
Prior art keywords
layers
pipe
impurities
jacket
uniform
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
DE3714592A
Other languages
German (de)
English (en)
Other versions
DE3714592C3 (de
DE3714592A1 (de
Inventor
Erwin 3501 Fuldabrueck De Brunnhofer
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.)
Technoflow Fuel Systems GmbH
Original Assignee
Technoform Caprano and Brunnhofer GmbH and Co KG
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 Technoform Caprano and Brunnhofer GmbH and Co KG filed Critical Technoform Caprano and Brunnhofer GmbH and Co KG
Priority to DE3714592A priority Critical patent/DE3714592C3/de
Publication of DE3714592A1 publication Critical patent/DE3714592A1/de
Publication of DE3714592C2 publication Critical patent/DE3714592C2/de
Application granted granted Critical
Publication of DE3714592C3 publication Critical patent/DE3714592C3/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • F16L9/133—Rigid pipes of plastics with or without reinforcement the walls consisting of two 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
    • 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
    • B29C48/36—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE3714592A 1987-05-01 1987-05-01 Kraftfahrzeug-Sicherheitsrohr aus thermoplastischem Kunststoff Expired - Lifetime DE3714592C3 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE3714592A DE3714592C3 (de) 1987-05-01 1987-05-01 Kraftfahrzeug-Sicherheitsrohr aus thermoplastischem Kunststoff

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3714592A DE3714592C3 (de) 1987-05-01 1987-05-01 Kraftfahrzeug-Sicherheitsrohr aus thermoplastischem Kunststoff

Publications (3)

Publication Number Publication Date
DE3714592A1 DE3714592A1 (de) 1988-11-17
DE3714592C2 true DE3714592C2 (enrdf_load_stackoverflow) 1989-11-02
DE3714592C3 DE3714592C3 (de) 1997-04-24

Family

ID=6326660

Family Applications (1)

Application Number Title Priority Date Filing Date
DE3714592A Expired - Lifetime DE3714592C3 (de) 1987-05-01 1987-05-01 Kraftfahrzeug-Sicherheitsrohr aus thermoplastischem Kunststoff

Country Status (1)

Country Link
DE (1) DE3714592C3 (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3907106C2 (de) * 1989-03-04 1997-07-17 Friatec Keramik Kunststoff Rohrleitung

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3102350A1 (de) * 1981-01-24 1982-08-19 Dipl.-Ing. Dr. Ernst Vogelsang Gmbh & Co Kg, 4352 Herten Mehrlagiges rohr aus thermoplastischem kunststoff

Also Published As

Publication number Publication date
DE3714592C3 (de) 1997-04-24
DE3714592A1 (de) 1988-11-17

Similar Documents

Publication Publication Date Title
DE2537419C2 (de) Schmelzeverteiler in Rohr- oder Blasköpfen mit einer Pinole als Kern und diese umgebenden Gehäuse
DE2708200A1 (de) Kunststoffmaschine, insbesondere spritzgiessmaschine oder extruder
DE2537251A1 (de) Verfahren und formkern zur herstellung eines mehrseitig offenen flexiblen hohlformkoerpers
DE2555899C2 (de) Verfahren zur Herstellung von Hohlfasern aus anorganischen schmelzfähigen Materialien sowie Vorrichtung zur Durchführung des Verfahrens
EP1055504B1 (de) Extruderdüsenkopf
DE2333488A1 (de) Einstueckiger schlauch und einrichtung und verfahren zu seiner herstellung
DE2023146A1 (de) Leitung mit Mikro-Querschnitt fuer stroemende Medien und Verfahren zu deren Herstellung
DE3714592C2 (enrdf_load_stackoverflow)
DE3714593C2 (enrdf_load_stackoverflow)
DE2708593A1 (de) Zusammengesetztes rohr aus verschiedenen kunststoffen und verfahren zu dessen herstellung
DE2548670C2 (enrdf_load_stackoverflow)
DE3331832C1 (de) Vertikal arbeitender Folienblaskopf
DE2902007C2 (de) Kunststoff-Rohrleitung mit einer Einrichtung für die Tropfbewässerung
DE3102350A1 (de) Mehrlagiges rohr aus thermoplastischem kunststoff
DE3921631C2 (enrdf_load_stackoverflow)
DE2828832C3 (de) Strangpreßwerkzeug und Verfahren zu seiner Herstellung
DE2151506A1 (de) Schlauchverbindung
DE102004029588A1 (de) Verfahren zur Herstellung von Profilen aus Magnesiumwerkstoffen
DE2244294A1 (de) Verfahren und einrichtung zum kalibrieren des aussenmantels und zum kuehlen von stranggepressten hohlprofilstraengen aus thermoplastischen kunststoffen
EP0419983A1 (de) Extrudierkopf zum Herstellen mehrschichtiger Extrudate
DE3603056C2 (de) Rohraggregat aus einer Mehrzahl von Kunststoffrohren
DE3926998C2 (de) Verfahren und Rohrziehform zur Extrusion von Rohren aus thermoplastischem Material
AT208577B (de) Matrize zum Strangpressen von thermoplastischen Harzen od. dgl.
EP0768490A1 (de) Rohrverbindung
EP0406227B1 (de) Extrudiertes Kunststoffrohr

Legal Events

Date Code Title Description
OP8 Request for examination as to paragraph 44 patent law
D2 Grant after examination
8363 Opposition against the patent
8327 Change in the person/name/address of the patent owner

Owner name: TECHNOFLOW TUBE-SYSTEMS GMBH, 34277 FULDABRUECK, D

8366 Restricted maintained after opposition proceedings
8381 Inventor (new situation)

Free format text: BRUNNHOFER, ERWIN, 34277 FULDABRUECK, DE

8305 Restricted maintenance of patent after opposition
D4 Patent maintained restricted
8327 Change in the person/name/address of the patent owner

Owner name: TECHNOFLOW FUEL-SYSTEMS GMBH, 34277 FULDABRUECK, D