IT1158868B - Procedimento ed apparecchiatura per produrre tubi termoplastici a strati multipli - Google Patents

Procedimento ed apparecchiatura per produrre tubi termoplastici a strati multipli

Info

Publication number
IT1158868B
IT1158868B IT25135/78A IT2513578A IT1158868B IT 1158868 B IT1158868 B IT 1158868B IT 25135/78 A IT25135/78 A IT 25135/78A IT 2513578 A IT2513578 A IT 2513578A IT 1158868 B IT1158868 B IT 1158868B
Authority
IT
Italy
Prior art keywords
procedure
equipment
multiple layer
layer thermoplastic
thermoplastic pipes
Prior art date
Application number
IT25135/78A
Other languages
English (en)
Other versions
IT7825135A0 (it
Original Assignee
Cosden Technology
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 Cosden Technology filed Critical Cosden Technology
Publication of IT7825135A0 publication Critical patent/IT7825135A0/it
Application granted granted Critical
Publication of IT1158868B publication Critical patent/IT1158868B/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
    • B29C48/30—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
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • B29C48/3363—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die using a layered die, e.g. stacked discs
    • 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
    • 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
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • B29C48/327—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections with centering means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
  • Laminated Bodies (AREA)
IT25135/78A 1977-07-01 1978-06-29 Procedimento ed apparecchiatura per produrre tubi termoplastici a strati multipli IT1158868B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81204177A 1977-07-01 1977-07-01

Publications (2)

Publication Number Publication Date
IT7825135A0 IT7825135A0 (it) 1978-06-29
IT1158868B true IT1158868B (it) 1987-02-25

Family

ID=25208307

Family Applications (1)

Application Number Title Priority Date Filing Date
IT25135/78A IT1158868B (it) 1977-07-01 1978-06-29 Procedimento ed apparecchiatura per produrre tubi termoplastici a strati multipli

Country Status (5)

Country Link
JP (1) JPS5439481A (it)
BE (1) BE868687A (it)
FR (1) FR2396230A1 (it)
GB (1) GB2000570A (it)
IT (1) IT1158868B (it)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3001705C2 (de) * 1980-01-18 1984-10-18 Wavin B.V., Zwolle Zentriervorrichtung für Formwerkzeuge von Strangpressen
US4465449A (en) * 1982-12-06 1984-08-14 Borg-Warner Chemicals, Inc. Coextrusion feedblock for making lightweight, rigid thermoplastic pipe
JPS6422541A (en) * 1987-07-17 1989-01-25 Idemitsu Petrochemical Co Multi-layer material
DE4135336C2 (de) * 1991-10-26 1993-10-21 Rehau Ag & Co Verfahren zum Strangpressen von Mehrschichtrohren
WO2003095308A1 (en) * 2002-05-07 2003-11-20 Behr Systems, Inc. Method and apparatus for delivering paint to an applicator and flushing same
US7584771B2 (en) 2002-05-07 2009-09-08 Durr Systems, Inc. Method and apparatus for delivering paint to an applicator and flushing same
JP2013043412A (ja) * 2011-08-26 2013-03-04 Sekisui Chem Co Ltd 多層管用金型
DE102013220746A1 (de) * 2013-10-14 2015-04-16 Battenfeld-Cincinnati Austria Gmbh Vorrichtung und Verfahren zum Kühlen von Kunststoffprofilen
CN119175864B (zh) * 2024-09-02 2025-10-24 爱康企业集团(浙江)有限公司 一种用于挤出带氧气阻隔层的三层结构塑料管材的机模

Also Published As

Publication number Publication date
FR2396230A1 (fr) 1979-01-26
JPS5439481A (en) 1979-03-26
GB2000570A (en) 1979-01-10
FR2396230B3 (it) 1981-02-06
BE868687A (fr) 1978-11-03
IT7825135A0 (it) 1978-06-29

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