GB2000570A - Multiple-layered plastics pipe and method and apparatus for its production - Google Patents

Multiple-layered plastics pipe and method and apparatus for its production

Info

Publication number
GB2000570A
GB2000570A GB7828443A GB7828443A GB2000570A GB 2000570 A GB2000570 A GB 2000570A GB 7828443 A GB7828443 A GB 7828443A GB 7828443 A GB7828443 A GB 7828443A GB 2000570 A GB2000570 A GB 2000570A
Authority
GB
United Kingdom
Prior art keywords
stream
annular
layered
thermoplastic
layer
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Withdrawn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
GB7828443A
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.)
Cosden Technology Inc
Original Assignee
Cosden Technology 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 Cosden Technology Inc filed Critical Cosden Technology Inc
Publication of GB2000570A publication Critical patent/GB2000570A/en
Withdrawn legal-status Critical Current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
    • 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)
  • Laminated Bodies (AREA)
  • Molding Of Porous Articles (AREA)

Abstract

A thermoplastic pipe, particularly one having an expanded core is produced by extruding a cylindrical stream of thermoplastic material, converting the cylindrical stream to an annular stream, applying at least one inner annular layer of thermoplastic to the inner surface of the annular stream, applying at least one outer annular layer of thermoplastic material to the annular stream, and extruding the resultant multiple-layered annular stream. The apparatus for producing the multiple-layered pipe includes a modular pipe die having inside and outside laydown means 51, 53, a flow equalizing groove within the die to obviate layer imperfections, and adjustable means 61 to control the concentricity of the outer layers. <IMAGE>
GB7828443A 1977-07-01 1978-06-30 Multiple-layered plastics pipe and method and apparatus for its production Withdrawn GB2000570A (en)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB2000570A true GB2000570A (en) 1979-01-10

Family

ID=25208307

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7828443A Withdrawn GB2000570A (en) 1977-07-01 1978-06-30 Multiple-layered plastics pipe and method and apparatus for its production

Country Status (5)

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

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032715B1 (en) * 1980-01-18 1984-04-11 Wavin B.V. Centering device for extrusion dies
EP0113071A1 (en) * 1982-12-06 1984-07-11 Borg-Warner Chemicals Inc. Coextrusion feedblock for making lightweight, rigid thermoplastic pipe
FR2684919A1 (en) * 1991-10-26 1993-06-18 Rehau Ag & Co Extruding three-ply plastic tubing, etc.
EP1362641A1 (en) * 2002-05-07 2003-11-19 Dürr Systems GmbH 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
WO2015055549A1 (en) * 2013-10-14 2015-04-23 Battenfeld-Cincinnati Austria Gmbh Device and method for cooling profiled plastic sections

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6422541A (en) * 1987-07-17 1989-01-25 Idemitsu Petrochemical Co Multi-layer material
JP2013043412A (en) * 2011-08-26 2013-03-04 Sekisui Chem Co Ltd Die for multi-layered tube

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0032715B1 (en) * 1980-01-18 1984-04-11 Wavin B.V. Centering device for extrusion dies
EP0113071A1 (en) * 1982-12-06 1984-07-11 Borg-Warner Chemicals Inc. Coextrusion feedblock for making lightweight, rigid thermoplastic pipe
FR2684919A1 (en) * 1991-10-26 1993-06-18 Rehau Ag & Co Extruding three-ply plastic tubing, etc.
BE1006907A5 (en) * 1991-10-26 1995-01-24 Rehau Ag & Co Process extrusion hollow.
EP1362641A1 (en) * 2002-05-07 2003-11-19 Dürr Systems GmbH 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
WO2015055549A1 (en) * 2013-10-14 2015-04-23 Battenfeld-Cincinnati Austria Gmbh Device and method for cooling profiled plastic sections
CN105722658A (en) * 2013-10-14 2016-06-29 班特菲德-辛辛那提奥地利有限公司 Device and method for cooling profiled plastic sections

Also Published As

Publication number Publication date
JPS5439481A (en) 1979-03-26
FR2396230B3 (en) 1981-02-06
IT7825135A0 (en) 1978-06-29
IT1158868B (en) 1987-02-25
BE868687A (en) 1978-11-03
FR2396230A1 (en) 1979-01-26

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)