IT1077445B - Estrusore con coclea di estrusione a due spirali - Google Patents

Estrusore con coclea di estrusione a due spirali

Info

Publication number
IT1077445B
IT1077445B IT26273/77A IT2627377A IT1077445B IT 1077445 B IT1077445 B IT 1077445B IT 26273/77 A IT26273/77 A IT 26273/77A IT 2627377 A IT2627377 A IT 2627377A IT 1077445 B IT1077445 B IT 1077445B
Authority
IT
Italy
Prior art keywords
extruder
extrusion screw
spiral extrusion
spiral
screw
Prior art date
Application number
IT26273/77A
Other languages
English (en)
Original Assignee
Borg Warner
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 filed Critical Borg Warner
Application granted granted Critical
Publication of IT1077445B publication Critical patent/IT1077445B/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
    • B29C48/03—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
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/288—Feeding the extrusion material to the extruder in solid form, e.g. powder or granules
    • 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
    • B29C48/304—Extrusion nozzles or dies specially adapted for bringing together components, e.g. melts within the die
    • 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
    • B29C48/336—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
    • B29C48/3366—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 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
    • B29C48/335—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
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • 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
    • 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
    • B29C48/285—Feeding the extrusion material to the extruder
    • B29C48/286—Raw material dosing

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Molding Of Porous Articles (AREA)
IT26273/77A 1976-08-16 1977-07-28 Estrusore con coclea di estrusione a due spirali IT1077445B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/714,549 US4054403A (en) 1976-08-16 1976-08-16 Extruder with dual flighted extrusion screw

Publications (1)

Publication Number Publication Date
IT1077445B true IT1077445B (it) 1985-05-04

Family

ID=24870471

Family Applications (1)

Application Number Title Priority Date Filing Date
IT26273/77A IT1077445B (it) 1976-08-16 1977-07-28 Estrusore con coclea di estrusione a due spirali

Country Status (8)

Country Link
US (1) US4054403A (it)
JP (1) JPS5323353A (it)
AU (1) AU509499B2 (it)
CA (1) CA1095210A (it)
DE (1) DE2734857C3 (it)
FR (1) FR2361998A1 (it)
GB (1) GB1573362A (it)
IT (1) IT1077445B (it)

Families Citing this family (25)

* 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
US4252755A (en) * 1979-05-21 1981-02-24 Normanton James K Co-extrusion method and apparatus
DE3001159C2 (de) * 1980-01-15 1987-03-05 kabelmetal electro GmbH, 3000 Hannover Verfahren zum Herstellen schrumpffähiger Formteile
US4386628A (en) * 1980-11-20 1983-06-07 Pro-Tech Advisory Services Limited Maintenance lining of passageways
US4518557A (en) * 1981-05-18 1985-05-21 James River-Norwalk, Inc. Process for skin foam
IT1189339B (it) * 1982-08-18 1988-02-04 Edoardo Costarelli Essiccatore a coclea,in particolar modo per materiali plastici
US4547114A (en) * 1982-09-29 1985-10-15 The Procter & Gamble Company Positive control stacker
US4509907A (en) * 1983-05-13 1985-04-09 American Maplan Corporation Extrusion head for tubular bodies and hollow profiles
US4499041A (en) * 1983-05-23 1985-02-12 Cosden Technology, Inc. Coextrusion process for producing multiple layered thermoplastic pipe
US4514163A (en) * 1983-11-28 1985-04-30 Kensaku Nakamura Synthetic resin extruding means
JPH0541865Y2 (it) * 1986-06-30 1993-10-22
US4964730A (en) * 1986-08-19 1990-10-23 Alzner Bernard G Plasticating extruder screw
WO1988001227A1 (en) * 1986-08-19 1988-02-25 Alzner Bernard G Plasticising extruder screw
US4846648A (en) * 1986-11-19 1989-07-11 American Maplan Corporation Triple-wall foam coextrusion apparatus
US4773448A (en) * 1987-02-26 1988-09-27 Francis Norman L Freeze-resistant plastic pipe and method for its manufacture
US5126088A (en) * 1991-07-05 1992-06-30 Thermal Industries, Inc. Method for producing an extrusion having a wood grain appearance and an associated apparatus
WO2003033235A1 (en) * 2001-10-18 2003-04-24 Community Enterprises, Llc Apparatus for injection molding multilayered articles
US7132167B2 (en) * 2002-09-27 2006-11-07 Rexnord Corporation Composite article having thermoplastic elastomer region on thermoplastic substrate
NL1027629C2 (nl) * 2004-11-30 2006-05-31 Rollepaal B V Extruder en werkwijze voor het produceren van een uit meerdere lagen bestaand product.
US20120305083A1 (en) * 2011-06-04 2012-12-06 Wlp Holding Corporation Co-extruded oxidation-resistant polyethylene pipe and method of manufacture
CN107571477A (zh) * 2016-07-05 2018-01-12 东莞爱屋氏日用品有限公司 一种双圈产品挤出装置
CN106003658B (zh) * 2016-07-11 2018-07-03 盐城工学院 一种短螺杆双料挤出机
CN106042324B (zh) * 2016-07-11 2019-02-26 盐城工学院 一种对置螺旋短螺杆挤出机
EP3656523B1 (de) * 2018-11-22 2021-09-29 Buss AG Misch- und knetmaschine mit wirksamer entlüftung im bereich der zuführung, und darauf bezogenes verfahren
CN113263748B (zh) * 2021-07-19 2021-09-28 南通纳科达聚氨酯科技有限公司 一种tpu复合膜涂胶上色贴合设备

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE372214C (de) * 1923-03-23 Hermann Berstorff Maschb Ansta Strangpresse fuer Gummi und aehnliche Massen
CH343839A (de) * 1955-04-05 1959-12-31 Conte Soc Presse zur Erzeugung von Bleistiften aus teigförmigen Werkstoffen
CH363149A (fr) * 1959-12-31 1962-07-15 Maillefer Sa Boudineuse à vis
DE1146648B (de) * 1961-02-17 1963-04-04 Frieseke & Hoepfner Gmbh Verfahren zur Herstellung mehrfarbiger Kunststoffhalbzeuge auf Schneckenstrangpressen
NL298633A (it) * 1962-10-11 1900-01-01
DE1254859B (de) * 1964-12-18 1967-11-23 Rheinstahl Henschel Ag Vorrichtung zum Extrudieren von thermoplastischen Kunststoffen
US3649143A (en) * 1969-05-01 1972-03-14 Pierson Ind Inc Composite tubular film apparatus
JPS5024338A (it) * 1973-06-25 1975-03-15

Also Published As

Publication number Publication date
JPS5323353A (en) 1978-03-03
DE2734857C3 (de) 1982-05-06
AU2681977A (en) 1979-01-11
DE2734857A1 (de) 1978-02-23
US4054403A (en) 1977-10-18
FR2361998B1 (it) 1980-06-20
GB1573362A (en) 1980-08-20
CA1095210A (en) 1981-02-10
AU509499B2 (en) 1980-05-15
FR2361998A1 (fr) 1978-03-17
DE2734857B2 (de) 1981-04-09

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