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FR2221264A1 - Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die - Google Patents

Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die

Info

Publication number
FR2221264A1
FR2221264A1 FR7309426A FR7309426A FR2221264A1 FR 2221264 A1 FR2221264 A1 FR 2221264A1 FR 7309426 A FR7309426 A FR 7309426A FR 7309426 A FR7309426 A FR 7309426A FR 2221264 A1 FR2221264 A1 FR 2221264A1
Authority
FR
France
Prior art keywords
temps
extrusion die
separately adjusting
zones around
controlled thickness
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.)
Granted
Application number
FR7309426A
Other languages
French (fr)
Other versions
FR2221264B1 (en
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.)
Hepworth Plastics Ltd
Original Assignee
Hepworth Plastics Ltd
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
Priority to DE2232930A priority Critical patent/DE2232930A1/en
Application filed by Hepworth Plastics Ltd filed Critical Hepworth Plastics Ltd
Priority to FR7309426A priority patent/FR2221264A1/en
Publication of FR2221264A1 publication Critical patent/FR2221264A1/en
Application granted granted Critical
Publication of FR2221264B1 publication Critical patent/FR2221264B1/fr
Granted 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/87—Cooling
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/80—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the plasticising zone, e.g. by heating cylinders
    • B29C48/83—Heating or cooling the 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • 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
    • B29C48/78—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling
    • B29C48/86—Thermal treatment of the extrusion moulding material or of preformed parts or layers, e.g. by heating or cooling at the nozzle zone
    • B29C48/865—Heating
    • 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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92009—Measured parameter
    • B29C2948/92114—Dimensions
    • B29C2948/92152—Thickness
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92323—Location or phase of measurement
    • B29C2948/92428—Calibration, after-treatment, or cooling zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/9258—Velocity
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92704—Temperature
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92933—Conveying, transporting or storage of 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/03—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
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Extrusion Of Metal (AREA)

Abstract

Thickness of an extruded pipe is controlled by separately adjusting the temps. in each of a number of zones around the extrusion die for regulating the thickness around the pipe. Gives extruded pipes with a uniform thickness in bth the peripheral and lengthwise directions of the pipe.
FR7309426A 1971-07-06 1973-03-12 Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die Granted FR2221264A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE2232930A DE2232930A1 (en) 1971-07-06 1972-07-05 METHOD AND DEVICE FOR THE PRODUCTION OF PIPES OF EQUAL WALL THICKNESS IN THE EXTRUSION PROCESS
FR7309426A FR2221264A1 (en) 1971-07-06 1973-03-12 Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB3153071 1971-07-06
FR7309426A FR2221264A1 (en) 1971-07-06 1973-03-12 Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die

Publications (2)

Publication Number Publication Date
FR2221264A1 true FR2221264A1 (en) 1974-10-11
FR2221264B1 FR2221264B1 (en) 1976-04-23

Family

ID=26217621

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7309426A Granted FR2221264A1 (en) 1971-07-06 1973-03-12 Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die

Country Status (2)

Country Link
DE (1) DE2232930A1 (en)
FR (1) FR2221264A1 (en)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292570A1 (en) * 1974-11-27 1976-06-25 Teijin Ltd POLYMER FILM PRODUCTION PROCESS AND APPARATUS FOR IMPLEMENTING THIS PROCESS
FR2319480A1 (en) * 1975-07-28 1977-02-25 Standard Oil Co IMPROVEMENTS FOR PLASTIC EXTRUSION INDUSTRY HEADS
FR2424127A1 (en) * 1978-04-28 1979-11-23 Fabrications Et Heater power control of concentricity of extruded plastic sheathing - by adjusting flow rates on opposite sides of the die head
FR2470669A1 (en) * 1979-11-23 1981-06-12 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
FR2471269A2 (en) * 1979-12-12 1981-06-19 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
FR2474390A2 (en) * 1980-01-28 1981-07-31 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
EP0153511A1 (en) * 1983-12-27 1985-09-04 Wavin B.V. Method and apparatus for extruding a plastic pipe with controlled wall thickness
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
EP0390696A2 (en) * 1989-03-30 1990-10-03 Tomi Machinery Manfuacturing Co., Ltd. Apparatus for controlling thickness of film formed by melt extrusion
EP0423386A1 (en) * 1989-10-17 1991-04-24 Tomi Machinery Manfuacturing Co., Ltd. Synthetic resin film, method of uniforming the film thickness upon molding of such film and apparatus therefor
EP0425797A1 (en) * 1989-10-31 1991-05-08 WindmÀ¶ller & Hölscher Annular die for extrusion with application to a film extrusion blowing head
EP0860264A1 (en) * 1997-02-21 1998-08-26 The University of Wales, Swansea Improvements in or relating to the manufacture of plastics pipes
CN112406081A (en) * 2020-11-23 2021-02-26 广东众和化塑股份公司 Water-cooled film thickness control device

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0180571A3 (en) * 1984-09-11 1986-11-26 Erwin Hartl Extrusion die arrangement and automatic centering extrusion method
AT401031B (en) * 1988-11-18 1996-05-28 Cincinnati Milacron Austria DEVICE FOR REGULATING THE WALL THICKNESS
DE4002884C2 (en) * 1989-09-28 1998-08-13 Cincinnati Milacron Austria Device for extruding pipes with an extrusion press
ITMI20011902A1 (en) * 2001-09-12 2003-03-12 Electronic Systems Spa HEAD FOR THE EXTRUSION OF A TUBULAR FILM AND METHOD FOR ADJUSTING THE THICKNESS PROFILE OF AN EXTRUDED TUBULAR FILM
DE102008047206A1 (en) * 2008-09-15 2010-04-15 Cincinnati Extrusion Gmbh Device for producing plastic tube, has tool with nozzle and pin, where nozzle is divided into individual segments at its periphery
DE102011007618A1 (en) * 2011-04-18 2012-10-18 Greiner Tool.Tec Gmbh Extrusion device and method for influencing wall thicknesses of an extruded plastic profile
DE102011114576A1 (en) * 2011-09-30 2013-04-04 Thermo Electron (Karlsruhe) Gmbh extruder
CN114654696B (en) * 2022-04-13 2023-08-29 三杰节能新材料股份有限公司 A temperature control mechanism for the processing of large-scale polyethylene thermal insulation and external protection elbow pipes

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2292570A1 (en) * 1974-11-27 1976-06-25 Teijin Ltd POLYMER FILM PRODUCTION PROCESS AND APPARATUS FOR IMPLEMENTING THIS PROCESS
FR2319480A1 (en) * 1975-07-28 1977-02-25 Standard Oil Co IMPROVEMENTS FOR PLASTIC EXTRUSION INDUSTRY HEADS
FR2424127A1 (en) * 1978-04-28 1979-11-23 Fabrications Et Heater power control of concentricity of extruded plastic sheathing - by adjusting flow rates on opposite sides of the die head
FR2470669A1 (en) * 1979-11-23 1981-06-12 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
FR2471269A2 (en) * 1979-12-12 1981-06-19 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
FR2474390A2 (en) * 1980-01-28 1981-07-31 Windmoeller & Hoelscher METHOD FOR CONTROLLING THE SHEET THICKNESS IN A SOUTH-SHEET EXTRUSION INSTALLATION
EP0153511A1 (en) * 1983-12-27 1985-09-04 Wavin B.V. Method and apparatus for extruding a plastic pipe with controlled wall thickness
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
EP0390696A2 (en) * 1989-03-30 1990-10-03 Tomi Machinery Manfuacturing Co., Ltd. Apparatus for controlling thickness of film formed by melt extrusion
EP0390696A3 (en) * 1989-03-30 1991-04-17 Tomi Machinery Manfuacturing Co., Ltd. Apparatus for controlling thickness of film formed by melt extrusion
EP0423386A1 (en) * 1989-10-17 1991-04-24 Tomi Machinery Manfuacturing Co., Ltd. Synthetic resin film, method of uniforming the film thickness upon molding of such film and apparatus therefor
EP0425797A1 (en) * 1989-10-31 1991-05-08 WindmÀ¶ller & Hölscher Annular die for extrusion with application to a film extrusion blowing head
EP0860264A1 (en) * 1997-02-21 1998-08-26 The University of Wales, Swansea Improvements in or relating to the manufacture of plastics pipes
CN112406081A (en) * 2020-11-23 2021-02-26 广东众和化塑股份公司 Water-cooled film thickness control device

Also Published As

Publication number Publication date
DE2232930A1 (en) 1973-02-01
FR2221264B1 (en) 1976-04-23

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