DE2232930A1 - Verfahren und vorrichtung zur herstellung von rohren unbedingt gleichmaessiger wandstaerke im strangpressverfahren - Google Patents

Verfahren und vorrichtung zur herstellung von rohren unbedingt gleichmaessiger wandstaerke im strangpressverfahren

Info

Publication number
DE2232930A1
DE2232930A1 DE2232930A DE2232930A DE2232930A1 DE 2232930 A1 DE2232930 A1 DE 2232930A1 DE 2232930 A DE2232930 A DE 2232930A DE 2232930 A DE2232930 A DE 2232930A DE 2232930 A1 DE2232930 A1 DE 2232930A1
Authority
DE
Germany
Prior art keywords
ring
wall thickness
die
cooling tubes
heater
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.)
Pending
Application number
DE2232930A
Other languages
German (de)
English (en)
Inventor
John Cavey
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
Application filed by Hepworth Plastics Ltd filed Critical Hepworth Plastics Ltd
Publication of DE2232930A1 publication Critical patent/DE2232930A1/de
Pending 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)
DE2232930A 1971-07-06 1972-07-05 Verfahren und vorrichtung zur herstellung von rohren unbedingt gleichmaessiger wandstaerke im strangpressverfahren Pending DE2232930A1 (de)

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 (1)

Publication Number Publication Date
DE2232930A1 true DE2232930A1 (de) 1973-02-01

Family

ID=26217621

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2232930A Pending DE2232930A1 (de) 1971-07-06 1972-07-05 Verfahren und vorrichtung zur herstellung von rohren unbedingt gleichmaessiger wandstaerke im strangpressverfahren

Country Status (2)

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

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553069A1 (de) * 1974-11-27 1976-08-12 Teijin Ltd Verfahren und vorrichtung zur herstellung von folien oder filmen aus polymeren
EP0180571A3 (en) * 1984-09-11 1986-11-26 Erwin Hartl Extrusion die arrangement and automatic centering extrusion method
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
DE3937273A1 (de) * 1988-11-18 1990-05-31 Cincinnati Milacron Austria Verfahren zum herstellen von rohren und profilen aus thermoplastischen kunststoffmassen
DE4002884A1 (de) * 1989-09-28 1991-04-11 Cincinnati Milacron Austria Einrichtung zum extrudieren von rohren mit einer strangpresse
EP1293326A1 (en) * 2001-09-12 2003-03-19 Electronic Systems S.P.A. Temperature controlled extrusion die for the extrusion of tubular films
DE102008047206A1 (de) * 2008-09-15 2010-04-15 Cincinnati Extrusion Gmbh Vorrichtung und Verfahren zum Vergleichmäßigen der Wandstärke beim Extrudieren von Kunststoffprofilen
WO2012143373A1 (de) * 2011-04-18 2012-10-26 Greiner Tool.Tec Gmbh Extrusionsvorrichtung und verfahren zur beeinflussung von wanddicken eines extrudierten kunststoffprofils
EP2760659B1 (de) * 2011-09-30 2020-04-22 Thermo Electron (Karlsruhe) GmbH Extruder mit kühlvorrichtung
CN114654696A (zh) * 2022-04-13 2022-06-24 三杰节能新材料股份有限公司 一种大型聚乙烯保温外护弯管加工时的温控机构

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1068061A (en) * 1975-07-28 1979-12-18 Thomas J. Bond Plastics extrusion die head improvement
FR2424127A1 (fr) * 1978-04-28 1979-11-23 Fabrications Et Dispositif de fabrication, par extrusion, d'un fil metallique sous gaine thermoplastique
DE2947293C2 (de) * 1979-11-23 1983-09-15 Windmöller & Hölscher, 4540 Lengerich Verfahren zur Regelung der Foliendicke an einer Blasfolien-Extruderanlage
DE2950003C2 (de) * 1979-12-12 1983-08-11 Windmöller & Hölscher, 4540 Lengerich Verfahren zur Regelung der Foliendicke an einer Blasfolien-Extruderanlage
DE3002903C2 (de) * 1980-01-28 1986-12-04 Windmöller & Hölscher, 4540 Lengerich Verfahren zur Regelung der Foliendicke an einer Blasfolienextruderanlage
NL8304451A (nl) * 1983-12-27 1985-07-16 Wavin Bv Werkwijze en inrichting voor het regelen van de wanddikte van geextrudeerde kunststofbuis.
JPH0698671B2 (ja) * 1989-03-30 1994-12-07 トミー機械工業株式会社 溶融押出式フイルム成形の膜厚制御装置
EP0423386B1 (en) * 1989-10-17 1993-07-28 Tomi Machinery Manfuacturing Co., Ltd. Synthetic resin film, method of uniforming the film thickness upon molding of such film and apparatus therefor
DE3936239A1 (de) * 1989-10-31 1991-05-02 Windmoeller & Hoelscher Ringduese fuer strangpressen, vorzugsweise folienblaskopf
EP0860264A1 (en) * 1997-02-21 1998-08-26 The University of Wales, Swansea Improvements in or relating to the manufacture of plastics pipes
CN112406081B (zh) * 2020-11-23 2025-08-29 广东众和化塑股份公司 一种水冷式膜厚控制装置

Cited By (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2553069A1 (de) * 1974-11-27 1976-08-12 Teijin Ltd Verfahren und vorrichtung zur herstellung von folien oder filmen aus polymeren
EP0180571A3 (en) * 1984-09-11 1986-11-26 Erwin Hartl Extrusion die arrangement and automatic centering extrusion method
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
DE3937273A1 (de) * 1988-11-18 1990-05-31 Cincinnati Milacron Austria Verfahren zum herstellen von rohren und profilen aus thermoplastischen kunststoffmassen
NL8902778A (nl) * 1988-11-18 1990-06-18 Cincinnati Milacron Austria Werkwijze voor het vervaardigen van buizen en profielen uit thermoplastische kunststofmassa's.
DE4002884A1 (de) * 1989-09-28 1991-04-11 Cincinnati Milacron Austria Einrichtung zum extrudieren von rohren mit einer strangpresse
DE4002884C2 (de) * 1989-09-28 1998-08-13 Cincinnati Milacron Austria Einrichtung zum Extrudieren von Rohren mit einer Strangpresse
EP1293326A1 (en) * 2001-09-12 2003-03-19 Electronic Systems S.P.A. Temperature controlled extrusion die for the extrusion of tubular films
DE102008047206A1 (de) * 2008-09-15 2010-04-15 Cincinnati Extrusion Gmbh Vorrichtung und Verfahren zum Vergleichmäßigen der Wandstärke beim Extrudieren von Kunststoffprofilen
WO2012143373A1 (de) * 2011-04-18 2012-10-26 Greiner Tool.Tec Gmbh Extrusionsvorrichtung und verfahren zur beeinflussung von wanddicken eines extrudierten kunststoffprofils
CN103492154A (zh) * 2011-04-18 2014-01-01 格瑞纳模具技术股份有限公司 用于对挤出的塑料型材的壁厚度产生影响的挤出装置和方法
CN103492154B (zh) * 2011-04-18 2016-01-27 格瑞纳模具技术股份有限公司 用于对挤出的塑料型材的壁厚度产生影响的挤出装置和方法
EA026249B1 (ru) * 2011-04-18 2017-03-31 Грайнер Тул.Тек Гмбх Экструзионное устройство и способ воздействия на толщину стенок экструдированного пластикового профиля
US9636861B2 (en) 2011-04-18 2017-05-02 Greiner Tool.Tec Gmbh Extrusion device and method for influencing wall thicknesses of an extruded plastic profile
EP2699404B1 (de) 2011-04-18 2023-06-07 Greiner Extrusion Group GmbH Extrusionsvorrichtung und verfahren zur beeinflussung von wanddicken eines extrudierten kunststoffprofils
EP2760659B1 (de) * 2011-09-30 2020-04-22 Thermo Electron (Karlsruhe) GmbH Extruder mit kühlvorrichtung
CN114654696A (zh) * 2022-04-13 2022-06-24 三杰节能新材料股份有限公司 一种大型聚乙烯保温外护弯管加工时的温控机构
CN114654696B (zh) * 2022-04-13 2023-08-29 三杰节能新材料股份有限公司 一种大型聚乙烯保温外护弯管加工时的温控机构

Also Published As

Publication number Publication date
FR2221264B1 (enExample) 1976-04-23
FR2221264A1 (en) 1974-10-11

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