DK624584D0 - Fremgangsmaade og apparat til fremstilling af et plastroer ved ekstrusion og styring af roerets vaegtykkelse - Google Patents

Fremgangsmaade og apparat til fremstilling af et plastroer ved ekstrusion og styring af roerets vaegtykkelse

Info

Publication number
DK624584D0
DK624584D0 DK624584A DK624584A DK624584D0 DK 624584 D0 DK624584 D0 DK 624584D0 DK 624584 A DK624584 A DK 624584A DK 624584 A DK624584 A DK 624584A DK 624584 D0 DK624584 D0 DK 624584D0
Authority
DK
Denmark
Prior art keywords
pipe
wall thickness
measuring
sector
average
Prior art date
Application number
DK624584A
Other languages
English (en)
Other versions
DK624584A (da
DK163035B (da
DK163035C (da
Inventor
K Boerger
H Overeijnder
Original Assignee
Wavin Bv
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19842931&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DK624584(D0) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wavin Bv filed Critical Wavin Bv
Publication of DK624584D0 publication Critical patent/DK624584D0/da
Publication of DK624584A publication Critical patent/DK624584A/da
Publication of DK163035B publication Critical patent/DK163035B/da
Application granted granted Critical
Publication of DK163035C publication Critical patent/DK163035C/da

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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • 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
    • B29C48/25—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
    • B29C2948/92009—Measured parameter
    • B29C2948/92314—Particular value claimed
    • 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
    • B29C2948/92704—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
    • B29C2948/92923—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
    • B29C2948/92819—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
    • B29C48/03—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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/06—PVC, i.e. polyvinylchloride

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Ultra Sonic Daignosis Equipment (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Television Signal Processing For Recording (AREA)
  • Formation And Processing Of Food Products (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Paper (AREA)
  • Electric Ovens (AREA)
DK624584A 1983-12-27 1984-12-21 Fremgangsmaade og apparat ekstrudering af et plastroer med kntrolleret vaegtykkelse samt apparatenhed tild regulering af roerets vaegtykkelse DK163035C (da)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL8304451 1983-12-27
NL8304451A NL8304451A (nl) 1983-12-27 1983-12-27 Werkwijze en inrichting voor het regelen van de wanddikte van geextrudeerde kunststofbuis.

Publications (4)

Publication Number Publication Date
DK624584D0 true DK624584D0 (da) 1984-12-21
DK624584A DK624584A (da) 1985-06-28
DK163035B DK163035B (da) 1992-01-13
DK163035C DK163035C (da) 1992-06-15

Family

ID=19842931

Family Applications (1)

Application Number Title Priority Date Filing Date
DK624584A DK163035C (da) 1983-12-27 1984-12-21 Fremgangsmaade og apparat ekstrudering af et plastroer med kntrolleret vaegtykkelse samt apparatenhed tild regulering af roerets vaegtykkelse

Country Status (10)

Country Link
US (3) US4749531A (da)
EP (1) EP0153511B2 (da)
JP (1) JPS60178019A (da)
AT (1) ATE35936T1 (da)
BR (1) BR8406747A (da)
CA (1) CA1250119A (da)
DE (1) DE3472919D1 (da)
DK (1) DK163035C (da)
FI (1) FI82413C (da)
NL (1) NL8304451A (da)

Families Citing this family (33)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8304451A (nl) * 1983-12-27 1985-07-16 Wavin Bv Werkwijze en inrichting voor het regelen van de wanddikte van geextrudeerde kunststofbuis.
US4882104A (en) * 1987-04-03 1989-11-21 Cincinnati Milacron, Inc. Method of controlling the thickness of an extruded plastic article
US4888148A (en) * 1988-08-15 1989-12-19 The B. F. Goodrich Company Method of making extruded amorphous thermoplastic pipe having reduced internal stress
US5026582A (en) * 1988-08-15 1991-06-25 The B. F. Goodrich Company Extruded amorphous thermoplastic pipe having reduced internal stress and method of making the same
AT401031B (de) * 1988-11-18 1996-05-28 Cincinnati Milacron Austria Einrichtung zum regeln der wandstärke
DE3906363C1 (da) * 1989-03-01 1990-11-08 Inoex Gmbh Innovationen Und Ausruestungen Fuer Die Extrusionstechnik, 4970 Bad Oeynhausen, De
SE500696C2 (sv) * 1989-03-10 1994-08-08 Uponor Nv Förfarande vid extrudering av plaströr
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
US5046615A (en) * 1989-04-03 1991-09-10 Fluoroware, Inc. Disk shipper
IT1230102B (it) * 1989-04-28 1991-10-05 Brabor Srl Macchina per la produzione di tubi estrusi in materiale sintetico e non, in particolare per tubi di piccolo diametro in polivinilcloruro.
DE3917657C2 (de) * 1989-05-31 1993-09-30 Sikora Industrieelektronik Vorrichtung zur Regelung des Außendurchmessers eines Stranges, insbesondere eines Kabels
DE3936496A1 (de) * 1989-11-02 1991-05-08 Krauss Maffei Ag Zentriervorrichtung fuer einen rohrextrusionskopf
US5388976A (en) * 1992-02-27 1995-02-14 Friedrich Theyson Gmbh Wall thickness measuring device with calibration device
US5292463A (en) * 1992-09-03 1994-03-08 General Electric Company Variable width film die
DE4234924C1 (de) * 1992-10-16 1994-06-01 Theysohn Friedrich Fa Regeleinrichtung für die mechanische oder thermische Einstellung der Düse eines Extruders für Langprodukte
US5622732A (en) * 1993-04-13 1997-04-22 Sencorp Systems Inc. Foam sheet extrusion die apparatus, and system with adjustable choke area
US5462423A (en) * 1993-04-13 1995-10-31 Sencorp Systems, Inc. Apparatus for non-mechanical die lip temperature adjustment in an extruder
NL9400453A (nl) * 1994-03-22 1995-11-01 Wavin Bv Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal.
NL9400738A (nl) * 1994-05-04 1995-12-01 Wavin Bv Werkwijze en inrichting voor het vervaardigen van biaxiaal georiënteerde buis uit thermoplastisch kunststofmateriaal.
CA2153366A1 (en) * 1995-01-31 1996-08-01 Pasta Acquisition Corp. Heating element for a pasta die and a method for extruding pasta
US5630982A (en) * 1995-12-12 1997-05-20 Sonoco Products Company Method and apparatus for extruding plastic tubing
JP3840569B2 (ja) * 1997-08-21 2006-11-01 ダイキン工業株式会社 ポリテトラフルオロエチレンチューブ及びそのための押出機
NL1012032C2 (nl) * 1999-03-05 2000-09-06 Wavin Bv Werkwijze voor het vervaardigen van een buis van biaxiaal georiënteerd thermoplastisch kunststofmateriaal.
NL1018450C2 (nl) * 2001-07-03 2003-01-08 Machf De Rollepaal B V Inrichting voor het extruderen van een thermoplastisch polymeer tot een buis, en een spuitkop daarvoor.
DE102004039316A1 (de) * 2004-08-13 2006-02-23 Inoex Gmbh Verfahren und Vorrichtung zur Herstellung von Kunstoffrohren in einer Extrusionslinie
CN103201083B (zh) * 2010-11-11 2014-11-19 东洋制罐株式会社 熔融树脂的弯曲矫正装置及熔融树脂的弯曲矫正方法
DE102011007618A1 (de) * 2011-04-18 2012-10-18 Greiner Tool.Tec Gmbh Extrusionsvorrichtung und Verfahren zur Beeinflussung von Wanddicken eines extrudierten Kunststoffprofils
WO2013151420A1 (en) * 2012-04-06 2013-10-10 Hoppmann International B.V. Method and installation for manufacturing biaxially oriented tubing
HUE037158T2 (hu) * 2014-04-25 2018-08-28 Rolan Invest Oue Összeállítás és eljárás mûanyag termék reciklált kevert mûanyaghulladékból történõ gyártására
US20180187802A1 (en) * 2016-12-30 2018-07-05 Polyflow Llc Multi-layer pipes
DE102017116955B3 (de) 2017-07-26 2018-11-15 Schlemmer Holding GmbH Verfahren und Vorrichtung zur Fertigungskontrolle eines extrudierten Kunststoffprodukts sowie Extrusionsanlage zum Extrudieren eines derartigen Kunststoffprodukts
CN108748949B (zh) * 2018-05-24 2020-05-19 福建晟扬管道科技有限公司 管体的生产装置及基于该装置的增强管体的生产方法
US11446854B2 (en) 2019-12-16 2022-09-20 Daniel R. Joseph Method and apparatus for calibration of blown-film extrusion apparatus

Family Cites Families (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE642865A (da) * 1963-01-23 1900-01-01
NL7014565A (da) * 1970-10-05 1972-04-07
DE2232930A1 (de) * 1971-07-06 1973-02-01 Hepworth Plastics Ltd Verfahren und vorrichtung zur herstellung von rohren unbedingt gleichmaessiger wandstaerke im strangpressverfahren
NL7209444A (en) * 1971-07-06 1973-01-09 Extruded pipes - with controlled thickness by separately adjusting temps in zones around extrusion die
NL7109900A (da) * 1971-07-16 1973-01-18
US3808879A (en) * 1972-08-03 1974-05-07 Amf Inc Ultrasonic wall thickness measurement
GB1448669A (en) * 1972-09-08 1976-09-08 Bakelite Xylonite Ltd Profile determining and/or controlling system
US4000402A (en) * 1974-06-10 1976-12-28 Measurex Corporation Scanning gauge control for sheet processing apparatus
US3955425A (en) * 1974-08-16 1976-05-11 Indev, Inc. Pipe wall thickness gauge
AT362922B (de) * 1975-02-26 1981-06-25 Cincinnati Milacron Austria Strangpresse
DE2612993C3 (de) * 1976-03-26 1979-07-12 Zumbach Electronic Ag, Orpund (Schweiz) Vorrichtung zur Prüfung der Wandstärke eines Rohres
DE2706085C2 (de) * 1977-02-12 1984-02-02 Reifenhäuser KG, 5210 Troisdorf Vorrichtung zum Extrudieren von Rohren aus thermoplastischem Kunststoff
US4137025A (en) * 1977-03-07 1979-01-30 Graves Kenneth E Apparatus for measuring and controlling the wall thickness of plastic pipes
US4209476A (en) * 1977-05-27 1980-06-24 Harrel, Incorporated Method and apparatus for fabrication of extruded articles
DE3002903C2 (de) * 1980-01-28 1986-12-04 Windmöller & Hölscher, 4540 Lengerich Verfahren zur Regelung der Foliendicke an einer Blasfolienextruderanlage
DE3006566A1 (de) * 1980-02-21 1981-08-27 Windmöller & Hölscher, 4540 Lengerich Verfahren zur regelung der foliendicke von in flachfolien-extrusionsanlagen hergestellten flachfolien
DE3107701A1 (de) * 1980-03-05 1982-01-14 Basf Ag, 6700 Ludwigshafen Verfahren und vorrichtung zur regelung der dicke von extrudierten flachfolien oder platten aus thermoplastischen kunststoffen
DE3014989C2 (de) * 1980-04-18 1991-01-24 Windmöller & Hölscher, 4540 Lengerich Verfahren zur Steuerung der Foliendicke an einer Blasfolienextruderanlage
US4475399A (en) * 1982-08-11 1984-10-09 Livingston Waylon A Apparatus for ultrasonic testing of tubular goods
US4425289A (en) * 1982-08-30 1984-01-10 The General Tire & Rubber Company Method of producing an extrudate having controlled shape and size
DE3304865A1 (de) * 1983-02-12 1984-08-16 Battenfeld Extrusionstechnik GmbH, 4970 Bad Oeynhausen Verfahren und vorrichtung zum konstanthalten der wandstaerke beim extrudieren von blasfolien, rohren oder rohrfoermigen straengen aus kunststoff
US4548570A (en) * 1983-05-12 1985-10-22 Cosden Technology, Inc. Extrusion apparatus for producing thermoplastic pipe
US4512943A (en) * 1983-05-20 1985-04-23 Cosden Technology, Inc. Extrusion process for producing thermoplastic pipe
NL8304451A (nl) * 1983-12-27 1985-07-16 Wavin Bv Werkwijze en inrichting voor het regelen van de wanddikte van geextrudeerde kunststofbuis.

Also Published As

Publication number Publication date
EP0153511A1 (en) 1985-09-04
CA1250119A (en) 1989-02-21
DK624584A (da) 1985-06-28
ATE35936T1 (de) 1988-08-15
US4886438A (en) 1989-12-12
EP0153511B2 (en) 1992-12-30
FI845092L (fi) 1985-06-28
DK163035B (da) 1992-01-13
NL8304451A (nl) 1985-07-16
US4749531A (en) 1988-06-07
DE3472919D1 (en) 1988-09-01
US4793788A (en) 1988-12-27
FI82413B (fi) 1990-11-30
FI845092A0 (fi) 1984-12-21
DK163035C (da) 1992-06-15
FI82413C (fi) 1991-03-11
BR8406747A (pt) 1985-10-22
JPH028569B2 (da) 1990-02-26
JPS60178019A (ja) 1985-09-12
EP0153511B1 (en) 1988-07-27

Similar Documents

Publication Publication Date Title
DK624584D0 (da) Fremgangsmaade og apparat til fremstilling af et plastroer ved ekstrusion og styring af roerets vaegtykkelse
CA1308530C (en) Procedure for manufacturing pipes and sections out of thermoplastic plastics
EP0089130B1 (en) System for controlling temperature of molten resin in cylinder of extruder
AR225850A1 (es) Nuevo tornillo extrusor para extruir polimeros
SE8102450L (sv) Sett att reglera folietjockleken hos i en blasfoliestrengsprutningsanleggning framstellda slangfolier
SU1132802A3 (ru) Способ регулировани толщины пленки
ATA310482A (de) Kupplungsvorrichtung zur loesbaren antriebsverbindung der maschinenseitigen antriebsvorrichtung mit der dreh- und axialbewegbaren schnecke der auswechselbaren plastifiziereinheit einer spritzgiessmaschine
FI906161A0 (fi) Laite suulakepuristimesta puristettavan muovisen johdon epäkeskeisyyden mittaamiseksi
US3270553A (en) Rheometer
SE8900845L (sv) Saett vid extrudering av plastroer
GB1372074A (en) Method and device for regulating the wall thickness of products manufactured from synthetic materials
GB1444757A (en) Process and apparatus for preparing polymeric film
DE59108521D1 (de) Verfahren und Vorrichtung zur Regelung der Temperatur der von einem Schweissextruder plastifizierten Kunststoffmasse
GB1134077A (en) Improvements in or relating to the manufacture of flexible reinforced plastics materil tubing
JPS5341362A (en) Method of extrusion molding tubular tetrafluoroethylene resin material
Shah et al. A study of the effect of the extrusion variables and screw design on the thermal and rheological characteristics of acetal and nylon 66
JPS58185237A (ja) 射出成形機等の温度パタ−ン検出方法
Prevors et al. Microwave radiothermometry in polymer processing technologies
JP2002355876A (ja) 押出し成形法
JPS62164522A (ja) 押出成形フイルムの製造方法
JPS55144130A (en) Control of pressure in hollow for hollow extruded product
JPS54135859A (en) Preparation of thermosetting resin sheet molding compound
Luukkala et al. Friction Measurement in PVC Extrusion
JPS58114925A (ja) プラスチツク成形機の樹脂温度制御方法
IT1072287B (it) Polimero tecnico per estrusione,stampaggio,e rivestimento particolarmente di manufatti destinati al settore termoidraulico

Legal Events

Date Code Title Description
PBP Patent lapsed

Country of ref document: DK