FR2545034B1 - Procede et dispositif d'extrusion pour la fabrication de profiles a partir d'un ou plusieurs melanges differents de caoutchouc ou de matieres plastiques - Google Patents

Procede et dispositif d'extrusion pour la fabrication de profiles a partir d'un ou plusieurs melanges differents de caoutchouc ou de matieres plastiques

Info

Publication number
FR2545034B1
FR2545034B1 FR8312654A FR8312654A FR2545034B1 FR 2545034 B1 FR2545034 B1 FR 2545034B1 FR 8312654 A FR8312654 A FR 8312654A FR 8312654 A FR8312654 A FR 8312654A FR 2545034 B1 FR2545034 B1 FR 2545034B1
Authority
FR
France
Prior art keywords
profiles
plastics
rubber
manufacture
extrusion process
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.)
Expired
Application number
FR8312654A
Other languages
English (en)
Other versions
FR2545034A1 (fr
Inventor
Dietmar Anders
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.)
KraussMaffei Extrusion GmbH
Original Assignee
Hermann Berstorff Maschinenbau GmbH
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 Hermann Berstorff Maschinenbau GmbH filed Critical Hermann Berstorff Maschinenbau GmbH
Publication of FR2545034A1 publication Critical patent/FR2545034A1/fr
Application granted granted Critical
Publication of FR2545034B1 publication Critical patent/FR2545034B1/fr
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/36Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/49Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using two or more extruders to feed one die or nozzle
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/12Articles with an irregular circumference when viewed in cross-section, e.g. window profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/19Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their edges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/16Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25Component parts, details or accessories; Auxiliary operations
    • B29C48/92Measuring, controlling or regulating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92009Measured parameter
    • B29C2948/92019Pressure
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92009Measured parameter
    • B29C2948/9218Weight
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92323Location or phase of measurement
    • B29C2948/92361Extrusion unit
    • B29C2948/92409Die; Nozzle zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92323Location or phase of measurement
    • B29C2948/92438Conveying, transporting or storage of articles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/9258Velocity
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92504Controlled parameter
    • B29C2948/92609Dimensions
    • B29C2948/92647Thickness
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92876Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92885Screw or gear
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C2948/00Indexing scheme relating to extrusion moulding
    • B29C2948/92Measuring, controlling or regulating
    • B29C2948/92819Location or phase of control
    • B29C2948/92857Extrusion unit
    • B29C2948/92904Die; Nozzle zone
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03Extrusion 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
    • B29C48/07Flat, e.g. panels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00Pneumatic or solid tyres or parts thereof
    • B29L2030/002Treads

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR8312654A 1983-04-27 1983-08-01 Procede et dispositif d'extrusion pour la fabrication de profiles a partir d'un ou plusieurs melanges differents de caoutchouc ou de matieres plastiques Expired FR2545034B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3315184A DE3315184C1 (de) 1983-04-27 1983-04-27 Verfahren und Strangpresseinrichtung zum UEberwachen der Herstellung von Profilen aus einer oder mehreren Kautschuk- oder Kunststoffmischungen

Publications (2)

Publication Number Publication Date
FR2545034A1 FR2545034A1 (fr) 1984-11-02
FR2545034B1 true FR2545034B1 (fr) 1988-04-22

Family

ID=6197448

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8312654A Expired FR2545034B1 (fr) 1983-04-27 1983-08-01 Procede et dispositif d'extrusion pour la fabrication de profiles a partir d'un ou plusieurs melanges differents de caoutchouc ou de matieres plastiques

Country Status (8)

Country Link
US (1) US4515738A (fr)
JP (1) JPS59199230A (fr)
BR (1) BR8304039A (fr)
DE (1) DE3315184C1 (fr)
FR (1) FR2545034B1 (fr)
GB (1) GB2141844B (fr)
IT (1) IT1164304B (fr)
SU (1) SU1175359A3 (fr)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3434904C1 (de) * 1984-09-22 1985-10-17 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Verfahren und Anlage zum UEberwachen der Abmessungen eines aus einer oder mehreren Mischungen bestehenden,kontinuierlich extrudierten Profilbandes aus Kautschuk oder thermoplastischem Kunststoff
GB2166568B (en) * 1984-09-22 1987-12-31 Berstorff Gmbh Masch Hermann A method and apparatus for monitoring deviations in the dimensions of a continuously extruded profile strip
DE3530383A1 (de) * 1985-08-24 1987-03-05 Reifenhaeuser Masch Formgebendes werkzeugaggregat fuer eine strangpressvorrichtung fuer thermoplastifizierten kunststoff
DE3534770C1 (de) * 1985-09-30 1986-11-13 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Verfahren und Anordnung zum materialverlustarmen Anfahren einer Mehrfachstrangpresse zum Herstellen von aus verschiedenen Kautschuk- oder Kunststoffmischungen bestehendenProfilstraengen,beispielsweise fuer Lauf- oder Seitenstreifen von Fahrzeugreifen
DE3535470A1 (de) * 1985-10-04 1987-04-09 Battenfeld Extrusionstech Verfahren und vorrichtung zum konstanthalten der wandstaerke beim extrudieren von blasfolien, rohren oder rohrfoermigen straengen aus kunststoff
DE3536329A1 (de) * 1985-10-11 1987-04-16 Battenfeld Extrusionstech Verfahren und vorrichtung zum konstanthalten der wandstaerke bei extrudieren von blasfolien, rohren oder rohrfoermigen straengen aus kunststoff
FR2636210B1 (fr) * 1988-09-13 1993-04-09 Kaufler Sa Dispositif pour produire en continu des morceaux de viande sensiblement parallelepipediques
EP0418681B1 (fr) * 1989-09-16 1993-06-23 Röhm Gmbh Dispositif de coextrusion
US5128077A (en) * 1991-02-12 1992-07-07 General Tire, Inc. Method for producing multicomponent extrusions having controlled component contributions
US5527499A (en) * 1995-01-31 1996-06-18 Bridgestone/Firestone, Inc. Extrusion apparatus and method with pressure equalization
DE19507598C2 (de) * 1995-03-04 1997-02-20 Uniroyal Englebert Gmbh Mehrkomponentenextruder
US5695789A (en) * 1995-06-07 1997-12-09 Harrel, Inc. Apparatus for extrusion of an article of varying content
US5725814A (en) * 1995-06-07 1998-03-10 Harrel, Inc. Extrusion of an article of varying content
NL1012032C2 (nl) * 1999-03-05 2000-09-06 Wavin Bv Werkwijze voor het vervaardigen van een buis van biaxiaal georiënteerd thermoplastisch kunststofmateriaal.
JP3834199B2 (ja) * 2000-11-22 2006-10-18 住友ゴム工業株式会社 ゴム成形方法およびゴム成形装置
US20060038310A1 (en) 2004-07-29 2006-02-23 Erik Lipson Method and apparatus for forming extruded striped plastic products with variations in width of the stripes along the length of the products and for blow molding articles formed from such extruded parts
DE602008005667D1 (de) * 2007-05-31 2011-05-05 Michelin Soc Tech Vorrichtung und Methode zur Ummantelung eines Strangs
DE102009004946B4 (de) * 2008-10-22 2015-04-09 Sikora Aktiengesellschaft Verfahren und Vorrichtung zur Messung der Temperatur eines plastifizierten Kunststoffs am Ausgang eines Extruders
DE102009048980A1 (de) * 2009-10-09 2011-04-14 Troester Gmbh & Co. Kg Spritzkopf sowie eine mit einem solchen Spritzkopf ausgestattete Extrusionsvorrichtung
US9227372B2 (en) * 2011-12-19 2016-01-05 The Goodyear Tire & Rubber Company Conicity correction for rubber component extrusion
BR112014015115B1 (pt) 2011-12-29 2021-03-16 Pirelli Tyre S.P.A. processo e aparelho para construir um pneu
US10695953B2 (en) 2012-05-31 2020-06-30 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous carpet filament
US8597553B1 (en) 2012-05-31 2013-12-03 Mohawk Industries, Inc. Systems and methods for manufacturing bulked continuous filament
US10487422B2 (en) 2012-05-31 2019-11-26 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from colored recycled pet
US10532495B2 (en) 2012-05-31 2020-01-14 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from recycled PET
US10538016B2 (en) 2012-05-31 2020-01-21 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous carpet filament
US11045979B2 (en) 2012-05-31 2021-06-29 Aladdin Manufacturing Corporation Methods for manufacturing bulked continuous filament from recycled PET
US9630353B2 (en) 2012-05-31 2017-04-25 Mohawk Industries, Inc. Method of manufacturing bulked continuous filament
US9636860B2 (en) 2012-05-31 2017-05-02 Mohawk Industries, Inc. Method of manufacturing bulked continuous filament
DE102013109346A1 (de) * 2013-08-29 2015-03-05 Continental Reifen Deutschland Gmbh Verfahren zur Herstellung von Vormaterial für Fahrzeugreifen
JP6392638B2 (ja) * 2014-11-14 2018-09-19 東洋ゴム工業株式会社 ゴム押出成型装置及び方法
DE102014117068B4 (de) 2014-11-21 2020-04-23 KraussMaffei Extrusion GmbH Mehrfach-Strangpresskopf sowie Laufprofil-Herstellvorrichtung zum Herstellen von Laufprofilen von Fahrzeugreifen
MX2017015611A (es) * 2015-06-12 2018-04-24 Pirelli Metodo y aparato para controlar la extrusion de un producto semiterminado en un proceso de fabricacion de neumaticos.
US10751915B2 (en) 2016-11-10 2020-08-25 Aladdin Manufacturing Corporation Polyethylene terephthalate coloring systems and methods
EA201991807A1 (ru) 2017-01-30 2019-12-30 Аладдин Мэньюфэкчеринг Корпорейшн Способы для изготовления объемной непрерывной нити из окрашенного вторичного полиэтилентерефталата
JP6520967B2 (ja) * 2017-02-16 2019-05-29 横浜ゴム株式会社 ゴム押出装置およびゴム押出物の製造方法
EA201992067A1 (ru) 2017-03-03 2020-03-27 Аладдин Мэньюфэкчеринг Корпорейшн Экструдеры полимеров со сдвоенным вакуумным устройством и связанные с ними способы
CA3073425A1 (fr) 2017-09-15 2019-03-21 Aladdin Manufacturing Corporation Procede et systeme de coloration de polyethylene terephtalate pour fabriquer un filament de tapis continu gonflant
US11242622B2 (en) 2018-07-20 2022-02-08 Aladdin Manufacturing Corporation Bulked continuous carpet filament manufacturing from polytrimethylene terephthalate

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3125616A (en) * 1964-03-17 Process for the production of thermoplastic polymeric
US2289933A (en) * 1941-05-09 1942-07-14 Mccreary Tire And Rubber Compa Tire tread fabrication
US2382177A (en) * 1941-10-15 1945-08-14 Goodrich Co B F Apparatus for making composite strips
US2897543A (en) * 1958-02-24 1959-08-04 Goodrich Co B F Multi-part extruder head
US3280427A (en) * 1964-02-03 1966-10-25 Cooper Tire & Rubber Co Apparatus for extruding composite black and white rubber strips for white sidewall tires
US3502752A (en) * 1967-02-13 1970-03-24 Gen Cable Corp Control of the dimensions of multiple layers of extruded insulation
DE2201631C3 (de) * 1972-01-14 1979-05-03 Paul Troester Maschinenfabrik, 3000 Hannover Strangpreßkopf zum Herstellen von Flachprofilen aus zwei verschiedenartigen Mischungen
FR2304952A1 (fr) * 1975-03-20 1976-10-15 Lesieur Cotelle Procede et dispositif pour la regulation de l'epaisseur d'une feuille plastique extrudee
US4087499A (en) * 1975-08-07 1978-05-02 The Goodyear Tire & Rubber Company Method for controlling uniformity in tire tread stock
US4088721A (en) * 1976-09-24 1978-05-09 The Goodyear Tire & Rubber Company Method and apparatus for controlling the thickness of extruded stock
US4137025A (en) * 1977-03-07 1979-01-30 Graves Kenneth E Apparatus for measuring and controlling the wall thickness of plastic pipes
US4095156A (en) * 1977-03-21 1978-06-13 Vladimir Alexeevich Borisov Device for automatic dimension control of extruded blanks
DE2723130A1 (de) * 1977-05-23 1978-12-07 Bellaplast Gmbh Verfahren und vorrichtung zum kontinuierlichen steuern des extrudiervorganges in extrudieranlagen
US4097566A (en) * 1977-06-01 1978-06-27 Nucleonics Data Systems Extrusion line control system
JPS5438363A (en) * 1977-08-31 1979-03-22 Toyoda Gosei Co Ltd Apparatus for automatic regulation of outer diameter of extrusion molded product
IT1123875B (it) * 1979-10-17 1986-04-30 Pirelli Testa di estrusione piana
US4428896A (en) * 1982-08-30 1984-01-31 The General Tire & Rubber Company Method of producing an extrudate of controlled size and shape from a roller die

Also Published As

Publication number Publication date
GB2141844B (en) 1986-04-30
GB8322513D0 (en) 1983-09-21
IT8321956A0 (it) 1983-07-06
US4515738A (en) 1985-05-07
GB2141844A (en) 1985-01-03
FR2545034A1 (fr) 1984-11-02
JPS59199230A (ja) 1984-11-12
IT1164304B (it) 1987-04-08
BR8304039A (pt) 1985-01-22
IT8321956A1 (it) 1985-01-06
SU1175359A3 (ru) 1985-08-23
DE3315184C1 (de) 1984-06-28

Similar Documents

Publication Publication Date Title
FR2545034B1 (fr) Procede et dispositif d'extrusion pour la fabrication de profiles a partir d'un ou plusieurs melanges differents de caoutchouc ou de matieres plastiques
FR2622833B1 (fr) Procede et installation pour la fabrication d'objets moules ou extrudes a partir de dechets contenant des matieres plastiques
FR2534519B1 (fr) Procede et dispositif de cristallisation de la matiere thermoplastique d'un article ou preforme provenant d'une ebauche
BE891018A (fr) Procede de purification de polymeres de sulfures d'arylene
FR2570641B1 (fr) Procede et installation pour surveiller la fabrication de profiles oblongs, en caoutchouc ou en matiere thermoplastique, constitues d'un ou de plusieurs melanges
FR2603225B1 (fr) Installation pour l'extrusion de matieres thermoplastiques.
FR2529508B1 (fr) Procede et dispositif pour la fabrication de profiles d'etancheite en elastomere
FR2587932B1 (fr) Procede et dispositif pour le demarrage avec pertes reduites de matiere d'une presse d'extrusion multiple destinee a la fabrication de profiles en differents melanges de caoutchouc ou de matiere plastique par exemple, de profiles pour bandes de roulement ou pour flancs de pneumatiques de vehicules
FR2513257B1 (fr) Composition d'encre pour indiquer l'avancement et l'achevement de la vulcanisation d'articles en caoutchouc
FR2550904B1 (fr) Film piezoelectrique de polymere et procede pour sa fabrication
BE856370A (fr) Procede pour maintenir propres des plaques a filieres ou a trous pendant l'extrusion de masses fondues de matieres plastiques
BE858824A (fr) Procede et installation pour la fabrication de matieres plastiques expansees
FR2599296B1 (fr) Procede et installation pour la fabrication d'un pneumatique a composants multiples
FR2570642B1 (fr) Procede et installation pour surveiller les dimensions d'une bande profilee en caoutchouc ou en matiere plastique, constituee d'un ou de plusieurs melanges et extrudee en continu
FR2547237B1 (fr) Extrudeuse pour matieres plastiques
FR2548086B1 (fr) Procede de fabrication d'un tube en caoutchouc profile
FR2630963B1 (fr) Appareillage pour l'extrusion de tubes plastiques homogenes; procede de fabrication de tubes homogenes au moyen de l'appareillage
FR2583676B1 (fr) Procede et appareils d'extrusion de structures alveolaires en matiere thermoplastique et structures ainsi obtenues
BE882421A (fr) Procede de fabrication d'un produit plastique autocollant et produit ainsi obtenu
FR2483440B1 (fr) Melange de caoutchouc vulcanisable et procede de vulcanisation d'un tel melange de caoutchouc
FR2333638A1 (fr) Procede pour la fabrication de bandes, en particulier de bandes transporteuses en caoutchouc ou en d'autres matieres plastiques avec garnitures de renfort
FR2563148B1 (fr) Procede d'etirage et dispositif pour la production de films thermoplastiques etires longitudinalement
FR2528857B1 (fr) Procede de fabrication de caoutchouc de chloroprene en presence d'acide polystyrenesulfonique ou de son derive
FR2539351B1 (fr) Procede et machine pour l'assemblage, le moulage et la vulcanisation de pneumatiques de vehicules
FR2563149B1 (fr) Procede et dispositif pour la production de courroies trapezoidales a flancs ouverts a partir d'un enroulement en forme de manchon vulcanise

Legal Events

Date Code Title Description
ST Notification of lapse