DE69108471T2 - Koextrusionsmaschine zum Verändern des Innen- und Aussenprofils eines rohrförmigen Extrudats. - Google Patents

Koextrusionsmaschine zum Verändern des Innen- und Aussenprofils eines rohrförmigen Extrudats.

Info

Publication number
DE69108471T2
DE69108471T2 DE69108471T DE69108471T DE69108471T2 DE 69108471 T2 DE69108471 T2 DE 69108471T2 DE 69108471 T DE69108471 T DE 69108471T DE 69108471 T DE69108471 T DE 69108471T DE 69108471 T2 DE69108471 T2 DE 69108471T2
Authority
DE
Germany
Prior art keywords
changing
outer profile
tubular extrudate
coextrusion machine
coextrusion
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 - Fee Related
Application number
DE69108471T
Other languages
English (en)
Other versions
DE69108471D1 (de
Inventor
Dale Alva Tompkins
Richard Walter Sicka
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.)
Bridgestone Firestone Inc
Original Assignee
Bridgestone Firestone Inc
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 Bridgestone Firestone Inc filed Critical Bridgestone Firestone Inc
Application granted granted Critical
Publication of DE69108471D1 publication Critical patent/DE69108471D1/de
Publication of DE69108471T2 publication Critical patent/DE69108471T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0013—Extrusion moulding in several steps, i.e. components merging outside the die
    • B29C48/0015—Extrusion moulding in several steps, i.e. components merging outside the die producing hollow articles having components brought in contact outside the extrusion 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
    • B29C48/03—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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer 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
    • B29C48/16—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
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming 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
    • B29C48/325—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles being adjustable, i.e. having adjustable exit sections
    • 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
    • B29C48/475—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using pistons, accumulators or press rams
    • B29C48/48—Two or more rams or pistons
    • 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
    • B29C48/49—Means 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
    • 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
    • B29C2948/92504—Controlled parameter
    • B29C2948/92514—Pressure
    • 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
    • B29C2948/926—Flow or feed rate
    • 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
    • B29C2948/92876—Feeding, melting, plasticising or pumping zones, e.g. the melt itself
    • B29C2948/92895—Barrel or housing
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Moulding By Coating Moulds (AREA)
  • Tyre Moulding (AREA)
DE69108471T 1990-07-24 1991-07-08 Koextrusionsmaschine zum Verändern des Innen- und Aussenprofils eines rohrförmigen Extrudats. Expired - Fee Related DE69108471T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/557,191 US5062782A (en) 1990-07-24 1990-07-24 Coextrusion apparatus for varying the inner and/or outer profile of a tubular extrudate

Publications (2)

Publication Number Publication Date
DE69108471D1 DE69108471D1 (de) 1995-05-04
DE69108471T2 true DE69108471T2 (de) 1995-07-27

Family

ID=24224385

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69108471T Expired - Fee Related DE69108471T2 (de) 1990-07-24 1991-07-08 Koextrusionsmaschine zum Verändern des Innen- und Aussenprofils eines rohrförmigen Extrudats.

Country Status (5)

Country Link
US (1) US5062782A (de)
EP (1) EP0468268B1 (de)
JP (1) JP2530395B2 (de)
DE (1) DE69108471T2 (de)
ES (1) ES2069782T3 (de)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5265257A (en) * 1990-06-22 1993-11-23 Digital Equipment Corporation Fast arbiter having easy scaling for large numbers of requesters, large numbers of resource types with multiple instances of each type, and selectable queuing disciplines
US5128084A (en) * 1990-07-24 1992-07-07 Bridgestone Firestone Inc Coextrusion apparatus and method for varying the inner profile of a tubular extrudate
DE4111229A1 (de) * 1991-04-08 1992-10-15 Wilhelm Hegler Vorrichtung zur herstellung von kunststoff-rohren
US5292472A (en) * 1992-12-18 1994-03-08 Bridgestone Corporation Coextrusion apparatus and method with rotating cord guidance
US5792529A (en) * 1994-12-21 1998-08-11 Intek Weatherseal Products, Inc. Reinforced plastic extrusion
US5776519A (en) * 1997-06-06 1998-07-07 Graham Engineering Corporation Parison extrusion head with quick change die ring clamp assembly
US6174478B1 (en) 1998-09-25 2001-01-16 Silver-Line Plastics Corporation Method and apparatus for simultaneous extrusion of two triple-wall pipes
US6402410B1 (en) 1999-01-13 2002-06-11 Philips Oral Healthcare Fluid-dispensing and refilling system for a power toothbrush
CA2403543C (en) * 2000-04-13 2007-09-18 Ole-Bendt Rasmussen Method and apparatus for joining sheet or ribbon formed flows in a coextrusion process
FI111057B (fi) * 2000-05-29 2003-05-30 Conenor Oy Ekstruusiomenetelmä ja ekstruusiolaite
US7585532B2 (en) * 2001-10-29 2009-09-08 Frito-Lay North America, Inc. Apparatus and method for improving the dimensional quality of extruded food products having complex shapes
US20070141284A1 (en) * 2005-12-19 2007-06-21 Saint-Gobain Performance Plastics Corporation Smooth bore flexible fluid conduit
US20070190201A1 (en) * 2006-02-13 2007-08-16 Irwin Jere E Extruder die assembly, extruder, and method
DE102007025507A1 (de) * 2007-06-01 2008-12-04 Vmi - Az Extrusion Gmbh Ringextruder
WO2009129376A2 (en) * 2008-04-16 2009-10-22 Kerry, Inc. Co-extruder having a filling entrance from the rear
JP5427834B2 (ja) * 2011-05-23 2014-02-26 株式会社日本製鋼所 クロスヘッド
CN115008719B (zh) * 2022-06-10 2022-12-06 宁波双德天利机械制造有限公司 一种拼接共挤机头及具有该机头的挤出设备

Family Cites Families (36)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2501690A (en) * 1947-12-09 1950-03-28 Carter Products Corp Method and apparatus for making multiple layer plastic conduits
US2736921A (en) * 1953-06-24 1956-03-06 Us Rubber Co Method and apparatus for forming self-sealing inner tube
US3078507A (en) * 1958-11-19 1963-02-26 Brockway Glass Co Inc Method and apparatus for making plastic articles
DE1207606B (de) * 1961-08-03 1965-12-23 Rastatter Kunststoffwerk G M B Vorrichtung zum Auspressen eines Schlauches unterschiedlicher Wandstaerke aus thermoplastischen Kunststoffen
US3587281A (en) * 1961-10-02 1971-06-28 Jerome H Lemelson Extrusion die apparatus
US3944641A (en) * 1961-10-02 1976-03-16 Lemelson Jerome H Process of forming an irregular surface on the inside of a tube or pipe
US3134832A (en) * 1962-02-16 1964-05-26 Dow Corning Method for producing extruded articles
US3281896A (en) * 1963-09-12 1966-11-01 Dow Chemical Co Parison extrusion die
US3453690A (en) * 1967-05-26 1969-07-08 Midland Ross Corp Variable area extruder die-head
US3840311A (en) * 1971-06-01 1974-10-08 Glacier Industries Apparatus for extruding multi-flavor ice cream products of varied shapes
GB1370281A (en) * 1971-09-02 1974-10-16 Creators Ltd Flexible plastics hoses
GB1456198A (en) * 1972-11-29 1976-11-17 Ici Ltd Reinforced containers
US3940221A (en) * 1973-09-10 1976-02-24 Welex Incorporated Thickness control system for an extrusion die
DE2510127C2 (de) * 1975-03-06 1983-09-22 Battenfeld Maschinenfabriken Gmbh, 5882 Meinerzhagen Strangpreßkopf zum Herstellen eines aus zwei konzentrischen, mit ihren Fließnähten versetzt zueinander angeordneten Schichten bestehenden Verbundschlauches aus thermoplastischem Kunststoff
US4029458A (en) * 1975-06-24 1977-06-14 The B.F. Goodrich Company Extrusion die
US4047868A (en) * 1975-08-12 1977-09-13 Toppan Printing Co., Ltd. Multilayer parison extrusion molding machine for blow molding
FR2332121A1 (fr) * 1975-11-18 1977-06-17 Raychem Aps Extrudeuse a filiere multiple
US4149839A (en) * 1975-12-30 1979-04-17 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Blow molding apparatus
DE2654001C2 (de) * 1976-11-27 1986-02-06 Harald 5210 Troisdorf Feuerherm Vorrichtung zum Herstellen von aus thermoplastischem Kunstoff bestehenden Hohlkörpern
US4171195A (en) * 1977-11-17 1979-10-16 Scientific Process & Research, Inc. Cross-head die with volumetric flow compensation means
US4249875A (en) * 1978-09-15 1981-02-10 Cosden Technology, Inc. Co-extrusion apparatus and method for producing multiple-layered thermoplastic pipe
CH640457A5 (de) * 1979-05-28 1984-01-13 Schiesser Ag Verfahren und vorrichtung zur bildung der inneren wandteile von fahrzeugreifen.
DE3043228A1 (de) * 1980-11-15 1982-07-01 Mauser-Werke GmbH, 5040 Brühl Strangpresskopf
DE3043204A1 (de) * 1980-11-15 1982-07-01 Mauser-Werke GmbH, 5040 Brühl Austrittsduese
FR2503627A1 (fr) * 1981-04-09 1982-10-15 Raffinage Cie Francaise Tete pour l'extrusion d'une paraison tubulaire a au moins une couche de matiere
US4465449A (en) * 1982-12-06 1984-08-14 Borg-Warner Chemicals, Inc. Coextrusion feedblock for making lightweight, rigid thermoplastic pipe
DE3301248A1 (de) * 1983-01-15 1984-07-19 Mauser-Werke GmbH, 5040 Brühl Strangpresskopf
US4507071A (en) * 1983-05-12 1985-03-26 Cosden Technology, Inc. Coextrusion apparatus for producing multiple layered thermoplastic pipe
DE3414444A1 (de) * 1984-04-17 1985-10-17 Continental Gummi-Werke Ag, 3000 Hannover Strangpresse
US4578025A (en) * 1984-11-21 1986-03-25 Kazuo Ando Die assembly for extruding multilayer parisons
US4578024A (en) * 1985-02-22 1986-03-25 The Firestone Tire & Rubber Company Coextrusion apparatus
US4657718A (en) * 1985-02-22 1987-04-14 The Firestone Tire & Rubber Company Coextrusion method
US4776909A (en) * 1986-07-28 1988-10-11 The Firestone Tire & Rubber Company Method for making coextruded seamless tubular tire bodies for use in pneumatic tires
CA1303315C (en) * 1988-09-16 1992-06-16 Manfred A.A. Lupke Apparatus for producing pipe with annular ribs
ZA897738B (en) * 1988-11-23 1990-07-25 American National Can Co Apparatus for extrusion blow molding equipment,blow molding articles,parisons and containers made therefrom and methods for forming the same
US4946364A (en) * 1989-05-31 1990-08-07 Rcm, Ltd., Rubber Consulting & Machinery Apparatus for manufacturing reinforced polymeric tubing

Also Published As

Publication number Publication date
JP2530395B2 (ja) 1996-09-04
DE69108471D1 (de) 1995-05-04
JPH04250019A (ja) 1992-09-04
EP0468268A2 (de) 1992-01-29
EP0468268B1 (de) 1995-03-29
ES2069782T3 (es) 1995-05-16
EP0468268A3 (en) 1992-04-29
US5062782A (en) 1991-11-05

Similar Documents

Publication Publication Date Title
DE69108471D1 (de) Koextrusionsmaschine zum Verändern des Innen- und Aussenprofils eines rohrförmigen Extrudats.
DE59001567D1 (de) Drucksensor und dessen herstellverfahren.
BR9501402A (pt) Mandril
BR9400483A (pt) Material de malha tubular de superfície dupla
DE69112944T2 (de) Koextrusionsmaschine und Verfahren zum Verändern des Innenprofils eines rohrförmigen Extrudats.
DE59101391D1 (de) Integrierbarer, kapazitiver Drucksensor und Verfahren zum Herstellen desselben.
DE69505993D1 (de) Düse zum extrudieren eines fluidstromes
BR9304705A (pt) Mandril
DE69607644D1 (de) Verpackungsmaschine mit formrohr
DE69102219D1 (de) Koextrusionsmaschine und Verwendung eines starren Düsenabschnitts zum Verändern des Aussenprofils eines rohrförmigen Extrudats.
DE59100521D1 (de) Verfahren zum werkzeugfreien Umformen eines Hohlkörpers.
DE69105873D1 (de) Coextrusionsvorrichtung und -verfahren unter Verwendung einer elastischen Düse zum Verändern des Aussenprofils eines rohrförmigen Strangpresslings.
DE69511096T2 (de) Expandierbares, mehrschichtiges material
BR9506359A (pt) Máquina para sacos tubulares
OA09536A (fr) Tube de production avec ligne hydraulique integree
DE59100324D1 (de) Aufblasbares Rohrdichtkissen.
DE69218447T2 (de) Walze mit mitteln zum axialen bewegen derselben
DE69022070T2 (de) Rohreifenaufbaumaschine.
KR970703822A (ko) 이음새 없이 열간 처리하는 관 제조공정
DE69019166T2 (de) Rohreifenaufbaumaschine.
DE9420326U1 (de) Schlauchbeutelherstellungsmaschine
DE69103082T2 (de) Profilwalzmaschine.
DE69401752T2 (de) Radial-extrusionsverfahren kombiniert mit innerem glattziehen des rohres
KR930006407U (ko) 타이어튜브성형기
DE69033992D1 (de) Matrize zum Strangpressen

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee