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WO2003078135A1 - Extrudeuse a plusieurs arbres comprenant au moins une vis d'evacuation distincte allongee - Google Patents

Extrudeuse a plusieurs arbres comprenant au moins une vis d'evacuation distincte allongee Download PDF

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Publication number
WO2003078135A1
WO2003078135A1 PCT/CH2003/000141 CH0300141W WO03078135A1 WO 2003078135 A1 WO2003078135 A1 WO 2003078135A1 CH 0300141 W CH0300141 W CH 0300141W WO 03078135 A1 WO03078135 A1 WO 03078135A1
Authority
WO
WIPO (PCT)
Prior art keywords
process space
shaft
cylindrical
processing
shafts
Prior art date
Application number
PCT/CH2003/000141
Other languages
German (de)
English (en)
Inventor
Federico Innerebner
Christoph NÄF
Bernhard Fritsche
Andreas Christel
Achim-Philipp Sturm
Original Assignee
Bühler AG
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 Bühler AG filed Critical Bühler AG
Priority to AU2003205494A priority Critical patent/AU2003205494A1/en
Priority to DE10390957T priority patent/DE10390957B4/de
Publication of WO2003078135A1 publication Critical patent/WO2003078135A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/46—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft
    • B29B7/48—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws
    • B29B7/485—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with more than one shaft with intermeshing devices, e.g. screws with three or more shafts provided with screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/74—Mixing; Kneading using other mixers or combinations of mixers, e.g. of dissimilar mixers ; Plant
    • B29B7/7476—Systems, i.e. flow charts or diagrams; Plants
    • B29B7/7495—Systems, i.e. flow charts or diagrams; Plants for mixing rubber
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/425—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders using three or more screws
    • B29C48/43—Ring extruders
    • 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
    • B29C48/395—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders
    • B29C48/40—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using screws surrounded by a cooperating barrel, e.g. single screw extruders using two or more parallel screws or at least two parallel non-intermeshing screws, e.g. twin screw extruders
    • B29C48/435—Sub-screws
    • 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
    • B29C48/50—Details of extruders
    • B29C48/68—Barrels or cylinders
    • B29C48/682—Barrels or cylinders for twin screws
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • 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
    • B29K2007/00—Use of natural rubber as moulding material
    • 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
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Definitions

  • the invention relates to a multi-shaft extruder for processing an elastomer, in particular a thermoplastic elastomer, such as e.g. Natural rubber, synthetic rubber or rubber mixtures, the multi-shaft extruder having a multiplicity of processing shafts arranged in a housing and parallel to one another with processing elements which convey at least in axial partial areas.
  • processing elements which convey at least in axial partial areas.
  • These machining elements of adjacent machining shafts are arranged in an interlocking manner, and the inner walls of the process space on both sides of the machining shafts have parallel cylindrical recesses in which the machining shafts are mounted on both sides. In this way, a first sub-process space and a second sub-process space on the one side and the other side of the barrier formed by the mutually parallel machining shafts in the housing are determined.
  • Such multi-shaft extruders are particularly well suited for compounding tasks based on distributive and dispersive mixing, since in the process space both the thorough mixing and the shear of the processed material take place.
  • This advantage of the multi-shaft extruder is paid for by the disadvantage that it has a relatively weak pumping or conveying effect.
  • an elastomer in particular a thermoplastic elastomer, such as natural rubber, synthetic rubber or rubber mixtures
  • the product is subjected to particularly high mechanical and thermal stresses during its processing, which can lead to mechanical and / or thermal damage to the elastomer molecules of the product.
  • the object of the invention is therefore to prevent this compression and potential damage to the elastomer in the multi-screw extruder mentioned at the outset.
  • the process space of the multi-shaft extruder consists, at least in its outlet-side end region, of at least one cylindrical partial process space, in each of which a conveyor shaft is rotatably mounted, which has conveyor elements at least over an axial sub-region.
  • a pumping action is imparted to the outlet-side end region, which counteracts the compression mentioned and the associated impairments of the product.
  • the at least one cylindrical sub-process space with the conveyor shaft mounted therein is expediently arranged collinearly along the axial extension of at least one machining shaft of the plurality of mutually parallel machining shafts arranged in the housing.
  • This collinear arrangement is structurally relatively easy to implement.
  • a cylindrical partial process space with the conveyor shaft mounted therein is arranged collinearly along the axial extension of every second machining shaft of the plurality of mutually parallel machining shafts arranged in the housing.
  • the housing of the multi-shaft extruder according to the invention can then be formed by overlapping parallel bores to a certain depth, which form the process space in which the machining shafts with the intermeshing machining elements are rotatably supported.
  • the length of this process space along the axial product conveying direction then corresponds to the depth of the overlapping bores.
  • every second one of the overlapping parallel bores is simply made with a greater depth than the other of the overlapping parallel bores.
  • the difference in the drilling depths corresponds to the length of the cylindrical partial process rooms with pump effect.
  • the product conveyed through the processing space through the processing shafts thus travels along the machining shafts extended by the conveyor shafts either directly into the pumping cylindrical partial process spaces or at the end of the non-extended machining shafts it is introduced obliquely into the adjacent cylindrical partial process spaces.
  • the transition area between the end of the small depth holes to the wall area of the larger depth holes forming the cylindrical partial process spaces is preferred than contrary to the product Convex surface pointing in the direction of conveyance, in particular as a cone or truncated cone, so that the product is deflected by the convex surface, in particular the lateral surface of the cone or truncated cone.
  • a cylindrical sub-process space is arranged in the axial extension of each of the plurality of machining shafts, the radius of each cylindrical sub-process space and the conveyor shaft rotatably mounted in it being smaller than the radius of the cylindrical indentations of the process space inner walls that the cylindrical partial process spaces are separated from each other by housing material.
  • the housing of the multi-shaft extruder according to the invention can then also be formed by overlapping parallel bores to a certain depth with a certain drilling radius in order to form the process space in which the machining shafts with the intermeshing machining elements are rotatably mounted.
  • the length of this process space along the axial product conveying direction corresponds to the depth of the overlapping bores with the specific drilling radius.
  • each of the existing overlapping parallel bores, which have the specific depth and the specific drilling radius are extended to a greater depth with a smaller drilling radius.
  • the difference in drilling depths also corresponds to the length of the cylindrical partial process rooms with pumping action.
  • the transition between the bore areas of large radii to the wall areas of the bore areas forming small cylindrical radii is preferably beveled, here in particular a truncated cone surface is also possible.
  • the process space of the multi-shaft extruder in its outlet-side end area can also consist of a cylindrical partial process space with a conveyor shaft mounted therein, the partial process space and the conveyor shaft stored therein being assigned differently than collinearly to the plurality of mutually parallel processing shafts arranged in the housing are.
  • the multiplicity of machining shafts are arranged in a ring-like, in particular circular, manner, the first sub-process space being an inner process space arranged radially inside the shaft ring and the second sub-process space being an outer process space arranged radially outside the shaft ring, and the first housing part a core arranged radially inside the process space and the second housing part is a jacket arranged radially outside the process space, which surrounds the process space.
  • the process space of such a ring extruder preferably consists in its outlet-side end area of a cylindrical partial process space with a conveying shaft mounted therein, the axis of the partial process space and the conveying shaft mounted therein running parallel to the plurality of mutually parallel machining shafts arranged in the housing.
  • a common pump area is formed at the end of the process room.
  • the axis of the sub-process space and the conveyor shaft mounted therein are preferably arranged centrally with respect to the shaft ring consisting of the machining shafts. This geometry enables the bearing and the drive of the common conveyor shaft of the cylindrical subpro zessraumes in or through the core of the ring extruder.
  • a shaping nozzle can be arranged at the end of the at least one cylindrical partial process space with the respective conveying shaft mounted therein.
  • the respective conveyor shaft of the cylindrical sub-process space is expediently driven by the same drive as the plurality of machining shafts.
  • the respective delivery shaft of the cylindrical sub-process space is connected in a rotationally fixed manner to the respective processing shaft which is collinear with it and is driven by the same drive as the plurality of processing shafts.
  • FIG. 1A schematically shows a central longitudinal section of a first exemplary embodiment of the housing of the multi-shaft extruder according to the invention
  • Fig. 1B shows a cross section of the housing of Fig. 1A along the section plane I-I;
  • Fig. 1C shows a cross section of the housing of Fig. 1A along the section plane II-II;
  • FIG. 2A schematically shows a central longitudinal section of a second exemplary embodiment of the housing of the multi-shaft extruder according to the invention
  • Fig. 2B shows a cross section of the housing of Fig. 2A along the section plane III-III;
  • Fig. 2C shows a cross section of the housing of Fig. 2A along the section plane IV-IV;
  • FIG. 3A schematically shows a central longitudinal section of a third exemplary embodiment of the housing of the multi-shaft extruder according to the invention
  • Fig. 3B shows a cross section of the housing of Fig. 3A along the section plane V-V;
  • FIG. 3C shows a cross section of the housing of FIG. 3A along the sectional plane VI-VI.
  • the housing 1a schematically shows a central longitudinal section of a first embodiment of the housing of the multi-shaft extruder according to the invention.
  • the housing 1 surrounds a process space 2 and two cylindrical partial process spaces 3, 4.
  • the process space 2 of the multi-shaft extruder consists of several mutually parallel bores which partially overlap one another (see FIG. 2B). Machining shafts (not shown) are rotatably mounted in it.
  • the machining shafts and the machining elements attached to them (screw elements, kneading elements, etc.) and the partially overlapping bores of the process space 2 are designed in such a way that the machining shafts with their machining elements are arranged to interlock.
  • the process space 2 also has two cylindrical partial process spaces 3, 4, which are formed by the extension of the second or third bore of the five overlapping bores of the process space 2.
  • a truncated cone-shaped bevel 3a or 4a is formed in the entry area from the process space 2 into the cylindrical partial process space 3 or the cylindrical partial process space 4.
  • These bevels 3a and 4a facilitate the transition from process room 2, in which an intensive mechanical processing of the product predominantly takes place, to sub-process rooms 3 and 4, thereby reducing the transport resistance of the extruder and avoiding dead areas in the process room.
  • the second and third the five processing shafts (not shown) of the process space 2 extend from the process space 2 into the cylindrical sub-process space 3 or the cylindrical sub-process space 4. In their area projecting into the cylindrical sub-process spaces 3 and 4, the processing shafts have conveying areas (not shown), so that an excellent pumping effect is achieved in the operation of the multi-shaft extruder according to the invention in these cylindrical partial process rooms 3 and 4.
  • Fig. 1B shows schematically a cross section of the housing of Fig. 1A along the section plane l-l.
  • the housing 1 surrounds the process space 2, which has mutually opposite indentations on its process space inner walls.
  • the lower process chamber inner wall comprises five cylindrical indentations 2a, 2b, 2c, 2d and 2e, while the upper process chamber inner wall comprises five cylindrical indentations 2a ', 2b', 2c ', 2d', 2e '.
  • a first sub-process space (bottom) and a second sub-process space (top) are formed by the mutually intermeshing machining shafts (not shown) which are rotatably supported between these cylindrical indentations of the process space inner walls. Between these two sub-process areas, the interlocking machining shafts (not shown) form a more or less permeable barrier depending on the nature of the machining elements.
  • Fig. 1 C shows schematically a cross section of the housing of Fig. 1A along the section plane II-II.
  • Fig. 1 C shows schematically a cross section of the housing of Fig. 1A along the section plane II-II.
  • the housing area 1a which separates the two sub-process spaces 3 and 4 from one another.
  • FIG. 2A schematically shows a central longitudinal section of a second exemplary embodiment of the housing of the multi-shaft extruder according to the invention.
  • the left half of the extruder is identical to the left half of the extruder of Fig. 1A.
  • a housing 1 surrounds a process space 2 and five further cylindrical partial process spaces 5, 6, 7, 8 and 9. These five cylindrical partial process spaces 5, 6, 7, 8 and 9 are separated from one another by four separating housing areas 1a, 1b, 1c, 1d Cut.
  • the transition from the process space 2 into the five cylindrical partial process spaces 5, 6, 7, 8 and 9 are each formed as a truncated cone-shaped bevel 5a, 6a, 7a, 8a and 9a.
  • FIG. 2B shows a cross section of the housing of FIG. 2A along the section plane III-III and is identical to FIG. 1 B.
  • Fig. 2C shows a cross section of the housing of Fig. 2A along the section plane IV-IV.
  • FIG. 3A schematically shows a central longitudinal section of a third exemplary embodiment of the housing of the multi-shaft extruder according to the invention.
  • the housing consists of a core 10 and a casing 11, between which an essentially circular process space 2 extends, which merges into a coreless partial process space 3 surrounded only by the casing 11.
  • the process space 2 of this third exemplary embodiment consists of several parallel bores, which partially overlap one another and are arranged on a circular line. In the present case, there are eight partially overlapping holes, which are arranged on a circular line.
  • cylindrical indentations 2a, 2b, 2c, 2d, 2e, 2f, 2g, 2h are formed on the radially outer process space inner wall on the inside of the jacket 11, while on the radially inner process space inner wall on the outer surface corresponding cylindrical indentations 2a ', 2b', 2c ', 2d ⁇ 2e', 2f, 2g ', 2h' are formed for the core 10 (see FIG. 3B).
  • An axial bore 10a extends in the interior of the core 10 and is formed collinearly or coaxially with the cylindrical partial process space 3.
  • a shaft (also not shown) extends through the bore 10a of the core 10 over the process space into the cylindrical partial process space 3.
  • FIG. 3B schematically shows a cross section of the housing from FIG. 3A along the section plane VV.
  • the pro- gram extends between the core 10 and the jacket 11.
  • Zessraum 2 wherein the entirety of the outer cylindrical indentations 2a to 2h and the entirety of the inner cylindrical indentations 2a 'to 2h' appear as an outer or inner "flower", between which the propagation waves (not shown) are rotatably mounted.
  • the bore 10a can be seen in the interior of the core 10.
  • FIG. 3C schematically shows a cross section of the housing from FIG. 3A along the sectional plane VI-VI.
  • a conveyor shaft equipped with conveying elements, at least in axial subregions, extends into the cylindrical subprocess spaces.
  • conveying waves help to make the pressure increase of the product mentioned at the beginning in the end region of the intermeshing machining waves less than in the prior art.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

L'invention concerne une extrudeuse à plusieurs arbres pour usiner ou transformer un élastomère, notamment un élastomère thermoplastique comme du caoutchouc naturel, du caoutchouc synthétique ou des mélanges de caoutchouc. Selon l'invention, l'extrudeuse à plusieurs arbres comprend une multitude d'arbres d'usinage placés dans un carter, parallèles entre eux et pourvus dans au moins des zones partielles axiales d'éléments d'usinage transporteurs. Ces éléments d'usinage d'arbres d'usinage voisins s'engrènent les uns dans les autres et les parois intérieures de la chambre de processus des deux côtés des arbres d'usinage présentent des creux cylindriques, parallèles aux arbres d'usinage ainsi qu'entre eux, dans lesquels les arbres d'usinage sont installés des deux côtés. La chambre de processus de l'extrudeuse à plusieurs arbres est constituée, au moins dans sa zone terminale côté sortie, d'au moins un compartiment de processus cylindrique dans lequel est logé rotatif un arbre de transport correspondant qui présente des éléments de transport dans au moins une zone partielle axiale.
PCT/CH2003/000141 2002-03-15 2003-02-25 Extrudeuse a plusieurs arbres comprenant au moins une vis d'evacuation distincte allongee WO2003078135A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
AU2003205494A AU2003205494A1 (en) 2002-03-15 2003-02-25 Multi-screw extruder comprising at least one elongated, separate discharge screw
DE10390957T DE10390957B4 (de) 2002-03-15 2003-02-25 Mehrwellen-Extruder mit Austragsschnecke

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10211673.3 2002-03-15
DE10211673A DE10211673A1 (de) 2002-03-15 2002-03-15 Mehrwellen-Extruder mit Austragsschnecke

Publications (1)

Publication Number Publication Date
WO2003078135A1 true WO2003078135A1 (fr) 2003-09-25

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ID=27771373

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PCT/CH2003/000141 WO2003078135A1 (fr) 2002-03-15 2003-02-25 Extrudeuse a plusieurs arbres comprenant au moins une vis d'evacuation distincte allongee

Country Status (3)

Country Link
AU (1) AU2003205494A1 (fr)
DE (2) DE10211673A1 (fr)
WO (1) WO2003078135A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338660B1 (fr) * 2009-12-23 2017-09-06 The Goodyear Tire & Rubber Company Appareil et méthode pour l'application de mélange de caoutchouc sur un noyau

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10317357B4 (de) 2003-04-15 2006-10-26 3+Extruder Gmbh Extruder
DE10356332A1 (de) * 2003-11-28 2005-06-23 Bühler AG Mehrwellenextruder zur Verarbeitung von hochviskoser Materialien

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563396A (en) * 1939-02-06 1951-08-07 Method and apparatus fob manufac
DE962746C (de) * 1953-08-01 1957-04-25 Dynamit Nobel Ag Vorrichtung zur Herstellung von Folien, Bahnen, Rohren oder Profilen aus thermoplastischen Kunststoffen
DE1200517B (de) * 1957-04-30 1965-09-09 Ankerwerk Gebr Goller Schnecken-Strangpresse zur Verarbeitung von Kunststoffen
US3640669A (en) * 1968-11-18 1972-02-08 Dorplastex Ag Multiple-screw extruder
US5106198A (en) * 1990-01-24 1992-04-21 Hermann Berstorff Maschinenbau Gmbh Apparatus for treating molten material
WO1997031766A2 (fr) * 1996-02-29 1997-09-04 Fritsch, Rosemarie, I. Machine a vis sans fin

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL67209C (fr) * 1943-04-30 1900-01-01
DE3908415A1 (de) * 1989-03-15 1990-09-20 Rust & Mitschke Entex Verarbeitung von gummimischungen
DE4231232C1 (en) * 1992-09-18 1993-08-19 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De High efficiency degassing process for e.g. thermoplastic melts - mixes melt with injected liq. under pressure in extruder, releases pressure to form foam breaks up foam, degasses and spreads into thin film
DE19607663C2 (de) * 1996-02-29 1999-01-21 Fritsch Rosemarie I Compoundiermaschine
DE10050295A1 (de) * 2000-10-10 2002-04-11 Buehler Ag Mehrwellen-Extruder und Verfahren zur Aufbereitung und/oder Vorarbeitung von mit Füllstoff versetzten Elastomeren
DE10150627A1 (de) * 2001-10-12 2003-05-15 Gneuss Kunststofftechnik Gmbh Extruder zur Gewinnung von Kunststoff-Schmelzen

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2563396A (en) * 1939-02-06 1951-08-07 Method and apparatus fob manufac
DE962746C (de) * 1953-08-01 1957-04-25 Dynamit Nobel Ag Vorrichtung zur Herstellung von Folien, Bahnen, Rohren oder Profilen aus thermoplastischen Kunststoffen
DE1200517B (de) * 1957-04-30 1965-09-09 Ankerwerk Gebr Goller Schnecken-Strangpresse zur Verarbeitung von Kunststoffen
US3640669A (en) * 1968-11-18 1972-02-08 Dorplastex Ag Multiple-screw extruder
US5106198A (en) * 1990-01-24 1992-04-21 Hermann Berstorff Maschinenbau Gmbh Apparatus for treating molten material
WO1997031766A2 (fr) * 1996-02-29 1997-09-04 Fritsch, Rosemarie, I. Machine a vis sans fin

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2338660B1 (fr) * 2009-12-23 2017-09-06 The Goodyear Tire & Rubber Company Appareil et méthode pour l'application de mélange de caoutchouc sur un noyau

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DE10390957B4 (de) 2006-11-09
AU2003205494A1 (en) 2003-09-29
DE10390957D2 (de) 2005-05-19

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