DE69704289D1 - Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material - Google Patents

Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material

Info

Publication number
DE69704289D1
DE69704289D1 DE69704289T DE69704289T DE69704289D1 DE 69704289 D1 DE69704289 D1 DE 69704289D1 DE 69704289 T DE69704289 T DE 69704289T DE 69704289 T DE69704289 T DE 69704289T DE 69704289 D1 DE69704289 D1 DE 69704289D1
Authority
DE
Germany
Prior art keywords
mixing
thermoplastic material
continuous rolls
rolls
continuous
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 - Lifetime
Application number
DE69704289T
Other languages
English (en)
Other versions
DE69704289T2 (de
Inventor
Vittorino Rampazzo
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.)
Techint Compagnia Tecnica Internazionale SpA
Original Assignee
Techint Compagnia Tecnica Internazionale SpA
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 Techint Compagnia Tecnica Internazionale SpA filed Critical Techint Compagnia Tecnica Internazionale SpA
Application granted granted Critical
Publication of DE69704289D1 publication Critical patent/DE69704289D1/de
Publication of DE69704289T2 publication Critical patent/DE69704289T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
    • 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
    • B29B7/488—Parts, e.g. casings, sealings; Accessories, e.g. flow controlling or throttling devices
    • B29B7/489—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
    • B29C48/27—Cleaning; Purging; Avoiding contamination
    • B29C48/2715—Cleaning; Purging; Avoiding contamination of plasticising units
    • 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
    • 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
    • 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
    • B29C48/402—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 the screws having intermeshing parts
    • 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
    • B29C48/405—Intermeshing co-rotating 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
    • B29C48/505—Screws
    • B29C48/57—Screws provided with kneading disc-like elements, e.g. with oval-shaped elements
    • 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
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)
DE69704289T 1996-02-07 1997-01-29 Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material Expired - Lifetime DE69704289T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT96MI000219A IT1282578B1 (it) 1996-02-07 1996-02-07 Procedimento e macchina per la mescolazione con laminazione in continuo di materiale termoplastico

Publications (2)

Publication Number Publication Date
DE69704289D1 true DE69704289D1 (de) 2001-04-26
DE69704289T2 DE69704289T2 (de) 2001-10-18

Family

ID=11373166

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69704289T Expired - Lifetime DE69704289T2 (de) 1996-02-07 1997-01-29 Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material

Country Status (4)

Country Link
EP (1) EP0788868B1 (de)
JP (1) JPH09314641A (de)
DE (1) DE69704289T2 (de)
IT (1) IT1282578B1 (de)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6062719A (en) * 1996-09-24 2000-05-16 The Dow Chemical Company High efficiency extruder
JP3499414B2 (ja) * 1996-12-24 2004-02-23 株式会社神戸製鋼所 ２軸混練機
DE19950917A1 (de) * 1999-10-21 2001-04-26 Degussa Doppelschneckenextruder mit neuen Schneckenelementen
DE10143570A1 (de) * 2001-09-05 2003-03-20 Buehler Ag Entgasung von fließfähigen Massen in einem Mehrwellenextruder
RU2538852C2 (ru) 2009-07-16 2015-01-10 Йозеф А. Блах Экструдер
AT509710B1 (de) 2010-03-24 2011-11-15 Josef Ing Blach Extruder
AT512974B1 (de) 2012-05-23 2015-02-15 Josef A Ing Blach Mehrwellenextruder
WO2020173729A1 (de) 2019-02-27 2020-09-03 Covestro Intellectual Property Gmbh & Co. Kg Schneckenelement mit nicht-achsensymmetrischem schneckenprofil, das mindestens zwei konstruktionspunkte aufweist, die innerhalb des schneckenprofils liegen
WO2023198550A1 (de) 2022-04-11 2023-10-19 Covestro Deutschland Ag Mehrwellige schneckenmaschine mit einem paar schneckenelementen mit verbesserter misch- und entgasungswirkung bei reduziertem energieeintrag

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4131371A (en) * 1977-08-03 1978-12-26 E. I. Du Pont De Nemours And Company Co-rotating multiple screw processor
JPS5829733B2 (ja) * 1977-11-19 1983-06-24 積水化学工業株式会社 押出機
JPS5551543A (en) * 1978-10-12 1980-04-15 Toshiba Mach Co Ltd Conical multi-shaft extruder screw
DE3014643A1 (de) * 1980-04-16 1981-10-22 Bayer Ag, 5090 Leverkusen Gleichsinnig rotierbare doppelschnecke
SU1634511A2 (ru) * 1988-07-04 1991-03-15 Тамбовское Научно-Производственное Объединение Полимерного Машиностроения "Полимермаш" Черв чный смеситель дл переработки полимеров

Also Published As

Publication number Publication date
DE69704289T2 (de) 2001-10-18
ITMI960219A1 (it) 1997-08-07
IT1282578B1 (it) 1998-03-31
EP0788868B1 (de) 2001-03-21
JPH09314641A (ja) 1997-12-09
EP0788868A1 (de) 1997-08-13
ITMI960219A0 (de) 1996-02-07

Similar Documents

Publication Publication Date Title
DE59306123D1 (de) Verfahren und vorrichtung zum recycling von begastem kunststoffmaterial
DE69524915T2 (de) Mischvorrichtung und Verfahren zum Zuführen von faserverstärkte Kunststoffschmelze mit Gebrauch dieser Vorrichtung
DE59408851D1 (de) Vorrichtung und Verfahren zum Zerkleinern und Mischen von Gut
DE69602064D1 (de) Verfahren sowie Vorrichtung zum Zuschneiden von Materialbahnen
DE69735520D1 (de) Verfahren und Vorrichtung zum Verbinden von Bauteilen mit mehreren Zusatzwerkstoffen
DE69516233T2 (de) Vorrichtung und Verfahren zum Langsscheiden von Bandmaterial
DE59709577D1 (de) Schichtmaterial sowie vorrichtung und verfahren zum herstellen von schichtmaterial
DE69611692T2 (de) Verfahren und vorrichtung zum aufbringen von kleinen flüssigen materialmengen
DE69600131D1 (de) Laserschneidgerät und Verfahren zum Schneiden von Flachmaterial
DE69513748T2 (de) Verfahren und Vorrichtung zum Speisen von flüssigem Rohmaterialgas
DE69521480D1 (de) Verfahren und Vorrichtung zum Zuführen von Blattmaterial
DE59705301D1 (de) Vorrichtung und verfahren zum verlegen von band- oder streifenförmigem material
DE69633192D1 (de) Verfahren und vorrichtung zur trocknung von pulverisierten material
DE69622467D1 (de) Vorrichtung und Verfahren zum Mischen
DE69704289D1 (de) Verfahren und Vorrichtung zum Mischen mit kontinuierlichen Walzen von thermoplastischem Material
DE59406176D1 (de) Verfahren und Vorrichtung zur Wiederaufbereitung von festem Polyestermaterial
DE59206744D1 (de) Verfahren und Vorrichtung zum kontinuierlichen Kräuseln von thermoplastischen Fäden
DE69711030D1 (de) Verfahren und vorrichtung zum fliesspressen von produkten mit variablem querschnitt
DE69728558D1 (de) Vorrichtung und verfahren zum kontrollierten abgeben von flüssigem material in eine sanitäreinrichtung
DE59801421D1 (de) Verfahren zum Besticken von rohrförmigem Nähgut und Vorrichtung zum Besticken von rohrförmigem Nähgut
DE59609962D1 (de) Verfahren und vorrichtung zum kontinuierlichen kräuseln von thermoplastischen fäden
DE69724158D1 (de) Matrize und verfahren zum stanzen von plastischen material
DE69610967D1 (de) Verfahren und Vorrichtung zur Kennzeichnung von langgestrecktem Material
DE69720048T2 (de) Matrize und verfahren zum stanzen von plastischem material
DE59100309D1 (de) Verfahren und Vorrichtung zum Verbinden von Materialbahnen.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition