IT1228067B - Procedimento e dispositivo per il mantenimento di un processo di degassificazione a ritroso in un estrusore monococlea. - Google Patents

Procedimento e dispositivo per il mantenimento di un processo di degassificazione a ritroso in un estrusore monococlea.

Info

Publication number
IT1228067B
IT1228067B IT8919237A IT1923789A IT1228067B IT 1228067 B IT1228067 B IT 1228067B IT 8919237 A IT8919237 A IT 8919237A IT 1923789 A IT1923789 A IT 1923789A IT 1228067 B IT1228067 B IT 1228067B
Authority
IT
Italy
Prior art keywords
retrose
maintenance
procedure
screw extruder
single screw
Prior art date
Application number
IT8919237A
Other languages
English (en)
Other versions
IT8919237A0 (it
Inventor
Hans Wobbe
Original Assignee
Berstorff Gmbh Masch Hermann
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 Berstorff Gmbh Masch Hermann filed Critical Berstorff Gmbh Masch Hermann
Publication of IT8919237A0 publication Critical patent/IT8919237A0/it
Application granted granted Critical
Publication of IT1228067B publication Critical patent/IT1228067B/it

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
    • B29C48/76—Venting, drying means; Degassing means
    • B29C48/765—Venting, drying means; Degassing means in the extruder apparatus
    • B29C48/766—Venting, drying means; Degassing means in the extruder apparatus in 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
    • 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
    • B29C48/397—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 a single screw
    • 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
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • 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
    • B29C48/685—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads
    • B29C48/687—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having projections with a short length in the barrel direction, e.g. pins
    • 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
    • B29C48/76—Venting, drying means; Degassing means
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
IT8919237A 1988-02-24 1989-01-27 Procedimento e dispositivo per il mantenimento di un processo di degassificazione a ritroso in un estrusore monococlea. IT1228067B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3805748A DE3805748A1 (de) 1988-02-24 1988-02-24 Verfahren und einrichtung zur aufrechterhaltung eines rueckwaertsentgasungsvorganges an einem einschneckenextruder

Publications (2)

Publication Number Publication Date
IT8919237A0 IT8919237A0 (it) 1989-01-27
IT1228067B true IT1228067B (it) 1991-05-28

Family

ID=6348053

Family Applications (1)

Application Number Title Priority Date Filing Date
IT8919237A IT1228067B (it) 1988-02-24 1989-01-27 Procedimento e dispositivo per il mantenimento di un processo di degassificazione a ritroso in un estrusore monococlea.

Country Status (5)

Country Link
US (1) US4900494A (it)
JP (1) JPH01262117A (it)
DE (1) DE3805748A1 (it)
GB (1) GB2217647B (it)
IT (1) IT1228067B (it)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3840293A1 (de) * 1988-11-30 1990-05-31 Werner & Pfleiderer Verfahren zum entfernen von verunreinigungen aus polymeren kunststoffen und vorrichtung zur durchfuehrung des verfahrens
EP0474705B1 (en) * 1989-06-01 1995-08-16 Starch Australasia Limited Starch derived shaped articles
DE4010540C1 (it) * 1990-04-02 1991-11-07 Wilfried Dipl.-Ing. 3017 Pattensen De Baumgarten
US5088914A (en) * 1990-05-11 1992-02-18 Romano Brambilla Double flighted extrusion screw
DE4017724C1 (it) * 1990-06-01 1991-03-07 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover, De
DE4039942C1 (it) * 1990-12-14 1992-01-30 Berstorff Gmbh Masch Hermann
US5637268A (en) * 1994-05-06 1997-06-10 Texas A & M University System Method of extruding plastics
US6129873A (en) * 1998-04-08 2000-10-10 Eastman Chemical Company Process for removing moisture and volatiles from pellets in single screw extruders
US6280667B1 (en) 1999-04-19 2001-08-28 Andersen Corporation Process for making thermoplastic-biofiber composite materials and articles including a poly(vinylchloride) component
JP3886467B2 (ja) * 2003-04-10 2007-02-28 株式会社日本製鋼所 スクリュ式混練押出機
AT507971B1 (de) * 2009-02-03 2010-11-15 Starlinger & Co Gmbh Kunststoff-extruder
DE102014002209B4 (de) * 2013-10-11 2016-11-24 Blach Verwaltungs Gmbh & Co. Kg Vorrichtung zur Seitenstrombeschickung eines Extruders
CA3031013C (en) * 2016-07-27 2020-03-24 Fpinnovations Vacuum-assisted co-extrusion of flexible fibres and the moldable thermoplastic composites produced

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1930540U (de) * 1965-05-28 1966-01-05 Barmag Barmer Maschf Schneckenpresse zur verarbeitung thermoplastischer, insbesondere bereits vorplastifizierter bzw. frisch erschmolzener kunststoffe.
US3376603A (en) * 1966-05-20 1968-04-09 Lavorazione Mat Plast Apparatus for manufacturing synthetic textile fibers
US3719350A (en) * 1971-03-22 1973-03-06 Baker Perkins Inc Self-cleaning venting section for continuous mixers
US3811658A (en) * 1972-01-24 1974-05-21 H Heidrich Extruder for processing plastics and rubber
DE2203759B1 (de) * 1972-01-24 1973-08-16 Mannesmann Meer AG, 4050 Monchenglad bach Entgasungseinrichtung fuer eine schneckenstrangpresse zur verarbeitung von kunststoffen und gummi
SU591166A1 (ru) * 1975-12-19 1978-02-05 Всесоюзный Научно-Исследовательский Институт Мясной Промышленности Устройство дл вакуумировани фарша
SU592605A2 (ru) * 1976-05-24 1978-02-15 Ленинградский Ордена Трудового Красного Знамени Технологический Институт Им.Ленсовета Приспособление к вальцам дл интенсификации процесса перемешивани полимерных материалов
US4117548A (en) * 1977-11-30 1978-09-26 The French Oil Mill Machinery Company Screw vent
DE2800632C3 (de) * 1978-01-07 1981-02-19 Hermann Berstorff Maschinenbau Gmbh, 3000 Hannover Schneckenstrangpresse für thermoplastische Kunststoffe
CA1141795A (en) * 1978-12-01 1983-02-22 Peter Hold Seals for rotary processor
DE3150719C2 (de) * 1981-12-22 1987-04-02 Uniroyal Englebert Reifen GmbH, 5100 Aachen Schneckenextruder
EP0102400B1 (de) * 1982-08-26 1987-01-14 HERMANN BERSTORFF Maschinenbau GmbH Entgasungsextruder
JPS59118438A (ja) * 1982-12-24 1984-07-09 Sekisui Chem Co Ltd 熱可塑性樹脂の押出し装置
JPS59120435A (ja) * 1982-12-28 1984-07-12 Toshiba Mach Co Ltd 押出成形方法および装置

Also Published As

Publication number Publication date
DE3805748C2 (it) 1989-11-30
DE3805748A1 (de) 1989-09-07
JPH01262117A (ja) 1989-10-19
GB2217647B (en) 1991-05-01
US4900494A (en) 1990-02-13
GB2217647A (en) 1989-11-01
GB8902606D0 (en) 1989-03-22
IT8919237A0 (it) 1989-01-27

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