DE2350674A1 - Extrudierschraube fuer thermoplasten oder elastomere - Google Patents

Extrudierschraube fuer thermoplasten oder elastomere

Info

Publication number
DE2350674A1
DE2350674A1 DE19732350674 DE2350674A DE2350674A1 DE 2350674 A1 DE2350674 A1 DE 2350674A1 DE 19732350674 DE19732350674 DE 19732350674 DE 2350674 A DE2350674 A DE 2350674A DE 2350674 A1 DE2350674 A1 DE 2350674A1
Authority
DE
Germany
Prior art keywords
zone
thread
section
screw
groove
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.)
Pending
Application number
DE19732350674
Other languages
German (de)
English (en)
Inventor
Anton Portmann
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.)
Maillefer SA
Original Assignee
Maillefer SA
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 Maillefer SA filed Critical Maillefer SA
Publication of DE2350674A1 publication Critical patent/DE2350674A1/de
Pending 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
    • B29C48/76—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
    • B29C48/50—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
    • 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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
DE19732350674 1972-10-09 1973-10-09 Extrudierschraube fuer thermoplasten oder elastomere Pending DE2350674A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1471272A CH558714A (fr) 1972-10-09 1972-10-09 Vis pour extrudeuse de thermoplastes ou d'elastomeres.

Publications (1)

Publication Number Publication Date
DE2350674A1 true DE2350674A1 (de) 1974-04-18

Family

ID=4403213

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732350674 Pending DE2350674A1 (de) 1972-10-09 1973-10-09 Extrudierschraube fuer thermoplasten oder elastomere

Country Status (4)

Country Link
CH (1) CH558714A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE2350674A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
FR (1) FR2201969B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
GB (1) GB1450087A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4733970A (en) * 1985-09-09 1988-03-29 Sterling Extruder Corporation Extruder screw
DE3744553A1 (de) * 1987-12-30 1989-07-13 Toshiba Machine Co Ltd Schnecke zur verwendung bei einer spritzgiessmaschine des entlueftungstyps
US4944906A (en) * 1988-10-11 1990-07-31 Spirex Corporation Methods of injection molding and extruding wet hygroscopic ionomers
US5088914A (en) * 1990-05-11 1992-02-18 Romano Brambilla Double flighted extrusion screw
FR2693400B1 (fr) * 1992-07-10 1994-09-02 Scamia Ensemble de plastification et de filtration en continu pour des matières telles que des polymères à l'état pâteux, visqueux ou fondu, produits visco élastiques, produits protéoléagineux.
AT405262B (de) * 1997-09-03 1999-06-25 Weingartner Maschbau Gmbh Mehrschneckenextruder, insbesondere doppelschneckenextruder
CN107244055B (zh) * 2017-07-21 2023-08-29 四川业峰塑业有限公司 一种螺旋降噪管的生产系统
CN114643691B (zh) * 2022-03-21 2025-06-06 舟山市嘉鼎塑料机械有限公司 带水造料螺杆料筒

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3445890A (en) * 1966-12-08 1969-05-27 Nrm Corp Two-stage extruder
US3650652A (en) * 1970-05-05 1972-03-21 Feed Screws Inc Apparatus for extruding plastic material

Also Published As

Publication number Publication date
GB1450087A (en) 1976-09-22
FR2201969A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1974-05-03
FR2201969B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1976-06-18
CH558714A (fr) 1975-02-14

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Legal Events

Date Code Title Description
OHA Expiration of time for request for examination