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AU1419770A - Back-flow barrier for screw extruders - Google Patents

Back-flow barrier for screw extruders

Info

Publication number
AU1419770A
AU1419770A AU14197/70A AU1419770A AU1419770A AU 1419770 A AU1419770 A AU 1419770A AU 14197/70 A AU14197/70 A AU 14197/70A AU 1419770 A AU1419770 A AU 1419770A AU 1419770 A AU1419770 A AU 1419770A
Authority
AU
Australia
Prior art keywords
screw extruders
flow barrier
barrier
flow
extruders
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
Application number
AU14197/70A
Inventor
Uriel Klaus-Dietrich
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.)
R H Windsor Ltd Frankfurt/m Gm B H
Original Assignee
R H Windsor Ltd Frankfurt M G
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 R H Windsor Ltd Frankfurt M G filed Critical R H Windsor Ltd Frankfurt M G
Publication of AU1419770A publication Critical patent/AU1419770A/en
Expired 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/47—Means for plasticising or homogenising the moulding material or forcing it into the mould using screws
    • B29C45/50—Axially movable screw
    • B29C45/52—Non-return devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
AU14197/70A 1969-04-25 1970-04-22 Back-flow barrier for screw extruders Expired AU1419770A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEDE8192105 1969-04-25
DE19691921058 DE1921058A1 (en) 1969-04-25 1969-04-25 Anti feed-back ring for injection moulder - extruder screw

Publications (1)

Publication Number Publication Date
AU1419770A true AU1419770A (en) 1971-10-28

Family

ID=5732291

Family Applications (1)

Application Number Title Priority Date Filing Date
AU14197/70A Expired AU1419770A (en) 1969-04-25 1970-04-22 Back-flow barrier for screw extruders

Country Status (2)

Country Link
AU (1) AU1419770A (en)
DE (1) DE1921058A1 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0027616B1 (en) * 1979-10-19 1983-06-22 Mannesmann Demag Kunststofftechnik Zweigniederlassung Der Mannesmann Demag Aktiengesellschaft Backflow barrier at the screw head of screw injection moulding machines
DE3019974C2 (en) * 1980-05-24 1985-10-03 Mannesmann Demag Kunststofftechnik Zweigniederlassung der Mannesmann Demag AG, 8500 Nürnberg Non-return valve for screw injection molding machines
CH670065A5 (en) * 1986-05-13 1989-05-12 Netstal Ag Maschf Giesserei
JP3076099B2 (en) * 1991-09-03 2000-08-14 住友重機械プラスチックマシナリー株式会社 Screw head structure

Also Published As

Publication number Publication date
DE1921058A1 (en) 1970-11-05

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