FR2186334B1 - - Google Patents

Info

Publication number
FR2186334B1
FR2186334B1 FR7307212A FR7307212A FR2186334B1 FR 2186334 B1 FR2186334 B1 FR 2186334B1 FR 7307212 A FR7307212 A FR 7307212A FR 7307212 A FR7307212 A FR 7307212A FR 2186334 B1 FR2186334 B1 FR 2186334B1
Authority
FR
France
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
FR7307212A
Other languages
French (fr)
Other versions
FR2186334A1 (en
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of FR2186334A1 publication Critical patent/FR2186334A1/fr
Application granted granted Critical
Publication of FR2186334B1 publication Critical patent/FR2186334B1/fr
Granted 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
    • B29C48/375—Plasticisers, homogenisers or feeders comprising two or more stages
    • B29C48/38—Plasticisers, homogenisers or feeders comprising two or more stages using two or more serially arranged screws in the same barrel
    • 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
    • B29C48/252—Drive or actuation means; Transmission means; Screw supporting 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
    • B29C48/25—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
    • B29C48/455—Screws arranged to convey material towards each other, e.g. separate screws arranged after each other and feeding in opposite directions
    • 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)
  • Mixers Of The Rotary Stirring Type (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
FR7307212A 1972-06-01 1973-02-28 Plastics kneading - in barrel with two screws both feeding material towards axial centre of barrel Granted FR2186334A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47053844A JPS4910454A (enrdf_load_stackoverflow) 1972-06-01 1972-06-01

Publications (2)

Publication Number Publication Date
FR2186334A1 FR2186334A1 (en) 1974-01-11
FR2186334B1 true FR2186334B1 (enrdf_load_stackoverflow) 1976-11-05

Family

ID=12954073

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7307212A Granted FR2186334A1 (en) 1972-06-01 1973-02-28 Plastics kneading - in barrel with two screws both feeding material towards axial centre of barrel

Country Status (4)

Country Link
JP (1) JPS4910454A (enrdf_load_stackoverflow)
DE (1) DE2312401A1 (enrdf_load_stackoverflow)
FR (1) FR2186334A1 (enrdf_load_stackoverflow)
IT (1) IT983499B (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1117750B (it) * 1977-08-05 1986-02-17 Bersano Terenzio Estrusore bivite/bistadio e pluristadio a doppia alimentazione
FR2582982B1 (fr) * 1985-06-05 1987-12-04 Mcneil Akron Repiquet Sarl Machine d'extrusion comportant deux fourreaux superposes
CZ20031256A3 (cs) * 2000-12-20 2003-10-15 Kreyenborg Verwaltungen Und Beteiligungen Gmbh & C Výtlačné zařízení pro recyklaci plastů
EP2539123A1 (en) * 2010-02-22 2013-01-02 Ineos Commercial Services UK Limited Improved polyolefin manufacturing process

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB672668A (en) * 1948-04-22 1952-05-28 Dow Chemical Co Improvements in machines for processing and extruding plastic materials
DE1111599B (de) * 1958-06-04 1961-07-27 Krauss Maffei Ag Misch- und Knetvorrichtung mit diskontinuierlicher Arbeitsweise fuer plastische Massen
US3667733A (en) * 1970-01-28 1972-06-06 Rudolf Paul Fritsch Device for the plastication of powdery plastic materials

Also Published As

Publication number Publication date
FR2186334A1 (en) 1974-01-11
IT983499B (it) 1974-10-31
DE2312401A1 (de) 1973-12-20
JPS4910454A (enrdf_load_stackoverflow) 1974-01-29

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Legal Events

Date Code Title Description
ST Notification of lapse