FR2234124A1 - - Google Patents

Info

Publication number
FR2234124A1
FR2234124A1 FR7418868A FR7418868A FR2234124A1 FR 2234124 A1 FR2234124 A1 FR 2234124A1 FR 7418868 A FR7418868 A FR 7418868A FR 7418868 A FR7418868 A FR 7418868A FR 2234124 A1 FR2234124 A1 FR 2234124A1
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.)
Granted
Application number
FR7418868A
Other languages
French (fr)
Other versions
FR2234124B1 (it
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.)
SOFISA
Original Assignee
SOFISA
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 SOFISA filed Critical SOFISA
Publication of FR2234124A1 publication Critical patent/FR2234124A1/fr
Application granted granted Critical
Publication of FR2234124B1 publication Critical patent/FR2234124B1/fr
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
    • 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
    • B29C48/686—Barrels or cylinders characterised by their inner surfaces, e.g. having grooves, projections or threads having grooves or cavities
    • 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
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/56—Screws having grooves or cavities other than the thread or the channel
    • 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)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR7418868A 1973-06-22 1974-05-30 Expired FR2234124B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH910573A CH551853A (de) 1973-06-22 1973-06-22 Schneckenpresse.

Publications (2)

Publication Number Publication Date
FR2234124A1 true FR2234124A1 (it) 1975-01-17
FR2234124B1 FR2234124B1 (it) 1977-09-30

Family

ID=4348371

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7418868A Expired FR2234124B1 (it) 1973-06-22 1974-05-30

Country Status (9)

Country Link
JP (1) JPS50135166A (it)
AT (1) AT339582B (it)
CH (1) CH551853A (it)
DE (1) DE2418107A1 (it)
FR (1) FR2234124B1 (it)
GB (1) GB1428058A (it)
IT (1) IT1018599B (it)
NL (1) NL7407293A (it)
SE (1) SE405336B (it)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS567459Y2 (it) * 1976-09-14 1981-02-18
DE2934297A1 (de) * 1979-08-24 1981-03-26 Eberhard Dipl.-Ing. 7000 Stuttgart Grünschloß Mehrgaengige extruderschnecke
JPS56129582U (it) * 1980-03-03 1981-10-01
CH649738A5 (fr) * 1982-12-21 1985-06-14 Maillefer Sa Extrudeuse a vis pour matieres plastiques.
JPS61227003A (ja) * 1985-04-01 1986-10-09 Toshiba Mach Co Ltd サブフライトを備えたプラスチツク成形用スクリユ
JPS63176606U (it) * 1987-05-06 1988-11-16
JP7034422B2 (ja) * 2018-02-13 2022-03-14 株式会社日本製鋼所 ２軸押出機、減速機及び押出方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639464A (en) * 1950-01-03 1953-05-26 Nat Rubber Machinery Co Extrusion apparatus

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2639464A (en) * 1950-01-03 1953-05-26 Nat Rubber Machinery Co Extrusion apparatus

Also Published As

Publication number Publication date
SE7406418L (it) 1974-12-23
JPS50135166A (it) 1975-10-27
DE2418107A1 (de) 1975-01-23
IT1018599B (it) 1977-10-20
CH551853A (de) 1974-07-31
AT339582B (de) 1977-10-25
GB1428058A (en) 1976-03-17
NL7407293A (it) 1974-12-24
SE405336B (sv) 1978-12-04
FR2234124B1 (it) 1977-09-30
ATA354574A (de) 1977-02-15

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Legal Events

Date Code Title Description
ST Notification of lapse