FR2369922A1 - Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification - Google Patents

Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification

Info

Publication number
FR2369922A1
FR2369922A1 FR7633571A FR7633571A FR2369922A1 FR 2369922 A1 FR2369922 A1 FR 2369922A1 FR 7633571 A FR7633571 A FR 7633571A FR 7633571 A FR7633571 A FR 7633571A FR 2369922 A1 FR2369922 A1 FR 2369922A1
Authority
FR
France
Prior art keywords
torpedo
passage
thermostated
extrudates
melt
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.)
Granted
Application number
FR7633571A
Other languages
English (en)
Other versions
FR2369922B1 (fr
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.)
Solvay SA
Original Assignee
Solvay 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 Solvay SA filed Critical Solvay SA
Priority to FR7633571A priority Critical patent/FR2369922A1/fr
Priority to BE1008476A priority patent/BE860233A/fr
Publication of FR2369922A1 publication Critical patent/FR2369922A1/fr
Application granted granted Critical
Publication of FR2369922B1 publication Critical patent/FR2369922B1/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
    • 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
    • B29C45/58—Details
    • B29C45/581—Devices for influencing the material flow, e.g. "torpedo constructions" or mixing devices
    • 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
    • B29C48/362—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die using static mixing devices
    • 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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

a. Procédé et dispositif pour réduire la section d'un flux de matière thermoplastique débitée par une installation de plastification équipée d'un dispositif de filtration en vue de son introduction dans le canal d'entrée d'un dispositif de mise en forme dans lesquels on recourt à une canalisation de section décroissante ; b. Le canal de section décroissante 6 comporte une torpille 8 d'homogénéisation déviant vers la paroi le flux de matière thermoplastique sortant du filtre 3; c. L'invention peut être utilisée pour l'extrusion de matériaux thermoplastiques thermosensibles telles que les résines à base de polychlorure de vinyle.
FR7633571A 1976-11-03 1976-11-03 Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification Granted FR2369922A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
FR7633571A FR2369922A1 (fr) 1976-11-03 1976-11-03 Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification
BE1008476A BE860233A (fr) 1976-11-03 1977-10-28 Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7633571A FR2369922A1 (fr) 1976-11-03 1976-11-03 Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification

Publications (2)

Publication Number Publication Date
FR2369922A1 true FR2369922A1 (fr) 1978-06-02
FR2369922B1 FR2369922B1 (fr) 1979-02-23

Family

ID=9179630

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633571A Granted FR2369922A1 (fr) 1976-11-03 1976-11-03 Procede et dispositif pour reduire la section d'un flux de matiere thermoplastique chaude debitee par une installation de plastification

Country Status (2)

Country Link
BE (1) BE860233A (fr)
FR (1) FR2369922A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293327A3 (fr) * 2001-09-17 2003-11-19 Technoplast Kunststofftechnik Gesellschaft m.b.H. Adaptateur pour extrudeuse produisant des profiles en plastique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631204C (de) * 1936-06-15 Siemens Schuckertwerke Akt Ges Vorrichtung zum Herstellen von Baendern und Faeden aus Polymerisationsprodukten
FR1101267A (fr) * 1954-03-18 1955-10-04 Dispositif d'étirage de matières thermoplastiques et de matières visqueuses en général, applicable aux filières, boudineuses et appareils analogues
FR1319442A (fr) * 1962-01-19 1963-03-01 Dispositif homogénéiseur de matières thermoplastiques pour boudineuses, filièreset machines analogues
US3922128A (en) * 1968-07-26 1975-11-25 Solo Products Corp Apparatus for extruding a continuous coating about a strand

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE631204C (de) * 1936-06-15 Siemens Schuckertwerke Akt Ges Vorrichtung zum Herstellen von Baendern und Faeden aus Polymerisationsprodukten
FR1101267A (fr) * 1954-03-18 1955-10-04 Dispositif d'étirage de matières thermoplastiques et de matières visqueuses en général, applicable aux filières, boudineuses et appareils analogues
FR1319442A (fr) * 1962-01-19 1963-03-01 Dispositif homogénéiseur de matières thermoplastiques pour boudineuses, filièreset machines analogues
US3922128A (en) * 1968-07-26 1975-11-25 Solo Products Corp Apparatus for extruding a continuous coating about a strand

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1293327A3 (fr) * 2001-09-17 2003-11-19 Technoplast Kunststofftechnik Gesellschaft m.b.H. Adaptateur pour extrudeuse produisant des profiles en plastique

Also Published As

Publication number Publication date
BE860233A (fr) 1978-04-28
FR2369922B1 (fr) 1979-02-23

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse