FR2370568A1 - Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre - Google Patents

Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre

Info

Publication number
FR2370568A1
FR2370568A1 FR7633841A FR7633841A FR2370568A1 FR 2370568 A1 FR2370568 A1 FR 2370568A1 FR 7633841 A FR7633841 A FR 7633841A FR 7633841 A FR7633841 A FR 7633841A FR 2370568 A1 FR2370568 A1 FR 2370568A1
Authority
FR
France
Prior art keywords
internal
manifolds
bubble
film surface
balance control
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
FR7633841A
Other languages
English (en)
Other versions
FR2370568B1 (fr
Inventor
Tristan Orillard
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.)
ATO EMBALLAGE
Original Assignee
ATO EMBALLAGE
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 ATO EMBALLAGE filed Critical ATO EMBALLAGE
Priority to FR7633841A priority Critical patent/FR2370568A1/fr
Priority to IT2953177A priority patent/IT1087889B/it
Priority to BE187410A priority patent/BE866726A/fr
Publication of FR2370568A1 publication Critical patent/FR2370568A1/fr
Application granted granted Critical
Publication of FR2370568B1 publication Critical patent/FR2370568B1/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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/913—Cooling of hollow articles of tubular films externally
    • 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
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular 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
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/911—Cooling
    • B29C48/9115—Cooling of hollow articles
    • B29C48/912—Cooling of hollow articles of tubular films
    • B29C48/9125—Cooling of hollow articles of tubular films internally
    • 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

  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Procédé de refroidissement de films tubulaires extrudés et dispositif en vue de sa mise en oeuvre. Le film tubulaire 6 extrudé par la filière 3 de la tête 1 est soutenu intérieurement par un matelas d'air créé par la diffusion d'air amené à l'interieur d'une chambre 12 et diffusé vers le film tubulaire 6 à travers sa paroi poreuse 13. A l'extérieur du film 6 il est prévu un anneau de soufflage 14 dont le débit se divise en un flux tangentiel au film V et un flux horizontal H débité à travers une collerette à débit réglable 18. Cet air soufflé extérieur et/ou intérieur peut être réfrigéré. La chambre 12 peut être en un matériau fritté ou pierre artificielle poreuse. Application : fabrication par extrusion de matériaux en gaine.
FR7633841A 1976-11-10 1976-11-10 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre Granted FR2370568A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR7633841A FR2370568A1 (fr) 1976-11-10 1976-11-10 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre
IT2953177A IT1087889B (it) 1976-11-10 1977-11-10 Procedimento di raffreddamento di pellicole tubolari estruse e dispositivo per la sua messa in opera.
BE187410A BE866726A (fr) 1976-11-10 1978-05-05 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
FR7633841A FR2370568A1 (fr) 1976-11-10 1976-11-10 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre
BE187410A BE866726A (fr) 1976-11-10 1978-05-05 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre
BE866726 1978-05-05

Publications (2)

Publication Number Publication Date
FR2370568A1 true FR2370568A1 (fr) 1978-06-09
FR2370568B1 FR2370568B1 (fr) 1979-03-02

Family

ID=27158656

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7633841A Granted FR2370568A1 (fr) 1976-11-10 1976-11-10 Procede de refroidissement de films tubulaires extrudes et dispositif en vue de sa mise en oeuvre

Country Status (2)

Country Link
BE (1) BE866726A (fr)
FR (1) FR2370568A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434028A1 (fr) * 1978-08-23 1980-03-21 Demag Kunststofftech Tete d'extrusion a soufflage pour realiser un tube a paroi mince
EP0021420A1 (fr) * 1979-06-29 1981-01-07 Mannesmann Demag Kunststofftechnik Zweigniederlassung Der Mannesmann Demag Aktiengesellschaft Dispositif de refroidissement de films tubulaires fabriqués à l'aide d'une tête de soufflage
EP0595037A1 (fr) * 1992-10-28 1994-05-04 Windmöller & Hölscher Dispositif pour le centrage d'un élément tubulaire soufflé à partir d'un film par rapport à la tête de l'extrudeuse

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ZA817888B (en) * 1980-11-26 1982-10-27 Union Carbide Corp Air ring lip extension for blowing film from olefin resins

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
NEANT *

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2434028A1 (fr) * 1978-08-23 1980-03-21 Demag Kunststofftech Tete d'extrusion a soufflage pour realiser un tube a paroi mince
EP0021420A1 (fr) * 1979-06-29 1981-01-07 Mannesmann Demag Kunststofftechnik Zweigniederlassung Der Mannesmann Demag Aktiengesellschaft Dispositif de refroidissement de films tubulaires fabriqués à l'aide d'une tête de soufflage
EP0595037A1 (fr) * 1992-10-28 1994-05-04 Windmöller & Hölscher Dispositif pour le centrage d'un élément tubulaire soufflé à partir d'un film par rapport à la tête de l'extrudeuse

Also Published As

Publication number Publication date
FR2370568B1 (fr) 1979-03-02
BE866726A (fr) 1978-09-01

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Legal Events

Date Code Title Description
CA Change of address
TP Transmission of property
ST Notification of lapse