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IT1303086B1 - Procedimento e apparecchio per estrudere film poliolefinico tubolare. - Google Patents

Procedimento e apparecchio per estrudere film poliolefinico tubolare.

Info

Publication number
IT1303086B1
IT1303086B1 ITTO980649A IT1303086B1 IT 1303086 B1 IT1303086 B1 IT 1303086B1 IT TO980649 A ITTO980649 A IT TO980649A IT 1303086 B1 IT1303086 B1 IT 1303086B1
Authority
IT
Italy
Prior art keywords
bubble
air
film extrusion
cold air
film
Prior art date
Application number
Other languages
English (en)
Inventor
Angelo Regusci
Original Assignee
Patchville Corp N V
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 Patchville Corp N V filed Critical Patchville Corp N V
Publication of ITTO980649A1 publication Critical patent/ITTO980649A1/it
Application granted granted Critical
Publication of IT1303086B1 publication Critical patent/IT1303086B1/it

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
    • B29C48/89—Internal treatment, e.g. by applying an internal cooling fluid stream
    • 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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
IT98TO000649 1998-03-02 1998-07-28 Procedimento e apparecchio per estrudere film poliolefinico tubolare. IT1303086B1 (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1008448A NL1008448C2 (nl) 1998-03-02 1998-03-02 Werkwijze en inrichting voor het extruderen van een buisvormige polyolefine film.

Publications (2)

Publication Number Publication Date
ITTO980649A1 ITTO980649A1 (it) 2000-01-28
IT1303086B1 true IT1303086B1 (it) 2000-10-30

Family

ID=19766632

Family Applications (1)

Application Number Title Priority Date Filing Date
IT98TO000649 IT1303086B1 (it) 1998-03-02 1998-07-28 Procedimento e apparecchio per estrudere film poliolefinico tubolare.

Country Status (2)

Country Link
IT (1) IT1303086B1 (it)
NL (1) NL1008448C2 (it)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HUP0301174A2 (hu) * 2003-04-30 2005-03-29 Dr-Pack Ii. Kft. Eljárás és berendezés extrudált műanyag fóliatömlők hűtésére

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO119195B (it) * 1965-10-27 1970-04-06 J Thordarson
CH549455A (fr) * 1971-09-28 1974-05-31 Sig Schweiz Industrieges Procede de fabrication d'un film tubulaire en matiere plastique, installation pour la mise en oeuvre de ce procede et film obtenu par ce procede.
JPS58380B2 (ja) * 1977-08-24 1983-01-06 株式会社神戸製鋼所 含油高分子材料の押出成形装置
DE2926262A1 (de) * 1979-06-29 1981-01-15 Demag Kunststofftech Kuehlvorrichtung fuer mittels eines blaskopfes hergestellte kunststoff- schlauchfolien
SU1214455A1 (ru) * 1984-04-25 1986-02-28 Украинский Научно-Исследовательский И Конструкторский Институт По Разработке Машин И Оборудования Для Переработки Пластмасс,Резины И Искусственной Кожи Способ изготовлени равноплотных рукавных пленок и устройство дл его осуществлени

Also Published As

Publication number Publication date
ITTO980649A1 (it) 2000-01-28
NL1008448C2 (nl) 1999-09-03

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Legal Events

Date Code Title Description
0001 Granted