FR2374154A1 - COOLING OF TUBULAR EXTRUDED MANUFACTURED PRODUCTS - Google Patents

COOLING OF TUBULAR EXTRUDED MANUFACTURED PRODUCTS

Info

Publication number
FR2374154A1
FR2374154A1 FR7737326A FR7737326A FR2374154A1 FR 2374154 A1 FR2374154 A1 FR 2374154A1 FR 7737326 A FR7737326 A FR 7737326A FR 7737326 A FR7737326 A FR 7737326A FR 2374154 A1 FR2374154 A1 FR 2374154A1
Authority
FR
France
Prior art keywords
cooling
tube
manufactured products
tubular extruded
heat transfer
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.)
Withdrawn
Application number
FR7737326A
Other languages
French (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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2374154A1 publication Critical patent/FR2374154A1/en
Withdrawn legal-status Critical Current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
    • 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
    • B29C48/91—Heating, e.g. for cross linking
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending

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)

Abstract

L'invention concerne l'industrie des matières plastiques. Elle a pour objet le refroidissement d'un tube extrudé 1 par défilement de ce tube en relation de transfert de chaleur avec une surface de refroidissement adjacente, par exemple un mandrin 4, et par entretien entre le tube et la surface d'une gaine continue d'un liquide visqueux de transfert de chaleur, qui est de préférence un milieu aqueux. Le procédé est particulièrement préféré pour le refroidissement de tubes de matière plastique extrudee dont de la pellicule ayant de bonnes propriétés optiques peut être produite suivant le procédé dit de la bulle.The invention relates to the plastics industry. Its object is the cooling of an extruded tube 1 by running this tube in heat transfer relation with an adjacent cooling surface, for example a mandrel 4, and by maintenance between the tube and the surface of a continuous sheath a viscous heat transfer liquid, which is preferably an aqueous medium. The method is particularly preferred for the cooling of tubes of extruded plastic material from which a film having good optical properties can be produced according to the so-called bubble method.

FR7737326A 1976-12-14 1977-12-12 COOLING OF TUBULAR EXTRUDED MANUFACTURED PRODUCTS Withdrawn FR2374154A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB52078/76A GB1560550A (en) 1976-12-14 1976-12-14 Cooling tubular extrudates

Publications (1)

Publication Number Publication Date
FR2374154A1 true FR2374154A1 (en) 1978-07-13

Family

ID=10462551

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7737326A Withdrawn FR2374154A1 (en) 1976-12-14 1977-12-12 COOLING OF TUBULAR EXTRUDED MANUFACTURED PRODUCTS

Country Status (6)

Country Link
US (1) UST984006I4 (en)
AU (1) AU505932B2 (en)
BE (1) BE861856A (en)
DE (1) DE2755519A1 (en)
FR (1) FR2374154A1 (en)
GB (1) GB1560550A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6824734B2 (en) 2001-10-09 2004-11-30 Kimberly-Clark Worldwide, Inc. Method of producing latent elastic, cross-direction-oriented films

Also Published As

Publication number Publication date
AU3084677A (en) 1979-05-31
AU505932B2 (en) 1979-12-06
UST984006I4 (en) 1979-07-03
DE2755519A1 (en) 1978-06-15
BE861856A (en) 1978-06-14
GB1560550A (en) 1980-02-06

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Legal Events

Date Code Title Description
ST Notification of lapse