JPS4939661A - - Google Patents

Info

Publication number
JPS4939661A
JPS4939661A JP47082891A JP8289172A JPS4939661A JP S4939661 A JPS4939661 A JP S4939661A JP 47082891 A JP47082891 A JP 47082891A JP 8289172 A JP8289172 A JP 8289172A JP S4939661 A JPS4939661 A JP S4939661A
Authority
JP
Japan
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.)
Pending
Application number
JP47082891A
Other languages
Japanese (ja)
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 filed Critical
Priority to JP47082891A priority Critical patent/JPS4939661A/ja
Publication of JPS4939661A publication Critical patent/JPS4939661A/ja
Pending 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
    • B29C48/885—External treatment, e.g. by using air rings for cooling 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
    • B29C48/911—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)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
JP47082891A 1972-08-21 1972-08-21 Pending JPS4939661A (enrdf_load_stackoverflow)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP47082891A JPS4939661A (enrdf_load_stackoverflow) 1972-08-21 1972-08-21

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP47082891A JPS4939661A (enrdf_load_stackoverflow) 1972-08-21 1972-08-21

Publications (1)

Publication Number Publication Date
JPS4939661A true JPS4939661A (enrdf_load_stackoverflow) 1974-04-13

Family

ID=13786883

Family Applications (1)

Application Number Title Priority Date Filing Date
JP47082891A Pending JPS4939661A (enrdf_load_stackoverflow) 1972-08-21 1972-08-21

Country Status (1)

Country Link
JP (1) JPS4939661A (enrdf_load_stackoverflow)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6073833A (ja) * 1983-03-31 1985-04-26 ウインドメ−レル　ウント　ヘルシエル 管状プラスチツクフイルムを空冷するための冷却装置
JPS60228125A (ja) * 1976-12-06 1985-11-13 Idemitsu Petrochem Co Ltd インフレ−シヨンフイルム製造用エアリング

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60228125A (ja) * 1976-12-06 1985-11-13 Idemitsu Petrochem Co Ltd インフレ−シヨンフイルム製造用エアリング
JPS6073833A (ja) * 1983-03-31 1985-04-26 ウインドメ−レル　ウント　ヘルシエル 管状プラスチツクフイルムを空冷するための冷却装置

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