JPS6248568B2 - - Google Patents

Info

Publication number
JPS6248568B2
JPS6248568B2 JP54011366A JP1136679A JPS6248568B2 JP S6248568 B2 JPS6248568 B2 JP S6248568B2 JP 54011366 A JP54011366 A JP 54011366A JP 1136679 A JP1136679 A JP 1136679A JP S6248568 B2 JPS6248568 B2 JP S6248568B2
Authority
JP
Japan
Prior art keywords
stretching
mandrel
tubular film
film
temperature 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.)
Expired
Application number
JP54011366A
Other languages
English (en)
Japanese (ja)
Other versions
JPS55103930A (en
Inventor
Katsumi Okuyama
Hiroyasu Mizutani
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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Petrochemical Co 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 Mitsubishi Petrochemical Co Ltd filed Critical Mitsubishi Petrochemical Co Ltd
Priority to JP1136679A priority Critical patent/JPS55103930A/ja
Publication of JPS55103930A publication Critical patent/JPS55103930A/ja
Publication of JPS6248568B2 publication Critical patent/JPS6248568B2/ja
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
    • B29C48/90—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article
    • B29C48/901—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies
    • B29C48/902—Thermal treatment of the stream of extruded material, e.g. cooling with calibration or sizing, i.e. combined with fixing or setting of the final dimensions of the extruded article of hollow bodies 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
    • 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)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
JP1136679A 1979-02-05 1979-02-05 Manufacturing device of oriented tubular thermoplastic resin film Granted JPS55103930A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1136679A JPS55103930A (en) 1979-02-05 1979-02-05 Manufacturing device of oriented tubular thermoplastic resin film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1136679A JPS55103930A (en) 1979-02-05 1979-02-05 Manufacturing device of oriented tubular thermoplastic resin film

Publications (2)

Publication Number Publication Date
JPS55103930A JPS55103930A (en) 1980-08-08
JPS6248568B2 true JPS6248568B2 (enrdf_load_stackoverflow) 1987-10-14

Family

ID=11776017

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1136679A Granted JPS55103930A (en) 1979-02-05 1979-02-05 Manufacturing device of oriented tubular thermoplastic resin film

Country Status (1)

Country Link
JP (1) JPS55103930A (enrdf_load_stackoverflow)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5025670A (enrdf_load_stackoverflow) * 1973-07-06 1975-03-18

Also Published As

Publication number Publication date
JPS55103930A (en) 1980-08-08

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