JPS6227983B2 - - Google Patents

Info

Publication number
JPS6227983B2
JPS6227983B2 JP54094872A JP9487279A JPS6227983B2 JP S6227983 B2 JPS6227983 B2 JP S6227983B2 JP 54094872 A JP54094872 A JP 54094872A JP 9487279 A JP9487279 A JP 9487279A JP S6227983 B2 JPS6227983 B2 JP S6227983B2
Authority
JP
Japan
Prior art keywords
outer ring
bubble
ring
cooling air
tapered
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
JP54094872A
Other languages
English (en)
Japanese (ja)
Other versions
JPS5619727A (en
Inventor
Keijiro Sekiguchi
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.)
PURAKOO KK
Original Assignee
PURAKOO KK
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 PURAKOO KK filed Critical PURAKOO KK
Priority to JP9487279A priority Critical patent/JPS5619727A/ja
Publication of JPS5619727A publication Critical patent/JPS5619727A/ja
Publication of JPS6227983B2 publication Critical patent/JPS6227983B2/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
    • B29C48/885—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)
JP9487279A 1979-07-27 1979-07-27 Method and device for forming plastic film Granted JPS5619727A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9487279A JPS5619727A (en) 1979-07-27 1979-07-27 Method and device for forming plastic film

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9487279A JPS5619727A (en) 1979-07-27 1979-07-27 Method and device for forming plastic film

Publications (2)

Publication Number Publication Date
JPS5619727A JPS5619727A (en) 1981-02-24
JPS6227983B2 true JPS6227983B2 (enrdf_load_stackoverflow) 1987-06-17

Family

ID=14122134

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9487279A Granted JPS5619727A (en) 1979-07-27 1979-07-27 Method and device for forming plastic film

Country Status (1)

Country Link
JP (1) JPS5619727A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5915518U (ja) * 1982-07-21 1984-01-30 日本ユニカ−株式会社 インフレ−シヨンフイルム用冷却装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5837138B2 (ja) * 1975-06-20 1983-08-13 三菱化学株式会社 インフレ−シヨンフイルムノセイケイソウチ
JPS53137261A (en) * 1977-05-06 1978-11-30 Japan Steel Works Ltd Air ring in installation for making inflation film from thermoplastic resin

Also Published As

Publication number Publication date
JPS5619727A (en) 1981-02-24

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