JPH0446723B2 - - Google Patents

Info

Publication number
JPH0446723B2
JPH0446723B2 JP61228315A JP22831586A JPH0446723B2 JP H0446723 B2 JPH0446723 B2 JP H0446723B2 JP 61228315 A JP61228315 A JP 61228315A JP 22831586 A JP22831586 A JP 22831586A JP H0446723 B2 JPH0446723 B2 JP H0446723B2
Authority
JP
Japan
Prior art keywords
parison
length
wall thickness
calculated
core
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 - Lifetime
Application number
JP61228315A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6382707A (ja
Inventor
Takashi Tsujikura
Hiroaki Takanashi
Shigeharu Hagiwara
Hironori Izumi
Hideaki Fukuda
Junichi Ooshita
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.)
Japan Steel Works Ltd
Original Assignee
Japan Steel Works 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 Japan Steel Works Ltd filed Critical Japan Steel Works Ltd
Priority to JP61228315A priority Critical patent/JPS6382707A/ja
Publication of JPS6382707A publication Critical patent/JPS6382707A/ja
Publication of JPH0446723B2 publication Critical patent/JPH0446723B2/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
    • B29C48/92—Measuring, controlling or regulating
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92504—Controlled parameter
    • B29C2948/92609—Dimensions
    • B29C2948/92647—Thickness
    • 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
    • B29C2948/00—Indexing scheme relating to extrusion moulding
    • B29C2948/92—Measuring, controlling or regulating
    • B29C2948/92819—Location or phase of control
    • B29C2948/92857—Extrusion unit
    • B29C2948/92904—Die; Nozzle zone
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
JP61228315A 1986-09-29 1986-09-29 パリソン肉厚制御方法 Granted JPS6382707A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61228315A JPS6382707A (ja) 1986-09-29 1986-09-29 パリソン肉厚制御方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61228315A JPS6382707A (ja) 1986-09-29 1986-09-29 パリソン肉厚制御方法

Publications (2)

Publication Number Publication Date
JPS6382707A JPS6382707A (ja) 1988-04-13
JPH0446723B2 true JPH0446723B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1992-07-30

Family

ID=16874515

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61228315A Granted JPS6382707A (ja) 1986-09-29 1986-09-29 パリソン肉厚制御方法

Country Status (1)

Country Link
JP (1) JPS6382707A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5198161A (en) * 1990-03-07 1993-03-30 Kao Corporation Parison thickness control method
ES2181708T3 (es) * 1993-08-31 2003-03-01 Tokai Kogyo Co Ltd Metodo y aparato para moldeado por extrusion.
JP6429014B2 (ja) * 2014-12-25 2018-11-28 キョーラク株式会社 ブロー成形方法

Also Published As

Publication number Publication date
JPS6382707A (ja) 1988-04-13

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Legal Events

Date Code Title Description
LAPS Cancellation because of no payment of annual fees