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JPS56123849A - Extruding method for thermoplastic resin - Google Patents

Extruding method for thermoplastic resin

Info

Publication number
JPS56123849A
JPS56123849A JP2609280A JP2609280A JPS56123849A JP S56123849 A JPS56123849 A JP S56123849A JP 2609280 A JP2609280 A JP 2609280A JP 2609280 A JP2609280 A JP 2609280A JP S56123849 A JPS56123849 A JP S56123849A
Authority
JP
Japan
Prior art keywords
resins
gear pump
cogs
scattering
phase shift
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.)
Pending
Application number
JP2609280A
Other languages
Japanese (ja)
Inventor
Hiroshi Noda
Hiroshi Aoyanagi
Haruhiko Mizumori
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.)
Teijin Ltd
Original Assignee
Teijin 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 Teijin Ltd filed Critical Teijin Ltd
Priority to JP2609280A priority Critical patent/JPS56123849A/en
Publication of JPS56123849A publication Critical patent/JPS56123849A/en
Pending legal-status Critical Current

Links

Classifications

    • B29C47/92—

Landscapes

  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To produce films with lesser scattering in thickness with the extruded amount of resins stabilized, by maintaning number of gear pump at an identical temperature and maintaining the pulsed phase shift angle of the melted resins pressure by the cogs of each gear pump at 360 deg./n. CONSTITUTION:Melted resins are extruded from an extruding machine 1 and led into a metallic block 3 through a lead tube 2. A fixed amount of resins in the (n) number of gear pumps 4, 4' maintained at the same temperature are re-mergered by driving means 5, 5' and poured to a lead pipe 6. At the time the gear pumps are driven so that the pulsed phase shift angle of the metled resins pressure caused by the cogs of each gear pump may be 360 deg./n. The cogs cause pulses to the melted resin presure on pouring, but because these are driven at a specific phase shift, overlapping of pulses can be prevented, resulting in prevention of scattering in thickness. And because each gear pump is maintained at the same temperature, scattering in thickness to be caused by viscoity difference can also be prevented.
JP2609280A 1980-03-04 1980-03-04 Extruding method for thermoplastic resin Pending JPS56123849A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2609280A JPS56123849A (en) 1980-03-04 1980-03-04 Extruding method for thermoplastic resin

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2609280A JPS56123849A (en) 1980-03-04 1980-03-04 Extruding method for thermoplastic resin

Publications (1)

Publication Number Publication Date
JPS56123849A true JPS56123849A (en) 1981-09-29

Family

ID=12183952

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2609280A Pending JPS56123849A (en) 1980-03-04 1980-03-04 Extruding method for thermoplastic resin

Country Status (1)

Country Link
JP (1) JPS56123849A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008053643A1 (en) * 2006-11-01 2008-05-08 Bridgestone Corporation Gear extruder for rubber
WO2008056488A1 (en) * 2006-11-06 2008-05-15 Bridgestone Corporation Gear extruder for rubber

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008053643A1 (en) * 2006-11-01 2008-05-08 Bridgestone Corporation Gear extruder for rubber
WO2008056488A1 (en) * 2006-11-06 2008-05-15 Bridgestone Corporation Gear extruder for rubber
JPWO2008056488A1 (en) * 2006-11-06 2010-02-25 株式会社ブリヂストン Rubber gear extruder

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