JPS5553527A - Method of reducing shrinking percentage of heat shrinking synthetic resin tube - Google Patents

Method of reducing shrinking percentage of heat shrinking synthetic resin tube

Info

Publication number
JPS5553527A
JPS5553527A JP12760778A JP12760778A JPS5553527A JP S5553527 A JPS5553527 A JP S5553527A JP 12760778 A JP12760778 A JP 12760778A JP 12760778 A JP12760778 A JP 12760778A JP S5553527 A JPS5553527 A JP S5553527A
Authority
JP
Japan
Prior art keywords
tube
rolls
synthetic resin
delivery
shrinking
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.)
Granted
Application number
JP12760778A
Other languages
Japanese (ja)
Other versions
JPS6146301B2 (en
Inventor
Takaaki Yamaguchi
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 Plastics Inc
Original Assignee
Mitsubishi Plastics Inc
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 Plastics Inc filed Critical Mitsubishi Plastics Inc
Priority to JP12760778A priority Critical patent/JPS5553527A/en
Publication of JPS5553527A publication Critical patent/JPS5553527A/en
Publication of JPS6146301B2 publication Critical patent/JPS6146301B2/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
    • B29C61/00—Shaping by liberation of internal stresses; Making preforms having internal stresses; Apparatus therefor
    • B29C61/02—Thermal shrinking
    • B29C61/025—Thermal shrinking for the production of hollow or tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:In introducing an inner diameter regulating body into a resinous tube and heating or cooling the tube while causing the tube to travel, to reduce the tube taking up speed less than the tube delivery speed thereby to freely shrink the tube in the vertical direction to remove the vertical residual shrinking percentage. CONSTITUTION:An inner diameter regulating body 6 is introduced into the inner part of a heat shrinking synthetic resin tube 8 by directing its conical end 6' in the direcrion of delivery rolls 1 and 1'. Then, the regulator 6 is retained between the delivery rolls 1, 1' and support rolls 2, 2' to continuously deliver the tube 8. Simultaneously, fluids are emitted from a heating fluid discharge nozzle 11 and a cooling fluid discharge nozzle 12 are discharged from the outer part of the regulatar 6, and the tube is heated and shrunk, and thereafter rapidly cooled. The tube is then taken up by retarding the speed of the taking up rolls 7 and 7' less than that of the delivery rolls 1 and 1'.
JP12760778A 1978-10-16 1978-10-16 Method of reducing shrinking percentage of heat shrinking synthetic resin tube Granted JPS5553527A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12760778A JPS5553527A (en) 1978-10-16 1978-10-16 Method of reducing shrinking percentage of heat shrinking synthetic resin tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12760778A JPS5553527A (en) 1978-10-16 1978-10-16 Method of reducing shrinking percentage of heat shrinking synthetic resin tube

Publications (2)

Publication Number Publication Date
JPS5553527A true JPS5553527A (en) 1980-04-19
JPS6146301B2 JPS6146301B2 (en) 1986-10-13

Family

ID=14964265

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12760778A Granted JPS5553527A (en) 1978-10-16 1978-10-16 Method of reducing shrinking percentage of heat shrinking synthetic resin tube

Country Status (1)

Country Link
JP (1) JPS5553527A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63153117A (en) * 1986-09-17 1988-06-25 ダブリュー・アール・グレイス・アンド・カンパニー―コネチカット Heat-shrinkable tubular film material
JPS63257623A (en) * 1987-04-15 1988-10-25 Mitsubishi Plastics Ind Ltd Heat-shrinkable tube and manufacture thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63153117A (en) * 1986-09-17 1988-06-25 ダブリュー・アール・グレイス・アンド・カンパニー―コネチカット Heat-shrinkable tubular film material
JPS63257623A (en) * 1987-04-15 1988-10-25 Mitsubishi Plastics Ind Ltd Heat-shrinkable tube and manufacture thereof

Also Published As

Publication number Publication date
JPS6146301B2 (en) 1986-10-13

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