JPS5445381A - Manufacture of heat-shrinkable tube - Google Patents

Manufacture of heat-shrinkable tube

Info

Publication number
JPS5445381A
JPS5445381A JP11152177A JP11152177A JPS5445381A JP S5445381 A JPS5445381 A JP S5445381A JP 11152177 A JP11152177 A JP 11152177A JP 11152177 A JP11152177 A JP 11152177A JP S5445381 A JPS5445381 A JP S5445381A
Authority
JP
Japan
Prior art keywords
heat
mold
cylindrical
shrinkable tube
hydraulic pressure
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
JP11152177A
Other languages
Japanese (ja)
Inventor
Hiroshi Nishimura
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.)
Furukawa Electric Co Ltd
Original Assignee
Furukawa Electric 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 Furukawa Electric Co Ltd filed Critical Furukawa Electric Co Ltd
Priority to JP11152177A priority Critical patent/JPS5445381A/en
Publication of JPS5445381A publication Critical patent/JPS5445381A/en
Pending 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
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes
    • 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
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To manufacture a heat-shrinkable tube with a little shrinkage in the long direction, by extruding a cylindrical mold around a continuous cylindrical material made of a thermal-recovery material, by expanding the heated material with a hydraulic pressure applied to the interior of the material, and by cooling and solidifying. CONSTITUTION:The continuous cylindrical material 1, which is made of a thermal- recovery material, with one end closed is fed from the supply device 2, to the cylindrical molding device 6 via the guide rolls 3, 4, and 5. The cylindrical mode 7 having the inside diameter larger than the outside diameter of the material 1 is extruded continuously around the material 1 almost coaxially to heat and expand the material 1 to the inside wall of the mold 7 by the hydraulic pressure using a compressor at the other end. The material 1 and the mold 7 under the hydraulic pressure are fed to the water tank 14 via the guide rolls 12 and 13, cooled and solidified. The mold is cut continuously along the length from the side and removed, thus out the heat- shrinkable tube 15.
JP11152177A 1977-09-19 1977-09-19 Manufacture of heat-shrinkable tube Pending JPS5445381A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11152177A JPS5445381A (en) 1977-09-19 1977-09-19 Manufacture of heat-shrinkable tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11152177A JPS5445381A (en) 1977-09-19 1977-09-19 Manufacture of heat-shrinkable tube

Publications (1)

Publication Number Publication Date
JPS5445381A true JPS5445381A (en) 1979-04-10

Family

ID=14563425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11152177A Pending JPS5445381A (en) 1977-09-19 1977-09-19 Manufacture of heat-shrinkable tube

Country Status (1)

Country Link
JP (1) JPS5445381A (en)

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