JPS5456678A - Heat-shrinkable resin tube and its manufacture - Google Patents

Heat-shrinkable resin tube and its manufacture

Info

Publication number
JPS5456678A
JPS5456678A JP12372277A JP12372277A JPS5456678A JP S5456678 A JPS5456678 A JP S5456678A JP 12372277 A JP12372277 A JP 12372277A JP 12372277 A JP12372277 A JP 12372277A JP S5456678 A JPS5456678 A JP S5456678A
Authority
JP
Japan
Prior art keywords
tube
heat
pins
core mold
shrinkage
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
JP12372277A
Other languages
Japanese (ja)
Other versions
JPS6130897B2 (en
Inventor
Keiichi Kojima
Hiroshi Nishitani
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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Priority to JP12372277A priority Critical patent/JPS5456678A/en
Publication of JPS5456678A publication Critical patent/JPS5456678A/en
Publication of JPS6130897B2 publication Critical patent/JPS6130897B2/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
    • B29C61/06—Making preforms having internal stresses, e.g. plastic memory
    • B29C61/08—Making preforms having internal stresses, e.g. plastic memory by stretching tubes

Landscapes

  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To manufacture the title tube having a large shrinkage in the radial direction and a small thrinkage in the long direction, by inserting a number of pins in a tube, by extending the tube with an extending core mold to form a polygoral tube, followed by heat-shrinking the tube thus obtained in a cylinder. CONSTITUTION:A number of metallic pins 2 are fixed to given positions of the pin fixing plate 1, and brought near the extending core mold 4. The pins 2 are covered with the heat-shrinkable resin tube 5 made from polyethylene, ethylene-vinyl acetate copolymer, etc., and the core mold 4 is fixed to the mounting table 6. The tube 5 is heated to a temperature below the melting temperature, and the fixing plate 1 and pins 2 are lowered. The tube 5 is extended with the core mold 4 to form a polygonal tube. A cylindrical mandrel having such an outside diameter as to be inscribed in the polygonal tube and a non-crosslinked ethylene-acrylate or ethylene- vinyl acetate coplymer layer on the surface is inserted in the tube 5, heated, shrunk, and cooled. The mandrel is drawn out to give a heat-shrinkable resin tube having a shrinkage in the radial direction >=50%, a shrinkage in the long direction <=5%, and an adhesive layer having a melting temperature lower than the shrinking temperature of the tube 5 on the inner surface.
JP12372277A 1977-10-14 1977-10-14 Heat-shrinkable resin tube and its manufacture Granted JPS5456678A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12372277A JPS5456678A (en) 1977-10-14 1977-10-14 Heat-shrinkable resin tube and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12372277A JPS5456678A (en) 1977-10-14 1977-10-14 Heat-shrinkable resin tube and its manufacture

Publications (2)

Publication Number Publication Date
JPS5456678A true JPS5456678A (en) 1979-05-07
JPS6130897B2 JPS6130897B2 (en) 1986-07-16

Family

ID=14867733

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12372277A Granted JPS5456678A (en) 1977-10-14 1977-10-14 Heat-shrinkable resin tube and its manufacture

Country Status (1)

Country Link
JP (1) JPS5456678A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619722A (en) * 1979-07-19 1981-02-24 Raychem Corp Coating arrangement for long base material and its coating method

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62277592A (en) * 1986-05-26 1987-12-02 株式会社　東京精密 X-y moving table
JP2631396B2 (en) * 1988-10-28 1997-07-16 キヤノン株式会社 Static pressure gas bearing XY stage

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5619722A (en) * 1979-07-19 1981-02-24 Raychem Corp Coating arrangement for long base material and its coating method
JPH0244709B2 (en) * 1979-07-19 1990-10-04 Raychem Corp

Also Published As

Publication number Publication date
JPS6130897B2 (en) 1986-07-16

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