JPS5695645A - Manufacture of thermo-contraction tube - Google Patents

Manufacture of thermo-contraction tube

Info

Publication number
JPS5695645A
JPS5695645A JP17226279A JP17226279A JPS5695645A JP S5695645 A JPS5695645 A JP S5695645A JP 17226279 A JP17226279 A JP 17226279A JP 17226279 A JP17226279 A JP 17226279A JP S5695645 A JPS5695645 A JP S5695645A
Authority
JP
Japan
Prior art keywords
tube
diameter
thermo
manufacture
solidified
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
JP17226279A
Other languages
Japanese (ja)
Other versions
JPS6248570B2 (en
Inventor
Tsukasa Chiba
Norio Takahata
Masakatsu Sato
Kunio Kimura
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.)
Hitachi Cable Ltd
Original Assignee
Hitachi Cable 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 Hitachi Cable Ltd filed Critical Hitachi Cable Ltd
Priority to JP17226279A priority Critical patent/JPS5695645A/en
Publication of JPS5695645A publication Critical patent/JPS5695645A/en
Publication of JPS6248570B2 publication Critical patent/JPS6248570B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

PURPOSE:To expand the tube to its diametrical direction alone by a method wherein, a blank tube is heated at a temperature above its softening point while an inner pressure is applied with the intermediary of a fluid and its diameter is made to a required value by extending its inner diameter, then cooled and solidified. CONSTITUTION:The blank tube 2 is heated at a temperature above its softening point, pressure is applied to its inner space by a compressed air, the tube is gradually expanded against the tension of the spiral spring 1 wound around the outer circumference thereof, and when the diameter reaches the predetermined value, it is cooled and solidified.
JP17226279A 1979-12-28 1979-12-28 Manufacture of thermo-contraction tube Granted JPS5695645A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17226279A JPS5695645A (en) 1979-12-28 1979-12-28 Manufacture of thermo-contraction tube

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17226279A JPS5695645A (en) 1979-12-28 1979-12-28 Manufacture of thermo-contraction tube

Publications (2)

Publication Number Publication Date
JPS5695645A true JPS5695645A (en) 1981-08-03
JPS6248570B2 JPS6248570B2 (en) 1987-10-14

Family

ID=15938629

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17226279A Granted JPS5695645A (en) 1979-12-28 1979-12-28 Manufacture of thermo-contraction tube

Country Status (1)

Country Link
JP (1) JPS5695645A (en)

Also Published As

Publication number Publication date
JPS6248570B2 (en) 1987-10-14

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