JPS5456678A - Heat-shrinkable resin tube and its manufacture - Google Patents
Heat-shrinkable resin tube and its manufactureInfo
- 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
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
- Laminated Bodies (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
- Lining Or Joining Of Plastics Or 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.
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)
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)
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 |
-
1977
- 1977-10-14 JP JP12372277A patent/JPS5456678A/en active Granted
Cited By (2)
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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