JPS5649230A - Manufacture of tube - Google Patents
Manufacture of tubeInfo
- Publication number
- JPS5649230A JPS5649230A JP12619479A JP12619479A JPS5649230A JP S5649230 A JPS5649230 A JP S5649230A JP 12619479 A JP12619479 A JP 12619479A JP 12619479 A JP12619479 A JP 12619479A JP S5649230 A JPS5649230 A JP S5649230A
- Authority
- JP
- Japan
- Prior art keywords
- core material
- tube
- film
- diameter
- axial direction
- 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
Links
Abstract
PURPOSE: To easily eliminate a core material by winding a film having a thermoweldability around a core material expandable in the axial direction, heating the film and forming the film into a tubular shape, and drawing the core material to reduce the diameter of the core material.
CONSTITUTION: A thermowelded film wound in a predetermined thickness on a core material is thermowelded by heating to form an integral tubular shape, and after cooling, the core material is drawn in the axial direction and stretched to reduce the diameter of the core material thereby to eliminate the core material. For example, in an embodiment, a long bridged polyethylene film elongated to have an elongation of 100% and imparted with thermoshrinkage and having a thickness of 0.2mm and a width of 1m, is wound around the central part on a braid tube of a length of 1.2m brainded in one bundle of five stainless wires each having a wire diameter of 1mm. By drawing this brain tube in the axial direction to shrink the outer diameter of the tube. Then, this core material is heat welded in the heating furnace to form a tube, and expanded by holding both ends to form a gap between the inner peripheral surface of the tube and the outer peripheral surface of the core material.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12619479A JPS5649230A (en) | 1979-09-28 | 1979-09-28 | Manufacture of tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12619479A JPS5649230A (en) | 1979-09-28 | 1979-09-28 | Manufacture of tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5649230A true JPS5649230A (en) | 1981-05-02 |
Family
ID=14929019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12619479A Pending JPS5649230A (en) | 1979-09-28 | 1979-09-28 | Manufacture of tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5649230A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59146115U (en) * | 1983-03-20 | 1984-09-29 | ユ−ジ−基材株式会社 | Fiber-reinforced plastic pipe manufacturing equipment that can freely manufacture curved pipes or irregularly shaped pipes |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132813A (en) * | 1977-04-22 | 1978-11-20 | Junkosha Co Ltd | Plastic tube having average pipe conduit and manufacturing method |
-
1979
- 1979-09-28 JP JP12619479A patent/JPS5649230A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS53132813A (en) * | 1977-04-22 | 1978-11-20 | Junkosha Co Ltd | Plastic tube having average pipe conduit and manufacturing method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59146115U (en) * | 1983-03-20 | 1984-09-29 | ユ−ジ−基材株式会社 | Fiber-reinforced plastic pipe manufacturing equipment that can freely manufacture curved pipes or irregularly shaped pipes |
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