JPS56115219A - Manufacture of frp bent tube - Google Patents
Manufacture of frp bent tubeInfo
- Publication number
- JPS56115219A JPS56115219A JP2028780A JP2028780A JPS56115219A JP S56115219 A JPS56115219 A JP S56115219A JP 2028780 A JP2028780 A JP 2028780A JP 2028780 A JP2028780 A JP 2028780A JP S56115219 A JPS56115219 A JP S56115219A
- Authority
- JP
- Japan
- Prior art keywords
- shape retaining
- frp
- bent
- tube
- core
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000463 material Substances 0.000 abstract 9
- 238000005452 bending Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003232 water-soluble binding agent Substances 0.000 abstract 1
- 238000009736 wetting Methods 0.000 abstract 1
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
PURPOSE: To obtain simply the FRP bent tube having smooth inner and outer surfaces by a method wherein an auxiliary core is wetted and a tube body is bent before an FRP layer, formed by utilizing a material losing the shape retaining strength thereof by wetting as the auxiliary core, finishes the hardening thereof.
CONSTITUTION: The material (a shape retaining material) 5, having the shape retaining strength in a dried condition but losing the shape retaining strength thereof in a wetted condition, is coated on the whole outer peripheral surface of a straight hard core 1 and FRP material 4 is wound thereon through a parting tape 3. The core 1 is released from the shape retaining material while the hardening resin is not hardened yet or in semihardened condition and water is injected against the inner surface of the tube corresponding to a bending part to wet and bent the shape retaining material 5 at that part, then that part is adjusted to the predetermined curvature, thereafter, the FRP material layer 4 is hardened perfectly. Thereafter, the shape retaining material 5 is removed from the inner surface of the bent tube. Nonsizing paper or machined paper utilizing water soluble binding agent is utilized as the shape retaining material.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028780A JPS56115219A (en) | 1980-02-19 | 1980-02-19 | Manufacture of frp bent tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2028780A JPS56115219A (en) | 1980-02-19 | 1980-02-19 | Manufacture of frp bent tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56115219A true JPS56115219A (en) | 1981-09-10 |
Family
ID=12022945
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2028780A Pending JPS56115219A (en) | 1980-02-19 | 1980-02-19 | Manufacture of frp bent tube |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56115219A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5571527A (en) * | 1978-11-22 | 1980-05-29 | Sekisui Chem Co Ltd | Manufacturing method for reinforced plastic made bent tube |
-
1980
- 1980-02-19 JP JP2028780A patent/JPS56115219A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5571527A (en) * | 1978-11-22 | 1980-05-29 | Sekisui Chem Co Ltd | Manufacturing method for reinforced plastic made bent tube |
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