JPS5449614A - Forming method of spigots for reinforced plastic pipes - Google Patents
Forming method of spigots for reinforced plastic pipesInfo
- Publication number
- JPS5449614A JPS5449614A JP11572777A JP11572777A JPS5449614A JP S5449614 A JPS5449614 A JP S5449614A JP 11572777 A JP11572777 A JP 11572777A JP 11572777 A JP11572777 A JP 11572777A JP S5449614 A JPS5449614 A JP S5449614A
- Authority
- JP
- Japan
- Prior art keywords
- spigots
- pipes
- reinforced plastic
- split mold
- pipe
- 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 form a reinforced plastic pipe designed for propelling work method, with its coupling unit which ensures water-tight and flat connection on the outer surface.
CONSTITUTION: Material 2 for impregnation forming of thermosetting resin is wound up around the core mold 1 and the split mold 3 is fitted on it so that the layer of the forming material 2 squeezed. The split mold 3 is removed after setting and the product is cut in two at the portion where the split mold removed. Thus reinforced plastic pipes 5, 5' having spigots 52, 52' with calibers smaller than that at the pipe center can be produced. The spigots 52, 52' of pipes 5, 5' are opposed to each other, being fitted with a radial projected stripe 61 on the inner surface at the center, and inserted through packings 7, 7' in the open ends of a short pipe coupling 6 having the same caliber as that of the pipes 5, 5' so that the outer surfaces of the pipes 5, 5' are flat with the outer surface of the pipe coupling 6. In this way, the spigots of the reinforced plastic pipes 5, 5' are easily formed in a short time
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11572777A JPS5449614A (en) | 1977-09-26 | 1977-09-26 | Forming method of spigots for reinforced plastic pipes |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11572777A JPS5449614A (en) | 1977-09-26 | 1977-09-26 | Forming method of spigots for reinforced plastic pipes |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5449614A true JPS5449614A (en) | 1979-04-19 |
Family
ID=14669601
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11572777A Pending JPS5449614A (en) | 1977-09-26 | 1977-09-26 | Forming method of spigots for reinforced plastic pipes |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5449614A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0241781U (en) * | 1988-09-13 | 1990-03-22 |
-
1977
- 1977-09-26 JP JP11572777A patent/JPS5449614A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0241781U (en) * | 1988-09-13 | 1990-03-22 |
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