JPS555821A - Method for molding plastic resin made bent pipe - Google Patents
Method for molding plastic resin made bent pipeInfo
- Publication number
- JPS555821A JPS555821A JP7816078A JP7816078A JPS555821A JP S555821 A JPS555821 A JP S555821A JP 7816078 A JP7816078 A JP 7816078A JP 7816078 A JP7816078 A JP 7816078A JP S555821 A JPS555821 A JP S555821A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- pipe
- core mold
- bent pipe
- bent
- 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
- 238000000034 method Methods 0.000 title abstract 2
- 239000000088 plastic resin Substances 0.000 title abstract 2
- 238000000465 moulding Methods 0.000 title 1
- 239000000463 material Substances 0.000 abstract 4
- 238000005452 bending Methods 0.000 abstract 1
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Landscapes
- Shaping Of Tube Ends By Bending Or Straightening (AREA)
Abstract
PURPOSE: To mold a bent pipe without providing increased thickness, decreased thickness, creases and the like at the bending part, by fitting a heat-softened resin pipe in such a manner as sheathes a core mold having a curving part which corresponds to a curving part of the bent pipe, and by inserting the pipe in a mold being composed of an external mold.
CONSTITUTION: A plastic resin pipe material 15, which is softened by heating, is fitted in such a manner that sheathes a guide core mold 13, and is first inserted into a straight tube part 16 of an external mold 11. Subsequently a hook convex part 14' is jointed with a hook concave part 6' of a bent core mold 6 for aligment. Then a press-in sleeve 14, which is inserted along the core mold 13, presses the pipe material 15, and thus, fills gradually the pipe material into a cavity provided at a gap between an outer circumference of the core mold 6 and the external mold 11. It is desirable, however, that the pipe material 15 is preferably re-pressured when it reaches a support seat 9, that is, the bent pipe is molded by a 2-stage press process.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7816078A JPS555821A (en) | 1978-06-27 | 1978-06-27 | Method for molding plastic resin made bent pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7816078A JPS555821A (en) | 1978-06-27 | 1978-06-27 | Method for molding plastic resin made bent pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS555821A true JPS555821A (en) | 1980-01-17 |
Family
ID=13654162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7816078A Pending JPS555821A (en) | 1978-06-27 | 1978-06-27 | Method for molding plastic resin made bent pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS555821A (en) |
-
1978
- 1978-06-27 JP JP7816078A patent/JPS555821A/en active Pending
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