JPS5678934A - Inner mold for molding frp and molding method of frp molded product - Google Patents
Inner mold for molding frp and molding method of frp molded productInfo
- Publication number
- JPS5678934A JPS5678934A JP15605779A JP15605779A JPS5678934A JP S5678934 A JPS5678934 A JP S5678934A JP 15605779 A JP15605779 A JP 15605779A JP 15605779 A JP15605779 A JP 15605779A JP S5678934 A JPS5678934 A JP S5678934A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molding
- molded product
- frp
- inner mold
- 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
Landscapes
- Moulding By Coating Moulds (AREA)
Abstract
PURPOSE: To make an inner wall of a molded product smooth by a method wherein an inner mold portion for molding an undercut portion of the molded product is formed by a soft elastomer and made freely deformable in case of withdrawing.
CONSTITUTION: For example, the inner mold 1 for molding an FRP pipe joint 10 is consisted of an outer shell mold 2 and a core mold 3 inserted into the outer shell mold 2 in a freely slidable manner. After the FRP pipe 10 is molded and cured on the inner mold from a resin, a reinforcing material or the like, if the core mold 3 is withdrawn, the outer shell mold 2 made of a soft elastomer such as a rubber or a foamed plastic is easily demolded even if a protruded portion such as a ring groove 12 is formed to the FRP pipe and the smoothness of the inner wall of the molded product is maintained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15605779A JPS5678934A (en) | 1979-11-30 | 1979-11-30 | Inner mold for molding frp and molding method of frp molded product |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15605779A JPS5678934A (en) | 1979-11-30 | 1979-11-30 | Inner mold for molding frp and molding method of frp molded product |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5678934A true JPS5678934A (en) | 1981-06-29 |
Family
ID=15619354
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15605779A Pending JPS5678934A (en) | 1979-11-30 | 1979-11-30 | Inner mold for molding frp and molding method of frp molded product |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5678934A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505465A (en) * | 1973-05-18 | 1975-01-21 | ||
JPS5298779A (en) * | 1976-02-17 | 1977-08-18 | Kubota Ltd | Method of manufacture of corrugated pipe |
-
1979
- 1979-11-30 JP JP15605779A patent/JPS5678934A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS505465A (en) * | 1973-05-18 | 1975-01-21 | ||
JPS5298779A (en) * | 1976-02-17 | 1977-08-18 | Kubota Ltd | Method of manufacture of corrugated pipe |
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