JPS5689929A - Resin injection molding method - Google Patents
Resin injection molding methodInfo
- Publication number
- JPS5689929A JPS5689929A JP16797779A JP16797779A JPS5689929A JP S5689929 A JPS5689929 A JP S5689929A JP 16797779 A JP16797779 A JP 16797779A JP 16797779 A JP16797779 A JP 16797779A JP S5689929 A JPS5689929 A JP S5689929A
- Authority
- JP
- Japan
- Prior art keywords
- resin
- pinch
- hardness
- air
- molding method
- 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
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
PURPOSE: To produce a homogeneous fiber-reinforced plastic article without bubbles by the resin injection molding method, wherein a resilient body having a Shore A type hardness of 60W80 is employed as a pinch-off.
CONSTITUTION: As the pinch-off element 7 for discharging air within the mold is used various rubbers, Teflon and other resilient bodies having a hardness of 60W80 determined by a Shore A type hardness meter. Reinforcing fibers such as glass fibers are placed on the male mold 1, the female mold 2 is adjusted by the guide pin 3, then the molds are clamped by a clamping device 4, a thermosetting resin such as epoxy resin or unsaturated polyester is injected via an injection port 5, the injection is stopped when air is discharged through the pinch-off 7 and further the resin start to leak, and the resin is cured. The molds may be reinforced by a steel member 6. Since the pinch-off 7 has a suitable hardness, the air can be effectively discharged, and since the outflow of the resin is minimum, the homogeneous article without bubbles can be obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16797779A JPS5689929A (en) | 1979-12-24 | 1979-12-24 | Resin injection molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16797779A JPS5689929A (en) | 1979-12-24 | 1979-12-24 | Resin injection molding method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5689929A true JPS5689929A (en) | 1981-07-21 |
Family
ID=15859518
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP16797779A Pending JPS5689929A (en) | 1979-12-24 | 1979-12-24 | Resin injection molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5689929A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407322A (en) * | 2003-10-23 | 2005-04-27 | Railko Ltd | Composite bearing material |
-
1979
- 1979-12-24 JP JP16797779A patent/JPS5689929A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2407322A (en) * | 2003-10-23 | 2005-04-27 | Railko Ltd | Composite bearing material |
GB2407322B (en) * | 2003-10-23 | 2007-07-25 | Railko Ltd | Composite bearing material |
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