JPS55113540A - Injection molding of thermosetting resin - Google Patents
Injection molding of thermosetting resinInfo
- Publication number
- JPS55113540A JPS55113540A JP2097379A JP2097379A JPS55113540A JP S55113540 A JPS55113540 A JP S55113540A JP 2097379 A JP2097379 A JP 2097379A JP 2097379 A JP2097379 A JP 2097379A JP S55113540 A JPS55113540 A JP S55113540A
- Authority
- JP
- Japan
- Prior art keywords
- screw
- heating
- cylinder
- temperature
- thermosetting resin
- 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 improve stability of material, raise the temperature of a sheet material, and reduce molding time by a method wherein the lead angle and compression ratio of a screw fitted in a cylinder are specified, and the front and rear portions of the cylinder are kept at roughly the same temperature.
CONSTITUTION: A screw 2 is provided with a lead angle of 13W16° and a compression ratio around 1.0, so as to minimize frictional heating in a material (thermosetting resin) due to rotation of the screw 2. The clearance between the inside wall surface 1b of the cylinder and the crest of thread 10 of the screw 2 is set to be 0.02W0.04mm, so as to substantially eliminate leak flow of the material and hence frictional heating due to the leak flow. Heating is effected by heating-medium (oil) circulation system, so that continuous operation is conducted with stable material temperature, without temperature changes which appear upon start and stop of power supply in electric heating system.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2097379A JPS55113540A (en) | 1979-02-23 | 1979-02-23 | Injection molding of thermosetting resin |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2097379A JPS55113540A (en) | 1979-02-23 | 1979-02-23 | Injection molding of thermosetting resin |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55113540A true JPS55113540A (en) | 1980-09-02 |
Family
ID=12042104
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2097379A Pending JPS55113540A (en) | 1979-02-23 | 1979-02-23 | Injection molding of thermosetting resin |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55113540A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510110A (en) * | 1980-09-30 | 1985-04-09 | Costruzioni Meccaniche G. Mazzoni S.P.A. | High efficiency, fast extruders for extruding and refining soap and detergents |
-
1979
- 1979-02-23 JP JP2097379A patent/JPS55113540A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4510110A (en) * | 1980-09-30 | 1985-04-09 | Costruzioni Meccaniche G. Mazzoni S.P.A. | High efficiency, fast extruders for extruding and refining soap and detergents |
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