JPS5586653A - Mold forming method using microwave - Google Patents
Mold forming method using microwaveInfo
- Publication number
- JPS5586653A JPS5586653A JP15919078A JP15919078A JPS5586653A JP S5586653 A JPS5586653 A JP S5586653A JP 15919078 A JP15919078 A JP 15919078A JP 15919078 A JP15919078 A JP 15919078A JP S5586653 A JPS5586653 A JP S5586653A
- Authority
- JP
- Japan
- Prior art keywords
- casting sand
- microwaves
- substance
- coating
- harden
- 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 harden the surface positions of casting sand in the same hardness and same time as in other positions, by filling the pattern with casting sand containing thermoset or thermoplastic resin and dielectric substance for microwaves, and coating the casting sand surface of heat insulation material, then radiating microwaves.
CONSTITUTION: A pattern 1 of specified shape made of silicone rubber or the like is filled with casting sand 3 containing thermoset or thermoplastic resin and dielectric substance with respect to microwaves. Then, a filling port 4 is covered with a coating 5 made from heat insulation substance such as silicone rubber or weak heating substance with respect to microwaves to cover the surface positions 3a of the casting sand 3. Then, microwaves 6 are radiated from above the coating 5 to harden the casting sand 3, and a mold is obtained by releasing. As weak heating substance, a material of which dielectric loss coefficient is 20×104, such as glass fiber, wooden material, pyrex glass or epoxy resin, may be used.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15919078A JPS5586653A (en) | 1978-12-26 | 1978-12-26 | Mold forming method using microwave |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15919078A JPS5586653A (en) | 1978-12-26 | 1978-12-26 | Mold forming method using microwave |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5586653A true JPS5586653A (en) | 1980-06-30 |
Family
ID=15688269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15919078A Pending JPS5586653A (en) | 1978-12-26 | 1978-12-26 | Mold forming method using microwave |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5586653A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009125799A (en) * | 2007-11-28 | 2009-06-11 | Aisin Takaoka Ltd | Method for producing green sand mold |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842531A (en) * | 1971-10-04 | 1973-06-20 | ||
JPS54163723A (en) * | 1978-06-16 | 1979-12-26 | Nippon Musical Instruments Mfg | Production of cast mold |
-
1978
- 1978-12-26 JP JP15919078A patent/JPS5586653A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4842531A (en) * | 1971-10-04 | 1973-06-20 | ||
JPS54163723A (en) * | 1978-06-16 | 1979-12-26 | Nippon Musical Instruments Mfg | Production of cast mold |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009125799A (en) * | 2007-11-28 | 2009-06-11 | Aisin Takaoka Ltd | Method for producing green sand mold |
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