JPS6415250A - Mold for reduced pressure casting and its riser molding method - Google Patents
Mold for reduced pressure casting and its riser molding methodInfo
- Publication number
- JPS6415250A JPS6415250A JP16861887A JP16861887A JPS6415250A JP S6415250 A JPS6415250 A JP S6415250A JP 16861887 A JP16861887 A JP 16861887A JP 16861887 A JP16861887 A JP 16861887A JP S6415250 A JPS6415250 A JP S6415250A
- Authority
- JP
- Japan
- Prior art keywords
- riser
- mold
- pattern
- guide bar
- lost foam
- 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
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE:To improve yield of casting and to reduce man-hour for cutting riser by standing a riser guide bar on a master pattern in the mold and also arranging a lost foam riser pattern on the way of standing part of the riser hole. CONSTITUTION:The slender guide bar 11 having diameter corresponding to neck diameter of the riser is stood at the position of the riser on the master pattern 5 in the mold. Next, after forming film 8 on the guide bar 11, the riser pattern 6 made of the lost foam pattern is fitted around the bar 11. Sand (aggregate) is filled in the mold and after film-forming on the upper face of the mold flask, air pressure in the mold is reduced. After that, by taking out the master patter 5 and the guide bar 11, the molding is completed. By this method, as the lost foam riser pattern is possessed at the standing part of the small riser hole in the mold, the riser 6 is miniaturized and the yield of the casting is improved. As the riser is formed as neck-down type, the man-hour for cutting the riser is reduced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16861887A JPS6415250A (en) | 1987-07-08 | 1987-07-08 | Mold for reduced pressure casting and its riser molding method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16861887A JPS6415250A (en) | 1987-07-08 | 1987-07-08 | Mold for reduced pressure casting and its riser molding method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6415250A true JPS6415250A (en) | 1989-01-19 |
Family
ID=15871398
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16861887A Pending JPS6415250A (en) | 1987-07-08 | 1987-07-08 | Mold for reduced pressure casting and its riser molding method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6415250A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI426989B (en) * | 2005-03-07 | 2014-02-21 | Fujifilm Corp | Solution casting method |
| CN108127086A (en) * | 2017-12-22 | 2018-06-08 | 天津万石科技发展有限公司 | A kind of application process of insulated feeder in lost foam casting |
-
1987
- 1987-07-08 JP JP16861887A patent/JPS6415250A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI426989B (en) * | 2005-03-07 | 2014-02-21 | Fujifilm Corp | Solution casting method |
| CN108127086A (en) * | 2017-12-22 | 2018-06-08 | 天津万石科技发展有限公司 | A kind of application process of insulated feeder in lost foam casting |
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