JPS5750240A - Method for making mold - Google Patents
Method for making moldInfo
- Publication number
- JPS5750240A JPS5750240A JP12763980A JP12763980A JPS5750240A JP S5750240 A JPS5750240 A JP S5750240A JP 12763980 A JP12763980 A JP 12763980A JP 12763980 A JP12763980 A JP 12763980A JP S5750240 A JPS5750240 A JP S5750240A
- Authority
- JP
- Japan
- Prior art keywords
- flask
- gas
- molding
- hole
- supply hole
- 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 suck a gas from a gas supply hole through the molding sand in a molding flask into an evacuating chamber and prevent the leakage of the gas by connecting a gas generator to the gas supply hole of a cover member placed on the molding flask on a pattern plate provided with the evacuating chamber.
CONSTITUTION: Molding sand 8 is charged into the space delineated by a pattern plate 1 and a molding flask 6, and the top surface of the flask 6 is covered with a film sheet 9; at the same time, a vacuum pump is operated. Then, negative pressure is developed in the flask 6 via an evacuating chamber 2 and vent holes 3, and the sand 8 is packed uniformly. Next, the sheet 9 is removed, a cover member 10 is put on the top surface of the flask 6, and further a gas generator 15 is connected via a conduit 14 to the gas supply hole 12 of the member 10. Thence, the vacuum pump is operated to suck the gas of the generator 15 into the flask 6 through the conduit 14 and the hole 12, and the gas is sucked away through the molding sand 8 then through the hole 3, the chamber 2, and a suction pipe 18.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12763980A JPS5750240A (en) | 1980-09-12 | 1980-09-12 | Method for making mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12763980A JPS5750240A (en) | 1980-09-12 | 1980-09-12 | Method for making mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5750240A true JPS5750240A (en) | 1982-03-24 |
Family
ID=14965064
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12763980A Pending JPS5750240A (en) | 1980-09-12 | 1980-09-12 | Method for making mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5750240A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103273015A (en) * | 2013-05-13 | 2013-09-04 | 山东建筑大学 | Single-column sodium silicate-bonded sand molding machine and molding technology thereof |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836095U (en) * | 1971-09-07 | 1973-04-28 |
-
1980
- 1980-09-12 JP JP12763980A patent/JPS5750240A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4836095U (en) * | 1971-09-07 | 1973-04-28 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103273015A (en) * | 2013-05-13 | 2013-09-04 | 山东建筑大学 | Single-column sodium silicate-bonded sand molding machine and molding technology thereof |
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