JPS5691955A - Production of self-hardening mold - Google Patents
Production of self-hardening moldInfo
- Publication number
- JPS5691955A JPS5691955A JP17009379A JP17009379A JPS5691955A JP S5691955 A JPS5691955 A JP S5691955A JP 17009379 A JP17009379 A JP 17009379A JP 17009379 A JP17009379 A JP 17009379A JP S5691955 A JPS5691955 A JP S5691955A
- Authority
- JP
- Japan
- Prior art keywords
- sand
- molding
- mold
- self
- cement
- 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
- Mold Materials And Core Materials (AREA)
Abstract
PURPOSE: To expedite the strength development of a sand mold and mold a nontoxic mold of high strength by compounding a binder combining cement and glyoxal in molding sand and molding the same.
CONSTITUTION: Glyoxal is prepared to a 40% aqueous soln. and is added to molding sand such as silica sand at 0.5W15wt% based on the weight of the sand, and the mixture is mixed. Thence, cement such as portland cement is added at 0.5W 20% thereto and the mixture is kneaded. This is filled in a molding flask, and is molded. According to this method, the development of strength is expedited, and no toxic gases are evolved during molding or pouring of molten metal, thus the self- hardening mold of good collapsing property of sand after pouring is obtained.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17009379A JPS5691955A (en) | 1979-12-26 | 1979-12-26 | Production of self-hardening mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17009379A JPS5691955A (en) | 1979-12-26 | 1979-12-26 | Production of self-hardening mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5691955A true JPS5691955A (en) | 1981-07-25 |
Family
ID=15898505
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17009379A Pending JPS5691955A (en) | 1979-12-26 | 1979-12-26 | Production of self-hardening mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5691955A (en) |
-
1979
- 1979-12-26 JP JP17009379A patent/JPS5691955A/en active Pending
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