JPS57106443A - Improving method of furan mold - Google Patents
Improving method of furan moldInfo
- Publication number
- JPS57106443A JPS57106443A JP18442080A JP18442080A JPS57106443A JP S57106443 A JPS57106443 A JP S57106443A JP 18442080 A JP18442080 A JP 18442080A JP 18442080 A JP18442080 A JP 18442080A JP S57106443 A JPS57106443 A JP S57106443A
- Authority
- JP
- Japan
- Prior art keywords
- furan
- type
- cast steel
- mold
- molding sand
- 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 obtain a furan mold which causes no cementation despite the repeated casting of cast steel by kneading and molding molding sand and ignition additives of enzyme type, saccharides type and alcohol type together with a furan resin binder and a hardener.
CONSTITUTION: A furan mold is crushed to sand grains, after which a furan resin binder, a hardener (e.g.; toluene sulfonic acid), and ignition additives of enzyme type, saccharides type and alcohol type are added to this molding sand having a large content of residual carbon respectively at prescribed ratios, and the mixture is kneaded and molded, whereby a furan mold is made. Thence, cast steel, stainless cast steel, etc. are cast by using this furan mold. As a result of this casting, the decomposed gases of the carbon, furan resin binder, etc. stuck to the molding sand are burned by the air in the molding sand. At this time, carbons are mostly turned to CO2 by the catalytic effect of the ignition additives, whereby the CO which is the factor for cementation is decreased considerably, and the cementation to cast steel is prevented over a long period of time.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18442080A JPS57106443A (en) | 1980-12-24 | 1980-12-24 | Improving method of furan mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP18442080A JPS57106443A (en) | 1980-12-24 | 1980-12-24 | Improving method of furan mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57106443A true JPS57106443A (en) | 1982-07-02 |
Family
ID=16152845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP18442080A Pending JPS57106443A (en) | 1980-12-24 | 1980-12-24 | Improving method of furan mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57106443A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104475649A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Small steel cast molding sand and preparation method thereof |
CN104493070A (en) * | 2014-11-26 | 2015-04-08 | 马鞍山市恒达耐磨材料有限责任公司 | Molding sand for cast steel and preparation method thereof |
-
1980
- 1980-12-24 JP JP18442080A patent/JPS57106443A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN104475649A (en) * | 2014-11-03 | 2015-04-01 | 繁昌县琦祥铸造厂 | Small steel cast molding sand and preparation method thereof |
CN104493070A (en) * | 2014-11-26 | 2015-04-08 | 马鞍山市恒达耐磨材料有限责任公司 | Molding sand for cast steel and preparation method thereof |
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