JPS5741842A - Slurry for mold and its manufacture - Google Patents
Slurry for mold and its manufactureInfo
- Publication number
- JPS5741842A JPS5741842A JP11643080A JP11643080A JPS5741842A JP S5741842 A JPS5741842 A JP S5741842A JP 11643080 A JP11643080 A JP 11643080A JP 11643080 A JP11643080 A JP 11643080A JP S5741842 A JPS5741842 A JP S5741842A
- Authority
- JP
- Japan
- Prior art keywords
- silicic acid
- subjected
- solution
- dealkalized
- slurry
- 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 get rid of the necessity of hydrolysis and to improve dehydration property and the dimensional stability, by specifying the esterification degree through reacting the alkali silicate subjected to neutralizing or dealkalizing with lower alcohol.
CONSTITUTION: The aqueous solution of alkali silicate is neutralized or dealkalized by inorganic acid and organic acid such as acetic acid or is dealkalized by the ion- exhange resin to obtain aqueous solution of silicic acid. Thereafter, the solution is subjected to solvent substitution by adding a polar organic solvent. Then alcohol is added to the solution of silicic acid subjected to solvent substitution to obtain silicic acid ester having ≤1 esterification degree. A fine powdery refractory is added to the silicic acid ester and mixed with the same to manufacture the slurry for mold.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11643080A JPS5741842A (en) | 1980-08-26 | 1980-08-26 | Slurry for mold and its manufacture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11643080A JPS5741842A (en) | 1980-08-26 | 1980-08-26 | Slurry for mold and its manufacture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5741842A true JPS5741842A (en) | 1982-03-09 |
Family
ID=14686896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11643080A Pending JPS5741842A (en) | 1980-08-26 | 1980-08-26 | Slurry for mold and its manufacture |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5741842A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247969B2 (en) | 2003-09-19 | 2007-07-24 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
-
1980
- 1980-08-26 JP JP11643080A patent/JPS5741842A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7247969B2 (en) | 2003-09-19 | 2007-07-24 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
| US7362034B2 (en) | 2003-09-19 | 2008-04-22 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
| US7368848B2 (en) | 2003-09-19 | 2008-05-06 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
| US7368847B2 (en) | 2003-09-19 | 2008-05-06 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
| US7408285B2 (en) | 2003-09-19 | 2008-08-05 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
| US7423360B2 (en) | 2003-09-19 | 2008-09-09 | Toppan Printing Co., Ltd. | Surface acoustic wave device and environmental difference detecting apparatus using the surface acoustic wave device |
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