JPS56160847A - Slurry for mold - Google Patents
Slurry for moldInfo
- Publication number
- JPS56160847A JPS56160847A JP6340380A JP6340380A JPS56160847A JP S56160847 A JPS56160847 A JP S56160847A JP 6340380 A JP6340380 A JP 6340380A JP 6340380 A JP6340380 A JP 6340380A JP S56160847 A JPS56160847 A JP S56160847A
- Authority
- JP
- Japan
- Prior art keywords
- bond
- mold
- slurry
- silica
- addition
- 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 slurry which is easy to handle during forming of ceramic coating layers and permits production of molds of high strength by containing a vinyl acetate bond in a colloidal silicate binder of refractory slurry.
CONSTITUTION: Refractory powder of silica base such as molten quartz or silica or electromolten and calcined alumina and an aqueous colloidal silica soln. such as water-base silica sol, or alkyl silicate are mixed. Further, a vinyl acetate bond is added to this aqueous soln. to prepare the slurry for molds. It is necessary to use said bond by thoroughly stirring in the aqueous soln. The green sand mold strength of the mold is improved by the addition of said bond and as the amount thereof is larger, the mold of the higher strength is obtained. In contrast with this, the mold strength after calcining is decreased by the addition of said bond, and there is the effect that its sand strippability is improved, but the above-mentioned effect has a tendency to saturate with the increasing amount of addition, and the proper amount is about 2W20wt%.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6340380A JPS56160847A (en) | 1980-05-15 | 1980-05-15 | Slurry for mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP6340380A JPS56160847A (en) | 1980-05-15 | 1980-05-15 | Slurry for mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56160847A true JPS56160847A (en) | 1981-12-10 |
Family
ID=13228295
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP6340380A Pending JPS56160847A (en) | 1980-05-15 | 1980-05-15 | Slurry for mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56160847A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020034312A (en) * | 2000-10-31 | 2002-05-09 | 임옥동 | The Refractory Binder for Ti Alloy Castings |
-
1980
- 1980-05-15 JP JP6340380A patent/JPS56160847A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20020034312A (en) * | 2000-10-31 | 2002-05-09 | 임옥동 | The Refractory Binder for Ti Alloy Castings |
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