JPS55114440A - Mold molding method - Google Patents
Mold molding methodInfo
- Publication number
- JPS55114440A JPS55114440A JP13965879A JP13965879A JPS55114440A JP S55114440 A JPS55114440 A JP S55114440A JP 13965879 A JP13965879 A JP 13965879A JP 13965879 A JP13965879 A JP 13965879A JP S55114440 A JPS55114440 A JP S55114440A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- facing sand
- sand
- pattern
- facing
- 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.)
- Granted
Links
Abstract
PURPOSE: To increase heat resistance and gas permeability by forming a facing sand layer on the mold pattern through the use of thin-plate-form facing sand having plasticity, packing backing sand and rapping the mold then coating water glass solution and the specific coat agent on the facing sand layer, and firing the mold.
CONSTITUTION: The thin-plate-form facing sand 4 having plasticity formed through kneading of organic binder such as latex is torn to suitable sizes and is affixed onto the surface of the mold pattern 2 placed on a molding board 1 and is connected by a suitable method. Thence, backing sand 5 is put between the pattern 2 and flask 3 and is then rammed and molded by a rammer 6 and stamp 7. Thence, the mold is rapped and a water glass solution is sprayed on the facing sand layer. Further, alcohol zirconium coat is coated thereon and is ignited to fire. This mold molding method results in decreased use amount of the facing sand, decreased molding cost and reduced gas evolution amount at the pouring.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13965879A JPS55114440A (en) | 1979-10-29 | 1979-10-29 | Mold molding method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13965879A JPS55114440A (en) | 1979-10-29 | 1979-10-29 | Mold molding method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55114440A true JPS55114440A (en) | 1980-09-03 |
JPS5614380B2 JPS5614380B2 (en) | 1981-04-03 |
Family
ID=15250386
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13965879A Granted JPS55114440A (en) | 1979-10-29 | 1979-10-29 | Mold molding method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55114440A (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60193483A (en) * | 1984-03-16 | 1985-10-01 | 株式会社ソフイア | Ball projection device of pinball machine |
-
1979
- 1979-10-29 JP JP13965879A patent/JPS55114440A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5614380B2 (en) | 1981-04-03 |
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