JPS5577957A - Flame spray coating method of sand mold - Google Patents
Flame spray coating method of sand moldInfo
- Publication number
- JPS5577957A JPS5577957A JP15104978A JP15104978A JPS5577957A JP S5577957 A JPS5577957 A JP S5577957A JP 15104978 A JP15104978 A JP 15104978A JP 15104978 A JP15104978 A JP 15104978A JP S5577957 A JPS5577957 A JP S5577957A
- Authority
- JP
- Japan
- Prior art keywords
- sand mold
- sand
- flame
- mold surface
- water glass
- 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 prevent the cracking of the sand mold and dropping of said grains through heating at the flame spraying by coating the mixed solution containing water glass and refractory powder on the sand mold surface prior to spray coating of the refractory material.
CONSTITUTION: The mixed solution of water glass solution and refractory powder is coated on the sand mold surface to allow the solution percolate about 2W5mm in the sand mold surface. After it is dried, refractory material is flame-sprayed. This method lets the binding force of the sand of the sand mold surface layer to be increased by the water glass and refractory powder and lets the coating be accomplished with the firm flame-sprayed layer without separation of sand at the flame spraying of the refractory material. Since burning-in of sand does not occur with the casting to be cast by using this sand mold, the cost required for surface finishing of the casting is saved.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15104978A JPS5577957A (en) | 1978-12-08 | 1978-12-08 | Flame spray coating method of sand mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15104978A JPS5577957A (en) | 1978-12-08 | 1978-12-08 | Flame spray coating method of sand mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5577957A true JPS5577957A (en) | 1980-06-12 |
Family
ID=15510174
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15104978A Pending JPS5577957A (en) | 1978-12-08 | 1978-12-08 | Flame spray coating method of sand mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5577957A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7028744B2 (en) | 2004-03-17 | 2006-04-18 | National Research Council Of Canada | Surface modification of castings |
-
1978
- 1978-12-08 JP JP15104978A patent/JPS5577957A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7028744B2 (en) | 2004-03-17 | 2006-04-18 | National Research Council Of Canada | Surface modification of castings |
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