JPS56139256A - Production of sand core for pressure casting - Google Patents
Production of sand core for pressure castingInfo
- Publication number
- JPS56139256A JPS56139256A JP4170580A JP4170580A JPS56139256A JP S56139256 A JPS56139256 A JP S56139256A JP 4170580 A JP4170580 A JP 4170580A JP 4170580 A JP4170580 A JP 4170580A JP S56139256 A JPS56139256 A JP S56139256A
- Authority
- JP
- Japan
- Prior art keywords
- core
- coating layer
- sand
- binder
- sand core
- 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
- 238000005266 casting Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 7
- 239000011247 coating layer Substances 0.000 abstract 4
- 239000011230 binding agent Substances 0.000 abstract 3
- RJDOZRNNYVAULJ-UHFFFAOYSA-L [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[F-].[F-].[Mg++].[Mg++].[Mg++].[Al+3].[Si+4].[Si+4].[Si+4].[K+] RJDOZRNNYVAULJ-UHFFFAOYSA-L 0.000 abstract 2
- 229920005989 resin Polymers 0.000 abstract 2
- 239000011347 resin Substances 0.000 abstract 2
- 239000004576 sand Substances 0.000 abstract 2
- 229920001187 thermosetting polymer Polymers 0.000 abstract 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 239000005011 phenolic resin Substances 0.000 abstract 1
- 229920001568 phenolic resin Polymers 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
- 239000000377 silicon dioxide Substances 0.000 abstract 1
- 239000002002 slurry Substances 0.000 abstract 1
- 229910052845 zircon Inorganic materials 0.000 abstract 1
- GFQYVLUOOAAOGM-UHFFFAOYSA-N zirconium(iv) silicate Chemical compound [Zr+4].[O-][Si]([O-])([O-])[O-] GFQYVLUOOAAOGM-UHFFFAOYSA-N 0.000 abstract 1
Landscapes
- Mold Materials And Core Materials (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To produce a core which is highly pressure resistant and is easily collapsible by heat treatment by using a thermosetting resin as a binder.
CONSTITUTION: Silica sand, zircon sand, etc. are used as aggregate for a sand core, and a binder for shell molds of a phenolic resin etc. is used as an org. binder. These constituting parts are mixed and a sand core is molded. Next, a slurry consisting of an aqueous alkaline soln. prepd. by mixing powdery refractories and a water-soluble thermosetting resin is coated on the surface of this and core, and this is dried and calcined, whereby the 1st coating layer is formed. Next, an aqueous soln. contg. synthetic mica is coated on the surface of the sand core having been formed with this 1st coating layer and is dried, whereby the 2nd coating layer is formed. In the 2nd coating layer, synthetic mica sticks by assuming a laminar state, and this obviates the occurrence of the disadvantage that the molten metal penetrates in the core.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4170580A JPS56139256A (en) | 1980-03-31 | 1980-03-31 | Production of sand core for pressure casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4170580A JPS56139256A (en) | 1980-03-31 | 1980-03-31 | Production of sand core for pressure casting |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS56139256A true JPS56139256A (en) | 1981-10-30 |
| JPS5759013B2 JPS5759013B2 (en) | 1982-12-13 |
Family
ID=12615834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4170580A Granted JPS56139256A (en) | 1980-03-31 | 1980-03-31 | Production of sand core for pressure casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56139256A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329642U (en) * | 1986-08-04 | 1988-02-26 | ||
| JPS63171245A (en) * | 1987-01-08 | 1988-07-15 | Ryobi Ltd | Production of collapsible core |
| JPS63199043A (en) * | 1987-02-13 | 1988-08-17 | Ube Ind Ltd | Manufacturing method of sand core for die casting |
| JPH0293057U (en) * | 1989-01-04 | 1990-07-24 | ||
| US7575039B2 (en) | 2003-10-15 | 2009-08-18 | United Technologies Corporation | Refractory metal core coatings |
-
1980
- 1980-03-31 JP JP4170580A patent/JPS56139256A/en active Granted
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6329642U (en) * | 1986-08-04 | 1988-02-26 | ||
| JPS63171245A (en) * | 1987-01-08 | 1988-07-15 | Ryobi Ltd | Production of collapsible core |
| JPS63199043A (en) * | 1987-02-13 | 1988-08-17 | Ube Ind Ltd | Manufacturing method of sand core for die casting |
| JPH0293057U (en) * | 1989-01-04 | 1990-07-24 | ||
| US7575039B2 (en) | 2003-10-15 | 2009-08-18 | United Technologies Corporation | Refractory metal core coatings |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5759013B2 (en) | 1982-12-13 |
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