JPS5785638A - Casting method for product having hollow tubular part - Google Patents
Casting method for product having hollow tubular partInfo
- Publication number
- JPS5785638A JPS5785638A JP15880380A JP15880380A JPS5785638A JP S5785638 A JPS5785638 A JP S5785638A JP 15880380 A JP15880380 A JP 15880380A JP 15880380 A JP15880380 A JP 15880380A JP S5785638 A JPS5785638 A JP S5785638A
- Authority
- JP
- Japan
- Prior art keywords
- covering material
- hollow tube
- hollow
- core grid
- casting
- 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 easily remove a covering material, by using a hollow core grid whose outer periphery is covered with the prescribed covering material and disintegrating the covering material after a molten metal is poured into the mold by means of the difference in temperatures of the core grid and the casting after a cold fluid is passed through the hollow section.
CONSTITUTION: A hollow tube 8 made of metal is formed by winding up a wire 13 spirally, and the outer periphery of the tube 8 is covered with a covering material 9 composed of a low heat conductivity brittle material, such as ceramics, etc. The hollow tube 8 is used as a core grid and castings are made after the hollow tube 8 is installed throughout the mold. After the casting is completed, a low temperature fluid, such as water, air, etc., is poured into said hollow tube 8 and a large temperature difference is generated between an inner wall 11 and an outer wall 12 of the covering material 9, and then, the covering material 9 is self-broken by means of strains generated by the internal stress due to the temperature difference. After the covering material 9 is broken, said hollow tube 8 is pulled out and, at the same time, the covering material 9 is removed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15880380A JPS591496B2 (en) | 1980-11-13 | 1980-11-13 | Method for casting a casting having a hollow tubular part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15880380A JPS591496B2 (en) | 1980-11-13 | 1980-11-13 | Method for casting a casting having a hollow tubular part |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5785638A true JPS5785638A (en) | 1982-05-28 |
| JPS591496B2 JPS591496B2 (en) | 1984-01-12 |
Family
ID=15679689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15880380A Expired JPS591496B2 (en) | 1980-11-13 | 1980-11-13 | Method for casting a casting having a hollow tubular part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS591496B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994552A (en) * | 1982-11-19 | 1984-05-31 | Kobe Steel Ltd | Casting method of non-ferrous metallic casting |
| JPS6061160A (en) * | 1983-09-12 | 1985-04-08 | Sankyo Oiruresu Kogyo Kk | Casting method of hollow pipe-shaped part casting by using flexible pipe coated with carbon fiber |
| US20150096711A1 (en) * | 2013-10-07 | 2015-04-09 | Sikorsky Aircraft | Removable passage mandrel |
| CN104741545A (en) * | 2015-03-10 | 2015-07-01 | 镇江银海铝业有限公司 | Rhombus perforated aluminum or aluminum alloy plate and manufacture method thereof |
| EP2759359A3 (en) * | 2013-01-23 | 2018-01-03 | Sikorsky Aircraft Corporation | Quasi self-destructive core for investment casting |
| CN108941515A (en) * | 2018-09-13 | 2018-12-07 | 南通华东油压科技有限公司 | A kind of casting method of the mechanical-hydraulic valve body with seamless steel pipe |
-
1980
- 1980-11-13 JP JP15880380A patent/JPS591496B2/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5994552A (en) * | 1982-11-19 | 1984-05-31 | Kobe Steel Ltd | Casting method of non-ferrous metallic casting |
| JPS6061160A (en) * | 1983-09-12 | 1985-04-08 | Sankyo Oiruresu Kogyo Kk | Casting method of hollow pipe-shaped part casting by using flexible pipe coated with carbon fiber |
| EP2759359A3 (en) * | 2013-01-23 | 2018-01-03 | Sikorsky Aircraft Corporation | Quasi self-destructive core for investment casting |
| US20150096711A1 (en) * | 2013-10-07 | 2015-04-09 | Sikorsky Aircraft | Removable passage mandrel |
| US9192985B2 (en) * | 2013-10-07 | 2015-11-24 | Sikorsky Aircraft Corporation | Removable passage mandrel |
| CN104741545A (en) * | 2015-03-10 | 2015-07-01 | 镇江银海铝业有限公司 | Rhombus perforated aluminum or aluminum alloy plate and manufacture method thereof |
| CN108941515A (en) * | 2018-09-13 | 2018-12-07 | 南通华东油压科技有限公司 | A kind of casting method of the mechanical-hydraulic valve body with seamless steel pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS591496B2 (en) | 1984-01-12 |
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