JPS57168746A - Pattern for casting by air bag system - Google Patents
Pattern for casting by air bag systemInfo
- Publication number
- JPS57168746A JPS57168746A JP5483381A JP5483381A JPS57168746A JP S57168746 A JPS57168746 A JP S57168746A JP 5483381 A JP5483381 A JP 5483381A JP 5483381 A JP5483381 A JP 5483381A JP S57168746 A JPS57168746 A JP S57168746A
- Authority
- JP
- Japan
- Prior art keywords
- pattern
- core
- rapping
- air bag
- bag
- 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
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
- B22C7/005—Adjustable, sectional, expandable or flexible patterns
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE:To provide a titled pattern for casting which simplifies the rapping of the pattern by providing insert members which are freely retractable to the inner side of the pattern to plural shell pieces of the pattern and an air bag which is freely expandable and is lined internally to one body on the inside surface of the pattern. CONSTITUTION:While insert members 2, 2... are held interposed in the prescribed positions between pattern shell pieces 1a-1d, an air bag 8 is pressurized to expand to a prescribed shape and size, whereby a hollow pattern 1 is made. Next, this pattern 1 is positioned and set immovably in a drag and a flask is assembled, then, this is used for molding operations of a conventional method, whereby a master mold and a core are molded on the outside circumferential surface of the pattern 1 and the inside circumferential surface of a core 7. In the stage of rapping the pattern upon hardening of the master mold and the core, the inside of the bag 8 is evacuated down to atmospheric pressure, after which the respective members 2 are retracted into the recesses 10, 10... on the inner side of the mold 1, and are removed. Next, the inside of the bag 8 is sucked to negative pressure to reduce the shell pieces in a tightly contact state in the direction of the core 7. In this state, the pattern 1 together with the core 7 is pulled out upward, and this completes the rapping work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5483381A JPS57168746A (en) | 1981-04-10 | 1981-04-10 | Pattern for casting by air bag system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5483381A JPS57168746A (en) | 1981-04-10 | 1981-04-10 | Pattern for casting by air bag system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57168746A true JPS57168746A (en) | 1982-10-18 |
Family
ID=12981634
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5483381A Pending JPS57168746A (en) | 1981-04-10 | 1981-04-10 | Pattern for casting by air bag system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57168746A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0730922A1 (en) * | 1995-03-09 | 1996-09-11 | Passavant-Werke Ag | Method for producing castings which are later connected to concrete |
| CN106077462A (en) * | 2016-08-25 | 2016-11-09 | 共享装备股份有限公司 | Mould with reinforcing plate structure |
| US10774755B2 (en) | 2016-04-05 | 2020-09-15 | Befinal Gmbh | Fuel exchange system and fuel supply system for fuel systems |
-
1981
- 1981-04-10 JP JP5483381A patent/JPS57168746A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0730922A1 (en) * | 1995-03-09 | 1996-09-11 | Passavant-Werke Ag | Method for producing castings which are later connected to concrete |
| US10774755B2 (en) | 2016-04-05 | 2020-09-15 | Befinal Gmbh | Fuel exchange system and fuel supply system for fuel systems |
| US11255277B2 (en) | 2016-04-05 | 2022-02-22 | Befinal Gmbh | Fuel exchange system and fuel supply system for fuel systems |
| CN106077462A (en) * | 2016-08-25 | 2016-11-09 | 共享装备股份有限公司 | Mould with reinforcing plate structure |
| CN106077462B (en) * | 2016-08-25 | 2018-06-22 | 共享装备股份有限公司 | Mold with reinforcing plate structure |
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