JPS561244A - Mold - Google Patents
MoldInfo
- Publication number
- JPS561244A JPS561244A JP7467779A JP7467779A JPS561244A JP S561244 A JPS561244 A JP S561244A JP 7467779 A JP7467779 A JP 7467779A JP 7467779 A JP7467779 A JP 7467779A JP S561244 A JPS561244 A JP S561244A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- sprue
- molten metal
- dimensional net
- freezing
- 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
Abstract
PURPOSE: To make possible the removal of the mold and achieve higher working efficiency without waiting for the freezing of the molten metal at the sprue after pouring by forming the sprue in the continuous pores of three-dimensional net form in the mold in a pressure casting method.
CONSTITUTION: The foamed polyurethane resin 2 having the shape of three-dimensional net form having continuous pores is affixed to a pattern 1 for casting. A molding flask 3 is then installed around this and gypsum slurry 4 is poured into the molding flask 3. After it has set, the pattern 1 is removed and the entire part of the mold is heated to about 600°C to let the foregoing resin 2 evaporate and burn away, thereby forming the mold 6 formed with the continuous pores of three-dimensional net-form. This mold 6 is suited for a low-pressure casting method. If the molten metal 7 in a crucible is filled in the mold cavity through the sprue 2', the mold may be removed and another mold may be installed without waiting for the freezing depending upon the size of the viscous resistance of the foregoing pores 2' with respect to the molten metal. This eliminates the laborious experiment and number of steps required for conventional freezing decision and permits the improvement in working efficiency.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7467779A JPS561244A (en) | 1979-06-15 | 1979-06-15 | Mold |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7467779A JPS561244A (en) | 1979-06-15 | 1979-06-15 | Mold |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS561244A true JPS561244A (en) | 1981-01-08 |
Family
ID=13554090
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7467779A Pending JPS561244A (en) | 1979-06-15 | 1979-06-15 | Mold |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS561244A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4693292A (en) * | 1984-06-02 | 1987-09-15 | Cosworth Research And Development Limited | Casting of metal articles |
JPH01149803U (en) * | 1988-04-08 | 1989-10-17 | ||
EP1897637A1 (en) * | 2006-09-05 | 2008-03-12 | Bridgestone Corporation | Low-pressure production of cast article |
-
1979
- 1979-06-15 JP JP7467779A patent/JPS561244A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4693292A (en) * | 1984-06-02 | 1987-09-15 | Cosworth Research And Development Limited | Casting of metal articles |
JPH01149803U (en) * | 1988-04-08 | 1989-10-17 | ||
EP1897637A1 (en) * | 2006-09-05 | 2008-03-12 | Bridgestone Corporation | Low-pressure production of cast article |
US7753102B2 (en) | 2006-09-05 | 2010-07-13 | Bridgestone Corporation | Low-pressure production of cast article |
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