JPS5594755A - Mold of piston for internal combustion engine - Google Patents
Mold of piston for internal combustion engineInfo
- Publication number
- JPS5594755A JPS5594755A JP239079A JP239079A JPS5594755A JP S5594755 A JPS5594755 A JP S5594755A JP 239079 A JP239079 A JP 239079A JP 239079 A JP239079 A JP 239079A JP S5594755 A JPS5594755 A JP S5594755A
- Authority
- JP
- Japan
- Prior art keywords
- core
- mold
- main core
- hole
- dies
- 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: The mold which comprises fitting the main core and sub-core of the specific shapes into the two-split outer sides having a circular space in section and which is capable of simultaneously casting the piston provided with insulation slits of a fine width between pin-boss parts and skirt part.
CONSTITUTION: A main core 5 is inserted into the space S of two-split outer dies 1 and its pin-boss forming recesses 11 are opposed to the through-hole 3 of the outer dies. Thence, a sub-core 13 is inserted into the dies through the through- hole of the outer dies and the end face 15 of its partition part 14 is contacted to the convex edge 12 of the main core. At the same time the positioning pin 17 provided at the end of the pinhole-forming protruding part 16 is engaged in the hole 18 of the main core. If molten metal is poured into the cavity of the mold assembled in this way, a casting 22 is formed and the piston provided with U-form slits S4 of a fine width and pinhole 23 between the head part 20 and skirt part 21 is readily obtained.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP239079A JPS594222B2 (en) | 1979-01-13 | 1979-01-13 | Mold for internal combustion engine pistons |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP239079A JPS594222B2 (en) | 1979-01-13 | 1979-01-13 | Mold for internal combustion engine pistons |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5594755A true JPS5594755A (en) | 1980-07-18 |
JPS594222B2 JPS594222B2 (en) | 1984-01-28 |
Family
ID=11527898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP239079A Expired JPS594222B2 (en) | 1979-01-13 | 1979-01-13 | Mold for internal combustion engine pistons |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS594222B2 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01272699A (en) * | 1988-04-25 | 1989-10-31 | Lion Corp | Bleaching agent composition |
-
1979
- 1979-01-13 JP JP239079A patent/JPS594222B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS594222B2 (en) | 1984-01-28 |
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