JPS5741835A - Working method of air vent hole in press die - Google Patents
Working method of air vent hole in press dieInfo
- Publication number
- JPS5741835A JPS5741835A JP55116994A JP11699480A JPS5741835A JP S5741835 A JPS5741835 A JP S5741835A JP 55116994 A JP55116994 A JP 55116994A JP 11699480 A JP11699480 A JP 11699480A JP S5741835 A JPS5741835 A JP S5741835A
- Authority
- JP
- Japan
- Prior art keywords
- air vent
- vent pipe
- vent holes
- pipe
- vent hole
- 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
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
PURPOSE: To form air vent holes with reduced manhours and high precision without lengthening the drilling hole, by casting in one body a vent pipe facing to the atmosphere connecting cavity, and by drilling the air vent holes of a prescribed number to connect them after casting.
CONSTITUTION: An air vent pipe 5' of C-shaped steel pipe is inserted in with the molten metal at its connecting part while properly plugging two end openings of the dust preventive bendings 5" and burying them in the core. The air vent pipe 5' is set in the mold and the molten metal is cast in. And after knocking out the mold, the desired number of air vent holes 3, 3... are drilled from a formed surface 4 side at the ridgeline of a drawn stepped part 8 which is a part to easily gather air, and the air vent pipe 5" is connected. The bent part 5" of the air vent pipe is finally opened of its plug so as to connect the formed surface 4 to an inner cavity 7 via the air vent holes 3, 3... and air vent pipe 5.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55116994A JPS5741835A (en) | 1980-08-27 | 1980-08-27 | Working method of air vent hole in press die |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55116994A JPS5741835A (en) | 1980-08-27 | 1980-08-27 | Working method of air vent hole in press die |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5741835A true JPS5741835A (en) | 1982-03-09 |
Family
ID=14700835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55116994A Pending JPS5741835A (en) | 1980-08-27 | 1980-08-27 | Working method of air vent hole in press die |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5741835A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2017017977A1 (en) * | 2015-07-29 | 2017-08-03 | 株式会社東芝 | Electrode for electrolysis, electrode unit, and electrolysis apparatus |
| JP2018069300A (en) * | 2016-10-31 | 2018-05-10 | 株式会社木村鋳造所 | Method of discharging scrap of press die |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153369A (en) * | 1974-05-30 | 1975-12-10 |
-
1980
- 1980-08-27 JP JP55116994A patent/JPS5741835A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50153369A (en) * | 1974-05-30 | 1975-12-10 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPWO2017017977A1 (en) * | 2015-07-29 | 2017-08-03 | 株式会社東芝 | Electrode for electrolysis, electrode unit, and electrolysis apparatus |
| JP2018069300A (en) * | 2016-10-31 | 2018-05-10 | 株式会社木村鋳造所 | Method of discharging scrap of press die |
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