JPS5647263A - Die-casting method - Google Patents
Die-casting methodInfo
- Publication number
- JPS5647263A JPS5647263A JP12339379A JP12339379A JPS5647263A JP S5647263 A JPS5647263 A JP S5647263A JP 12339379 A JP12339379 A JP 12339379A JP 12339379 A JP12339379 A JP 12339379A JP S5647263 A JPS5647263 A JP S5647263A
- Authority
- JP
- Japan
- Prior art keywords
- ejector pin
- molten metal
- vent path
- cavity
- insertion 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.)
- Granted
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
PURPOSE: To prevent the air inclusion into molten metal and run defect in the case of exhausting the air in the cavity and the gas from the molten metal in the vent path formed by an ejector pin insertion hole and an ejector pin, by increasing its opening area in an initial period and exhausting a large amount.
CONSTITUTION: A cavity 4 is formed by an upper die 2 and a lower die 3, and a vent path A formed by an ejector pin insertionhole 8 and an ejector pin 7 is provided. Molten metal is poured into said cavity 4 from below the dies and the ejector pin 7 is moved upward until it contacts the detecting element 14a of molten metal detecting means 14, thence the ejector pin insertion hole 8 is moved to the large- diameter part 8b to increase the vent area of the vent path A and venting is performed. When the molten metal ascends and contacts the detecting element 14a, the ejector pin insertion hole 8 is lowered to the small-diameter part 8a to decrease the opening area of the vent path A, then the molten metal is filled and this completes pouring.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12339379A JPS5647263A (en) | 1979-09-25 | 1979-09-25 | Die-casting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12339379A JPS5647263A (en) | 1979-09-25 | 1979-09-25 | Die-casting method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5647263A true JPS5647263A (en) | 1981-04-28 |
JPS6251702B2 JPS6251702B2 (en) | 1987-10-31 |
Family
ID=14859446
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12339379A Granted JPS5647263A (en) | 1979-09-25 | 1979-09-25 | Die-casting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5647263A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857361U (en) * | 1981-10-12 | 1983-04-18 | トヨタ自動車株式会社 | Air release structure in mold |
JPS5925361U (en) * | 1982-08-06 | 1984-02-16 | トヨタ自動車株式会社 | Air bleed device inside die casting mold |
JPS6256267U (en) * | 1985-09-21 | 1987-04-07 | ||
US4738298A (en) * | 1985-07-04 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting cylinder block blanks made of light alloy |
US4766944A (en) * | 1985-06-21 | 1988-08-30 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting fiber-reinforced metal body |
JP2002307137A (en) * | 2001-04-09 | 2002-10-22 | Ahresty Corp | Low speed and high pressure casting apparatus |
JP2017013117A (en) * | 2015-07-03 | 2017-01-19 | 株式会社日伸電工 | Molding die, molding method and molding product |
JP2017024075A (en) * | 2015-07-24 | 2017-02-02 | 株式会社日伸電工 | Molding die device, vent pin and molding method |
-
1979
- 1979-09-25 JP JP12339379A patent/JPS5647263A/en active Granted
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5857361U (en) * | 1981-10-12 | 1983-04-18 | トヨタ自動車株式会社 | Air release structure in mold |
JPS5925361U (en) * | 1982-08-06 | 1984-02-16 | トヨタ自動車株式会社 | Air bleed device inside die casting mold |
US4766944A (en) * | 1985-06-21 | 1988-08-30 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting fiber-reinforced metal body |
US4738298A (en) * | 1985-07-04 | 1988-04-19 | Honda Giken Kogyo Kabushiki Kaisha | Process for casting cylinder block blanks made of light alloy |
JPS6256267U (en) * | 1985-09-21 | 1987-04-07 | ||
JP2002307137A (en) * | 2001-04-09 | 2002-10-22 | Ahresty Corp | Low speed and high pressure casting apparatus |
JP2017013117A (en) * | 2015-07-03 | 2017-01-19 | 株式会社日伸電工 | Molding die, molding method and molding product |
JP2017024075A (en) * | 2015-07-24 | 2017-02-02 | 株式会社日伸電工 | Molding die device, vent pin and molding method |
Also Published As
Publication number | Publication date |
---|---|
JPS6251702B2 (en) | 1987-10-31 |
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