JPS55117550A - Injection part construction of die-casting device - Google Patents
Injection part construction of die-casting deviceInfo
- Publication number
- JPS55117550A JPS55117550A JP2406979A JP2406979A JPS55117550A JP S55117550 A JPS55117550 A JP S55117550A JP 2406979 A JP2406979 A JP 2406979A JP 2406979 A JP2406979 A JP 2406979A JP S55117550 A JPS55117550 A JP S55117550A
- Authority
- JP
- Japan
- Prior art keywords
- molten metal
- die
- well cavity
- solidification film
- plunger tip
- 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
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
PURPOSE: To prevent the occurrence of internal defects such as shrinkage cavities and pinholes by forming a well cavity part in the injection advance limit portion of the plunger tip.
CONSTITUTION: A fixed amount of molten metal 16 is poured into an injection sleeve 14 and a moving die 11 is moved to the position of the die clamping tangent l. Next, a plunger tip 15 is advanced by a plunger rod 18 to fill the molten metal 16 into a die cavity 13 at a low speed. The molten metal 16 injected into the injection sleeve 14 makes contact with the inside wall and immediately begins to solidify, thereby forming an initial solidification film 16a. This solidification film 16a is subsequently broken as the plunger tip 15 advances and the tip 15 advances to the end of the sleeve 14. By its succeeding advance, the deposit portion of the solidification film 16a is sent into the well cavity 19 and therefore the resistance is considerably reduced. The final boosting for tightly filling the molten metal 16 in the final is accomplished by the unsolidified molten metal which is in a relatively high-temperature state in the central part in the well cavity 19.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406979A JPS55117550A (en) | 1979-03-03 | 1979-03-03 | Injection part construction of die-casting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2406979A JPS55117550A (en) | 1979-03-03 | 1979-03-03 | Injection part construction of die-casting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS55117550A true JPS55117550A (en) | 1980-09-09 |
Family
ID=12128139
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2406979A Pending JPS55117550A (en) | 1979-03-03 | 1979-03-03 | Injection part construction of die-casting device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55117550A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63192015U (en) * | 1987-05-29 | 1988-12-12 | ||
| JPH0640416U (en) * | 1992-10-29 | 1994-05-31 | シーケーディ株式会社 | Pneumatic cylinder sealing device |
| JP2007239385A (en) * | 2006-03-10 | 2007-09-20 | Yamaha Corp | Pool setting structure |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4812312B1 (en) * | 1969-02-20 | 1973-04-19 | ||
| JPS4850938A (en) * | 1971-11-01 | 1973-07-18 |
-
1979
- 1979-03-03 JP JP2406979A patent/JPS55117550A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4812312B1 (en) * | 1969-02-20 | 1973-04-19 | ||
| JPS4850938A (en) * | 1971-11-01 | 1973-07-18 |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63192015U (en) * | 1987-05-29 | 1988-12-12 | ||
| JPH054986Y2 (en) * | 1987-05-29 | 1993-02-09 | ||
| JPH0640416U (en) * | 1992-10-29 | 1994-05-31 | シーケーディ株式会社 | Pneumatic cylinder sealing device |
| JP2007239385A (en) * | 2006-03-10 | 2007-09-20 | Yamaha Corp | Pool setting structure |
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