JPS6478662A - Injection molding machine - Google Patents
Injection molding machineInfo
- Publication number
- JPS6478662A JPS6478662A JP23663687A JP23663687A JPS6478662A JP S6478662 A JPS6478662 A JP S6478662A JP 23663687 A JP23663687 A JP 23663687A JP 23663687 A JP23663687 A JP 23663687A JP S6478662 A JPS6478662 A JP S6478662A
- Authority
- JP
- Japan
- Prior art keywords
- cavity
- molten metal
- tank
- gas
- air
- 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 development of defect, such as cold shut, double skin, enclosing of gas, by arranging a gas pressurizing device for pressing molten metal surface communicating to upper part of cavity in die apparatus. CONSTITUTION:The gas pressurizing device communicating to the upper part of the cavity 26 in the die apparatus is arranged so as to be able to cast while pressurizing in the cavity 26. By this method, the molten metal surface is ascended at almost equal speed in thin part and also in thick part of the casting and by reaching the molten metal to both upper ends at almost same time, the defect of cold shut, etc., can be prevented. At the time of casting, the molten metal A is introduced into the cavity 26, but preceded this, the pressurized air is beforehand introduced into the cavity 26. For the purpose of this, air is accumulated into an accumulating tank 154 and on the their hand, vacuum tank 206 is held to vacuum by a vacuum pump 226 and a valve body 96 is apart from a valve seat 102. At the same time of starting introduction of the molten metal A, the pressure in the tank 154 is transferred into the cavity 26 through gas passages 144, 110. The air in the cavity 26 is exhausted to the tank 206, and the pouring is executed and the filling of the molten metal completes.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23663687A JPS6478662A (en) | 1987-09-21 | 1987-09-21 | Injection molding machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP23663687A JPS6478662A (en) | 1987-09-21 | 1987-09-21 | Injection molding machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6478662A true JPS6478662A (en) | 1989-03-24 |
Family
ID=17003562
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP23663687A Pending JPS6478662A (en) | 1987-09-21 | 1987-09-21 | Injection molding machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6478662A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0802840A1 (en) * | 1995-01-10 | 1997-10-29 | Milko G. Guergov | Method of injecting molten metal into a mold cavity |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129817A (en) * | 1975-05-07 | 1976-11-11 | Nissan Motor | Metal mould casting apparatus with pressure device |
JPS57127569A (en) * | 1981-09-12 | 1982-08-07 | Toshiba Mach Co Ltd | Method and device for die casting |
JPS5823559A (en) * | 1981-08-06 | 1983-02-12 | Ube Ind Ltd | Non-porous vacuum die casting method |
JPS5851784A (en) * | 1981-09-19 | 1983-03-26 | Kuniomi Oguchi | Starter for permanent magnet synchronous motor |
JPS5987963A (en) * | 1982-11-10 | 1984-05-21 | インステイチユ−ツ・ポ・メタロツナニエ・アイ・テクノロジア・ナ・メタリテ | Heart and lung piston method for casting metal and other material and device used for its execution |
-
1987
- 1987-09-21 JP JP23663687A patent/JPS6478662A/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS51129817A (en) * | 1975-05-07 | 1976-11-11 | Nissan Motor | Metal mould casting apparatus with pressure device |
JPS5823559A (en) * | 1981-08-06 | 1983-02-12 | Ube Ind Ltd | Non-porous vacuum die casting method |
JPS57127569A (en) * | 1981-09-12 | 1982-08-07 | Toshiba Mach Co Ltd | Method and device for die casting |
JPS5851784A (en) * | 1981-09-19 | 1983-03-26 | Kuniomi Oguchi | Starter for permanent magnet synchronous motor |
JPS5987963A (en) * | 1982-11-10 | 1984-05-21 | インステイチユ−ツ・ポ・メタロツナニエ・アイ・テクノロジア・ナ・メタリテ | Heart and lung piston method for casting metal and other material and device used for its execution |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0802840A1 (en) * | 1995-01-10 | 1997-10-29 | Milko G. Guergov | Method of injecting molten metal into a mold cavity |
EP0802840A4 (en) * | 1995-01-10 | 1999-01-13 | Milko G Guergov | Method of injecting molten metal into a mold cavity |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS6440162A (en) | Metal casting method and device opposing gravity by removing air | |
JPS558382A (en) | Diecast method | |
JPS6211942B2 (en) | ||
EP0356624A3 (en) | Vacuum countergravity casting apparatus and method with backflow valve | |
JPS5725276A (en) | Method for casting of press die | |
JPS6478662A (en) | Injection molding machine | |
GB1496185A (en) | Low-pressure casting installation | |
JPS56144855A (en) | Method and device for two-stage die casting under reduced pressure | |
JPH0563264B2 (en) | ||
JPS5750266A (en) | Pressure casting method for casting | |
JP2933255B2 (en) | Suction differential pressure casting method | |
JPS6431562A (en) | Vacuum die-casting apparatus | |
JPS5573443A (en) | Gas venting method of casting mold and gas vent member | |
JPS571558A (en) | Poreless vacuum die casting method | |
JPH1015654A (en) | Method for casting cast product | |
JPS5581046A (en) | Method and device for continuous casting of metal | |
JPS6434563A (en) | Low pressure casting machine | |
DE3774105D1 (en) | METHOD AND DEVICE FOR PRODUCING FIBER REINFORCED METAL PARTS. | |
JP3236508B2 (en) | Metal melt supply device | |
JPS5699063A (en) | Die-casting method for blade-shaped rotatable body | |
JPS5647259A (en) | Method and device for venting in die | |
JPS5725272A (en) | Method and apparatus for controlling injection pressure of injection forming machine | |
JPH032369Y2 (en) | ||
JPS57170734A (en) | Method and apparatus for molding rim urethane in center injection system | |
JPS56136270A (en) | Casting device |