JPS6478662A - Injection molding machine - Google Patents

Injection molding machine

Info

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
Application number
JP23663687A
Other languages
Japanese (ja)
Inventor
Sadayuki Dannoura
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ube Corp
Original Assignee
Ube Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Ube Industries Ltd filed Critical Ube Industries Ltd
Priority to JP23663687A priority Critical patent/JPS6478662A/en
Publication of JPS6478662A publication Critical patent/JPS6478662A/en
Pending legal-status Critical Current

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.
JP23663687A 1987-09-21 1987-09-21 Injection molding machine Pending JPS6478662A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

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