JPS5568165A - Casting method and mold - Google Patents

Casting method and mold

Info

Publication number
JPS5568165A
JPS5568165A JP14196878A JP14196878A JPS5568165A JP S5568165 A JPS5568165 A JP S5568165A JP 14196878 A JP14196878 A JP 14196878A JP 14196878 A JP14196878 A JP 14196878A JP S5568165 A JPS5568165 A JP S5568165A
Authority
JP
Japan
Prior art keywords
gate
molten metal
cavity
advanced
casting
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
JP14196878A
Other languages
Japanese (ja)
Inventor
Masaaki Tokui
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.)
Toyota Motor Corp
Original Assignee
Toyota Motor Corp
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 Toyota Motor Corp filed Critical Toyota Motor Corp
Priority to JP14196878A priority Critical patent/JPS5568165A/en
Publication of JPS5568165A publication Critical patent/JPS5568165A/en
Pending legal-status Critical Current

Links

Landscapes

  • Molds, Cores, And Manufacturing Methods Thereof (AREA)

Abstract

PURPOSE: To prevent the production of gas holes, etc. and produce the casting of easy cutting of gate portions by pouring molten metal into the cavity in the state where the effective sectional area of a gate is large and letting the molten metal in the cavity solidify in the state where the effective sectional area of the gate is reduced.
CONSTITUTION: A variable gate member 12 is put in a retreat position and with a gate 11 being fully open, a pouring plunger 9 is advanced at low speed and molten metal is injected into a cavity 7 through cross gate 11 and gate 11. After the molten metal has been filled in the cavity 7, the plunger 9 is advanced under pressure to press the molten metal in the cavity 7. Immediate before the solidification of the molten metal of the gate 11 portion completes, a variable gate member 12 is advanced to reduce the effective area of the gate 11. As a result of this, it becomes possible to push the molten metal of the gate 11 portion into the cavity 7, whereby the sound casting of extremely less casting defectes such as gas holes, solidification shrinkage cavities, etc. is obtained.
COPYRIGHT: (C)1980,JPO&Japio
JP14196878A 1978-11-17 1978-11-17 Casting method and mold Pending JPS5568165A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14196878A JPS5568165A (en) 1978-11-17 1978-11-17 Casting method and mold

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14196878A JPS5568165A (en) 1978-11-17 1978-11-17 Casting method and mold

Publications (1)

Publication Number Publication Date
JPS5568165A true JPS5568165A (en) 1980-05-22

Family

ID=15304307

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14196878A Pending JPS5568165A (en) 1978-11-17 1978-11-17 Casting method and mold

Country Status (1)

Country Link
JP (1) JPS5568165A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122657A (en) * 1980-03-03 1981-09-26 Asmo Co Ltd Middle-and high-pressure two-stage injection casting method and casting machine
JPS591058A (en) * 1982-06-24 1984-01-06 Fuso Light Alloys Co Ltd Die casting method
US4860818A (en) * 1987-09-21 1989-08-29 Ube Industries, Ltd. Die casting apparatus
JPH03294056A (en) * 1990-04-12 1991-12-25 Hitachi Ltd Injection molding die and injection molding method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS56122657A (en) * 1980-03-03 1981-09-26 Asmo Co Ltd Middle-and high-pressure two-stage injection casting method and casting machine
JPS591058A (en) * 1982-06-24 1984-01-06 Fuso Light Alloys Co Ltd Die casting method
US4860818A (en) * 1987-09-21 1989-08-29 Ube Industries, Ltd. Die casting apparatus
JPH03294056A (en) * 1990-04-12 1991-12-25 Hitachi Ltd Injection molding die and injection molding method

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