JPS56119659A - High-pressure solidifying casting device - Google Patents

High-pressure solidifying casting device

Info

Publication number
JPS56119659A
JPS56119659A JP2051380A JP2051380A JPS56119659A JP S56119659 A JPS56119659 A JP S56119659A JP 2051380 A JP2051380 A JP 2051380A JP 2051380 A JP2051380 A JP 2051380A JP S56119659 A JPS56119659 A JP S56119659A
Authority
JP
Japan
Prior art keywords
pressure
injection
plunger
molten metal
control device
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
JP2051380A
Other languages
Japanese (ja)
Inventor
Norihisa Fujii
Kazuo Honma
Masakatsu Fujie
Katsutoshi Nozawa
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP2051380A priority Critical patent/JPS56119659A/en
Publication of JPS56119659A publication Critical patent/JPS56119659A/en
Pending legal-status Critical Current

Links

Landscapes

  • Injection Moulding Of Plastics Or The Like (AREA)

Abstract

PURPOSE: To prevent the formation of casting defects through applying proper injection speed and pressure to molten metal by installing a pressure control valve operated by a control device to an injection cylinder provided with a variable displacement type pump, in high-pressure casting of molten metal.
CONSTITUTION: A variable displacement type pump 5 is connected via a changeover valve 6 to an injection cylinder 1 having an injection plunger 2 which injects molten metal under high pressure into dies. Also, a pressure control valve 9 and a control device 4 such as computer are installed. The pump 5 is driven to supply pressurized oil via the vlave 6 into the cylinder 1, which in turn pushes out the plunger 2, thereby forcing the molten metal under high pressure into the dies. The injection position of the plunger 2 is detected at this time with a position detector 3, and the optimum injection pressure and speed are operated by the signal B thereof and casting set condition signal A in the control device 4. The operated values C, D are inputted to the valve 9 and the pump 5, whereby both are controlled so that the plunger 2 is controlled always to the proper injection speed and pressure.
COPYRIGHT: (C)1981,JPO&Japio
JP2051380A 1980-02-22 1980-02-22 High-pressure solidifying casting device Pending JPS56119659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2051380A JPS56119659A (en) 1980-02-22 1980-02-22 High-pressure solidifying casting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2051380A JPS56119659A (en) 1980-02-22 1980-02-22 High-pressure solidifying casting device

Publications (1)

Publication Number Publication Date
JPS56119659A true JPS56119659A (en) 1981-09-19

Family

ID=12029231

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2051380A Pending JPS56119659A (en) 1980-02-22 1980-02-22 High-pressure solidifying casting device

Country Status (1)

Country Link
JP (1) JPS56119659A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212850A (en) * 1982-06-03 1983-12-10 Toshiba Mach Co Ltd Method for regulating injection condition automatically
JPH01197055A (en) * 1988-01-30 1989-08-08 Toshiba Mach Co Ltd Device for controlling injecting condition in die casting machine
EP0847815A1 (en) * 1996-12-14 1998-06-17 Sms Schloemann-Siemag Aktiengesellschaft Method and device for rolling billets

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58212850A (en) * 1982-06-03 1983-12-10 Toshiba Mach Co Ltd Method for regulating injection condition automatically
JPH01197055A (en) * 1988-01-30 1989-08-08 Toshiba Mach Co Ltd Device for controlling injecting condition in die casting machine
JPH0341262B2 (en) * 1988-01-30 1991-06-21
EP0847815A1 (en) * 1996-12-14 1998-06-17 Sms Schloemann-Siemag Aktiengesellschaft Method and device for rolling billets
US5992001A (en) * 1996-12-14 1999-11-30 Sms Schloemann-Siemag Ag Method and apparatus for connecting billets

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