JPS57202957A - Controlling method for pressurizing speed in pan - Google Patents

Controlling method for pressurizing speed in pan

Info

Publication number
JPS57202957A
JPS57202957A JP8694881A JP8694881A JPS57202957A JP S57202957 A JPS57202957 A JP S57202957A JP 8694881 A JP8694881 A JP 8694881A JP 8694881 A JP8694881 A JP 8694881A JP S57202957 A JPS57202957 A JP S57202957A
Authority
JP
Japan
Prior art keywords
pan
pressure
interface
pressurizing
microcomputer
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.)
Granted
Application number
JP8694881A
Other languages
Japanese (ja)
Other versions
JPH02149B2 (en
Inventor
Sanetsugu Onishi
Tatsushi Aizawa
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 JP8694881A priority Critical patent/JPS57202957A/en
Publication of JPS57202957A publication Critical patent/JPS57202957A/en
Publication of JPH02149B2 publication Critical patent/JPH02149B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D18/00—Pressure casting; Vacuum casting
    • B22D18/08—Controlling, supervising, e.g. for safety reasons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)

Abstract

PURPOSE:To cast molten metal into a mold at a preset casting speed by controlling the pressurizing mechanism for a pan in conformity with the pressurizing conditions stored in a microcomputer through an interface while detecting the pressure in the pan. CONSTITUTION:In a low pressure casting device of casting molten metal 5 into mold (not shown) cavities through a stalk 10 by pressurizing the inside of a pan 4, the pressurizing conditions in the pan 4 stored in a microcomputer 20 are inputted to an interface 19. A servomotor 17 is driven by a driving circuit 18 in accordance with the command of the interface 19, and further the piston 12a of a cylinder 12 is operated by a speed reducer 16, whereby pressure air is supplied through a pressure air pipe 6 into the pan 4. The pressure in the pan 4 is detected by a pressure sensor 21, and is fed back to the interface 19, where it is compared and operated with the pressure instructed by the microcomputer. In accordance with the results thereof, the piston 12a is operated, whereby the pressure in the pan 4 is controlled.
JP8694881A 1981-06-08 1981-06-08 Controlling method for pressurizing speed in pan Granted JPS57202957A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8694881A JPS57202957A (en) 1981-06-08 1981-06-08 Controlling method for pressurizing speed in pan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8694881A JPS57202957A (en) 1981-06-08 1981-06-08 Controlling method for pressurizing speed in pan

Publications (2)

Publication Number Publication Date
JPS57202957A true JPS57202957A (en) 1982-12-13
JPH02149B2 JPH02149B2 (en) 1990-01-05

Family

ID=13901087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8694881A Granted JPS57202957A (en) 1981-06-08 1981-06-08 Controlling method for pressurizing speed in pan

Country Status (1)

Country Link
JP (1) JPS57202957A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253158A (en) * 1985-05-04 1986-11-11 Sintokogio Ltd Low-pressure casting device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946526A (en) * 1972-09-11 1974-05-04

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4946526A (en) * 1972-09-11 1974-05-04

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61253158A (en) * 1985-05-04 1986-11-11 Sintokogio Ltd Low-pressure casting device
JPH0416260B2 (en) * 1985-05-04 1992-03-23 Sintokogio Ltd

Also Published As

Publication number Publication date
JPH02149B2 (en) 1990-01-05

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