JPS5557371A - Check control unit of molten metal in electromagnetic pump type automatic pouring machine - Google Patents

Check control unit of molten metal in electromagnetic pump type automatic pouring machine

Info

Publication number
JPS5557371A
JPS5557371A JP12915178A JP12915178A JPS5557371A JP S5557371 A JPS5557371 A JP S5557371A JP 12915178 A JP12915178 A JP 12915178A JP 12915178 A JP12915178 A JP 12915178A JP S5557371 A JPS5557371 A JP S5557371A
Authority
JP
Japan
Prior art keywords
molten metal
electromagnetic pump
output
decreases
check
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
JP12915178A
Other languages
Japanese (ja)
Other versions
JPS5921264B2 (en
Inventor
Yuzo Takakado
Shigeyuki Shigihara
Satoru Maeno
Takeshi Ii
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.)
Shinko Electric Co Ltd
Original Assignee
Shinko Electric Co 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 Shinko Electric Co Ltd filed Critical Shinko Electric Co Ltd
Priority to JP12915178A priority Critical patent/JPS5921264B2/en
Publication of JPS5557371A publication Critical patent/JPS5557371A/en
Publication of JPS5921264B2 publication Critical patent/JPS5921264B2/en
Expired legal-status Critical Current

Links

Landscapes

  • Casting Support Devices, Ladles, And Melt Control Thereby (AREA)

Abstract

PURPOSE: To let the thrust force of an electromagnetic pump always balance with the static pressure of molten metal and check the same and make the time required for tapping constant by detecting the molten metal level in a vessel.
CONSTITUTION: When the molten metal level in a vessel 1 is maximum, the output of a load cell 4 becomes maximum as well and the output of a check voltage setting function generator 9 becomes maximum as well. As a result, an electromagnetic pump 3 prevents the effluence of molten metal by overcoming the static pressure of the molten metal level owing to the action of an absolute value circuit 11. Next, when the level of the molten metal decreases, the output of the load cell 4 decreases as well and the output of the foregoing function generator 9 decreases as well. The output of the absolute value circuit 11 then decreases, resulting in the decreased check thrust of the electromagnetic pump 3. Hence, the check thrust of the electromagnetic pump 3 is balanced with the static pressure accompanying the molten metal level, whereby reverse flow is prevented. At the same time the prevention of reverse flowing is also accomplished by keeping the molten metal amount in the electromagnetic pump 3 always constant and therefore the time for the molten metal to begin to come out is made always constant at the pouring.
COPYRIGHT: (C)1980,JPO&Japio
JP12915178A 1978-10-19 1978-10-19 Molten metal check control device for electromagnetic pump automatic pouring machine Expired JPS5921264B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12915178A JPS5921264B2 (en) 1978-10-19 1978-10-19 Molten metal check control device for electromagnetic pump automatic pouring machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12915178A JPS5921264B2 (en) 1978-10-19 1978-10-19 Molten metal check control device for electromagnetic pump automatic pouring machine

Publications (2)

Publication Number Publication Date
JPS5557371A true JPS5557371A (en) 1980-04-28
JPS5921264B2 JPS5921264B2 (en) 1984-05-18

Family

ID=15002391

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12915178A Expired JPS5921264B2 (en) 1978-10-19 1978-10-19 Molten metal check control device for electromagnetic pump automatic pouring machine

Country Status (1)

Country Link
JP (1) JPS5921264B2 (en)

Also Published As

Publication number Publication date
JPS5921264B2 (en) 1984-05-18

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