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 machineInfo
- 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
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
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) |
-
1978
- 1978-10-19 JP JP12915178A patent/JPS5921264B2/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
JPS5921264B2 (en) | 1984-05-18 |
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