JPS55130368A - Nozzle opening control unit - Google Patents
Nozzle opening control unitInfo
- Publication number
- JPS55130368A JPS55130368A JP3780379A JP3780379A JPS55130368A JP S55130368 A JPS55130368 A JP S55130368A JP 3780379 A JP3780379 A JP 3780379A JP 3780379 A JP3780379 A JP 3780379A JP S55130368 A JPS55130368 A JP S55130368A
- Authority
- JP
- Japan
- Prior art keywords
- nozzle
- piston
- fed
- opening
- sliding
- 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
- Continuous Casting (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
Abstract
PURPOSE: To accurately control nozzle opening to the set opening by substituting the sliding-nozzle-actuating servo valve provided to the bottom of a ladle with a selective valve of less troubles and making the actuator of a hydraulic cylinder one.
CONSTITUTION: The oil in an oil tank 25 is fed by a pump 20 to a flow control valve 19 with pressure compensation and a solenoid valve 18. The both of these control integrally the flow rate of the oil to be supplied from the pump 20 to a cylinder 14, thereby driving a piston 15 at a low or high speed. The piston 15 performs opening and closing of the nozzle by the slide piece 12 of the sliding nozzle in the lower part of a ladle 11 by means of its rod 13. At this time, the position of the piston 15 in the cylinder 14 is detected by the sliding resistance 16 mounted the rod 13. This detected resistance value is converted to a voltage signal by a resistance voltage converter 21 and this signal is fed to a 3-position controller 23 and 2-position regulator 24. On the other hand, the position set voltage signal of the slide 12 is fed by a nozzle opening setter 22W23, 24 which then move the piston 15 at a high speed when the difference between the detected value and set value is large, thereby improving the stopping accuracy to the set position.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3780379A JPS5939227B2 (en) | 1979-03-30 | 1979-03-30 | Nozzle opening control device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3780379A JPS5939227B2 (en) | 1979-03-30 | 1979-03-30 | Nozzle opening control device |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS55130368A true JPS55130368A (en) | 1980-10-09 |
JPS5939227B2 JPS5939227B2 (en) | 1984-09-21 |
Family
ID=12507661
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3780379A Expired JPS5939227B2 (en) | 1979-03-30 | 1979-03-30 | Nozzle opening control device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5939227B2 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6083760A (en) * | 1983-10-12 | 1985-05-13 | Sumitomo Metal Ind Ltd | Device for controlling level of molten metal surface for continuous casting |
JPS6156766A (en) * | 1984-08-24 | 1986-03-22 | Sumitomo Metal Ind Ltd | Pouring method of molten metal |
KR100840275B1 (en) * | 2001-11-14 | 2008-06-20 | 주식회사 포스코 | an apparatus to check close of cassette to a ladle |
KR101439894B1 (en) * | 2012-11-29 | 2014-09-12 | 주식회사 포스코 | Ladle apparatus for casting different types of steel |
-
1979
- 1979-03-30 JP JP3780379A patent/JPS5939227B2/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6083760A (en) * | 1983-10-12 | 1985-05-13 | Sumitomo Metal Ind Ltd | Device for controlling level of molten metal surface for continuous casting |
JPH0431780B2 (en) * | 1983-10-12 | 1992-05-27 | ||
JPS6156766A (en) * | 1984-08-24 | 1986-03-22 | Sumitomo Metal Ind Ltd | Pouring method of molten metal |
JPH0119993B2 (en) * | 1984-08-24 | 1989-04-13 | Sumitomo Metal Ind | |
KR100840275B1 (en) * | 2001-11-14 | 2008-06-20 | 주식회사 포스코 | an apparatus to check close of cassette to a ladle |
KR101439894B1 (en) * | 2012-11-29 | 2014-09-12 | 주식회사 포스코 | Ladle apparatus for casting different types of steel |
Also Published As
Publication number | Publication date |
---|---|
JPS5939227B2 (en) | 1984-09-21 |
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