JPS57135321A - Measuring and controlling device of molten metallic surface level in continuous casting - Google Patents
Measuring and controlling device of molten metallic surface level in continuous castingInfo
- Publication number
- JPS57135321A JPS57135321A JP56019829A JP1982981A JPS57135321A JP S57135321 A JPS57135321 A JP S57135321A JP 56019829 A JP56019829 A JP 56019829A JP 1982981 A JP1982981 A JP 1982981A JP S57135321 A JPS57135321 A JP S57135321A
- Authority
- JP
- Japan
- Prior art keywords
- surface level
- metallic surface
- molten metallic
- molten
- control signal
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/26—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields
- G01F23/263—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring variations of capacity or inductance of capacitors or inductors arising from the presence of liquid or fluent solid material in the electric or electromagnetic fields by measuring variations in capacitance of capacitors
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electromagnetism (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Continuous Casting (AREA)
- Control Of Non-Electrical Variables (AREA)
Abstract
PURPOSE:To secure a constant molten surface level, and also to execute an automatic injection start in the initial stage of casting, by controlling a molten metallic surface level in a mold by use of a capacity system molten metallic surface level gauge. CONSTITUTION:An electrostatic capacity between molten metallic surfaces in a mold 2 is detected by a capacity system detector 16 of a molten metallic surface level measuring device, is converted to a signal proportional to a distance by a converter 18, and is provided as a molten metallic surface level l to a controller 20 and a recorder 19. Also, to the controller 20, a target molten metallic surface level lS from a setting device 21, and an auxiliary control signal from a computer 24 are provided. The controller 20 applies a control signal according to a deviation between the levels lS and l to an operator 22. The computer 24 executes a model operation by a drawing speed signal and a tundish weight signal proportional to capacity of a molten metal 4 in a tundish 1, and generates an auxiliary control signal. The operator 22 operates an SN switch 23 in accordance with a control signal, controls the quantity of injection of a metal 4, and keeps a molten metallic surface level in the mold 2 constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019829A JPS57135321A (en) | 1981-02-13 | 1981-02-13 | Measuring and controlling device of molten metallic surface level in continuous casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56019829A JPS57135321A (en) | 1981-02-13 | 1981-02-13 | Measuring and controlling device of molten metallic surface level in continuous casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57135321A true JPS57135321A (en) | 1982-08-20 |
Family
ID=12010176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56019829A Pending JPS57135321A (en) | 1981-02-13 | 1981-02-13 | Measuring and controlling device of molten metallic surface level in continuous casting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57135321A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150081U (en) * | 1985-03-08 | 1986-09-17 | ||
| JPH0419693U (en) * | 1990-06-05 | 1992-02-19 | ||
| JPH0419694U (en) * | 1990-06-05 | 1992-02-19 | ||
| JPH0430296U (en) * | 1990-07-07 | 1992-03-11 |
-
1981
- 1981-02-13 JP JP56019829A patent/JPS57135321A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61150081U (en) * | 1985-03-08 | 1986-09-17 | ||
| JPH0419693U (en) * | 1990-06-05 | 1992-02-19 | ||
| JPH0419694U (en) * | 1990-06-05 | 1992-02-19 | ||
| JPH0430296U (en) * | 1990-07-07 | 1992-03-11 |
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