[go: up one dir, main page]

JPS57121864A - Detection of slag tapping - Google Patents

Detection of slag tapping

Info

Publication number
JPS57121864A
JPS57121864A JP56007436A JP743681A JPS57121864A JP S57121864 A JPS57121864 A JP S57121864A JP 56007436 A JP56007436 A JP 56007436A JP 743681 A JP743681 A JP 743681A JP S57121864 A JPS57121864 A JP S57121864A
Authority
JP
Japan
Prior art keywords
nozzle
slag
molten metal
oscillated
molten
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
JP56007436A
Other languages
Japanese (ja)
Other versions
JPS5935710B2 (en
Inventor
Tetsuo Hatono
Sumio Kobayashi
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.)
Nippon Steel Corp
Original Assignee
Sumitomo Metal Industries 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 Sumitomo Metal Industries Ltd filed Critical Sumitomo Metal Industries Ltd
Priority to JP56007436A priority Critical patent/JPS5935710B2/en
Publication of JPS57121864A publication Critical patent/JPS57121864A/en
Publication of JPS5935710B2 publication Critical patent/JPS5935710B2/en
Expired 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
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/18—Controlling or regulating processes or operations for pouring
    • B22D11/181—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level
    • B22D11/186—Controlling or regulating processes or operations for pouring responsive to molten metal level or slag level by using electric, magnetic, sonic or ultrasonic means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Investigating And Analyzing Materials By Characteristic Methods (AREA)

Abstract

PURPOSE:To detect the outflow of molten slag of the case in which a nozzle which is impossible to observe or is of high electric conductivity is used by measuring the radiation energy of the microwave band oscillated from the molten steel passing through the nozzle on the outer side of the nozzle. CONSTITUTION:In the stage of casting molten metal from a ladle 1 to a tundish 2, the wavelength oscillated from the molten metal flowing through an immersion nozzle 5 is measured with a detector 10, and the result of the measurement is displayed in an indicating meter 15. The change in the wavelength oscillated when the slag floating on the molten metal surface passes through the nozzle 5 in the end period of the casting is detected and an oil hydraulic cylinder 4a is operated to close a sliding nozzle 4. In this way, the inclusion of the slag in the ladle 1 into the tundish 2 is prevented.
JP56007436A 1981-01-20 1981-01-20 Slag detection method Expired JPS5935710B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56007436A JPS5935710B2 (en) 1981-01-20 1981-01-20 Slag detection method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56007436A JPS5935710B2 (en) 1981-01-20 1981-01-20 Slag detection method

Publications (2)

Publication Number Publication Date
JPS57121864A true JPS57121864A (en) 1982-07-29
JPS5935710B2 JPS5935710B2 (en) 1984-08-30

Family

ID=11665805

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56007436A Expired JPS5935710B2 (en) 1981-01-20 1981-01-20 Slag detection method

Country Status (1)

Country Link
JP (1) JPS5935710B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60108149A (en) * 1983-11-16 1985-06-13 Sumitomo Metal Ind Ltd Slag outflow detection device
JPS61268915A (en) * 1985-05-22 1986-11-28 Daido Steel Co Ltd Slag port control device for waste material melting and processing furnace
US4693614A (en) * 1983-06-20 1987-09-15 Sumitomo Metal Industries, Ltd. Apparatus for detecting slag outflow
US4816758A (en) * 1984-10-27 1989-03-28 Amepa Angewandte Messtechnik Und Prozessautomatisierung Gmbh Method and apparatus for the detection of slag co-flowing within a stream of molten metal
CN101947645A (en) * 2010-09-14 2011-01-19 浙江工业大学 Method for indentifying steel ladle slag entrapment process
KR101228695B1 (en) 2009-12-09 2013-02-01 주식회사 포스코 Device and method for predicting nozzle clogging thickness of continuous casting process

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4693614A (en) * 1983-06-20 1987-09-15 Sumitomo Metal Industries, Ltd. Apparatus for detecting slag outflow
JPS60108149A (en) * 1983-11-16 1985-06-13 Sumitomo Metal Ind Ltd Slag outflow detection device
JPH0234265B2 (en) * 1983-11-16 1990-08-02 Sumitomo Metal Ind
US4816758A (en) * 1984-10-27 1989-03-28 Amepa Angewandte Messtechnik Und Prozessautomatisierung Gmbh Method and apparatus for the detection of slag co-flowing within a stream of molten metal
JPS61268915A (en) * 1985-05-22 1986-11-28 Daido Steel Co Ltd Slag port control device for waste material melting and processing furnace
KR101228695B1 (en) 2009-12-09 2013-02-01 주식회사 포스코 Device and method for predicting nozzle clogging thickness of continuous casting process
CN101947645A (en) * 2010-09-14 2011-01-19 浙江工业大学 Method for indentifying steel ladle slag entrapment process

Also Published As

Publication number Publication date
JPS5935710B2 (en) 1984-08-30

Similar Documents

Publication Publication Date Title
DE3276388D1 (en) Microwave sensor for checking the level of the molten metal in continuous casting processes
ZA858227B (en) Method and apparatus for detecting slag in a flowing molten metal
JPS57121864A (en) Detection of slag tapping
GB1590544A (en) Method of and apparatus for indicating the end of the casting operation when pouring metals from casting vessels
US4635832A (en) Method of, and an arrangement for casting metal melt
ATE118093T1 (en) DEVICE FOR THE CONTINUOUS MEASUREMENT OF A MOLTEN METAL.
DE3060230D1 (en) Process and apparatus for measuring the slag level in a metallurgical vessel and for assessing its physical condition
JPS5536784A (en) Carbon content measuring device of molten steel
US5375816A (en) Slag detecting device and method
EP0245010A3 (en) Submersible probe for a single measurement of the temperature of molten metal
Julius et al. Function and Application of an Electromagnetic Slag Detection System
SE9501866L (en) Ways to string metal
JPS5482023A (en) Static electricity supervisory unit for transformers
JPH04329323A (en) Temperature measuring apparatus for high temperature molten body
JPS5443059A (en) Measuring apparatus of velocity of flow of molten metal
JPS5756154A (en) Method and device for detecting slag outflow
JPS53144405A (en) Probe device for measurement
Julius et al. Function and application of an electromagnetic slag detection system
JPS55104417A (en) Foreseeing method of occurrence of slopping in converter blowing
Jungreithmeier et al. The industrial use of the on-line nitrogen determination system NITRIS
Zeewy et al. Microwave-Driven Slag Thickness Measurement
JPS57115959A (en) Detection of shell breakdown of cast steel in continuous casting mold
Klages Measurement of refractory lining in metallurgical vessels
JPS56122656A (en) Slag detector
Johnston Optimization of Accuracy in Ultrasonic Velocity Measurement of Nodular Cast Iron.(Retroactive Coverage)