JPS5534677A - Converter tapping method - Google Patents

Converter tapping method

Info

Publication number
JPS5534677A
JPS5534677A JP10804678A JP10804678A JPS5534677A JP S5534677 A JPS5534677 A JP S5534677A JP 10804678 A JP10804678 A JP 10804678A JP 10804678 A JP10804678 A JP 10804678A JP S5534677 A JPS5534677 A JP S5534677A
Authority
JP
Japan
Prior art keywords
molten steel
converter
slag
ladle
sounds
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
Application number
JP10804678A
Other languages
Japanese (ja)
Inventor
Katsuhisa Hirayama
Masayuki Onishi
Hisahiro Nohara
Hirotomo Tominaga
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.)
JFE Steel Corp
Original Assignee
Kawasaki Steel Corp
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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP10804678A priority Critical patent/JPS5534677A/en
Publication of JPS5534677A publication Critical patent/JPS5534677A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)

Abstract

PURPOSE:To facilitate steel quality control by collecting a sound of a discharging molten steel stream hitting on a molten steel bath in a ladle and a frictional sound of the stream passing through the tap hole of a converter when molten steel is discharged from the converter and by detecting sound changes to reduce mixing of slag. CONSTITUTION:When molten steel 2 is discharged into ladle 5 from converter 1 after blowing, super-directional microphones A are set in the vicinity of the upper edge of ladle 5 and in front of discharging molten steel stream 7 immediately after leaving tap hole 4. Sounds are separately collected and sent to frequency selector 10 through microphone amplifiers 8 and mixer 9 to identify the sounds. The resulting electric signals are fed to display unit 11 and a tilting device controller for converter 1. Judgment of molten steel and slag was dependent upon the perception of a worker. By this method the difference in quantity of motion between molten steel and slag due to the difference in specific gravity is judged according to impact sounds, and appropriate slag cut is enabled to facilitate steel quality control.
JP10804678A 1978-09-05 1978-09-05 Converter tapping method Pending JPS5534677A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10804678A JPS5534677A (en) 1978-09-05 1978-09-05 Converter tapping method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10804678A JPS5534677A (en) 1978-09-05 1978-09-05 Converter tapping method

Publications (1)

Publication Number Publication Date
JPS5534677A true JPS5534677A (en) 1980-03-11

Family

ID=14474551

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10804678A Pending JPS5534677A (en) 1978-09-05 1978-09-05 Converter tapping method

Country Status (1)

Country Link
JP (1) JPS5534677A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197086B1 (en) 1997-11-13 2001-03-06 Bethlehem Steel Corporation System and method for minimizing slag carryover during the production of steel
KR100395108B1 (en) * 1999-12-09 2003-08-21 주식회사 포스코 Apparatus for controlling convertor auto emergency return
CN107312903A (en) * 2017-07-14 2017-11-03 山信软件股份有限公司 A kind of converter is tapped control system and control method automatically

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6197086B1 (en) 1997-11-13 2001-03-06 Bethlehem Steel Corporation System and method for minimizing slag carryover during the production of steel
KR100395108B1 (en) * 1999-12-09 2003-08-21 주식회사 포스코 Apparatus for controlling convertor auto emergency return
CN107312903A (en) * 2017-07-14 2017-11-03 山信软件股份有限公司 A kind of converter is tapped control system and control method automatically

Similar Documents

Publication Publication Date Title
JPS5534677A (en) Converter tapping method
GB1057805A (en) Process and apparatus for the continuous refining of metals
US4530102A (en) Lancing in electric arc steelmaking
JP2003511558A (en) Method and apparatus for surrounding an arc discharge
AU606793B2 (en) Method for detecting slag flow
CN108983693A (en) The system and optimization method of a kind of intelligent optimization IF steel top slag
GB1079572A (en) Use of sound signals to monitor metal refining operations
JPS5941409A (en) Control of blowing
JPS52107214A (en) Prevention of rephosphorization due to penetration of molten slag into ladle at tapping from converter
JPS56118103A (en) Man-machine controller
SU594180A1 (en) Converter
JPS56102514A (en) Manufacture of steel
JPS5377816A (en) Discriminating and controlling method for converter conditions in blowing
JPS5773109A (en) Blowing method in top and bottom blown converter
JPS54146210A (en) Separating method for slag from molten metal
JPH0237280A (en) Method of detecting molten metal mixing power
RO81435A (en) PROCESS FOR PRODUCING CONVERTER STEEL
JPS55154517A (en) Detecting method for furnace condition of converter
JPS56123316A (en) Method for making high-carbon steel with combined top- and bottom-blown converter
JPS5373493A (en) Method and apparatus for supplying molten slag
CN115713985A (en) Automatic stable slagging method and system for refining furnace
RU94045593A (en) Method of processing steel in casting ladle
JPH06200318A (en) Manufacture of aluminum dross briquette for deoxidation
JPS542207A (en) Separator for molten metal and molten slag
JPS6487709A (en) Steelmaking method in converter