JPS56146817A - Refining method for molten steel in ladle - Google Patents

Refining method for molten steel in ladle

Info

Publication number
JPS56146817A
JPS56146817A JP4827180A JP4827180A JPS56146817A JP S56146817 A JPS56146817 A JP S56146817A JP 4827180 A JP4827180 A JP 4827180A JP 4827180 A JP4827180 A JP 4827180A JP S56146817 A JPS56146817 A JP S56146817A
Authority
JP
Japan
Prior art keywords
steel
molten steel
slag
ladle
gas
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
JP4827180A
Other languages
Japanese (ja)
Other versions
JPS6027726B2 (en
Inventor
Kiyomi Taguchi
Masayuki Hanmiyo
Masaru Ishikawa
Haruyoshi Tanabe
Kenzo Yamada
Tsutomu Usui
Yoshio Miyashita
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 Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP55048271A priority Critical patent/JPS6027726B2/en
Publication of JPS56146817A publication Critical patent/JPS56146817A/en
Publication of JPS6027726B2 publication Critical patent/JPS6027726B2/en
Expired legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To obtain steel with low P, S, H and O contents inexpensively and easily by pouring molten steel into a ladle, blowing a gas to agitate the steel, removing slag, and carrying out evacuation treatment and agitation by gas blowing.
CONSTITUTION: Refined molten steel is poured into a ladle having a tightly sealed cover, and a heating electrode is dipped in slag on the steel to heat the steel. A flux for refining is then added, and a gas for agitation is blown through a dipped lance to agitate the molten steel and the slag on the steel in an oxidizing gaseous atmosphere. After removing the slag the molten steel in the ladle is degassed by evacuation treatment. The flux is added again, and an inert gas is blown to agitate the steel and slag on the steel. By this method of refining molten steel the P, S, H and O contents of molten steel are reduced, and the component regulating capacity is increased.
COPYRIGHT: (C)1981,JPO&Japio
JP55048271A 1980-04-12 1980-04-12 Method for refining molten steel using a ladle Expired JPS6027726B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55048271A JPS6027726B2 (en) 1980-04-12 1980-04-12 Method for refining molten steel using a ladle

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55048271A JPS6027726B2 (en) 1980-04-12 1980-04-12 Method for refining molten steel using a ladle

Publications (2)

Publication Number Publication Date
JPS56146817A true JPS56146817A (en) 1981-11-14
JPS6027726B2 JPS6027726B2 (en) 1985-07-01

Family

ID=12798771

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55048271A Expired JPS6027726B2 (en) 1980-04-12 1980-04-12 Method for refining molten steel using a ladle

Country Status (1)

Country Link
JP (1) JPS6027726B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116939A1 (en) * 2006-04-07 2007-10-18 Sumitomo Metal Industries, Ltd. Method of smelting highly clean steel with extremely low sulfur content

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61177027U (en) * 1985-04-24 1986-11-05
JPS61207232U (en) * 1985-06-14 1986-12-27
JPH02134024U (en) * 1989-04-17 1990-11-07

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223968A (en) * 1975-08-18 1977-02-23 Seiko Instr & Electronics Ltd Digital alarm watch

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5223968A (en) * 1975-08-18 1977-02-23 Seiko Instr & Electronics Ltd Digital alarm watch

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2007116939A1 (en) * 2006-04-07 2007-10-18 Sumitomo Metal Industries, Ltd. Method of smelting highly clean steel with extremely low sulfur content

Also Published As

Publication number Publication date
JPS6027726B2 (en) 1985-07-01

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