JPS5597420A - Dephosphorization of steel and alloy - Google Patents

Dephosphorization of steel and alloy

Info

Publication number
JPS5597420A
JPS5597420A JP406779A JP406779A JPS5597420A JP S5597420 A JPS5597420 A JP S5597420A JP 406779 A JP406779 A JP 406779A JP 406779 A JP406779 A JP 406779A JP S5597420 A JPS5597420 A JP S5597420A
Authority
JP
Japan
Prior art keywords
molten
alloy
steel
rare
earth metal
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
JP406779A
Other languages
Japanese (ja)
Other versions
JPS6157371B2 (en
Inventor
Toru Matsuo
Ryuka Ikeda
Masayuki Taga
Yasumasa Inoue
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 JP406779A priority Critical patent/JPS5597420A/en
Publication of JPS5597420A publication Critical patent/JPS5597420A/en
Publication of JPS6157371B2 publication Critical patent/JPS6157371B2/ja
Granted 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 easily prepare low phosphorus steel by a melting method without losing Cr or the like by contacting molten slag which is based on Ca fluoride compound and added by a predetermined amount of one kind of rare-earth metal such as Ce, La or two or more thereof with steel or its alloy in a nonoxidizing atmosphere.
CONSTITUTION: Molten steel or molten alloy and molten slag obtained by adding 1W50wt% of one kind or two or more kinds of rare-earth metal selected from Ce, La which is easily used and has high b.p. are contacted and reacted in a nonoxidizing atmosphere to dephosphorize molten steel or molten alloy. Because reaction is carried out in a nonoxidizing atmosphere, rare-earth metal within molten slag is prevented from oxidation and loss as well as reduction of dephosphorization capacity is inhibited and oxidative decomposition of formed phosphorus compound is prevented. By using nonoxidative slag, dephosphorization effect can be enhanced without oxidizing and losing alloy component such as Cr, Si or the like.
COPYRIGHT: (C)1980,JPO&Japio
JP406779A 1979-01-16 1979-01-16 Dephosphorization of steel and alloy Granted JPS5597420A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP406779A JPS5597420A (en) 1979-01-16 1979-01-16 Dephosphorization of steel and alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP406779A JPS5597420A (en) 1979-01-16 1979-01-16 Dephosphorization of steel and alloy

Publications (2)

Publication Number Publication Date
JPS5597420A true JPS5597420A (en) 1980-07-24
JPS6157371B2 JPS6157371B2 (en) 1986-12-06

Family

ID=11574475

Family Applications (1)

Application Number Title Priority Date Filing Date
JP406779A Granted JPS5597420A (en) 1979-01-16 1979-01-16 Dephosphorization of steel and alloy

Country Status (1)

Country Link
JP (1) JPS5597420A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159523A (en) * 1985-01-08 1986-07-19 Sumitomo Metal Ind Ltd Dephosphorizing method of molten metal

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0389585U (en) * 1989-12-27 1991-09-12

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61159523A (en) * 1985-01-08 1986-07-19 Sumitomo Metal Ind Ltd Dephosphorizing method of molten metal

Also Published As

Publication number Publication date
JPS6157371B2 (en) 1986-12-06

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