JPS5579817A - Refining method for stainless steel using semi-reduced chromium pellet - Google Patents

Refining method for stainless steel using semi-reduced chromium pellet

Info

Publication number
JPS5579817A
JPS5579817A JP15054278A JP15054278A JPS5579817A JP S5579817 A JPS5579817 A JP S5579817A JP 15054278 A JP15054278 A JP 15054278A JP 15054278 A JP15054278 A JP 15054278A JP S5579817 A JPS5579817 A JP S5579817A
Authority
JP
Japan
Prior art keywords
coke
scrap
pellet
semi
charged
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
JP15054278A
Other languages
Japanese (ja)
Inventor
Hiroyuki Katayama
Hiroyuki Kajioka
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
Nippon 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 Nippon Steel Corp filed Critical Nippon Steel Corp
Priority to JP15054278A priority Critical patent/JPS5579817A/en
Publication of JPS5579817A publication Critical patent/JPS5579817A/en
Pending 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

  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

PURPOSE: To refine stainless steel at low cost, which is not saturated with carbon, in good yield of Cr, by charging an electric arc furnace with steel scrap at the bottom and peripheral wall, and by charging the furnace with semi-reduced Cr pellet, coke, and lime, then by melting these raw materials.
CONSTITUTION: Steel scrap 3 is charged to spread all over the bottom and the peripheral wall of an electric arc furnace 1, and coke 5, lime 6, and semi-reduced Cr pellet 7 are charged to the central space and is mixed suitably. Some scrap 4 is placed on the top of the pellet 7 and an electric circuit is formed between the scrap and the electrode 2. The raw materials are melted by energizing the circuit after the raw materials are charged, then the slagging and melting of the pellets 7, the reduction of Cr, Fe with coke 5, formation and settling of carbide are effected, and the scrap 3 begins to melt molten slag 9 floating on the molten steel 8, and residual coke 5 floats on the slag 9. Because the molten steel comes into contact with the coke 5 through slag 9, it is hardly saturated with C.
COPYRIGHT: (C)1980,JPO&Japio
JP15054278A 1978-12-07 1978-12-07 Refining method for stainless steel using semi-reduced chromium pellet Pending JPS5579817A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15054278A JPS5579817A (en) 1978-12-07 1978-12-07 Refining method for stainless steel using semi-reduced chromium pellet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15054278A JPS5579817A (en) 1978-12-07 1978-12-07 Refining method for stainless steel using semi-reduced chromium pellet

Publications (1)

Publication Number Publication Date
JPS5579817A true JPS5579817A (en) 1980-06-16

Family

ID=15499137

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15054278A Pending JPS5579817A (en) 1978-12-07 1978-12-07 Refining method for stainless steel using semi-reduced chromium pellet

Country Status (1)

Country Link
JP (1) JPS5579817A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63282236A (en) * 1987-05-12 1988-11-18 Nisshin Steel Co Ltd Method for refining stainless steel using semireduced pellet
KR100544532B1 (en) * 2001-12-14 2006-01-24 주식회사 포스코 Method for Manufacturing Ferritic Stainless Steel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63282236A (en) * 1987-05-12 1988-11-18 Nisshin Steel Co Ltd Method for refining stainless steel using semireduced pellet
KR100544532B1 (en) * 2001-12-14 2006-01-24 주식회사 포스코 Method for Manufacturing Ferritic Stainless Steel

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