JPS55115918A - Electric furnace steel making method - Google Patents

Electric furnace steel making method

Info

Publication number
JPS55115918A
JPS55115918A JP2187379A JP2187379A JPS55115918A JP S55115918 A JPS55115918 A JP S55115918A JP 2187379 A JP2187379 A JP 2187379A JP 2187379 A JP2187379 A JP 2187379A JP S55115918 A JPS55115918 A JP S55115918A
Authority
JP
Japan
Prior art keywords
period
steel
reducing
electric furnace
sic
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
JP2187379A
Other languages
Japanese (ja)
Other versions
JPS5839205B2 (en
Inventor
Itaru Suyama
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.)
Asahi Giken Kogyo KK
Original Assignee
Asahi Giken Kogyo KK
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 Asahi Giken Kogyo KK filed Critical Asahi Giken Kogyo KK
Priority to JP54021873A priority Critical patent/JPS5839205B2/en
Priority to US06/020,178 priority patent/US4222768A/en
Priority to CA000356494A priority patent/CA1146758A/en
Priority claimed from CA000356494A external-priority patent/CA1146758A/en
Publication of JPS55115918A publication Critical patent/JPS55115918A/en
Publication of JPS5839205B2 publication Critical patent/JPS5839205B2/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

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

Abstract

PURPOSE: To reduce and decrease the metal oxides in oxide slag, ease the transfer to reducing period and produce the steel which is free from non-metallic inclusions and is superior in cleanliness by adding SiC into the furnace at the terminal period of the oxidizing period during electric furnace steel making process.
CONSTITUTION: Steel scraps are charged into the electric furnace and are melted by the arc, etc. by an electrode. Raw materials containing iron oxide such as iron ore and scale are added and the P, Zn, Sn, Al, Si and C in the molten steel are oxidation-refined. In the next reducing process, the metal oxides having entered the oxide slag are reduced to improve the yield thereof and desulfurization-refine the molten steel. Here, SiC is added at about 3W10kg per ton of the raw material steel scraps used, prior to ending of the oxidizing period. Since SiC has extremely large reducing power, it prevents the over-oxidation of the molten steel in the oxidizing period and reduces the oxidation losses of Cr, Mn, Fe, etc. At the same time, it improves the utilization efficiency of reducing agents in the reducing period, eases the reduction-refining and saves the consumption of heat energy.
COPYRIGHT: (C)1980,JPO&Japio
JP54021873A 1978-03-14 1979-02-28 Electric furnace steelmaking method Expired JPS5839205B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP54021873A JPS5839205B2 (en) 1979-02-28 1979-02-28 Electric furnace steelmaking method
US06/020,178 US4222768A (en) 1978-03-14 1979-03-13 Method for producing electric steel
CA000356494A CA1146758A (en) 1978-03-14 1980-07-18 Method for producing electric steel

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP54021873A JPS5839205B2 (en) 1979-02-28 1979-02-28 Electric furnace steelmaking method
CA000356494A CA1146758A (en) 1978-03-14 1980-07-18 Method for producing electric steel

Publications (2)

Publication Number Publication Date
JPS55115918A true JPS55115918A (en) 1980-09-06
JPS5839205B2 JPS5839205B2 (en) 1983-08-29

Family

ID=25669118

Family Applications (1)

Application Number Title Priority Date Filing Date
JP54021873A Expired JPS5839205B2 (en) 1978-03-14 1979-02-28 Electric furnace steelmaking method

Country Status (1)

Country Link
JP (1) JPS5839205B2 (en)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986210A (en) * 1972-12-25 1974-08-19

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4986210A (en) * 1972-12-25 1974-08-19

Also Published As

Publication number Publication date
JPS5839205B2 (en) 1983-08-29

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