JPS6442510A - Method for melting and refining scrap - Google Patents

Method for melting and refining scrap

Info

Publication number
JPS6442510A
JPS6442510A JP19928887A JP19928887A JPS6442510A JP S6442510 A JPS6442510 A JP S6442510A JP 19928887 A JP19928887 A JP 19928887A JP 19928887 A JP19928887 A JP 19928887A JP S6442510 A JPS6442510 A JP S6442510A
Authority
JP
Japan
Prior art keywords
melting
scrap
period
slag
refining
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
JP19928887A
Other languages
Japanese (ja)
Other versions
JPH0559962B2 (en
Inventor
Hiroaki Ishida
Masaharu Anezaki
Minoru Ishikawa
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 JP19928887A priority Critical patent/JPS6442510A/en
Publication of JPS6442510A publication Critical patent/JPS6442510A/en
Publication of JPH0559962B2 publication Critical patent/JPH0559962B2/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

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

Abstract

PURPOSE:To secure high refining efficiency by increasing basicity at melting finish period to melting initial period of scrap, adding flux and desulfurizing, to melt the scrap at good yield under consumption of the carbonic material as less as possible. CONSTITUTION:At the time of melting and refining the scrap in a top and bottom blowing converter, the basicity of the slag is controlled at 1.0-2.0 during the time from the initial period to the peak period of the melting, to improve fluidity by lowering melting point of the slag. By this method, at the time of melting the scrap which is not yet melted, the slag to be obstructed is shifted to metal pool at lower part to bare the scrap. By securing the slag quantity at 30kg/t, cover of the metal pool is produced. In this result, high effective and high efficient melting is progressed at good yield while restraining generation of fume from the metal pool. Then, in the end period of the melting when the melting is almost completed, by adding the flux of lime-series, the desulfurization is promoted. Further, by increasing the quantity to 100kg/t, the refining having good yield while sufficiently restraining the vigorous fume loss at high temp. period.
JP19928887A 1987-08-10 1987-08-10 Method for melting and refining scrap Granted JPS6442510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19928887A JPS6442510A (en) 1987-08-10 1987-08-10 Method for melting and refining scrap

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19928887A JPS6442510A (en) 1987-08-10 1987-08-10 Method for melting and refining scrap

Publications (2)

Publication Number Publication Date
JPS6442510A true JPS6442510A (en) 1989-02-14
JPH0559962B2 JPH0559962B2 (en) 1993-09-01

Family

ID=16405305

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19928887A Granted JPS6442510A (en) 1987-08-10 1987-08-10 Method for melting and refining scrap

Country Status (1)

Country Link
JP (1) JPS6442510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636678B1 (en) 1999-01-27 2003-10-21 Teem Photonics, Inc. Method and apparatus for waveguide optics and devices

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157365A (en) * 1984-08-30 1986-03-24 Canon Inc Carriage driver

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6157365A (en) * 1984-08-30 1986-03-24 Canon Inc Carriage driver

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6636678B1 (en) 1999-01-27 2003-10-21 Teem Photonics, Inc. Method and apparatus for waveguide optics and devices
US6690873B2 (en) 1999-01-27 2004-02-10 Teem Photonics Method and apparatus for waveguide optics and devices

Also Published As

Publication number Publication date
JPH0559962B2 (en) 1993-09-01

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term