JPS6487744A - Manufacture of medium-or low-carbon ferromanganese - Google Patents

Manufacture of medium-or low-carbon ferromanganese

Info

Publication number
JPS6487744A
JPS6487744A JP24361087A JP24361087A JPS6487744A JP S6487744 A JPS6487744 A JP S6487744A JP 24361087 A JP24361087 A JP 24361087A JP 24361087 A JP24361087 A JP 24361087A JP S6487744 A JPS6487744 A JP S6487744A
Authority
JP
Japan
Prior art keywords
blowing
oxidizing gas
low
carbon ferromanganese
molten
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
JP24361087A
Other languages
Japanese (ja)
Inventor
Kimiharu Yamaguchi
Yasuo Kishimoto
Shoji Miyagawa
Toshikazu Sakuratani
Tetsuya Fujii
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 Steel Corp
Original Assignee
Kawasaki 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 Kawasaki Steel Corp filed Critical Kawasaki Steel Corp
Priority to JP24361087A priority Critical patent/JPS6487744A/en
Publication of JPS6487744A publication Critical patent/JPS6487744A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To efficiently manufacture medium- or low-carbon ferromanganese at a low cost by blowing an oxidizing gas against the bath surface of molten high-carbon ferromanganese under agitation to carry out decarburization and blowing an oxidizing gas containing carbon dioxide gas during the period of this blowing. CONSTITUTION:Decarburization is carried out by blowing an oxidizing gas against the bath surface of molten high-carbon ferromanganese while agitating the above molten metal by means of the shaking of a furnace body or the blowing of a gas through a furnace-bottom tuyere. At this time, at least in a part of blowing period in the decarburizing blowing, an oxidizing gas containing carbon dioxide gas is blown via a top-blowing lance. Further, if necessary, at least either of respective feed speeds of the oxidizing gas and the carbon dioxide gas to be blown through the top-blowing lance is changed to regulate the temp. of the molten metal. By this method, the molten-metal temp. is easily controlled and decarburization is rapidly carried out, by which the medium- or low-carbon ferromanganese can be obtained in a high Mn yield.
JP24361087A 1987-09-30 1987-09-30 Manufacture of medium-or low-carbon ferromanganese Pending JPS6487744A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24361087A JPS6487744A (en) 1987-09-30 1987-09-30 Manufacture of medium-or low-carbon ferromanganese

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24361087A JPS6487744A (en) 1987-09-30 1987-09-30 Manufacture of medium-or low-carbon ferromanganese

Publications (1)

Publication Number Publication Date
JPS6487744A true JPS6487744A (en) 1989-03-31

Family

ID=17106376

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24361087A Pending JPS6487744A (en) 1987-09-30 1987-09-30 Manufacture of medium-or low-carbon ferromanganese

Country Status (1)

Country Link
JP (1) JPS6487744A (en)

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