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JPS56220A - Deoxidization of molten steel - Google Patents

Deoxidization of molten steel

Info

Publication number
JPS56220A
JPS56220A JP7572679A JP7572679A JPS56220A JP S56220 A JPS56220 A JP S56220A JP 7572679 A JP7572679 A JP 7572679A JP 7572679 A JP7572679 A JP 7572679A JP S56220 A JPS56220 A JP S56220A
Authority
JP
Japan
Prior art keywords
molten steel
aluminum
inert gas
deoxidization
aluminum ash
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
JP7572679A
Other languages
Japanese (ja)
Inventor
Hiroyuki Nakajima
Shigeo Tsuruoka
Sadatomi Kouno
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 JP7572679A priority Critical patent/JPS56220A/en
Publication of JPS56220A publication Critical patent/JPS56220A/en
Pending legal-status Critical Current

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  • Treatment Of Steel In Its Molten State (AREA)

Abstract

PURPOSE: To deoxidize molten steel at low cost as well as remove completely Al2O3 present in the molten steel by floatation by blowing aluminum ash with a carrier gas, e.g., an inert gas, into the molten steel.
CONSTITUTION: Using the lance 7, the aluminum ash 8 with an inert gas, e.g., Ar, N2, etc., as a carrier gas, is blown from the container 4 into the molten steel in the ladle 2. The aluminum ash is a cheap by-product consisting of 30% metallic aluminum and Al2O3, formed when an aluminum metal is melted. Thus, the deoxidizing cost is lower than the cases where the aluminum metal is used as a deoxidizing agent, and also Al2O3 as a nonmetal inclusion in the molten steel is floated to the surface of the molten steel by the stirring action of the inert gas, thus permitting an Al2O3 free clean steel to be manufactured easily.
COPYRIGHT: (C)1981,JPO&Japio
JP7572679A 1979-06-18 1979-06-18 Deoxidization of molten steel Pending JPS56220A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7572679A JPS56220A (en) 1979-06-18 1979-06-18 Deoxidization of molten steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7572679A JPS56220A (en) 1979-06-18 1979-06-18 Deoxidization of molten steel

Publications (1)

Publication Number Publication Date
JPS56220A true JPS56220A (en) 1981-01-06

Family

ID=13584553

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7572679A Pending JPS56220A (en) 1979-06-18 1979-06-18 Deoxidization of molten steel

Country Status (1)

Country Link
JP (1) JPS56220A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899606U (en) * 1981-12-28 1983-07-06 東芝機械株式会社 Measuring device
EP0351762A2 (en) * 1988-07-18 1990-01-24 Kawasaki Steel Corporation Process for producing high cleanness extra low carbon steel
JPH0610026A (en) * 1992-06-25 1994-01-18 Kawasaki Steel Corp Method for deoxidizing molten steel
EP0603858A1 (en) * 1992-12-24 1994-06-29 Yamaichi Metal Co., Ltd. Method of processing hot dross of aluminum resulting from an aluminum smelting process and a deoxidant obtained from said method
CN110218837A (en) * 2019-06-04 2019-09-10 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of method of recycling harmlessness disposing aluminium ash

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504165A (en) * 1973-05-17 1975-01-17
JPS53129115A (en) * 1977-04-19 1978-11-10 Kawasaki Steel Co Method of adding aluminum to molten steel

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS504165A (en) * 1973-05-17 1975-01-17
JPS53129115A (en) * 1977-04-19 1978-11-10 Kawasaki Steel Co Method of adding aluminum to molten steel

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5899606U (en) * 1981-12-28 1983-07-06 東芝機械株式会社 Measuring device
JPH0233122Y2 (en) * 1981-12-28 1990-09-06
EP0351762A2 (en) * 1988-07-18 1990-01-24 Kawasaki Steel Corporation Process for producing high cleanness extra low carbon steel
JPH0610026A (en) * 1992-06-25 1994-01-18 Kawasaki Steel Corp Method for deoxidizing molten steel
EP0603858A1 (en) * 1992-12-24 1994-06-29 Yamaichi Metal Co., Ltd. Method of processing hot dross of aluminum resulting from an aluminum smelting process and a deoxidant obtained from said method
CN110218837A (en) * 2019-06-04 2019-09-10 甘肃酒钢集团宏兴钢铁股份有限公司 A kind of method of recycling harmlessness disposing aluminium ash

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