JPS57161020A - Refining method of stainless steel - Google Patents

Refining method of stainless steel

Info

Publication number
JPS57161020A
JPS57161020A JP4563581A JP4563581A JPS57161020A JP S57161020 A JPS57161020 A JP S57161020A JP 4563581 A JP4563581 A JP 4563581A JP 4563581 A JP4563581 A JP 4563581A JP S57161020 A JPS57161020 A JP S57161020A
Authority
JP
Japan
Prior art keywords
raw materials
molten metal
supplied
stainless steel
heating
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
JP4563581A
Other languages
Japanese (ja)
Inventor
Hiroyuki Katayama
Tsutomu Saito
Hideki Ishikawa
Masatoshi Kuwabara
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 JP4563581A priority Critical patent/JPS57161020A/en
Publication of JPS57161020A publication Critical patent/JPS57161020A/en
Pending legal-status Critical Current

Links

Classifications

    • Y02W30/54—

Landscapes

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

Abstract

PURPOSE: To make refining stainless steel possible with less burnden of equipment costs and usage of electric power by transferring the middle-C and high-chromium molten metal obtd. by melting the solid raw materials contg. high-C ferrochromium in an oxidative atmosphere in a converter into an electric heating and holding furnace, and melting solid metallic raw materials therein while heating this molten metal.
CONSTITUTION: Charging raw materials 6 consisting of high carbon ferrochromium and carbonaceous solids such as coke powder preheated by high temp. waste gases in a packed tank 5 are supplied with a rotary kiln 4 into a converter-like reaction vessel 1. While O2 is supplied from the furnce bottom, the raw materials 6 are melted by a prescribed amt. and an Si alloy and lime are added to the reduction and recovering of the oxidized Cr content and desulfurization are accomplished. The prescribed amt. thereof is tapped into a ladle and slag is discharged. Next, the resultant middle-carbon high chromium molten metal in the ladle is supplied 11 to an electric type heating and holding furnace shown in the figure, where it is heated to prescribed temp. by an inductor 12. Next, solid metallic raw materials such as scraps and ferronickel are charged 13 into the molten metal is this state, and the resultant stainless steel is tapped through a molten metal tap hole 16.
COPYRIGHT: (C)1982,JPO&Japio
JP4563581A 1981-03-30 1981-03-30 Refining method of stainless steel Pending JPS57161020A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4563581A JPS57161020A (en) 1981-03-30 1981-03-30 Refining method of stainless steel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4563581A JPS57161020A (en) 1981-03-30 1981-03-30 Refining method of stainless steel

Publications (1)

Publication Number Publication Date
JPS57161020A true JPS57161020A (en) 1982-10-04

Family

ID=12724815

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4563581A Pending JPS57161020A (en) 1981-03-30 1981-03-30 Refining method of stainless steel

Country Status (1)

Country Link
JP (1) JPS57161020A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264883B1 (en) * 1997-06-27 2001-07-24 Voest-Alpine Industrieanlagenbau Gmbh Plant for the production of metal melts
JP2007224379A (en) * 2006-02-24 2007-09-06 Jfe Steel Kk Operation method of holding furnace for molten pig iron containing chromium
JP2011214125A (en) * 2010-04-02 2011-10-27 Nippon Steel Corp Method for decarburizing chromium-containing steel by blowing oxygen
CN108715913A (en) * 2018-06-07 2018-10-30 舞阳钢铁有限责任公司 A kind of method of electric furnace smelting 9Ni steel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6264883B1 (en) * 1997-06-27 2001-07-24 Voest-Alpine Industrieanlagenbau Gmbh Plant for the production of metal melts
JP2007224379A (en) * 2006-02-24 2007-09-06 Jfe Steel Kk Operation method of holding furnace for molten pig iron containing chromium
JP2011214125A (en) * 2010-04-02 2011-10-27 Nippon Steel Corp Method for decarburizing chromium-containing steel by blowing oxygen
CN108715913A (en) * 2018-06-07 2018-10-30 舞阳钢铁有限责任公司 A kind of method of electric furnace smelting 9Ni steel

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