JPS57161020A - Refining method of stainless steel - Google Patents
Refining method of stainless steelInfo
- 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
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
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)
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 |
-
1981
- 1981-03-30 JP JP4563581A patent/JPS57161020A/en active Pending
Cited By (4)
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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