JPS6447809A - Method for raising temperature of molten metal in ladle - Google Patents
Method for raising temperature of molten metal in ladleInfo
- Publication number
- JPS6447809A JPS6447809A JP20223787A JP20223787A JPS6447809A JP S6447809 A JPS6447809 A JP S6447809A JP 20223787 A JP20223787 A JP 20223787A JP 20223787 A JP20223787 A JP 20223787A JP S6447809 A JPS6447809 A JP S6447809A
- Authority
- JP
- Japan
- Prior art keywords
- raising
- temp
- pipe
- metal wire
- oxygen
- 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
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
- Continuous Casting (AREA)
Abstract
PURPOSE:To restrain loss of valued component without increasing heating cost by submerging a top-blowing lance composing of triplex pipes into molten steel, letting out a metal wire for raising temp. from the inner pipe at the specific velocity and blowing oxygen gas and inert gas respectively from the middle pipe and the outer pipe. CONSTITUTION:The top-blowing lance 3 having the triplex pipes composing of the inner pipe 3-1, middle pipe 3-2 and outer pipe 3-3 is submerged into the molten steel 2 in a ladle 1. Then metal wire 4 for raising temp. (Al, etc.) is let out from the inner pipe 3-1 at supplying velocity calculated from the equation, and the oxygen gas G1 from the middle pipe 3-2 and the inert gas G2 from the outer pipe 3-3 are blown, respectively. Then, in the equation, they use (v) for supplying velocity (m/min) of the metal wire for raising temp., WM for metal wt. (kg/Nm<3>) for raising temp., which is stoichimometrically equal to 1Nm<3> of oxygen, Qo2 for oxygen supplying velocity (Nm<3>/min), rho for the metal density (kg/m<3>) for raising temp. and (s) for cross sectional area (m<2>) of the metal wire for raising temp. By this method, at the time of raising the temp., low grade oxide in the slag is reduced and the cleanliness is improved.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20223787A JPS6447809A (en) | 1987-08-13 | 1987-08-13 | Method for raising temperature of molten metal in ladle |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20223787A JPS6447809A (en) | 1987-08-13 | 1987-08-13 | Method for raising temperature of molten metal in ladle |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6447809A true JPS6447809A (en) | 1989-02-22 |
Family
ID=16454226
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20223787A Pending JPS6447809A (en) | 1987-08-13 | 1987-08-13 | Method for raising temperature of molten metal in ladle |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6447809A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04314816A (en) * | 1991-04-12 | 1992-11-06 | Nippon Steel Corp | Method for charging temperature-raising material in refining equipment |
US8519212B2 (en) | 2000-08-03 | 2013-08-27 | Nippon Shokubai Co., Ltd. | Water-absorbent resin, hydropolymer, process for producing them, and uses of them |
JP2014040658A (en) * | 2012-07-06 | 2014-03-06 | Speciality Minerals (Michigan) Inc | Narrow metallurgical wire pouring method and deepness control related thereto |
CN110184415A (en) * | 2019-05-29 | 2019-08-30 | 钢铁研究总院 | A kind of ladle refining Yarn feeding device and line feeding method |
-
1987
- 1987-08-13 JP JP20223787A patent/JPS6447809A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04314816A (en) * | 1991-04-12 | 1992-11-06 | Nippon Steel Corp | Method for charging temperature-raising material in refining equipment |
US8519212B2 (en) | 2000-08-03 | 2013-08-27 | Nippon Shokubai Co., Ltd. | Water-absorbent resin, hydropolymer, process for producing them, and uses of them |
JP2014040658A (en) * | 2012-07-06 | 2014-03-06 | Speciality Minerals (Michigan) Inc | Narrow metallurgical wire pouring method and deepness control related thereto |
CN110184415A (en) * | 2019-05-29 | 2019-08-30 | 钢铁研究总院 | A kind of ladle refining Yarn feeding device and line feeding method |
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