JPS55128356A - Decreasing method for inclusion in molten steel at continuous cast pouring time - Google Patents
Decreasing method for inclusion in molten steel at continuous cast pouring timeInfo
- Publication number
- JPS55128356A JPS55128356A JP3534079A JP3534079A JPS55128356A JP S55128356 A JPS55128356 A JP S55128356A JP 3534079 A JP3534079 A JP 3534079A JP 3534079 A JP3534079 A JP 3534079A JP S55128356 A JPS55128356 A JP S55128356A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- inclusion
- nozzle
- vomitting
- area
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
- B22D11/10—Supplying or treating molten metal
- B22D11/11—Treating the molten metal
- B22D11/116—Refining the metal
- B22D11/118—Refining the metal by circulating the metal under, over or around weirs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
PURPOSE: To enable to be obtained pure molten steel containing a small amount of inclusion, by pouring molten metal in the ladle in nearly square pouring part area in the tundish from the nozzle having plural vomitting holes, provided at the bottom of the ladle and generating revolving turbulence of the molten steel and also, floating and cohering the inclusion in the molten steel.
CONSTITUTION: Molten steel in the ladle 2 is poured in the pouring part area 5 partitioned by the dam 4 in the tundish 3 through the dipping nozzle 1 having plural vomitting holes. Since the number of vomitting holes of the nozzle 1 is 2 or 4 vomitting flow of the molten steel collides or is reflected against the dam 4 or the tundish side wall 9. Next, revolving turbulence is generated in the area 5 by generated reflection flow and inclusion in the molten steel are cohered at the center of the revolving turbulence by centrifugal force and then, are floated on the surface of the molten steel. Then, the molten steel containing a small amount of impurities, is transferred from the area 5 to the nozzle part area 7 through the connecting hole 8 of the lower part of the dam 4 and is supplied in continuous casting mold from the nozzle 6.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3534079A JPS55128356A (en) | 1979-03-26 | 1979-03-26 | Decreasing method for inclusion in molten steel at continuous cast pouring time |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP3534079A JPS55128356A (en) | 1979-03-26 | 1979-03-26 | Decreasing method for inclusion in molten steel at continuous cast pouring time |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55128356A true JPS55128356A (en) | 1980-10-04 |
Family
ID=12439117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP3534079A Pending JPS55128356A (en) | 1979-03-26 | 1979-03-26 | Decreasing method for inclusion in molten steel at continuous cast pouring time |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55128356A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04327348A (en) * | 1991-04-30 | 1992-11-16 | Kawasaki Steel Corp | Tundish having coil device for generating shifting magnetic field |
CN108348996A (en) * | 2015-11-02 | 2018-07-31 | 株式会社Posco | Steel treatment equipment and steel treatment method |
CN111448012A (en) * | 2017-12-11 | 2020-07-24 | 株式会社Posco | Molten material processing apparatus |
-
1979
- 1979-03-26 JP JP3534079A patent/JPS55128356A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH04327348A (en) * | 1991-04-30 | 1992-11-16 | Kawasaki Steel Corp | Tundish having coil device for generating shifting magnetic field |
CN108348996A (en) * | 2015-11-02 | 2018-07-31 | 株式会社Posco | Steel treatment equipment and steel treatment method |
CN108348996B (en) * | 2015-11-02 | 2020-06-12 | 株式会社Posco | Molten steel treatment apparatus and molten steel treatment method |
CN111448012A (en) * | 2017-12-11 | 2020-07-24 | 株式会社Posco | Molten material processing apparatus |
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