JPS57199547A - Production of low nitrogen-containing steel by continuous casting method - Google Patents
Production of low nitrogen-containing steel by continuous casting methodInfo
- Publication number
- JPS57199547A JPS57199547A JP8364081A JP8364081A JPS57199547A JP S57199547 A JPS57199547 A JP S57199547A JP 8364081 A JP8364081 A JP 8364081A JP 8364081 A JP8364081 A JP 8364081A JP S57199547 A JPS57199547 A JP S57199547A
- Authority
- JP
- Japan
- Prior art keywords
- mold
- molten steel
- steel
- ladle
- casting
- 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
- 229910000831 Steel Inorganic materials 0.000 title abstract 9
- 239000010959 steel Substances 0.000 title abstract 9
- 238000009749 continuous casting Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 title 1
- 230000004907 flux Effects 0.000 abstract 3
- 238000005266 casting Methods 0.000 abstract 2
- 230000005674 electromagnetic induction Effects 0.000 abstract 2
- 238000009413 insulation Methods 0.000 abstract 2
- 238000013019 agitation Methods 0.000 abstract 1
- 238000004140 cleaning Methods 0.000 abstract 1
- 238000007654 immersion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 239000000155 melt Substances 0.000 abstract 1
- 230000008018 melting Effects 0.000 abstract 1
- 238000002844 melting Methods 0.000 abstract 1
- 238000010079 rubber tapping Methods 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
PURPOSE:To produce low N-contg. steel of superior plastic workability by subjecting the molten steel of respectively specified contents of C, Si, Al and N to a cleaning and melting treatment and component control without Al deoxidation treatment, charging this steel together with a heat insulation type flux into a mold for casting and drawing it out continuously under electromagnetic induction agitation. CONSTITUTION:The steel material contg. <=0.25% C, <=0.02% Si, <=0.18% Al and <=25ppm N is tapped into a ladle without undergoing a deoxidation treatment involving charging of Al at the tapping. The molten steel in the ladle is agitated by Ar to reduce inclusions and Al is charged thereto to control the Al component, after which the molten steel is supplied through an immersion nozzle into a mold for casting. While a heat insulation flux is charged onto the melt surface, the molten steel is drawn out continuously to the bottom of the mold and is solidified. It is necessary to draw out the molten steel from the mold while agitating the same by electromagnetic induction by the magnetic field induced by the AC of specified frequency and magnetic flux density in the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8364081A JPS57199547A (en) | 1981-05-30 | 1981-05-30 | Production of low nitrogen-containing steel by continuous casting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8364081A JPS57199547A (en) | 1981-05-30 | 1981-05-30 | Production of low nitrogen-containing steel by continuous casting method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57199547A true JPS57199547A (en) | 1982-12-07 |
Family
ID=13808043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8364081A Pending JPS57199547A (en) | 1981-05-30 | 1981-05-30 | Production of low nitrogen-containing steel by continuous casting method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57199547A (en) |
-
1981
- 1981-05-30 JP JP8364081A patent/JPS57199547A/en active Pending
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