JPS6439317A - Method for heating molten steel in closed-circuit vacuum degassing treating equipment - Google Patents
Method for heating molten steel in closed-circuit vacuum degassing treating equipmentInfo
- Publication number
- JPS6439317A JPS6439317A JP19515887A JP19515887A JPS6439317A JP S6439317 A JPS6439317 A JP S6439317A JP 19515887 A JP19515887 A JP 19515887A JP 19515887 A JP19515887 A JP 19515887A JP S6439317 A JPS6439317 A JP S6439317A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- electromagnetic induction
- vacuum degassing
- induction coils
- closed
- 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)
Abstract
PURPOSE:To easily carry out the heating of molten steel in parallel with refining without deteriorating the cleanliness of the molten steel, by disposing electromagnetic induction coils in the outside periphery of a refractory-exposed zone in which protective shell is removed in the lower part of a vacuum tank and then subjecting the circulating molten steel to induction heating. CONSTITUTION:Electromagnetic induction coils 6 are disposed around the outside periphery of a refractory-exposed zone 10 where a protective shell 8 of a lower tank 1' of a vacuum tank, in the part where molten steel is sucked, is partially removed over the whole periphery. An electric current is sent to the above electromagnetic induction coils 6, by which the molten steel flowing in the lower tank 1' is subjected to direct induction heating. Since the molten steel can be directly heated in parallel with vacuum degassing treatment, reduction in temp. of the molten steel under vacuum treatment can be reduced. Further, the control of tapping temp. can be advantageously relaxed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19515887A JPS6439317A (en) | 1987-08-06 | 1987-08-06 | Method for heating molten steel in closed-circuit vacuum degassing treating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP19515887A JPS6439317A (en) | 1987-08-06 | 1987-08-06 | Method for heating molten steel in closed-circuit vacuum degassing treating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6439317A true JPS6439317A (en) | 1989-02-09 |
Family
ID=16336394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP19515887A Pending JPS6439317A (en) | 1987-08-06 | 1987-08-06 | Method for heating molten steel in closed-circuit vacuum degassing treating equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6439317A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388235B1 (en) * | 1998-12-14 | 2003-10-30 | 주식회사 포스코 | Molten steel refinery equipped with molten metal heating and reflux means by AC electromagnetic field |
| KR100415929B1 (en) * | 1999-12-21 | 2004-01-31 | 주식회사 포스코 | Rh-ob apparatus of molten steel using heating divice |
-
1987
- 1987-08-06 JP JP19515887A patent/JPS6439317A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100388235B1 (en) * | 1998-12-14 | 2003-10-30 | 주식회사 포스코 | Molten steel refinery equipped with molten metal heating and reflux means by AC electromagnetic field |
| KR100415929B1 (en) * | 1999-12-21 | 2004-01-31 | 주식회사 포스코 | Rh-ob apparatus of molten steel using heating divice |
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