JPS5723016A - Arc furnace steel making method - Google Patents
Arc furnace steel making methodInfo
- Publication number
- JPS5723016A JPS5723016A JP9656980A JP9656980A JPS5723016A JP S5723016 A JPS5723016 A JP S5723016A JP 9656980 A JP9656980 A JP 9656980A JP 9656980 A JP9656980 A JP 9656980A JP S5723016 A JPS5723016 A JP S5723016A
- Authority
- JP
- Japan
- Prior art keywords
- furnace
- steel
- approx
- charged
- pig iron
- 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.)
- Granted
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
PURPOSE: To attain the enhancement of productivity of steel and the saving of energy by making the best of the advantage of an oxygen-enriched operation by a method in which carbon content of molten steel is once reduced to a low level and again raised.
CONSTITUTION: A raw material, e.g., scraps, etc., is charged into an arc furnace 1 and melted by arc, and oxygen gas is blown into the furnace through a lance pipe 6 in the molding and oxidizing periods to make a steel with a carbon content of 0.20% or less. While making such arc heating and oxygen blowing, molten pig iron containing at least approx. 2.0% or less carbon is charged in a given proportion from a container 7 into the furnace 1, whereupon slag 4 upheaves. The preferred amount of the molten pig iron to be charged at the final stage is approx. 10W50%, by which the amount of carbon to be supplied from the molten pig iron is regulated to be approx. 0.2W2.0kg/min per to of the molten steel. Thus, the increase in the amount of slag and the wearing of the wall of the furnace can be suppressed.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9656980A JPS5723016A (en) | 1980-07-15 | 1980-07-15 | Arc furnace steel making method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9656980A JPS5723016A (en) | 1980-07-15 | 1980-07-15 | Arc furnace steel making method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5723016A true JPS5723016A (en) | 1982-02-06 |
| JPS635450B2 JPS635450B2 (en) | 1988-02-03 |
Family
ID=14168631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9656980A Granted JPS5723016A (en) | 1980-07-15 | 1980-07-15 | Arc furnace steel making method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5723016A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087861A (en) * | 2015-09-02 | 2015-11-25 | 共享铸钢有限公司 | Method for smelting primary steel making liquid for high-alloy steel casting |
| JP2023132415A (en) * | 2022-03-11 | 2023-09-22 | 山田 榮子 | Scrap iron melting method reduced in industrial waste |
-
1980
- 1980-07-15 JP JP9656980A patent/JPS5723016A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105087861A (en) * | 2015-09-02 | 2015-11-25 | 共享铸钢有限公司 | Method for smelting primary steel making liquid for high-alloy steel casting |
| JP2023132415A (en) * | 2022-03-11 | 2023-09-22 | 山田 榮子 | Scrap iron melting method reduced in industrial waste |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS635450B2 (en) | 1988-02-03 |
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