JPS62214120A - Production of al killed steel - Google Patents
Production of al killed steelInfo
- Publication number
- JPS62214120A JPS62214120A JP5552286A JP5552286A JPS62214120A JP S62214120 A JPS62214120 A JP S62214120A JP 5552286 A JP5552286 A JP 5552286A JP 5552286 A JP5552286 A JP 5552286A JP S62214120 A JPS62214120 A JP S62214120A
- Authority
- JP
- Japan
- Prior art keywords
- molten steel
- steel
- installation
- added
- killed steel
- 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
- 229910000655 Killed steel Inorganic materials 0.000 title claims abstract description 12
- 238000004519 manufacturing process Methods 0.000 title abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 11
- 239000010959 steel Substances 0.000 claims abstract description 11
- 238000007872 degassing Methods 0.000 claims abstract description 8
- 238000007670 refining Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 238000009628 steelmaking Methods 0.000 claims abstract 2
- 238000002844 melting Methods 0.000 claims description 2
- 230000008018 melting Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 3
- 229910052760 oxygen Inorganic materials 0.000 abstract description 3
- 239000001301 oxygen Substances 0.000 abstract description 3
- 238000009434 installation Methods 0.000 abstract 6
- 230000003247 decreasing effect Effects 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000003750 conditioning effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はＡｌ キルド鋼の溶製方法に関するものであ
る。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for producing Al-killed steel.
従来製鋼炉からの溶鋼に加熱精錬設備で、Ｓｉ、Ｍｎ、
Ａｇを添加して脱酸処理したのち、脱ガス設備で調整用
にｌ’ を添加してＡｌ キルド鋼を溶製することが行
われていた。Traditionally, Si, Mn,
After deoxidizing by adding Ag, l' was added for adjustment in a degassing facility to produce Al-killed steel.
しかし、上記方法では、加熱精錬設備段階での溶鋼の酸
素濃度が高く、脱酸力は強いが高価であるｋｅの酸化ロ
スが大きく全体としてＡｌの原単位が高くなるという問
題がある。However, the above method has a problem in that the oxygen concentration of the molten steel at the heating and refining equipment stage is high, and the oxidation loss of ke, which has strong deoxidizing power but is expensive, is large and the overall unit consumption of Al is high.
この発明は、ＡＩＪ の原単位を低減できるようにした
Ａｌキルド鋼の溶製方法を提供することを目的とするも
のである。The object of the present invention is to provide a method for producing Al-killed steel, which makes it possible to reduce the basic unit of AIJ.
この発明は、加熱精錬設備で８＋、Ｍｎ のみを添加
して予備脱酸した後、脱ガス設備でｌ？を添加してＡｌ
キルド鋼を溶製するものである。これによシＡｇの酸
化損失を低減させ、Ａ６原単位の低減を図る。In this invention, after preliminary deoxidation by adding only 8+ and Mn in heating refining equipment, l? Adding Al
It is made of killed steel. This reduces the oxidation loss of Ag and aims to reduce the A6 consumption rate.
加熱精錬設備でＳｔ、Ｍｎ のみを添加して、溶鋼中
の酸素濃度を１００ｐ程度に低下させる。そして脱ガス
設備でチャージ（２５０）ン）当シ１３０にノのＡｌを
添加して、所望のＡｌ キルド鋼を溶製することができ
た。Only St and Mn are added in a heating refining facility to reduce the oxygen concentration in the molten steel to about 100p. Then, by adding a certain amount of Al to the charged (250) steel 130 in a degassing facility, the desired Al-killed steel could be melted.
一方従来法においては、加熱精錬設備で８１．Ｍｎと共
に３００ ＫＰのＡｌ を添加し、脱ガス設備で調整用
に１ＱＩｒｙのＡｇを添加しておシ、合計で３１０にり
のＡｇを使用していた。On the other hand, in the conventional method, 81. 300 KP of Al was added along with Mn, and 1 QIry of Ag was added for conditioning in the degassing facility, using a total of 310 KP of Ag.
従りて本発明方法によシチャージ当シ１８０？Ａｌの使
用量を低減することができ、ｉの原単位を大巾に下げる
ことができた。この場合、８ｉの歩留シが少し下るが、
ｌ に比べて安価でオシコストの面では問題にならない
。Therefore, according to the method of the present invention, the charge amount is 180? The amount of Al used could be reduced, and the basic unit of i could be significantly lowered. In this case, the yield of 8i will drop slightly, but
It is cheaper than l and does not pose a problem in terms of cost.
この発明のＡｇキルド鋼の溶製方法は上記のようなもの
でＡ４の原単位を大巾に低減することができる。The Ag-killed steel melting method of the present invention is as described above, and can greatly reduce the A4 unit consumption.
Claims (1)
設備で処理するに際し、上記加熱精錬設備でＳｉ、Ｍｎ
のみを添加して予備脱酸したのち、脱ガス設備でＡｌを
添加してＡｌキルド鋼を溶製することを特徴とするＡｌ
キルド鋼の溶製方法。When molten steel from a steelmaking furnace is first processed in a heat refining facility and then in a degassing facility, the above heat refining facility removes Si, Mn.
Al-killed steel is produced by pre-deoxidizing by adding Al, and then adding Al in a degassing facility to produce Al-killed steel.
Killed steel melting method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5552286A JPS62214120A (en) | 1986-03-13 | 1986-03-13 | Production of al killed steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5552286A JPS62214120A (en) | 1986-03-13 | 1986-03-13 | Production of al killed steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62214120A true JPS62214120A (en) | 1987-09-19 |
Family
ID=13001043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5552286A Pending JPS62214120A (en) | 1986-03-13 | 1986-03-13 | Production of al killed steel |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62214120A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396637A (en) * | 2019-08-30 | 2019-11-01 | 武安市裕华钢铁有限公司 | The technique of low cost, short route, high efficiency production SPHC |
-
1986
- 1986-03-13 JP JP5552286A patent/JPS62214120A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110396637A (en) * | 2019-08-30 | 2019-11-01 | 武安市裕华钢铁有限公司 | The technique of low cost, short route, high efficiency production SPHC |
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