CN1030096A - Si-al-fe composite deoxidizing agent - Google Patents
Si-al-fe composite deoxidizing agent Download PDFInfo
- Publication number
- CN1030096A CN1030096A CN 87101576 CN87101576A CN1030096A CN 1030096 A CN1030096 A CN 1030096A CN 87101576 CN87101576 CN 87101576 CN 87101576 A CN87101576 A CN 87101576A CN 1030096 A CN1030096 A CN 1030096A
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- Prior art keywords
- reductor
- aluminium
- ferro
- aluminum
- composite
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention relates to a kind of complex deoxidizer for steelmaking, constitute by silicon-aluminium-three kinds of metal ingredients of iron, can replace ferro-aluminum reductor and fine aluminium reductor, overcome the efflorescence of ferro-aluminum reductor and fine aluminium reductor, scaling loss is serious, and the ferro-aluminum metal construction is unreasonable, the shortcoming that the aluminium consumption is big, be specially adapted to smelt siliceous common killed steel, the deoxidation in the smelting process of siliceous low alloy steel.
Description
The present invention relates to a kind of composite deoxidant, form, be applicable to the deoxidation in the steel smelting procedure, be particularly useful for the common killed steel of silicon content 〉=0.3 and the deoxidation of siliceous low alloy steel smelting process by AL-FeSi-Fe.
The shortcoming of existing steelmaking aluminum-ferrum deoxidizer or fine aluminium reductor is, the ferro-aluminum efflorescence is serious, and metal construction is unreasonable.The fine aluminium reductor also has proportion little, easily floats over the molten steel surface and causes scaling loss serious, and aluminium pin consumption is big, the shortcoming that recovery rate is low.
The objective of the invention is to overcome the above-mentioned shortcoming in the prior art, provide a kind of, can directly be added in the composite deoxidant in the iron and steel stream than great.
Composite deoxidant of the present invention, major ingredient are silicon, aluminium and iron.Wherein silicon is made reductive agent and reductor in steelmaking process, and aluminium is decided the nitrogen agent as the deoxidation of steel-making, and the refinement crystalline grain of steel is arranged, and improves steel flexible effect at low temperatures, and the effect of iron is to increase ferrosilicoaluminum proportion, strengthens deoxidation effect.
Composite deoxidant of the present invention, its production technique is in proper order:
Feedstock analysis-weigh-prepare burden-feed intake-melting-cast iron-quality test-pulverize-sieve-check the weight-pack-put in storage.
Its melting feeding sequence just is followed successively by according to the metallic substance fusing point:
AL-FeSi-Fe
Various component content scopes are:
Impurity
Si（%） AL（%） Fe（%） C（%） Cu（%）
15～20 35～60 47～17 2.5 0.5
Compare with the fine aluminium reductor with existing ferro-aluminum reductor, composite deoxidant of the present invention can directly add in the iron and steel stream, and is promptly fusible in floating-upward process, reduces aluminium scaling loss 20～50%, reduces ferro-aluminum efflorescence 30～40%, and is easy to storage.
Embodiment one:
Silicone content: 16%
Aluminium content: 48%
Iron level: 33%
Carbon content: 2.5%
Copper content: 0.3%
Embodiment two:
Silicone content: 18%
Aluminium content: 51%
Iron level: 30%
Carbon content: 0.5%
Copper content: 0.3%
Embodiment three:
Silicone content: 20%
Aluminium content: 52%
Iron level: 25%
Carbon content: 2.5%
Copper content: 0.5%
Claims (3)
1, a kind of Si-Al-Fe composite deoxidizing agent, the major ingredient that it is characterized in that described composite deoxidant are three kinds of metallic substance of AL-FeSi-Fe.
2,, it is characterized in that the formula range of its various compositions is according to the composite deoxidant of claim 1:
Si：15～20%
AL：35～60%
Fe：47～17%
C：2.5%
Cu：0.5%
3,, it is characterized in that feeding sequence is followed successively by according to the metallic substance temperature of fusion: AL-FeSi-Fe according to the composite deoxidant of claim 1 and 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101576 CN1030096A (en) | 1987-06-24 | 1987-06-24 | Si-al-fe composite deoxidizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 87101576 CN1030096A (en) | 1987-06-24 | 1987-06-24 | Si-al-fe composite deoxidizing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1030096A true CN1030096A (en) | 1989-01-04 |
Family
ID=4813542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 87101576 Pending CN1030096A (en) | 1987-06-24 | 1987-06-24 | Si-al-fe composite deoxidizing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1030096A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059931C (en) * | 1998-10-22 | 2000-12-27 | 谢廷声 | Additive-aluminium-manganese-titanium alloy used for steelmaking final deoxygenation and low-alloy steel |
| CN1074048C (en) * | 1999-04-08 | 2001-10-31 | 赵玉典 | Composite Si-B-Al-Ca-Fe deoxidant and its preparing process |
| CN102839257A (en) * | 2011-10-24 | 2012-12-26 | 上海中捷有色金属有限公司 | Ferro-silicon-aluminium compound deoxidizer used for steelmaking |
| CN110295311A (en) * | 2019-07-02 | 2019-10-01 | 北京首钢股份有限公司 | A kind of tune aluminium aluminium alloy and preparation method thereof and adjust aluminium method |
-
1987
- 1987-06-24 CN CN 87101576 patent/CN1030096A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1059931C (en) * | 1998-10-22 | 2000-12-27 | 谢廷声 | Additive-aluminium-manganese-titanium alloy used for steelmaking final deoxygenation and low-alloy steel |
| CN1074048C (en) * | 1999-04-08 | 2001-10-31 | 赵玉典 | Composite Si-B-Al-Ca-Fe deoxidant and its preparing process |
| CN102839257A (en) * | 2011-10-24 | 2012-12-26 | 上海中捷有色金属有限公司 | Ferro-silicon-aluminium compound deoxidizer used for steelmaking |
| CN110295311A (en) * | 2019-07-02 | 2019-10-01 | 北京首钢股份有限公司 | A kind of tune aluminium aluminium alloy and preparation method thereof and adjust aluminium method |
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Legal Events
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| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |