CN100410411C - Nitrogen-aluminium-ferroalloy without efflorescence - Google Patents
Nitrogen-aluminium-ferroalloy without efflorescence Download PDFInfo
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- CN100410411C CN100410411C CNB2006101520579A CN200610152057A CN100410411C CN 100410411 C CN100410411 C CN 100410411C CN B2006101520579 A CNB2006101520579 A CN B2006101520579A CN 200610152057 A CN200610152057 A CN 200610152057A CN 100410411 C CN100410411 C CN 100410411C
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Abstract
the invention discloses non-powdered N-Al-Fe alloys as steel-smelting deoxidant and alloying agent, which is characterized by the following: adopting Al-Fe alloy with 0.5-15% N to prevent alloying powder; adding one or two element of Mg, Mn and Ti; fitting for the need to manufacture different steel kinds.
Description
Technical field
The present invention relates to a kind of non-chalking nitrogen-aluminum-iron alloy.
Background technology
Aluminium is the important element that is used for steel liquid deoxidation, and it also is used as alloying agents sometimes.Because the proportion of aluminium is less, be easy to swim in above the molten steel, it is bigger that the result makes it when deoxidation and alloying scaling loss.For overcoming the above-mentioned shortcoming of aluminium, people develop aluminum-iron alloy with substituted metal aluminium.But aluminum-iron alloy also has deficiency, when wherein aluminium content is 45-55% (weight), and the easy efflorescence of aluminium-iron and can not using.Though in this alloy, add elements such as Mn, mg, Ti, also fail to solve its pulverizing problem.At present head it off is to make aluminium content in the aluminum-iron alloy avoid the efflorescence district in the phasor with regard to way mainly, but this measure will make aluminium too high levels in the aluminum-iron alloy or low excessively, all not reach good deoxidation effect.Therefore, the appearance of non-chalking aluminum-iron alloy is expected in the present technique field always.
Summary of the invention
The object of the present invention is to provide a kind of non-chalking aluminum-iron alloy.
Aluminum-iron alloy of the present invention contains the Al of 30-70% (gross weight in this alloy is a benchmark, and hereinafter, unless otherwise noted, the content of each element is benchmark in the gross weight of alloy all in this alloy) and the N of 0.5-2.4%.
Above-mentioned aluminum-iron alloy also contains the Mg of 1-10% (weight) and the Fe of surplus, or
Above-mentioned aluminum-iron alloy also contains the Ti of Mn, 1-15% (weight) of 1-20% (weight) and the Fe of surplus; Or
Above-mentioned alloy also contains the Ti of 1-15% (weight) and the Fe of surplus.
Make conventional aluminum-iron alloy contain N, can make the Al of part form AlN, thereby make the content of metallic aluminium in the aluminium-iron that contains N avoid above-mentioned efflorescence district; And the AlN that forms can play the effect of alloying agents, even steel contains N and Al.
Al-N-Fe alloy of the present invention is to produce like this:
Fusing earlier is about the metallic aluminium of total amount 70% in induction furnace or plumbago crucible, is blown into gaseous state N then in the molten bath
2Gas, control nitrogen gas pressure and flow during nitrogen flushing produce degree of being splashed as not make the molten bath.After nitrogen flushing finishes, adding iron (such as, the light scrap of cleaning) and such as Ti-Fe, Mn-Fe or metal M g and remaining aluminium, treat to get final product tapping casting after their fine melts and the homogenizing.
Aluminum-iron alloy of the present invention has good anti-efflorescence ability, and this alloy is stored at normal temperatures more than 1 year and do not seen efflorescence.
Further specify the present invention below by embodiment.
Embodiment
Embodiment 1
Add the 250Kg metal aluminum blocks in the induction furnace, send electrofusion to form the molten bath after, nitrogen blowing in the molten bath is controlled the flow and the pressure of nitrogen, not make molten bath degree of being splashed as.Contain in the molten bath by analysis N amount suitable after, stop nitrogen flushing, in the molten bath, add light scrap and the 100Kg metallic aluminium that 300Kg cleans again, continue to send electrofusion, treat the metal fine melt after, tapping casting.The products obtained therefrom composition is (weight):
Al：53.8％，N：1.07％，Fe：44.13％。
Embodiment 2
Press the step of embodiment 1, but after nitrogen flushing finishes, add the MAGNESIUM METAL of 35Kg, steel scrap 260Kg products obtained therefrom composition as a result is:
Al：53.2％，N：2.4％，Mg：5.2％，Fe：39.8％。
Embodiment 3
Press the step of embodiment 2, aluminium adds 300kg but do not add magnesium after nitrogen flushing finishes, and adds ferro-titanium 20kg and mid-carbon fe-mn 150kg, steel scrap 220kg, the result product composition be:
Al：44.3％，N：1.3％，Ti：2.2％，Mn：12.9％，Fe：36.2％。
Embodiment 4
Press the step of embodiment 3, add aluminium 260kg, but after nitrogen flushing, only add Ti-Fe alloy 50kg, steel scrap 340kg, and do not add low carbon ferromanganese, the products obtained therefrom composition is as a result:
Al：39.4％ N：1.7％ Ti：6.5％ Fe：52.7％
The alloy of the foregoing description gained is stored in the warehouse through not seeing efflorescence in 1 year.
Claims (4)
1. non-chalking nitrogen-aluminum-iron alloy is characterized in that, it contains the Al of 30-70% and the N of 0.5-2.4% in weight percentage.
2. the described non-chalking nitrogen-aluminum-iron alloy of claim 1 is characterized in that, it also contains the Mg of 1-10% and the Fe of surplus in weight percentage.
3. the described non-chalking nitrogen-aluminum-iron alloy of claim 1 is characterized in that, it also contains the Ti of 1-15% and the Fe of surplus in weight percentage.
4. the described non-chalking nitrogen-aluminum-iron alloy of claim 1 is characterized in that, it also contains Ti, the Mn of 1-20% and the Fe of surplus of 1-15% in weight percentage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101520579A CN100410411C (en) | 2006-09-12 | 2006-09-12 | Nitrogen-aluminium-ferroalloy without efflorescence |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101520579A CN100410411C (en) | 2006-09-12 | 2006-09-12 | Nitrogen-aluminium-ferroalloy without efflorescence |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1908215A CN1908215A (en) | 2007-02-07 |
| CN100410411C true CN100410411C (en) | 2008-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
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| CNB2006101520579A Expired - Fee Related CN100410411C (en) | 2006-09-12 | 2006-09-12 | Nitrogen-aluminium-ferroalloy without efflorescence |
Country Status (1)
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| CN (1) | CN100410411C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105734201B (en) * | 2016-04-01 | 2018-05-25 | 武汉宏钢晟科技发展有限公司 | A kind of alfer, preparation method and the usage |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088270A (en) * | 1992-12-18 | 1994-06-22 | 马鞍山钢铁公司 | Non-pulverizing aluminum-iron alloy and production method thereof |
| JP2000063999A (en) * | 1998-08-19 | 2000-02-29 | Mitsubishi Materials Corp | Flat Fe-based alloy powder for magnetic shielding |
| JP2000256730A (en) * | 1999-03-09 | 2000-09-19 | Nisshin Steel Co Ltd | Method for adding nitrogen into molten steel |
| US6623869B1 (en) * | 2001-06-19 | 2003-09-23 | Sumitomo Metal Ind | Metal material having good resistance to metal dusting |
| CN1730701A (en) * | 2005-08-23 | 2006-02-08 | 谢廷声 | Aluminium-magnesium-iron alloy used for steel melt refining agent |
-
2006
- 2006-09-12 CN CNB2006101520579A patent/CN100410411C/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1088270A (en) * | 1992-12-18 | 1994-06-22 | 马鞍山钢铁公司 | Non-pulverizing aluminum-iron alloy and production method thereof |
| JP2000063999A (en) * | 1998-08-19 | 2000-02-29 | Mitsubishi Materials Corp | Flat Fe-based alloy powder for magnetic shielding |
| JP2000256730A (en) * | 1999-03-09 | 2000-09-19 | Nisshin Steel Co Ltd | Method for adding nitrogen into molten steel |
| US6623869B1 (en) * | 2001-06-19 | 2003-09-23 | Sumitomo Metal Ind | Metal material having good resistance to metal dusting |
| CN1463296A (en) * | 2001-06-19 | 2003-12-24 | 住友金属工业株式会社 | Metal material having good resistance to metal dusting |
| CN1730701A (en) * | 2005-08-23 | 2006-02-08 | 谢廷声 | Aluminium-magnesium-iron alloy used for steel melt refining agent |
Non-Patent Citations (4)
| Title |
|---|
| 复合脱氧剂铝硅锰铁合金粉化机理研究. 赵凤俊，韩一茹，金沙江.上海金属，第16卷第3期. 1995 |
| 复合脱氧剂铝硅锰铁合金粉化机理研究. 赵凤俊，韩一茹，金沙江.上海金属，第16卷第3期. 1995 * |
| 新型脱氧剂Al-Fe合金抗粉化问题的探讨及试验. 赵云杰.云南冶金，第26卷第1期. 1997 |
| 新型脱氧剂Al-Fe合金抗粉化问题的探讨及试验. 赵云杰.云南冶金，第26卷第1期. 1997 * |
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| CN1908215A (en) | 2007-02-07 |
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Granted publication date: 20080813 Termination date: 20110912 |