CN101435005A - Low silicon aluminum-iron alloy - Google Patents
Low silicon aluminum-iron alloy Download PDFInfo
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- CN101435005A CN101435005A CNA2007101581172A CN200710158117A CN101435005A CN 101435005 A CN101435005 A CN 101435005A CN A2007101581172 A CNA2007101581172 A CN A2007101581172A CN 200710158117 A CN200710158117 A CN 200710158117A CN 101435005 A CN101435005 A CN 101435005A
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Abstract
A low silicon Fe-Al series alloy is characterized in that the alloy has the following chemical compositions by weight percentage: 30-40 percent of aluminum, 5-10 percent of magnesium, 5-10 percent of calcium, 1-3 percent of strontium, 0.05-0.85 percent of silicon, 0.1-2 percent of cerium, and the balance of Fe. The alloy conducts deep deoxidation by using the activity of alkaline earth metallic elements, not only has better deoxidizing capacity, but also has stronger penetrating power on molten steel due to low melting point and large proportion, effectively removes gas and changes sonims, has refining function on molten steel, nodularization function on devulcanized inclusion and grain refinement function, and contributes to further improvement of steel quality. Simultaneously, lanthanon is added to promote crystalline structure degeneration of steel, thus increasing plastic nature and toughness of the steel.
Description
Affiliated technical field
The present invention relates to a kind of alloy product, particularly a kind of aluminum-iron alloy that is used for the low silicon of steel making deoxidant belongs to steelmaking technical field.
Background technology
The present steel making deoxidant that uses, substantially be ferromanganese, ferrosilicon, silicomanganese and aluminium and aluminium alloy, the iron alloy that contains silicon can be used for killed steel molten steel final deoxygenation, aluminium and magnesium are ideal deoxidation and sweetening agents of steel-making, when particularly aluminium and magnesium being used jointly, they have the obvious synergistic effect, thereby good deoxidation, sweetening effectiveness are arranged.Carry out final deoxygenation of molten steel with Al-Mg-Fe alloy,, also have shortcoming: the deoxidation products AL in the steel though can obtain deoxidation degree more completely
2O
3Be mingled with and be bar shaped,, cause that the mechanical property of steel is had considerable influence because of its plasticity-not; Deoxidation products AL
2O
3The fusing point height easily condenses when pouring molten steel and stop up the mouth of a river etc., and the content of silicon is still very high in the existing Al-Mg-Fe alloy, can not satisfy the requirement to the low-silicon steel final deoxygenation of molten steel.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, composition to existing steel making deoxidant improves, provided a kind of aluminum-iron alloy of low silicon, this iron alloy utilizes the activity of alkali earth metal to carry out degree of depth deoxidation, not only has stronger deoxidizing capacity, and since fusing point low, than great, molten steel is had stronger penetrativity, remove gas effectively and change non-metallic inclusion, molten steel there is the effect of refining effect and desulfurization inclusion balling and crystal grain thinning, helps the further raising of steel quality.
The technical solution that the present invention provides is: the aluminum-iron alloy of this low silicon, be characterized in also including rare-earth element cerium, and its chemical ingredients (weight %) is:
Aluminium 30～40%, magnesium 5～10%, calcium 5～10%,
Strontium 1～3%, silicon 0.05～0.85%, cerium 0.1～2%,
Surplus is Fe
The preparation method of the aluminum-iron alloy of this low silicon that the present invention provides can be made by the master alloy melting that contains said components, and the production method that is adopted is not had special restriction.
Compared with prior art, the invention has the beneficial effects as follows: utilize the activity of alkali earth metal to carry out degree of depth deoxidation, not only has stronger deoxidizing capacity, and since fusing point low, than great, molten steel is had stronger penetrativity, remove gas effectively and change non-metallic inclusion, molten steel there is the effect of refining effect and desulfurization inclusion balling and crystal grain thinning, helps the further raising of steel quality.Simultaneously,, promote the crystal structure sex change of steel, improved the plasticity and the toughness of steel owing to added rare earth element.
Embodiment
Embodiment:
Adopt the chemical ingredients (weight %) of the aluminum-iron alloy of the low silicon of responding to oven process smelting output to be:
Aluminium 30%, magnesium 6%, calcium 8%, strontium 1.5%, silicon 0.06%, cerium 1.2%,
Surplus is Fe.
Claims (1)
1. the aluminum-iron alloy of a low silicon is characterized in that also including rare-earth element cerium, and its chemical ingredients (weight %) is:
Aluminium 30～40%, magnesium 5～10%, calcium 5～10%,
Strontium 1～3%, silicon 0.05～0.85%, cerium 0.1～2%,
Surplus is Fe
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101581172A CN101435005A (en) | 2007-11-15 | 2007-11-15 | Low silicon aluminum-iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101581172A CN101435005A (en) | 2007-11-15 | 2007-11-15 | Low silicon aluminum-iron alloy |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435005A true CN101435005A (en) | 2009-05-20 |
Family
ID=40709641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101581172A Pending CN101435005A (en) | 2007-11-15 | 2007-11-15 | Low silicon aluminum-iron alloy |
Country Status (1)
| Country | Link |
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| CN (1) | CN101435005A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705334B (en) * | 2009-11-13 | 2012-05-23 | 江苏大学 | Aluminum-calcium-magnesium-cerium composite alloy used for strong desulfurization, final desoxidation, and quenching and tempering of liquid steel |
| WO2012129971A1 (en) * | 2011-03-31 | 2012-10-04 | 宝山钢铁股份有限公司 | Alloy for refining precipitates during production of steel and method of using same |
| CN103710583A (en) * | 2013-12-27 | 2014-04-09 | 姚芸 | Magnesium-alumium-iron alloy for desulfurizing and deoxidizing agent and preparation method thereof |
| CN103741020A (en) * | 2013-12-27 | 2014-04-23 | 姚芸 | Preparation method of magnesium-aluminum-iron alloy for desulfurizing and deoxidizing agent |
| CN106811574A (en) * | 2015-12-01 | 2017-06-09 | 镇江市润州金山金属粉末厂 | A kind of high efficiency double deoxidizer |
-
2007
- 2007-11-15 CN CNA2007101581172A patent/CN101435005A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705334B (en) * | 2009-11-13 | 2012-05-23 | 江苏大学 | Aluminum-calcium-magnesium-cerium composite alloy used for strong desulfurization, final desoxidation, and quenching and tempering of liquid steel |
| WO2012129971A1 (en) * | 2011-03-31 | 2012-10-04 | 宝山钢铁股份有限公司 | Alloy for refining precipitates during production of steel and method of using same |
| CN103710583A (en) * | 2013-12-27 | 2014-04-09 | 姚芸 | Magnesium-alumium-iron alloy for desulfurizing and deoxidizing agent and preparation method thereof |
| CN103741020A (en) * | 2013-12-27 | 2014-04-23 | 姚芸 | Preparation method of magnesium-aluminum-iron alloy for desulfurizing and deoxidizing agent |
| CN106811574A (en) * | 2015-12-01 | 2017-06-09 | 镇江市润州金山金属粉末厂 | A kind of high efficiency double deoxidizer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Yang Jun Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Yang Jun Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |