CN1908213A - Composite alloy for steel-making deoxidization and microalloying - Google Patents
Composite alloy for steel-making deoxidization and microalloying Download PDFInfo
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- CN1908213A CN1908213A CN 200610152055 CN200610152055A CN1908213A CN 1908213 A CN1908213 A CN 1908213A CN 200610152055 CN200610152055 CN 200610152055 CN 200610152055 A CN200610152055 A CN 200610152055A CN 1908213 A CN1908213 A CN 1908213A
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- deoxidation
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Abstract
the invention discloses a deoxidizing and micro-alloy metallic compound alloy, which consists of 30-65% aluminum and 1-10% magnesium as base alloy. the niobium, vanadium, titanium and calcium are added in the basic alloy according to need, which satisfies micro-alloy request.
Description
Technical field
The present invention relates to a kind of composite alloy that is used for deoxidation in steel making and microalloying.
Technical background
Along with the development of technology is more and more higher to the performance requriements of steel, not only require steel that high strength is arranged, also require to have good plasticity and toughness and good processing characteristics.For satisfying the requirement of technical development to iron and steel, producing microalloyed steel is one of approach.
Add elements such as niobium, titanium, vanadium when at present, producing micro-alloyed steel and all be by adding one-component in molten steel alloy as: ferro-niobium, ferrotianium, vanadium iron are finished.All there is certain shortcoming separately in this class alloy, and the oxygen in first procatarxis of wherein some and the molten steel has very strong chemical affinity, thereby most ofly when adding in the molten steel participates in deoxidation and enter in the steel seldom, so recovery rate is lower.If with itself and aluminium component alloy, then aluminium wherein participates in deoxidation and the recovery rate of these elements is improved; And for example niobium adds in the molten steel, and it cracks continuously cast bloom, just can overcome this shortcoming and add a spot of titanium.When smelting micro-alloyed steel, except fundamental elements such as aluminium, magnesium, also will add auxiliary elements such as niobium, titanium, vanadium, calcium, manganese, but add-on wants suitable, otherwise can influence the quality of steel.As: aluminium is the good material that makes steel-deoxidizing and adjust crystal grain, and it can also combine with nitrogen, eliminates the harm of nitrogen, improves impelling strength.But the too high easy formation Al of content
2O
3Be mingled with, reduce the quality of steel.Therefore, when producing micro-alloyed steel, must with these elements reasonably, the collocation of science, adjustment, these elements are produced work in coordination with little in molten steel because of effect, give full play to speciality separately.In addition, be to use aluminium deoxidation earlier at the technology of present production micro-alloyed steel, add the shortcoming of the required element of various microalloyings then respectively, the composite alloy that is provided for deoxidation and microalloying is very necessary.
Summary of the invention
The object of the present invention is to provide the composite alloy that is used for deoxidation in steel making and microalloying.Composite alloy of the present invention contains (% weight is benchmark in the gross weight of this alloy, down with) Al, 30-65%, Mg, and 1-10%, it is a basic alloy of the present invention.
Above-mentioned basic alloy also can contain Ti, the Fe of 1-15% and surplus.Or
Above-mentioned basic alloy also can contain Nb, 1-10%, Ti, the Fe of 1-10% and surplus.Or
Above-mentioned basic alloy also can contain V, 1-10%, Mn, the Fe of 1-15% and surplus.Or
Above-mentioned basic alloy also can contain Ca, the Fe of 1-15% and surplus.
Al, Mg are the most basic elements in above-mentioned alloy, and they have guaranteed the deoxidizing capacity of this alloy and the basic mechanical performance of steel, and the combination of the two, make its deoxidizing capacity than it any one deoxidizing capacity for strong.Other auxiliary element then guarantees the various mechanical properties of steel.Can contain the Mn of 2-20% in these alloys, it can participate in the alloying of steel, and the density of alloy is strengthened.
The Ti that further contains specified quantity in comprising the alloy of fundamental element can make it to be suitable for producing the freight container slab;
In this comprises the alloy of fundamental element, further contain Nb, Ti, make it to be suitable for production high strength gas pipeline steel;
In this comprises the alloy of fundamental element, further contain V and Mn, make it to be suitable for producing building structural steel.
In this comprises the alloy of basic element, further contain Ca, make it to be suitable for producing railroad car plate steel.
The composite alloy that is used for deoxidation and molten steel microalloying of the present invention guarantees deoxidizing capacity with base stock Al and Mg wherein, and components such as additional component such as Ti, Nb, V, Ca, Mn can satisfy the demand of different micro-alloyed steels on mechanics.
Preparation method of the present invention is as follows:
The production basic alloy: earlier with the total consumption of aluminium 70%, all steel scrap melts in electric furnace, treat its fine melt after, add remaining 30% aluminium and magnesium and continue fusing, come out of the stove casting mold, chemical examination, warehouse-in behind the fine melt.
According to the specification requirement of different composite alloys, in this above-mentioned basic alloy, be added into assistant metal elements such as niobium, titanium, vanadium, calcium, manganese again, all the other processing steps are identical during with the smelting basic alloy.
Embodiment
Further specify the present invention below by embodiment.
Embodiment 1:
Feed intake by 500kg, weigh up the 230kg metal aluminum blocks, with wherein 70% be that the 175kg aluminium block adds in the induction furnace, add the low-carbon (LC) light scrap 250kg of cleaning again, send electrofusion then.After treating the furnace charge fine melt, add remainingly 30%, promptly 75Kg aluminium block and magnesium ingot 20kg continue fusing, treat its fine melt after, come out of the stove, casting, the gained alloy is a basic alloy of the present invention, it consists of:
Al：45.3％，Mg：3.1％?Fe：53.4％。
Embodiment 2:
With the technology alloy smelting identical with embodiment 1, but the total amount of aluminium is 220kg, magnesium 30kg, steel scrap 150kg.(after adding steel scrap, add the Ti-Fe100kg that contains Ti25% again and obtain a kind of alloy of container plate with steel that be suitable for producing at last, it consists of Al:43.8%, Mg:3.5%, Ti:54.8%, Fe:46.8%.
Embodiment 3:
With the technology alloy smelting identical with embodiment 1, but with aluminium ingot 180kg, magnesium ingot 20Kg, steel scrap 200kg (containing Fe60kg among Nb-Fe and the Ti-Fe), after adding steel scrap, adding and containing Nb is that to contain Ti be 25% Ti-Fe alloy 50kg for 50% Nb-Fe50kg.;
Finally obtain a kind of alloy that is suitable for the produce hydrocarbons pipeline steel, it consists of:
Al：35.8％，Mg：3.4％，Ti：2.5％，Nb：4.8％，Fe：53.2％。
Embodiment 4
With the technology alloy smelting identical with embodiment 1, but with aluminium ingot 200kg, magnesium ingot 20kg, steel scrap 130kg, to contain V be 40% V-Fe100kg, contain Mn is 70% Mn-Fe50kg, obtains finally being applicable to the alloy of producing construction(al)steel that it consists of:
Al：38.6％、Mg：3.2％、V：35.2％、Mn：34.9％、Fe：47.8％。
Embodiment 5
With the technology alloy smelting identical with embodiment 1, but with aluminium ingot 300kg, steel scrap 155kg, magnesium ingot 25kg, calcium metal 20kg, finally obtain being applicable to the alloy of producing the train case slab, it consists of: Al:59.6%, Mg:4.1%, Ca:3.9%, Fe:31.6%.
Claims (5)
1, be used for the composite alloy of deoxidation in steel making and molten steel microalloying, it is characterized in that: it contains the Al of (weight percent): 30-65%, the Mg of 1-10%.
2, the composite alloy that is used for deoxidation in steel making and molten steel microalloying as claimed in claim 1, it is characterized in that: it also contains: the Ti of 1-15% (weight) and the Fe of surplus.
3, the composite alloy that is used for deoxidation in steel making and molten steel microalloying as claimed in claim 1, it is characterized in that: it also contains: the Nb of 1-10%, the Ti of 1-10% and the Fe of surplus.
4, the composite alloy that is used for deoxidation in steel making and molten steel microalloying as claimed in claim 1, it is characterized in that: it also contains: the V of 1-10%, the Fe of 1-15%Mn and surplus.
5, the composite alloy that is used for deoxidation in steel making and molten steel microalloying as claimed in claim 1, it is characterized in that: it also contains: the Fe of 1-15%Ca and surplus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200610152055A CN100595304C (en) | 2006-09-12 | 2006-09-12 | Composite alloy for steel-making deoxidization and microalloying |
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| Application Number | Priority Date | Filing Date | Title |
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| CN200610152055A CN100595304C (en) | 2006-09-12 | 2006-09-12 | Composite alloy for steel-making deoxidization and microalloying |
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| Publication Number | Publication Date |
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| CN1908213A true CN1908213A (en) | 2007-02-07 |
| CN100595304C CN100595304C (en) | 2010-03-24 |
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| CN200610152055A Expired - Fee Related CN100595304C (en) | 2006-09-12 | 2006-09-12 | Composite alloy for steel-making deoxidization and microalloying |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828071A (en) * | 2011-06-13 | 2012-12-19 | 谢应旭 | Aluminium calcium vanadium ferrum alloy used for smelting steel, and preparation method thereof |
| CN103911542A (en) * | 2014-04-08 | 2014-07-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium-magnesium composite core-spun yarn and application thereof, titanium alloying molten steel and preparation method thereof, and titanium-containing alloy steel |
| CN105671556A (en) * | 2016-01-30 | 2016-06-15 | 淄博华鸣炭素材料有限公司 | High-purity carbon deoxidizing agent |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB268716A (en) * | 1926-04-03 | 1928-01-02 | Krupp Ag | Improvements in a method of making iron and steel or iron alloys and steel alloys |
| CN1250105A (en) * | 1999-11-10 | 2000-04-12 | 韦世鹤 | Stainless steel refining agent and its usage in smelting stainless steel |
| CN1122720C (en) * | 2001-03-13 | 2003-10-01 | 郭庆城 | Aluminium-magnesium-titanium-iron alloy for deoxygenation and alloying of steel production |
| CN1122721C (en) * | 2001-03-13 | 2003-10-01 | 郭庆城 | Aluminium-manganese-titanium-magnesium-iron alloy for deoxygenation and alloying of steel production |
| CN1436863A (en) * | 2003-03-03 | 2003-08-20 | 李永毅 | Composite deoxygenated AlMnTiMg alloy |
| CN1439727A (en) * | 2003-03-24 | 2003-09-03 | 郭庆成 | Al-Ca-Mg-Fe alloy for final deoxidisation of molten steel and its preparation |
| CN100424212C (en) * | 2005-08-23 | 2008-10-08 | 谢廷声 | Aluminium-magnesium-iron alloy used for steel melt refining agent |
| CN1327007C (en) * | 2005-10-26 | 2007-07-18 | 李兴有 | Al-Mg-Ca-Fe alloy contg. micro-carbon, low silicon, low phosphorous, low-sulphur used for steelmaking |
| CN1807657A (en) * | 2006-02-09 | 2006-07-26 | 谢廷声 | Steel-smelting alterant for molten steel refining |
-
2006
- 2006-09-12 CN CN200610152055A patent/CN100595304C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828071A (en) * | 2011-06-13 | 2012-12-19 | 谢应旭 | Aluminium calcium vanadium ferrum alloy used for smelting steel, and preparation method thereof |
| CN103911542A (en) * | 2014-04-08 | 2014-07-09 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium-magnesium composite core-spun yarn and application thereof, titanium alloying molten steel and preparation method thereof, and titanium-containing alloy steel |
| CN103911542B (en) * | 2014-04-08 | 2015-09-16 | 攀钢集团攀枝花钢铁研究院有限公司 | Titanium magnesium composite core-spun yarn and application thereof and Ti Alloying molten steel and preparation method thereof and a kind of titaniferous steel alloy |
| CN105671556A (en) * | 2016-01-30 | 2016-06-15 | 淄博华鸣炭素材料有限公司 | High-purity carbon deoxidizing agent |
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| CN100595304C (en) | 2010-03-24 |
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