CN101509094A - Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting - Google Patents
Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting Download PDFInfo
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- CN101509094A CN101509094A CNA2009100109588A CN200910010958A CN101509094A CN 101509094 A CN101509094 A CN 101509094A CN A2009100109588 A CNA2009100109588 A CN A2009100109588A CN 200910010958 A CN200910010958 A CN 200910010958A CN 101509094 A CN101509094 A CN 101509094A
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Abstract
The invention provides an Si-Al-Ba-Ca rare-earth ferroalloy used for steel-making, which adopts silica, alumina, barite, quicklime or calcium carbide as raw materials and carbon as a reducing agent and is formed by smelting the materials and the agent in a submerged arc furnace. The proportioning by weight of the chemical composition is as follows: 30-50% of silicon, 5-30% of aluminum, 5-30% of barium, 3-30% of calcium, 1-15% of rare-earth and iron and inevitable impurities being the balance. The rare-earth ferroalloy can change the nonmetal inclusions in the steel while steelmaking deoxidization and improve the quality of the steel, thus is an efficient steelmaking deoxidization modifier.
Description
One, technical field
The present invention relates to field of metallurgy, is the silicon-aluminum-barium-calcium rare earth iron alloy that is used for the deoxidation in steel making alterant.
Two, technical background
The used reductor kind of deoxidation in steel making is more.As: composite deoxidants such as ferro-aluminum, ferrosilicoaluminum, aluminium ferromanganese and sial calcium.In order to improve the quality of steel, change form, quantity and the size of nonmetallic inclusionsin steel, best element is a rare earth, it has purification and metamorphism in steel-making.Rare earth is that active element and oxygen, sulphur have very strong avidity, easily produces sulphur during steel-making and assembles, and influences the quality of steel on the contrary, so steel-making is seldom used at present, adopts other modes to solve nonmetallic inclusionsin steel.In a word, steel-making at present will be used the reductor deoxidation, separates nonmetal inclusion in the steel with other methods again.
Three, summary of the invention
The present invention seeks at deoxidation in steel making and spoilage problems, propose to change nonmetal inclusion in the steel again simultaneously, improve type material---the silicon-aluminum-barium-calcium rare earth iron alloy of the quality of steel at deoxidation in steel making.Just in reductor, add alterant---rare earth, deoxidation in steel making is gone bad finish by a kind of alloy.I once studied and added rare earth (application number: 20060152056.4), but lack calcium constituent in the alloy in the reductor.Calcium contents has tangible influence to the rare earth solid solution capacity in the steel, and the solid solution rare earth in the steel can improve the tissue and the performance of steel.So develop silicon-aluminum-barium-calcium rare earth iron alloy again, silicon-aluminum-barium-calcium rare earth iron alloy is a kind of composite alloy of multielement in addition, and these elements elements such as silicon, aluminium, barium in the deoxidation in steel making process interact, and strengthen its deoxidizing capacity.Silicon-aluminum-barium-calcium rare earth iron alloy of the present invention is a kind of high efficiency deoxidiser alterant.
Silicon-aluminum-barium-calcium rare earth iron alloy of the present invention is with the hot stove production in ore deposit.Main raw material has silica (SiO
2), aluminum oxide (Al
2O
3), barite (BaSO
4), unslaked lime (CaO) or calcium carbide (CaC
2), rare earth ore concentrate (REO), steel cuttings or ferric oxide etc.Reductive agent is carbon (coke, a coal etc.).If electricity consumption masonry raw material is smelted calcium containing alloy, reductive agent can reduce in right amount, utilizes the carbon in the calcium carbide to make reductive agent.
Also can use remelting process: raw silicon, aluminium, silicon barium iron, calcium, rare earth silicon etc. are pressed the alloy ingredient proportioning in smelting furnace, alloy is made in remelting.
Silicon-aluminum-barium-calcium rare earth iron alloy of the present invention, it contains the chemical component weight proportioning: silicon 30-50%, aluminium 5-30%, barium 5-30%, calcium 3-30%, rare earth 1-15%, surplus be iron and in impurity such as evitable carbon, sulphur, phosphorus.
Four, embodiment
The composition of each element in the silicon-aluminum-barium-calcium rare earth iron alloy of the present invention should be adjusted in above-mentioned scope according to the steel-making needs.As when being used for weathering steel, it is high that rare earth and calcium contents are wanted.Use ordinary steel, silicon, aluminium, barium content want high.What of each element in the alloy are by containing each element raw material allotment.
Embodiment 1: silicon-aluminum-barium-calcium rare earth iron alloy of the present invention, its weight proportion: silicon 30%, aluminium 10%, barium 5%, calcium 30%, rare earth 15%, surplus are iron and impurity.
Embodiment 2: silicon-aluminum-barium-calcium rare earth iron alloy of the present invention, its weight proportion: silicon 50%, aluminium 5%, barium 30%, calcium 3%, rare earth 1%, surplus are iron and unavoidable impurities.
Embodiment 3: the silicon-aluminum-barium-calcium rare earth iron alloy of wood invention, its weight proportion: silicon 45%, aluminium 10%, barium 15%, calcium 15%, rare earth 5%, surplus are iron and unavoidable impurities.
Embodiment 4: the embodiment of the invention 3 silicon-aluminum-barium-calcium rare earth iron alloy production technique.Proportioning raw materials: silica 80kg, aluminum oxide 25kg, barite 30kg, calcium carbide 35kg, rare earth ore concentrate 10kg, reductive agent coke 68kg, steel cuttings 5kg.In the hot stove in ore deposit, smelted 3 hours, and came out of the stove, ingot casting, chemical examination.Through chemically examining the chemical ingredients of this alloy: Si 44.26%, Al 9.12%, Ba 14.13%, Ca 16.06%, RE 4.70%, Fe 10.14%, C 0.4%, S 0.04%, P 0.04%.The same substantially ferro-silicon of its production technique.
Silicon-aluminum-barium-calcium rare earth iron alloy of the present invention and present technology ratio, it can change in the steel again nonmetal in deoxidation in steel making Being mingled with, improving the quality of steel, namely is that deoxidier is again alterant.
Claims (1)
1, the silicon-aluminum-barium-calcium rare earth iron alloy that is used for deoxidation in steel making, it is characterized in that it contains following weight proportion substantially and form: silicon 30-50%, aluminium 5-30%, barium 5-30%, calcium 3-30%, rare earth 1-15%, surplus is iron and inevitable impurity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100109588A CN101509094A (en) | 2009-04-01 | 2009-04-01 | Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2009100109588A CN101509094A (en) | 2009-04-01 | 2009-04-01 | Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting |
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| Publication Number | Publication Date |
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| CN101509094A true CN101509094A (en) | 2009-08-19 |
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| CNA2009100109588A Pending CN101509094A (en) | 2009-04-01 | 2009-04-01 | Silicon-aluminum-barium-calcium rare earth iron alloy for steel-smelting |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838717A (en) * | 2010-03-03 | 2010-09-22 | 包头市神润高新材料股份有限公司 | Rare earth Al-Ba-Ca-Fe alloy |
| CN101871034A (en) * | 2010-06-08 | 2010-10-27 | 上虞新达精密铸造有限公司 | Deoxidizer |
| CN102212649A (en) * | 2011-04-15 | 2011-10-12 | 谢廷声 | Iron alloy for silicon-based steel making composite deoxidizer and preparation method of iron alloy |
| CN102559996A (en) * | 2011-12-31 | 2012-07-11 | 淅川县森丽钢铁炉料有限公司 | New silicon-aluminum-barium-calcium multicomponent deoxidation alloy for steelmaking and preparation technology thereof |
| RU2497955C1 (en) * | 2012-02-17 | 2013-11-10 | Закрытое акционерное общество "ФЕРРОСПЛАВ" | Out-of-furnace treatment method for carbon and low-alloy steels |
| CN103789641A (en) * | 2014-01-16 | 2014-05-14 | 安徽省杨氏恒泰钢管扣件加工有限公司 | High-strength stainless steel pipe material and preparation method thereof |
| 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 |
| CN111961805A (en) * | 2020-09-16 | 2020-11-20 | 燕山大学 | High manganese steel liquid purification method, product and application |
-
2009
- 2009-04-01 CN CNA2009100109588A patent/CN101509094A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101838717A (en) * | 2010-03-03 | 2010-09-22 | 包头市神润高新材料股份有限公司 | Rare earth Al-Ba-Ca-Fe alloy |
| CN101871034A (en) * | 2010-06-08 | 2010-10-27 | 上虞新达精密铸造有限公司 | Deoxidizer |
| CN102212649A (en) * | 2011-04-15 | 2011-10-12 | 谢廷声 | Iron alloy for silicon-based steel making composite deoxidizer and preparation method of iron alloy |
| CN102212649B (en) * | 2011-04-15 | 2012-11-07 | 谢廷声 | Iron alloy for silicon-based steel making composite deoxidizer and preparation method of iron alloy |
| CN102559996A (en) * | 2011-12-31 | 2012-07-11 | 淅川县森丽钢铁炉料有限公司 | New silicon-aluminum-barium-calcium multicomponent deoxidation alloy for steelmaking and preparation technology thereof |
| RU2497955C1 (en) * | 2012-02-17 | 2013-11-10 | Закрытое акционерное общество "ФЕРРОСПЛАВ" | Out-of-furnace treatment method for carbon and low-alloy steels |
| CN103789641A (en) * | 2014-01-16 | 2014-05-14 | 安徽省杨氏恒泰钢管扣件加工有限公司 | High-strength stainless steel pipe material and preparation method thereof |
| 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 |
| CN111961805A (en) * | 2020-09-16 | 2020-11-20 | 燕山大学 | High manganese steel liquid purification method, product and application |
| CN111961805B (en) * | 2020-09-16 | 2021-04-27 | 燕山大学 | High manganese steel liquid purification method, product and application |
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Open date: 20090819 |