CN1068146A - Multiple combined deoxidizing agent - Google Patents
Multiple combined deoxidizing agent Download PDFInfo
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- CN1068146A CN1068146A CN 92105404 CN92105404A CN1068146A CN 1068146 A CN1068146 A CN 1068146A CN 92105404 CN92105404 CN 92105404 CN 92105404 A CN92105404 A CN 92105404A CN 1068146 A CN1068146 A CN 1068146A
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- steel
- reductor
- alloy
- surplus
- deoxidation
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention provides a kind of reductor of making steel usefulness, its main component is that sial ferromanganese forms by the certain ingredients assembly.It is compared with using fine aluminium and Alsimin etc. to have advantages such as deoxidation is rapid, slag easily floats, and steel-making cost is low, steel is good in the present steelmaking process separately.Be fit to any steelworks and smelt multiple steel.
Description
The present invention relates to make steel the reductor of usefulness, especially contain the alloy deoxidizer of elements such as sial ferromanganese.
The steel making deoxidant (comprise and give reductor and end-deoxidizer) that tradition is used generally uses single silicon, manganese or fine aluminium deoxidation, and the shortcoming of this reductor is that deoxidation effect is poor, and it is bad to smelt the steel that, Al
2O
3The content height, impurity is many, and slag is difficult for come-up, so occurred some new reductors in recent years, as " Fe-Al-Si " (Si18-22%, A1 48-52%, the Fe surplus), " Fe-Ba-Al-Si " (wherein Al accounts for 35%), though these alloy deoxidation effects all improve, need with the deal of aluminium big, China's bauxite resource is in short supply, make the alloy deoxidizer costliness, improved the cost of steel-making, and when aluminium content is big, there are crackle and pore in the surface of Finished Steel, has influenced quality product.
The purpose of this invention is to provide and a kind ofly can overcome the weak point of existing reductor and have the high-efficiency steel-smelting reductor that deoxidation is rapid, slag easily floats, steel-making cost is low, steel is good.
In order to reach this purpose, through simultaneous test repeatedly, the contriver finds that the alloy that by a certain percentage Mn, Al, Si, Fe melting are come out replaces fine aluminium, Alsimin, silicomanganese, and is fine as the reductor effect of steel-making.This alloy is bigger to the avidity of oxygen than single S i, Mn and silicomanganese to the avidity of oxygen, and the content of Aluminum in Alloy is also little, but the oxide compound that forms after deoxidation come-up easily, and the clarity of molten steel improves, and the utilization ratio of steel can improve about 1%.
Below be the Chemical Composition of si-al-mn-fe alloy of the present invention:
One, broad spectrum reductor (can be used for ordinary steel, steel alloy)
The smelting process of reductor of the present invention is identical with the smelting technology of common reductor, and the hot stove production of all available various electric furnace or ore deposit after the heat analysis composition is up to standard, can pour in the mould, makes the block of every 2-5 kilogram, to make things convenient for the user.
The application and the effect of above-mentioned series " Fe-Mn-Al-Si " alloy deoxidizer:
Of the present invention 1
#, 2
#, 3
#Alloy can use respectively according to the different steel grades of steel-making, molten steel consumption per ton is 1 kilogram, impurity can be removed light substantially, as inclusion is required strict especially molten steel, can add more than 1 kilogram, need not consider the rate of recovery, the process of adding can get final product the special-less process requirement by common adding in the stove or add in the steel teeming ladle at other alloy of tapping process relaying; 4
#Polynary strong composite deoxidant gives reductor, the end-deoxidizer except can be used as, can replace fine aluminium, Alsimin and silicomanganese to add in the steel melting furnace, it is the novel polynary reductor of steel-making, be again the reductive agent of metal smelting manganese simultaneously, because of this alloy is multiple composite alloy, the molten fusing point of the deoxidation product of si-al-mn-fe alloy is low, particle is big, easily come-up enters in the slag in molten steel, reaches the purpose of removing steel inclusion, 4
#Reductor gives reductor or the end-deoxidizer except can be used as, can replace fine aluminium, Alsimin and silicomanganese to add in the steel melting furnace, it is the novel composite deoxidant of steel-making, be again the reductive agent of metal smelting manganese simultaneously, because of this alloy is multiple composite alloy, the deoxidation product fusing point of si-al-mn-fe alloy is low, particle is big, easily come-up enters in the slag in molten steel, reaches the purpose of removing steel inclusion, 4
#The rate of recovery of reductor can reach Mn85%, Si75%.
It is on probation that above-mentioned serial reductor is paid Guangxi Liuzhou Iron And Steel factory in June, 1992, and with pure metallic aluminum, Alsimin and " Mn-Si " alloy ratio, good with existing reductor deoxidation effect of the present invention, the deoxidation thing easily is fused into the low melting point macrobead, easily come-up is stopped knot, helps improving iron and steel purity and slag fluidity, contrast Finished Steel scrap rate, the present invention is 0.01%, and fine aluminium is 0.14%.
Another characteristics of the present invention are that cost is low, by reductor per ton, 1
#, 2
#, 3
#, 4
#Be 5500 yuan, and " Fe-Al-Si " is 7500 yuan, " Fe-Ba-Al-Si " is 8500 yuan.
Embodiments of the invention
One, 1
#Reductor smelts the 45SiMnP steel alloy for Guangxi Liuzhou Iron And Steel factory by following composition in June, 1992;
Mn10.2, Al10.3, Si13, C0.06, P0.026, S0.021 surplus are iron, and the steel clarity height of producing, lumber recovery improve 1% than fine aluminium and " Fe-Al-Si " alloy respectively.
Two, 4
#Product is smelted the 20MnSi steel alloy to Liuzhou Iron and Steel Works, its composition: Mn65.9, AL7.2, Si18.7, C2.9, P0.03, S0.04, Fe surplus, and the 20MnSi steel alloy of producing, manganese recovery ratio reaches 85%, and the Si75% deoxidation effect is identical with Alsimin.
Claims (2)
1, a kind of multiple combined deoxidizing agent that is used to make steel, it is characterized in that this can be used as pre-deoxidant and end-deoxidizer contain si-al-mn-fe alloy composition following (%):
(1)Mn10-14 Al10-14 Si10-14
C≤1.0 P≤0.05 S≤0.051 Fe surplus
(2)Mn15-30 Al4-10 Si4-10
C≤1.0 P≤0.05 S≤0.05 Fe surplus
(3)Mn8-12 Al3-6 Si8-10
C≤1.0 P≤0.05 S≤0.05 Fe surplus
(4)Mn62-68 Al6-8 Si14-19
C≤3.0 P≤0.05 S≤0.05 Fe surplus.
2, reductor according to claim 1, it is characterized in that with by a certain percentage silicon Al-Mn iron material be put into smelting furnace routinely its composition of smelting process heat analysis get final product casting after up to standard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105404 CN1068146A (en) | 1992-06-29 | 1992-06-29 | Multiple combined deoxidizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105404 CN1068146A (en) | 1992-06-29 | 1992-06-29 | Multiple combined deoxidizing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1068146A true CN1068146A (en) | 1993-01-20 |
Family
ID=4941366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105404 Pending CN1068146A (en) | 1992-06-29 | 1992-06-29 | Multiple combined deoxidizing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068146A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062026C (en) * | 1996-03-18 | 2001-02-14 | 张毅鸣 | Rare-earth-al-Mn alloy |
| CN103233092A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Process for smelting steel special for corrosion-resistant heat exchanger |
| CN103233094A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Smelting process of high-strength alloy steel |
| CN103233095A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Complex deoxidizer as well as preparation method and application thereof |
| CN103243195A (en) * | 2013-04-25 | 2013-08-14 | 浙江大江合金钢钢管有限公司 | Smelting process of steel ingot for wind power generating motor shaft with high performance |
| CN105087863A (en) * | 2015-09-16 | 2015-11-25 | 安徽贝利机械制造有限公司 | Method for preparing metal for drill bit |
-
1992
- 1992-06-29 CN CN 92105404 patent/CN1068146A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062026C (en) * | 1996-03-18 | 2001-02-14 | 张毅鸣 | Rare-earth-al-Mn alloy |
| CN103233092A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Process for smelting steel special for corrosion-resistant heat exchanger |
| CN103233094A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Smelting process of high-strength alloy steel |
| CN103233095A (en) * | 2013-04-25 | 2013-08-07 | 浙江大江合金钢钢管有限公司 | Complex deoxidizer as well as preparation method and application thereof |
| CN103243195A (en) * | 2013-04-25 | 2013-08-14 | 浙江大江合金钢钢管有限公司 | Smelting process of steel ingot for wind power generating motor shaft with high performance |
| CN103243195B (en) * | 2013-04-25 | 2015-02-11 | 浙江大江合金钢钢管有限公司 | Smelting process of steel ingot for wind power generating motor shaft with high performance |
| CN103233094B (en) * | 2013-04-25 | 2015-05-13 | 浙江大江合金钢钢管有限公司 | Smelting process of high-strength alloy steel |
| CN103233092B (en) * | 2013-04-25 | 2015-07-01 | 浙江大江合金钢钢管有限公司 | Process for smelting steel special for corrosion-resistant heat exchanger |
| CN105087863A (en) * | 2015-09-16 | 2015-11-25 | 安徽贝利机械制造有限公司 | Method for preparing metal for drill bit |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |