CN1844412A - High-manganese low-carbon composite alloy and method for preparing same - Google Patents
High-manganese low-carbon composite alloy and method for preparing same Download PDFInfo
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- CN1844412A CN1844412A CN 200610020955 CN200610020955A CN1844412A CN 1844412 A CN1844412 A CN 1844412A CN 200610020955 CN200610020955 CN 200610020955 CN 200610020955 A CN200610020955 A CN 200610020955A CN 1844412 A CN1844412 A CN 1844412A
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Abstract
The invention discloses a kind of high manganese and low carbon composition alloy and the preparation method of it, the composition alloy contain the percentage by weight component as follow: Mn 70~75, Si 11~17, Al 7~14, P<0.2, C<0.3, S<0.03,surplus is Fe. The invention of composition alloy component proportioning science and rational, specific weight controlling strict, the method can deoxidize efficient for liquid steel, remove the foreign substance in liquid steel and deoxidize rapidly, make the steel slag easily floated upward and removed to obtain high degree of purity liquid steel, the composition alloy can be used as deoxidant in smelting kinds of steel, especially suitable for smelting conduit wiring steel, bridge and canal steel and high-strength ship plate steel that need strength deoxidation capacity, the composition alloy can reach high deoxidation effect.
Description
(1) technical field:
The present invention relates to make steel the reductor, particularly high-manganese low-carbon composite alloy of usefulness; The invention still further relates to the preparation method of this high-manganese low-carbon composite alloy.
(2) background technology:
Traditional steel making deoxidant generally uses single fine aluminium or steel core aluminium, ferro-aluminum deoxidation, the reductor of single element, deoxidation effect is not good, and it is many to smelt the nonmetallic inclusionsin steel that comes out, and steel is bad, and the impurity in the steel is difficult for come-up to be removed, and causes the molten steel recovery rate low; Particularly carry out deoxidation with fine aluminium, because the aluminium autologous density is less, in the melting deoxidation process, buoyancy in the molten steel is bigger, aluminium can only float on molten steel surface and be difficult for entering molten steel inside, so just makes most of aluminium oxidized in air, thereby has seriously influenced the utilization ratio of aluminium, increase the consumption of aluminium, improved production cost.Fast development along with China's Iron And Steel Industry, the reductor of steel-making industry is by single silicon, manganese or fine aluminium deoxidation develop into the compound aluminium silicon manganese dioxidation of using, as application number be: 200510012548.9, name is called the Chinese invention patent of " aluminium silicon manganese dioxidation briquette ", it discloses a kind of by aluminium, silicon, the manganese alloy deoxidation press cake, this deoxidation press cake is by aluminium, silicon, manganese and the carbon that contains thereof, sulphur, phosphorus, iron, after water is allocated in proportion, add caking agent, abundant mixing, pour compression moulding in the die forming machine into, oven dry is removed moisture content and is made, and the component and the content of the deoxidation press cake of gained consist of (by weight percentage): aluminium 10～40%, silicon 5～15%, manganese 30～50, carbon≤3.5, sulphur≤0.05, phosphorus≤0.15, iron surplus.And for example application number is: 94111237.3, name is called the Chinese invention patent of " being used for ferroaluminium of aluminium killed steel deoxidation and preparation method thereof ", disclosing a kind of its weight percent consists of: aluminium 40～50%, iron 48～58%, the ferroaluminium reductor of surplus impurity, its melting method is: drop into the aluminium material, oxidizer, reductive agent, add alkaline slag former, drop into the aluminium material, stir slagging-off and can come out of the stove.Though the deoxidation effect of above-mentioned reductor increases, but the consumption of aluminium is still bigger, and the price height of aluminium and China's bauxite resource are in short supply, make that the cost of preparation reductor is still very high, the also corresponding increase of cost of steel-making, and these reductors all are to be feedstock production with alloying elements such as silicomanganese or ferro-silicons, because the foreign matter content in the alloying element is big, thereby caused also containing in the resulting reductor more impurity, and some impurity the time is stranded in easily in steel-making and is difficult in the molten steel remove, and directly has influence on the quality of gained steel.
(3) summary of the invention:
The present invention will disclose the high-manganese low-carbon composite alloy that a kind of deoxidation effect is good, production cost is low; The present invention also will disclose the preparation method of this high-manganese low-carbon composite alloy.
High-manganese low-carbon composite alloy of the present invention is characterized in that comprising following component by weight percent meter:
Mn 70～75； Si 11～17； Al 7～14；
P＜0.2; C＜0.3; S＜0.03; The Fe surplus.
The preparation method of high-manganese low-carbon composite alloy of the present invention can adopt conventional or traditional steel-making to be prepared with the preparation method of reductor, also can be prepared as follows, and this method steps is as follows:
1) weigh according to the materials proportioning metallic aluminium of the ferrosilicon of the Pure Silicon Metal of the manganese metal of manganese content＞99%, silicon content＞99% or silicon content＞70%, aluminum content＞99% is standby;
2) manganese metal, Pure Silicon Metal are dropped into melting in the smelting furnace, get liquation A; The smelting furnace smelting temperature generally can be controlled in 1300～1400 ℃;
3) deslagging agent or alterant are dropped among the liquation A, stir and remove residue, get liquation B; The weight part proportioning of described deslagging agent or alterant and liquation A is generally 1～3: 500; Described deslagging agent and alterant can adopt at random deslagging agent or alterant, as iron scale, quartz sand etc., and for reaching better slagging-off effect, the ternary alterant that the powerful deslagging agent of the IRQT type that preferably adopts Zhangjagang City solvent factory to produce and this factory produce;
4) get metallic aluminium and drop among the liquation B and carry out melting, drop into alterant, refining agent then, stir and remove residue, liquation C; Described alterant, refining agent are preferably JPC1-2001 refining agent and the SRWB that Zhangjiagang solvent factory produces
3The ternary alterant; The weight part proportioning of described refining agent and liquation B, alterant and liquation B is generally 1～1.5: 500;
5) with liquation C moldings formed therefrom, cooling obtains high-manganese low-carbon composite alloy, and its weight amount percentage composition is: Mn 70～75; Si 11～17; Al 7～14; P＜0.2; C＜0.3; S＜0.03; The Fe surplus.
High-manganese low-carbon composite alloy of the present invention is different with traditional composite steel-smelting deoxygenated alloy, be not to be feedstock production with silicomanganese or the lower low-grade mineral aggregate of metal content, but be that feedstock production forms with the manganese metal of purity height, manganese content＞99% that foreign matter content is low, the metallic aluminium of aluminum content＞99%, the Pure Silicon Metal of silicon content＞99%, particularly carbon, phosphorus content are extremely low for the content of impurity in the composite alloy of gained; And the collocation of each metal in the composite alloy and ratio are all very suitable, its proportion is greater than slag proportion, but smaller than the proportion of molten steel, and after composite alloy of the present invention drops into molten steel, can be sunken to the molten steel bottom earlier fully, slowly float again, and the difference between itself and the molten steel proportion and the temperature of molten steel, determined the ascent rate of composite alloy, composite alloy can fuse, bring into play desoxydatoin while floating, when treating that it floats to molten steel surface, the desoxydatoin of composite alloy is also brought into play substantially and is finished; Particularly wherein contained metallic aluminium, because the ascent rate of its ratio shared in composite alloy and composite alloy, make the deoxidizing capacity of metallic aluminium when composite alloy floats, to give full play to, when composite alloy floats to molten steel surface, the desoxydatoin of aluminium is also just in time brought into play and is finished, metallic aluminium just can not cause waste in the molten steel surface oxidation by air like this, has obtained real utilization; In addition, composite alloy of the present invention also can play metal additive, and it has also added and made steel required various trace elements when molten steel is carried out deoxidation.The set of dispense of composite alloy of the present invention than scientific and reasonable, specific gravity control is strict, makes it effectively carry out deoxidation to molten steel, fully removes impurity wherein, and its deoxidation rapidly, make slag easily float, remove, obtain the high molten steel of purity.Reductor when composite alloy of the present invention can be used as the various steel of smelting, being particularly suitable for is that deoxidizing capacity when smelting pipe line steel, bridge pipe line steel, high-strength ship plates is very strong, can reach good deoxidation effect.
(4) embodiment:
Embodiment 1:
1) weigh according to the materials proportioning metallic aluminium of the Pure Silicon Metal of the manganese metal of 367kg manganese content＞99%, 58kg silicon content＞99%, 90kg aluminum content＞99% is standby;
2) manganese metal and Pure Silicon Metal are dropped into melting in the smelting furnace, smelting temperature is 1300 ℃, gets liquation A;
3) the powerful deslagging agent of the IRQT type that 1kg Zhangjagang City solvent factory is produced drops among the liquation A, stirs and remove residue, gets liquation B;
4) get metallic aluminium and drop among the liquation B and carry out melting, drop into the refining agent 1kg that Zhangjiagang solvent factory produces and the SRWB of this factory again
3Type ternary alterant 1kg stirred 5 minutes, removed residue, got liquation C;
5) liquation C is cast in the ingot mould, treat its cooling, obtain high-manganese low-carbon composite alloy, its weight amount percentage composition is: Mn 70%; Si 11%; Al 17%; P＜0.2%; C＜0.3%; S＜0.03%; Surplus is Fe.
Embodiment 2:
1) takes by weighing raw material by weight percentage, get the manganese metal of 394kg manganese content＞99%, the metallic aluminium of 40kg aluminum content＞99%, the Pure Silicon Metal of 58kg silicon content＞99%;
2) manganese metal and Pure Silicon Metal are dropped into melting in the smelting furnace, smelting temperature is 1300 ℃, gets liquation A;
3) the powerful deslagging agent of the IRQT type that 1kg Zhangjagang City solvent factory is produced drops among the liquation A, stirs and remove residue, gets liquation B;
4) get metallic aluminium and drop among the liquation B and carry out melting, drop into the JRC1-2001 standard refining agent 1kg that Zhangjiagang solvent factory produces and the SRWB of this factory again
3Type ternary alterant 1kg stirred 5 minutes, removed residue, got liquation C;
5) liquation C is cast in the ingot mould, treat its cooling, obtain high-manganese low-carbon composite alloy, its weight amount percentage composition is: Mn 70%; Si 11%; Al 17%; P＜0.2%; C＜0.3%; S＜0.03%; Surplus is Fe.
Embodiment 3:
1) weigh according to the materials proportioning metallic aluminium of the Pure Silicon Metal of the manganese metal of 394kg manganese content＞99%, 90kg silicon content＞99%, 40kg aluminum content＞99% is standby;
2) manganese metal and Pure Silicon Metal are dropped into melting in the smelting furnace, smelting temperature is 1400 ℃, gets liquation A;
3) SRWB that 1kg Zhangjagang City solvent factory is produced
3Type ternary alterant drops among the liquation A, stirs 5 minutes, removes residue then, gets liquation B;
4) get metallic aluminium and drop among the liquation B and carry out melting, add the SRWB that JRC1-2001 standard refining agent that 1kg Zhangjiagang solvent factory produces and this factory of 1kg produce
3The ternary alterant is cooled to 1000 ℃ then and stirred 5 minutes, residue is removed again, and gets liquation C;
5) liquation C is cast in the ingot mould, treat its cooling, obtain high-manganese low-carbon composite alloy, its weight amount percentage composition is: Mn 75%; Si 17%; Al 7%; P＜0.2%; C＜0.2%; S＜0.03%; Surplus is Fe.
Embodiment 4:
1) take by weighing raw material by weight percentage, get the manganese metal of 367kg manganese content＞99%, the metallic aluminium of 40kg aluminum content＞99%, the ferrosilicon of 120kg silicon content＞70%, standby;
2) manganese metal and Pure Silicon Metal are dropped into melting in the smelting furnace, smelting temperature is 1300 ℃, gets liquation A;
3) the powerful deslagging agent of the IRQT type that 1kg Zhangjagang City solvent factory is produced drops among the liquation A, stirs and remove residue, gets liquation B;
4) get metallic aluminium and drop among the liquation B and carry out melting, drop into the JRC1-2001 standard refining agent 1kg that Zhangjiagang solvent factory produces and the SRWB of this factory again
3Type ternary alterant 1kg stirred 5 minutes, removed residue, got liquation C;
5) liquation C is cast in the ingot mould, treat its cooling, obtain high-manganese low-carbon composite alloy, its weight amount percentage composition is: Mn 70%; Si 11%; Al 17%; P＜0.2%; C＜0.3%; S＜0.03%; Surplus is Fe.
Embodiment 5:
1) according to the materials proportioning that the metallic aluminium of the ferrosilicon of the manganese metal of 394kg aluminum content＞99%, 130kg silicon content＞70%, 40kg aluminum content＞99% is standby;
2) manganese metal, ferrosilicon are dropped into melting in the smelting furnace, smelting temperature is grasped at 1300～1350 ℃, gets liquation A;
3) the IRQT type brute force that 1kg Zhangjiagang solvent factory is produced is coated with the slag agent and drops in the liquation after 5 minutes, stirs and remove residue, solution B;
4) get metallic aluminium and drop among the liquation B and carry out melting, add the SRWB that JRC1-2001 standard refining agent that 1kg Zhangjiagang solvent factory produces and this factory of 1kg produce
3The ternary alterant is cooled to 1000 ℃ then and stirred 5 minutes, will remove the gred again, gets liquation C;
5) liquation C is watered ingot mould, treat that its cooling obtains high-manganese low-carbon composite alloy, its weight percent consists of: Mn 75%; Si 17%; Al 7%; P＜0.2%; C＜0.3%; S＜0.03%; Surplus is Fe.
Claims (3)
1, high-manganese low-carbon composite alloy is characterized in that comprising following component by weight percent meter:
Mn?70～75；Si?11～17；Al?7～14；
P＜0.2; C＜0.3; S＜0.03; The Fe surplus.
2, the preparation method of high-manganese low-carbon composite alloy, its step is as follows:
1) it is standby to take by weighing the metallic aluminium of ferrosilicon, aluminum content＞99% of the Pure Silicon Metal of manganese metal, silicon content＞99% of manganese content＞99% or silicon content＞70% according to the materials proportioning;
2) manganese metal and Pure Silicon Metal are dropped into melting in the smelting furnace, get liquation A;
3) deslagging agent or alterant are dropped among the liquation A, stir and remove residue, get liquation B; The weight part proportioning of described deslagging agent or alterant and liquation A is 1～3: 500;
4) metallic aluminium dropped into carry out melting among the liquation B, drop into alterant and refining agent then, stir and remove residue, liquation C; The weight part proportioning of the weight part proportioning of described alterant and liquation A, refining agent and liquation A is 1～1.5: 500;
5) with liquation C moldings formed therefrom, cooling obtains high-manganese low-carbon composite alloy, and its weight amount percentage composition is: Mn 70～75; Si 11～17; Al 7～14; P＜0.2; C＜0.3; S＜0.03; The Fe surplus.
3, the preparation method of high-manganese low-carbon composite alloy according to claim 2 is characterized in that: step 2) in, the smelting furnace smelting temperature is 1300～1400 ℃.
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| CNB2006100209559A CN100408701C (en) | 2006-04-29 | 2006-04-29 | High-manganese low-carbon composite alloy and method for preparing same |
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| CNB2006100209559A CN100408701C (en) | 2006-04-29 | 2006-04-29 | High-manganese low-carbon composite alloy and method for preparing same |
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| CN100408701C CN100408701C (en) | 2008-08-06 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178671A (en) * | 2013-05-21 | 2014-12-03 | 界首市枫慧金属有限公司 | Aluminum-silicon-manganese alloy |
| CN104451300A (en) * | 2014-12-16 | 2015-03-25 | 中钢集团吉林铁合金股份有限公司 | High-silicon low-phosphorus micro-carbon manganese iron alloy and production method thereof |
| CN106498215A (en) * | 2016-10-25 | 2017-03-15 | 嘉善蓝欣涂料有限公司 | A kind of high fluidity manganese alloy refining agent and preparation method thereof |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3119688A (en) * | 1960-09-13 | 1964-01-28 | Republic Steel Corp | Manganese aluminum alloy for deoxidizing steel |
| US4129439A (en) * | 1974-05-24 | 1978-12-12 | Sumitomo Metal Industries, Ltd. | Process for refining molten steel using ferroalloy |
| CN1082117A (en) * | 1993-03-29 | 1994-02-16 | 黄春林 | Strong multicomponent deoxidant, additive |
| CN1271779A (en) * | 2000-05-22 | 2000-11-01 | 方兴 | Multi-element compound Mn-series deoxidizer for deoxidizing and alloying in smelting steel |
| CN1169986C (en) * | 2002-04-03 | 2004-10-06 | 常州格贝尔合金有限公司 | Al-Si-Mn alloy and its preparing process |
| CN1676624A (en) * | 2005-05-31 | 2005-10-05 | 方兴 | Method for preparing manganese series multi-element composite deoxidant for steel smelting and its product |
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2006
- 2006-04-29 CN CNB2006100209559A patent/CN100408701C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104178671A (en) * | 2013-05-21 | 2014-12-03 | 界首市枫慧金属有限公司 | Aluminum-silicon-manganese alloy |
| CN104451300A (en) * | 2014-12-16 | 2015-03-25 | 中钢集团吉林铁合金股份有限公司 | High-silicon low-phosphorus micro-carbon manganese iron alloy and production method thereof |
| CN106498215A (en) * | 2016-10-25 | 2017-03-15 | 嘉善蓝欣涂料有限公司 | A kind of high fluidity manganese alloy refining agent and preparation method thereof |
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Granted publication date: 20080806 Termination date: 20110429 |