CN1377985A - Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy - Google Patents
Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy Download PDFInfo
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- CN1377985A CN1377985A CN 02100861 CN02100861A CN1377985A CN 1377985 A CN1377985 A CN 1377985A CN 02100861 CN02100861 CN 02100861 CN 02100861 A CN02100861 A CN 02100861A CN 1377985 A CN1377985 A CN 1377985A
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- manganese
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- iron alloy
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Abstract
The present invention relates to ferroalloy. The low-phosphorus and low-carbon Al-Si-Mn ferroalloy is produced with aluminium and common silicomanganese in certain proportion and through adding proper amount of Ca-Ba dephosphorizing agent for high temperature dephosphorizing and decarbonizing and adding proper amount of pure aluminum and clean waste steel. It has the weight composition of: Al 5-20 wt%, Si 8-20 wt%, Mn 50-70 wt%, C less than 1.0 wt%, S less than 0.03 wt% other than Fe.
Description
Technical field
The present invention is a kind of preparation method of low phosphorus and low carbon aluminium-silicon-manganese-iron alloy, belongs to the iron alloy technical field.
Background technology
Along with developing rapidly of Iron And Steel Industry, the kind of high quality, high added value obviously increases.The strict controls of composition such as the carbon in the variety steel, phosphorus.China is for the requirement satisfying iron and steel enterprise and produce the high quality variety steel and the development trend of steel industry at present, needs a kind ofly elements such as carbon phosphorus in the alloy to be controlled to MIN special dephosphorization technology.
Summary of the invention
The preparation method who the purpose of this invention is to provide a kind of low phosphorus and low carbon aluminium-silicon-manganese-iron alloy.This alloy can overcome the too high problem of phosphorus, carbon content in the existing alloy.
The object of the present invention is achieved like this:
The composition of described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy (weight %) is:
Al 5～20%, and Mn 50～70%, and Si 8～20%, C≤1.0%, and P≤0.1%, S≤0.03%, surplus is Fe.
Described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy the preparation method be:
1, batching
According to the composition of described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy select for use ordinary silicon manganese alloy, manganese metal, aluminium, and steel scrap prepare burden as raw material.The manganese content of described manganese metal is greater than 99.5%.
2, melting
The steel scrap that will contain C＜0.1% is put into smelting furnace earlier, adding Chemical Composition (weight %) then is: Ca:22-28% Si:50-55% C≤1.0% Al≤2.5% P≤0.04% S≤0.05% surplus is that the calcium of Fe is dephosphorizing agent, add-on by the 10-13% of throwing silicomanganese raw alloy dosage; Add silicomanganese more in the above, carry out melting.Above-mentioned raw materials adds slag supplying agent 15-20kg/t (total amount feeds intake) after all melting, and carries out slag making.After slag making finishes, add deslagging agent 2-4kg/t (total amount feeds intake) again, then slag is taken off come out of the stove outside.In above-mentioned fusion process, with Control for Kiln Temperature at 1300～1380 ℃.Add high-powerly then, again manganese metal and aluminium are added melting in the stove one by one, fully stir the melting back that finishes, to guarantee uniform ingredients.
Described slag supplying agent is the fluorite powder.Described deslagging agent is scale oxide or quartz sand.
The composition of the low phosphorus and low carbon aluminium-silicon-manganese-iron alloy of gained (weight %) is:
Al 5～20%, and Mn 50～70%, and Si 8～20%, C≤1.0%, and P≤0.1%, S≤0.03%, surplus is Fe.
After above-mentioned molten metal poured into network model, pour out after waiting alloy graining, carry out fragmentation and finishing again, obtain the product of desired particle size.
Embodiment: (500kg feeds intake)
In intermediate frequency furnace, add the clean steel scrap 44kg that contains C=0.05%, adding calcium simultaneously is dephosphorizing agent 30kg, its Chemical Composition is: Ca 26.8% Si 54.2% C 0.82% Al 2.4% P 0.03% S0.04% surplus is Fe, with the trade mark be that (its composition is FeMn68Si18: silicomanganese 300kg Mn 67.5% Si 17.2%C 1.68% P 0.23% S 0.03%), carry out melting, smelting temperature is 1348 ℃, add 8kg fluorite powder then and carry out residue adjustment, treat that slag fully dilutes the back and adds deslagging agent iron scale (Fe
2O
3) 1kg, with slag oxidation become take off behind the innoxious substance come out of the stove outside.Sampling analysis C, P content.Qualified back rising power, be that 99.6% manganese metal 110kg and the pop can remelting aluminium 46kg that contains aluminium 94.8% add in the stove one by one and melt again with manganese content, fully stir behind molten the finishing, evenly behind the composition, tapping casting is in ingot mould, after condensation, broken, finishing, the products obtained therefrom Chemical Composition is:
Al 8.56% Mn 63.21% Si 13.56% C 0.46% P 0.08% S 0.017% surplus is an iron.
Claims (3)
1, a kind of preparation method of low phosphorus and low carbon aluminium-silicon-manganese-iron alloy, it is characterized in that the composition (weight %) of described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy is: Al 5～20%, and Mn 50～70%, Si 8～20%, C≤1.0%, P≤0.1%, S≤0.03%, surplus are Fe;
Described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy the preparation method be:
1, batching
According to the composition of described low phosphorus and low carbon aluminium-silicon-manganese-iron alloy select for use ordinary silicon manganese alloy, manganese metal, aluminium, and steel scrap prepare burden as raw material, the manganese content of described manganese metal is greater than 99.5%;
2, melting
The steel scrap that will contain C＜0.1% is put into smelting furnace earlier, adding Chemical Composition (weight %) then is: Ca:22-28% Si:50-55% C≤1.0% Al≤2.5% P≤0.04% S≤0.05% surplus is that the calcium of Fe is dephosphorizing agent, add-on by the 10-13% of throwing silicomanganese raw alloy dosage; Add silicomanganese more in the above, carry out melting; Above-mentioned raw materials adds slag supplying agent 15-20kg/t (total amount feeds intake) after all melting, and carries out slag making; After slag making finishes, add deslagging agent 2-4kg/t (total amount feeds intake) again, then slag is taken off come out of the stove outside; In above-mentioned fusion process, with Control for Kiln Temperature at 1300～1380 ℃.Add high-powerly then, again manganese metal and aluminium are added melting in the stove one by one, fully stir the melting back that finishes, to guarantee uniform ingredients;
The composition of the low phosphorus and low carbon aluminium-silicon-manganese-iron alloy of gained (weight %) is:
Al 5～20%, and Mn 50～70%, and Si 8～20%, C≤1.0%, and P≤0.1%, S≤0.03%, surplus is Fe.
2, preparation method as claimed in claim 1 is characterized in that described slag supplying agent is the fluorite powder.
3, preparation method as claimed in claim 1 is characterized in that described deslagging agent is scale oxide or quartz sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02100861 CN1240865C (en) | 2002-02-04 | 2002-02-04 | Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02100861 CN1240865C (en) | 2002-02-04 | 2002-02-04 | Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1377985A true CN1377985A (en) | 2002-11-06 |
| CN1240865C CN1240865C (en) | 2006-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 02100861 Expired - Fee Related CN1240865C (en) | 2002-02-04 | 2002-02-04 | Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy |
Country Status (1)
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| CN (1) | CN1240865C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354441C (en) * | 2005-03-23 | 2007-12-12 | 宁结算 | Method for preparing low-carbon low-phosphor silicon manganese alloy by utilizing medium manganese slag and siliceous reducer |
| CN100457942C (en) * | 2006-07-07 | 2009-02-04 | 广西天等县中天矿业有限公司 | Low-carbon aluminium manganese silicon alloy and preparation method thereof |
| CN102839258A (en) * | 2011-10-24 | 2012-12-26 | 上海中捷有色金属有限公司 | Aluminum-silicon-manganese-iron compound deoxidizer for steel making |
| CN103088244A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Ferromanganese alloy and preparation method thereof |
| CN103088243A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Preparation method of ferromanganese alloy |
| CN103938043A (en) * | 2014-05-13 | 2014-07-23 | 秦领 | Technique for producing pure manganese-silicon-aluminum alloy from high-phosphorus manganese ores |
| CN109055665A (en) * | 2018-08-08 | 2018-12-21 | 鞍钢股份有限公司 | Composite dephosphorization method of manganese alloy |
| CN110484793A (en) * | 2019-09-11 | 2019-11-22 | 中南大学 | A kind of electric pulse treating method improving aluminium-silicon-manganese-iron alloy anti-grinded hardness index |
| CN115572792A (en) * | 2022-10-21 | 2023-01-06 | 河南少林特材有限公司 | Dephosphorization method and application |
-
2002
- 2002-02-04 CN CN 02100861 patent/CN1240865C/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100354441C (en) * | 2005-03-23 | 2007-12-12 | 宁结算 | Method for preparing low-carbon low-phosphor silicon manganese alloy by utilizing medium manganese slag and siliceous reducer |
| CN100457942C (en) * | 2006-07-07 | 2009-02-04 | 广西天等县中天矿业有限公司 | Low-carbon aluminium manganese silicon alloy and preparation method thereof |
| CN102839258A (en) * | 2011-10-24 | 2012-12-26 | 上海中捷有色金属有限公司 | Aluminum-silicon-manganese-iron compound deoxidizer for steel making |
| CN103088244A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Ferromanganese alloy and preparation method thereof |
| CN103088243A (en) * | 2012-11-09 | 2013-05-08 | 黄宣斐 | Preparation method of ferromanganese alloy |
| CN103938043A (en) * | 2014-05-13 | 2014-07-23 | 秦领 | Technique for producing pure manganese-silicon-aluminum alloy from high-phosphorus manganese ores |
| CN109055665A (en) * | 2018-08-08 | 2018-12-21 | 鞍钢股份有限公司 | Composite dephosphorization method of manganese alloy |
| CN110484793A (en) * | 2019-09-11 | 2019-11-22 | 中南大学 | A kind of electric pulse treating method improving aluminium-silicon-manganese-iron alloy anti-grinded hardness index |
| CN110484793B (en) * | 2019-09-11 | 2021-02-19 | 中南大学 | Electric pulse treatment method for improving powdering resistance of aluminum-silicon-manganese-iron alloy |
| CN115572792A (en) * | 2022-10-21 | 2023-01-06 | 河南少林特材有限公司 | Dephosphorization method and application |
| CN115572792B (en) * | 2022-10-21 | 2023-12-19 | 河南少林特材有限公司 | Dephosphorization method and application |
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| Publication number | Publication date |
|---|---|
| CN1240865C (en) | 2006-02-08 |
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Assignee: Maoshengte Alloy Product Factory, Changzhou City Assignor: Xingchangsheng Alloy Product Co., Ltd., Changzhou City Contract fulfillment period: 2007.10.8 to 2022.2.4 contract change Contract record no.: 2008320000781 Denomination of invention: Process for preparing low phosphorus and low carbon aluminium-silicon-manganese-iron alloy Granted publication date: 20060208 License type: Exclusive license Record date: 20081012 |
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Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2007.10.8 TO 2022.2.4; CHANGE OF CONTRACT Name of requester: CHANGZHOU CITY MAOSHENGTE ALLOY PRODUCTS FACTORY Effective date: 20081012 |
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