CN1318611C - Composite refiner for metallurgy - Google Patents
Composite refiner for metallurgy Download PDFInfo
- Publication number
- CN1318611C CN1318611C CNB2004100830140A CN200410083014A CN1318611C CN 1318611 C CN1318611 C CN 1318611C CN B2004100830140 A CNB2004100830140 A CN B2004100830140A CN 200410083014 A CN200410083014 A CN 200410083014A CN 1318611 C CN1318611 C CN 1318611C
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- CN
- China
- Prior art keywords
- slag
- metallurgy
- magnesium
- steel
- calcium
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Treatment Of Steel In Its Molten State (AREA)
Abstract
The present invention discloses a composite refining agent for metallurgy, which is characterized in that the composite refining agent comprises 30% to 50% of calcium silicon alloy and calcium silicon slag, 10% to 30% of silicon barium alloy and silicon barium slag, 15% of calcium carbide, 5% of lime stone or aluminum and 20% of magnesium and magnesium slag. Compared with the existing similar products, the composite refining agent for metallurgy has the advantages of short smelting period, low cost of steel making, favorable effects of deoxidation, desulphurization and impurity removal from molten steel, and favorable denaturing effect of impurities, and due to molten steel purification, the internal quality of steel is enhanced.
Description
The invention belongs to and divide an application, former denomination of invention is " a kind of composite metallurgical refining agent ", and application number is 02113206.2, and the applying date is on January 7th, 2002.
Technical field
The present invention relates to a kind of metallurgical refiner, definitely saying so relates to a kind of composite refiner for metallurgy.
Background technology
Going out steel refining is the important step of modern STEELMAKING PRODUCTION.In the tapping process of oxidisability molten steel, add predetermined substance, can realize the functions such as inclusion in deoxidation, desulfurization, the removal steel, also help the raising yield of alloy simultaneously.Do out the steel refining link well,, improve the inner quality of steel and reduce production costs significant for alleviating the external refining load.Tradition tapping additive mostly is the simple synthetic slag sweetening agent based on lime, fluorite.Because be that the high-melting-point pure substance carries out mechanically mixing and forms, the slagging speed of synthetic slag is slow, utilization ratio is low, and molten steel temperature drop is big, and effect is undesirable.Recently some producer uses multi-element composite deoxidant (Si-Al-Ba, Si-Ca-Ba etc.) or with the synthetic slag that contains a certain amount of calcium carbide, both are obtaining better effects aspect the pre-deoxidation of oxidisability molten steel, but the cost height.Existing refining agent, major part is to adopt the metallurgical waste slag to cooperate metallurgical fusing assistant and catalyzer to merge to form, but at trace element, especially the span of control of carbon increasing amount is also less, on industrial production such as ultralow this class steel grade of little carbon, also can not get comparatively ideal effect, thereby still be the industrial difficult problem to be solved that has so far.
Summary of the invention
The objective of the invention is to: provide a kind of and can shorten inclusion in smelting cycle, reduction steel-making cost, deoxidation, desulfurization, the removal molten steel, cleaning molten steel is effective, effectively improves the composite refiner for metallurgy of steel internal soundness.
The objective of the invention is to realize by the enforcement following technical proposals:
Composite refiner for metallurgy is characterized in that: contain
Si-Ba alloy+silicon barium slag 10%～30%
Silicocalcium+silico-calcium slag 30%～50%
Calcium carbide 15%
Wingdale or aluminium 5%
Magnesium+magnesium slag 20%.
Composite metallurgical refining agent of the present invention prepares as follows:
This technology is made up of raw materials pretreatment, batching preparation, inspection after construction and packing of product technological process; Raw materials pretreatment by select materials, broken, drying process forms; The batching preparation is made up of batch mixes, fast uniform fusion operation.Details are as follows for its each operation content:
1, the operation of selecting materials: being mixed with the electrode slag in the raw material, artifact (as the waste material that produces in steel bar end, the first-class steel-making of refractory brick) is removed;
2, broken process: every kind of raw material crushing will choosing with crusher becomes 10～40mm particle;
3, drying process: with granularity is that the raw material of 10～40mm is put in the roaster and toasts, and removes most of moisture content, removes moisture content with drying machine again;
4, proportion mixed process: raw material is mixed by the prescription requirement;
5, fast uniform merges operation: by press the compound high pressure is suppressed.
Range of application of this product and method:
This product is used for the tapping back oxidisability molten steel is carried out the external refining processing.
Implementation step: melting → tapping → adding refining agent → cast (treating refining after having smart stove to finish, then cast).
The invention has the advantages that: smelting cycle is short, steel-making cost is low, the inclusion in the deoxidation, desulfurization, removal molten steel and make the internal soundness that inclusion modification is effective, cleaning molten steel has improved steel.
Description of drawings
The present invention has provided composite refiner for metallurgy product processes schema
Embodiment
Embodiment 1 composite refiner for metallurgy C
Contain
Silicocalcium+silico-calcium slag 50%
Si-Ba alloy+silicon barium slag 10%
Calcium carbide 15%
Wingdale 5%
Magnesium+magnesium slag 20%.
Embodiment 2 composite refiner for metallurgy D
Contain
Silicocalcium+silico-calcium slag 30%
Si-Ba alloy+silicon barium slag 30%
Calcium carbide 15%
Aluminium 5%
Magnesium+magnesium slag 20%.
Claims (3)
1, a kind of composite refiner for metallurgy is characterized in that: contain
Si-Ba alloy+silicon barium slag 10%～30%
Silicocalcium+silico-calcium slag 30%～50%
Calcium carbide 15%
Wingdale or aluminium 5%
Magnesium+magnesium slag 20%.
2, according to the described composite refiner for metallurgy of claim 1, it is characterized in that: contain
Silicocalcium+silico-calcium slag 50%
Si-Ba alloy+silicon barium slag 10%
Calcium carbide 15%
Wingdale 5%
Magnesium+magnesium slag 20%.
3, according to the described composite refiner for metallurgy of claim 1, it is characterized in that: contain
Silicocalcium+silico-calcium slag 30%
Si-Ba alloy+silicon barium slag 30%
Calcium carbide 15%
Aluminium 5%
Magnesium+magnesium slag 20%.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02113206 CN1209471C (en) | 2002-01-07 | 2002-01-07 | Composite metallurgical refining agent |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02113206 Division CN1209471C (en) | 2002-01-07 | 2002-01-07 | Composite metallurgical refining agent |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1614035A CN1614035A (en) | 2005-05-11 |
| CN1318611C true CN1318611C (en) | 2007-05-30 |
Family
ID=4742505
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02113206 Expired - Fee Related CN1209471C (en) | 2002-01-07 | 2002-01-07 | Composite metallurgical refining agent |
| CNB2004100830140A Expired - Fee Related CN1318611C (en) | 2002-01-07 | 2002-01-07 | Composite refiner for metallurgy |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02113206 Expired - Fee Related CN1209471C (en) | 2002-01-07 | 2002-01-07 | Composite metallurgical refining agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (2) | CN1209471C (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1209471C (en) * | 2002-01-07 | 2005-07-06 | 张炼 | Composite metallurgical refining agent |
| CN100393892C (en) * | 2005-12-08 | 2008-06-11 | 中国铝业股份有限公司 | Desulfur technology of phosphorus molten pig iron for precalcining anode pouring |
| CN100545268C (en) * | 2006-11-10 | 2009-09-30 | 攀钢集团攀枝花钢铁研究院 | Multifunctional composite refining agent for steelmaking |
| CN101880747B (en) * | 2009-05-06 | 2014-01-01 | 鞍钢股份有限公司 | Clean steel production method for reducing total oxygen content of molten steel |
| CN101993976B (en) * | 2009-08-10 | 2013-09-04 | 鞍钢股份有限公司 | Aluminum killed steel refining deoxidation and desulfurization synthetic slag |
| CN105624365B (en) * | 2016-03-29 | 2017-08-11 | 马鞍山市兴达冶金新材料有限公司 | A kind of alkaline earth oxide is combined molten steel refining agent and preparation method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034959A (en) * | 1988-12-20 | 1989-08-23 | 丹东市铁合金厂 | Making process for si-ba alloy |
| CN1375562A (en) * | 2002-01-07 | 2002-10-23 | 张炼 | Composite metallurgical refining agent |
-
2002
- 2002-01-07 CN CN 02113206 patent/CN1209471C/en not_active Expired - Fee Related
- 2002-01-07 CN CNB2004100830140A patent/CN1318611C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034959A (en) * | 1988-12-20 | 1989-08-23 | 丹东市铁合金厂 | Making process for si-ba alloy |
| CN1375562A (en) * | 2002-01-07 | 2002-10-23 | 张炼 | Composite metallurgical refining agent |
Non-Patent Citations (4)
| Title |
|---|
| 纯净钢生产技术 刘中柱，蔡开科，钢铁，第35卷第2期 2000 * |
| 纯净钢生产技术 刘中柱，蔡开科，钢铁，第35卷第2期 2000;铁水脱硫的热力学与动力学浅析 吴引淳，炼钢，第1卷 1996;铁水脱硫剂的研究和发展 叶树峰，赵俊学等，江西冶金，第18卷第1期 1998 * |
| 铁水脱硫剂的研究和发展 叶树峰，赵俊学等，江西冶金，第18卷第1期 1998 * |
| 铁水脱硫的热力学与动力学浅析 吴引淳，炼钢，第1卷 1996 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1375562A (en) | 2002-10-23 |
| CN1614035A (en) | 2005-05-11 |
| CN1209471C (en) | 2005-07-06 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070530 Termination date: 20140107 |