CN101435008A - Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent - Google Patents
Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent Download PDFInfo
- Publication number
- CN101435008A CN101435008A CNA2007101581454A CN200710158145A CN101435008A CN 101435008 A CN101435008 A CN 101435008A CN A2007101581454 A CNA2007101581454 A CN A2007101581454A CN 200710158145 A CN200710158145 A CN 200710158145A CN 101435008 A CN101435008 A CN 101435008A
- Authority
- CN
- China
- Prior art keywords
- steel
- percent
- magnesium
- deoxidizing agent
- aluminum
- Prior art date
- 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.)
- Pending
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- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 title claims abstract description 13
- 229910052782 aluminium Inorganic materials 0.000 title claims abstract description 13
- 238000002844 melting Methods 0.000 title claims abstract description 9
- 230000008018 melting Effects 0.000 title claims abstract description 9
- 229910000851 Alloy steel Inorganic materials 0.000 title claims description 7
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 8
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 8
- 239000011777 magnesium Substances 0.000 claims abstract description 8
- 229910052684 Cerium Inorganic materials 0.000 claims abstract description 7
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 claims abstract description 7
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims abstract description 4
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 4
- 239000011575 calcium Substances 0.000 claims abstract description 4
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 4
- 239000010703 silicon Substances 0.000 claims abstract description 4
- 229910052712 strontium Inorganic materials 0.000 claims abstract description 4
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000000126 substance Substances 0.000 claims abstract description 4
- 239000004411 aluminium Substances 0.000 claims description 11
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- 229910052761 rare earth metal Inorganic materials 0.000 claims description 3
- 229910000831 Steel Inorganic materials 0.000 abstract description 20
- 239000010959 steel Substances 0.000 abstract description 20
- 230000000694 effects Effects 0.000 abstract description 8
- 238000009628 steelmaking Methods 0.000 abstract description 6
- 229910045601 alloy Inorganic materials 0.000 abstract description 5
- 239000000956 alloy Substances 0.000 abstract description 5
- 238000007670 refining Methods 0.000 abstract description 3
- 229910019089 Mg-Fe Inorganic materials 0.000 abstract description 2
- 239000000203 mixture Substances 0.000 abstract description 2
- 230000007850 degeneration Effects 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 230000000149 penetrating effect Effects 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 5
- 238000006477 desulfuration reaction Methods 0.000 description 3
- 230000023556 desulfurization Effects 0.000 description 3
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000640 Fe alloy Inorganic materials 0.000 description 1
- 241001062472 Stokellia anisodon Species 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000006392 deoxygenation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000003599 food sweetener Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000003765 sweetening agent Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
An Al-Mg-Fe series complex alloy deoxidizing agent for steel making is characterized in that the deoxidizing agent also comprises lanthanon cerium and has the following chemical compositions by weight percentage: 30-35 percent of aluminum, 10-15 percent of magnesium, 1-5 percent of silicon, 5-10 percent of calcium, 5-10 percent of strontium, 0.1-2percent of cerium, and the balance of Fe. The deoxidizing agent conducts deep deoxidation by using the activity of alkaline earth metallic elements, not only has better deoxidizing capacity, but also has stronger penetrating power on molten steel due to low melting point and large proportion, effectively removes gas and changes sonims, has refining function on molten steel, nodularization function on devulcanized inclusion and grain refinement function, contributes to further improvement of steel quality. Simultaneously, lanthanon is added to promote crystalline structure degeneration of steel, thus increasing plastic nature and toughness of the steel.
Description
Affiliated technical field
The present invention relates to a kind of alloy product, particularly a kind of aluminum-magnesium-ferrum multicomponent alloy steel melting deoxidizing agent belongs to steelmaking technical field.
Background technology
The steel making deoxidant that uses is aluminium and aluminium alloy substantially at present, and aluminium has very big avidity to oxygen, and can adjust the austenite crystal bulk-growth by crystal grain thinning, thereby improves the plasticity and the toughness of steel.But because low, the easy scaling loss of light specific gravity, fusing point of aluminium, low with the aluminium deoxidation recovery rate, effective rate of utilization is also low, and in air and under the effect of the oxygen in the slag, 70～90% aluminium is oxidized, thereby remaining aluminium had both hanged down also unstable in the steel.Magnesium also is the optimum feed stock of a kind of reductor, particularly liquid steel desulphurization.But because magnesium has very high vapour pressure, very easily vaporize and burn, so it is all very difficult to be directly used in the deoxidation and the desulfurization of steel-making.Aluminium and magnesium are ideal deoxidation and the sweetening agents of steel-making, and when particularly aluminium and magnesium being used jointly, they have the obvious synergistic effect, thereby good deoxidation, sweetening effectiveness are arranged.Carry out final deoxygenation of molten steel with Al-Mg-Fe alloy,, also have shortcoming: the deoxidation products AL in the steel though can obtain deoxidation degree more completely
2O
3Be mingled with and be bar shaped,, cause that the mechanical property of steel is had considerable influence because of its plasticity-not; Deoxidation products AL
2O
3The fusing point height easily condenses when pouring molten steel and stops up the mouth of a river etc.
Summary of the invention
The objective of the invention is to overcome the above-mentioned deficiency of prior art, composition to existing steel making deoxidant improves, provided a kind of aluminum-magnesium-ferrum multicomponent alloy steel melting deoxidizing agent, this iron alloy utilizes the activity of alkali earth metal to carry out degree of depth deoxidation, not only has stronger deoxidizing capacity, and since fusing point low, than great, molten steel is had stronger penetrativity, remove gas effectively and change non-metallic inclusion, molten steel there is the effect of refining effect and desulfurization inclusion balling and crystal grain thinning, helps the further raising of steel quality.
The technical solution that the present invention provides is: this aluminum-magnesium-ferrum multicomponent alloy steel melting deoxidizing agent, be characterized in also including rare-earth element cerium, and its chemical ingredients (weight %) is:
Aluminium 30～35%, magnesium 10～15%, silicon 1～5%,
Calcium 5～10%, strontium 5～10%, cerium 0.1～2%,
Surplus is Fe.
The preparation method of this aluminum-magnesium-ferrum multicomponent alloy steel melting deoxidizing agent that the present invention provides can be made by the master alloy melting that contains said components, and the production method that is adopted is not had special restriction.
Compared with prior art, the invention has the beneficial effects as follows: utilize the activity of alkali earth metal to carry out degree of depth deoxidation, not only has stronger deoxidizing capacity, and since fusing point low, than great, molten steel is had stronger penetrativity, remove gas effectively and change non-metallic inclusion, molten steel there is the effect of refining effect and desulfurization inclusion balling and crystal grain thinning, helps the further raising of steel quality.Simultaneously,, promote the crystal structure sex change of steel, improved the plasticity and the toughness of steel owing to added rare earth element.
Embodiment
Embodiment:
The chemical ingredients (weight %) that adopts the induction oven process to smelt the aluminum-magnesium-ferrum multicomponent alloy of output is:
Aluminium 33%, magnesium 10%, silicon 2%, calcium 6%, strontium 6%, cerium 1%,
Surplus is Fe.
Claims (1)
1. an aluminum-magnesium-ferrum multicomponent alloy steel melting deoxidizing agent is characterized in that also including rare-earth element cerium, and its chemical ingredients (weight %) is:
Aluminium 30～35%, magnesium 10～15%, silicon 1～5%,
Calcium 5～10%, strontium 5～10%, cerium 0.1～2%,
Surplus is Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101581454A CN101435008A (en) | 2007-11-15 | 2007-11-15 | Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101581454A CN101435008A (en) | 2007-11-15 | 2007-11-15 | Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101435008A true CN101435008A (en) | 2009-05-20 |
Family
ID=40709644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101581454A Pending CN101435008A (en) | 2007-11-15 | 2007-11-15 | Aluminum -magnesium-ferrum multicomponent alloy steel melting deoxidizing agent |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435008A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705334B (en) * | 2009-11-13 | 2012-05-23 | 江苏大学 | Al-Ca-Mg-Ce composite alloy for deep desulfurization, final deoxidation and tempering of molten steel |
| CN104313242A (en) * | 2014-10-24 | 2015-01-28 | 周欢 | Deoxidant used for steelmaking and preparation method thereof |
| CN106811574A (en) * | 2015-12-01 | 2017-06-09 | 镇江市润州金山金属粉末厂 | A kind of high efficiency double deoxidizer |
-
2007
- 2007-11-15 CN CNA2007101581454A patent/CN101435008A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101705334B (en) * | 2009-11-13 | 2012-05-23 | 江苏大学 | Al-Ca-Mg-Ce composite alloy for deep desulfurization, final deoxidation and tempering of molten steel |
| CN104313242A (en) * | 2014-10-24 | 2015-01-28 | 周欢 | Deoxidant used for steelmaking and preparation method thereof |
| CN106811574A (en) * | 2015-12-01 | 2017-06-09 | 镇江市润州金山金属粉末厂 | A kind of high efficiency double deoxidizer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| DD01 | Delivery of document by public notice |
Addressee: Guan Pingyu Document name: Notification of before Expiration of Request of Examination as to Substance |
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| DD01 | Delivery of document by public notice |
Addressee: Guan Pingyu Document name: Notification that Application Deemed to be Withdrawn |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20090520 |