CN101748244A - Deoxidizing ball for steelmaking production - Google Patents
Deoxidizing ball for steelmaking production Download PDFInfo
- Publication number
- CN101748244A CN101748244A CN200810229944A CN200810229944A CN101748244A CN 101748244 A CN101748244 A CN 101748244A CN 200810229944 A CN200810229944 A CN 200810229944A CN 200810229944 A CN200810229944 A CN 200810229944A CN 101748244 A CN101748244 A CN 101748244A
- Authority
- CN
- China
- Prior art keywords
- steel
- less
- steelmaking production
- deoxidizing ball
- equal
- 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
Links
- 238000009628 steelmaking Methods 0.000 title claims abstract description 17
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 22
- 239000010959 steel Substances 0.000 claims abstract description 22
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000002994 raw material Substances 0.000 claims abstract description 8
- 239000011575 calcium Substances 0.000 claims abstract description 5
- 239000004568 cement Substances 0.000 claims abstract description 5
- 229910010271 silicon carbide Inorganic materials 0.000 claims abstract description 5
- 239000000126 substance Substances 0.000 claims abstract description 5
- 239000005995 Aluminium silicate Substances 0.000 claims abstract description 4
- 235000012211 aluminium silicate Nutrition 0.000 claims abstract description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 claims abstract description 4
- 229910052742 iron Inorganic materials 0.000 claims abstract description 4
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000011707 mineral Substances 0.000 claims abstract description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 229910052791 calcium Inorganic materials 0.000 claims description 4
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000005469 granulation Methods 0.000 claims description 3
- 230000003179 granulation Effects 0.000 claims description 3
- 239000004615 ingredient Substances 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 4
- 229910052782 aluminium Inorganic materials 0.000 abstract description 4
- 238000007670 refining Methods 0.000 abstract description 3
- 239000013078 crystal Substances 0.000 abstract description 2
- 239000002245 particle Substances 0.000 abstract 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 abstract 1
- 229910052593 corundum Inorganic materials 0.000 abstract 1
- 238000005272 metallurgy Methods 0.000 abstract 1
- 229910001845 yogo sapphire Inorganic materials 0.000 abstract 1
- 239000004411 aluminium Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000006477 desulfuration reaction Methods 0.000 description 2
- 230000023556 desulfurization Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 229910000616 Ferromanganese Inorganic materials 0.000 description 1
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 229910000720 Silicomanganese Inorganic materials 0.000 description 1
- 235000012215 calcium aluminium silicate Nutrition 0.000 description 1
- 239000000404 calcium aluminium silicate Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- DALUDRGQOYMVLD-UHFFFAOYSA-N iron manganese Chemical group [Mn].[Fe] DALUDRGQOYMVLD-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
Landscapes
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention relates to a deoxidizing ball for steelmaking production in metallurgy industry, which is characterized by comprising the following raw materials: 30% of calcium carbonate mineral substance, 5% of carborundum, 10% of kaolin, 10% of cement clinker, and the balance scrap iron and steel scrap. The above raw materials are pelletized with the particle size less than phi30mm. The deoxidizing ball has the following chemical components: 51% of Si, 10% of Ca, 16% of Ba, 6% of Sr, less than or equal to 0.35% of C, less than or equal to 0.025% of S, less than or equal to 0.02% of P and the balance Fe. The deoxidizing ball for steelmaking production provided by the invention is a deoxidant without aluminum, can improve physical, mechanical and technological properties of steel, has strong capability of removing gas and changing nonmetallic inclusion, has the functions of refining and desulfurating inclusion and balling and refining crystal particles, improves steelmaking quality and mechanical performance, ensures than the steel has low Als and less Al2O3 inclusion, and reduces and gets rid of larger inclusions particles of calc-aluminum silicate.
Description
Technical field
The present invention relates to the deoxidizing ball for steelmaking production that uses in a kind of steelmaking production in metallurgical industry.
Background technology
At present, the reductor of using in the domestic steelmaking production in metallurgical industry mainly is ferromanganese, ferrosilicon, silicomanganese, and end-deoxidizer mainly is aluminium and aluminium alloy.Traditional direct deoxidation of method of deoxidation useful metal aluminium is with aluminium and aluminium alloy deoxidation, deoxidation products a-AL
2O
3, belong to micro-and be mingled with or submicroscopic is mingled with, be difficult for from molten steel, getting rid of, influence the quality and the mechanical property of steel.The disclosed a kind of deoxidising agent for manufacture of steel with converters of Chinese patent CN1049377 is made up of Ca, Si, C by retrieval, and its effect is the quality that improves steel, makes that impurity descends in the steel, but because of it contains SiC, is not suitable for to contain the lower steel grade of Si, C amount.The technical scheme that is adopted in these technique known, what mainly solve is deoxidation of molten steel, can not solve the problem of desulfurization, in order to improve the cleanliness factor of steel, both at home and abroad all in method and the purification of molten steel agent of seeking the steel cleaning.
Summary of the invention
The present invention has overcome the defective of above-mentioned existence, and purpose is for satisfying deoxidation requirement in the steelmaking production in metallurgical industry, guaranteeing AL in the steel
2O
3Be mingled with and lack, improve the grain size number of steel and the mechanical property of steel, a kind of deoxidizing ball for steelmaking production is provided.
Deoxidizing ball for steelmaking production content Description of the present invention:
Deoxidizing ball for steelmaking production of the present invention is characterized in that: it is made up of following raw materials according: calcium carbonate mineral matter 30%, silicon carbide 5%, kaolin 10%, cement clinker 10%, surplus are scrap iron and steel cuttings; Above-mentioned raw materials is carried out granulation, granularity＜Φ 30mm.
Its chemical ingredients is: Si 51%, Ca 10%, Ba 16%, Sr 6%, C≤0.35%, S≤0.025%, P≤0.02%, surplus are Fe.
Deoxidizing ball for steelmaking production of the present invention is a kind of not aluminiferous reductor, improves physics, machinery, the processing performance of steel.Have stronger removal gas and change non-metallic inclusion, the effect of refining and desulfurization inclusion balling and crystal grain thinning is arranged, improve steel-making quality and mechanical property.Guarantee that Als is low in the steel, AL
2O
3Be mingled with and lack, can reduce and get rid of the effect that the calcium aluminium silicate macrobead is mingled with in the steel again.
Embodiment
Do below deoxidizing ball for steelmaking production of the present invention is achieved in that and specify.Get raw material: calcium carbonate mineral matter 30%, silicon carbide 5%, kaolin 10%, cement clinker 10%, surplus are scrap iron and steel cuttings; After the above-mentioned raw materials mixing, be crushed to more than 150 orders, add cement clinker and carry out granulation, make granularity＜Φ 30mm.Its chemical ingredients is: Si 51%, Ca 10%, Ba 16%, Sr 6%, C≤0.35%, S≤0.025%, P≤0.02%, surplus are Fe.
Claims (2)
1. deoxidizing ball for steelmaking production, it is characterized in that: it is made up of following raw materials according: calcium carbonate mineral matter 30%, silicon carbide 5%, kaolin 10%, cement clinker 10%, surplus are scrap iron and steel cuttings; Above-mentioned raw materials is carried out granulation, granularity＜Φ 30mm.
2. deoxidizing ball for steelmaking production according to claim 1 is characterized in that: its chemical ingredients is: Si 51%, Ca 10%, Ba 16%, Sr 6%, C≤0.35%, S≤0.025%, P≤0.02%, surplus are Fe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229944A CN101748244A (en) | 2008-12-19 | 2008-12-19 | Deoxidizing ball for steelmaking production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810229944A CN101748244A (en) | 2008-12-19 | 2008-12-19 | Deoxidizing ball for steelmaking production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101748244A true CN101748244A (en) | 2010-06-23 |
Family
ID=42475855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810229944A Pending CN101748244A (en) | 2008-12-19 | 2008-12-19 | Deoxidizing ball for steelmaking production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101748244A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618695A (en) * | 2012-03-31 | 2012-08-01 | 芜湖县天海耐火炉料有限公司 | Deoxidizing agent for steelmaking of electric converter and preparation method thereof |
| CN111334724A (en) * | 2020-03-12 | 2020-06-26 | 海安海太铸造有限公司 | Polymorphic high-degree deoxidation casting method for microalloyed rare earth cast steel |
-
2008
- 2008-12-19 CN CN200810229944A patent/CN101748244A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102618695A (en) * | 2012-03-31 | 2012-08-01 | 芜湖县天海耐火炉料有限公司 | Deoxidizing agent for steelmaking of electric converter and preparation method thereof |
| CN102618695B (en) * | 2012-03-31 | 2013-10-16 | 芜湖县天海耐火炉料有限公司 | Deoxidizing agent for steelmaking of electric converter and preparation method thereof |
| CN111334724A (en) * | 2020-03-12 | 2020-06-26 | 海安海太铸造有限公司 | Polymorphic high-degree deoxidation casting method for microalloyed rare earth cast steel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |