CN101748244A - Deoxidizing ball for steelmaking production - Google Patents
Deoxidizing ball for steelmaking production Download PDFInfo
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- 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
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- steel
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- steelmaking production
- deoxidizing ball
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- 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
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- 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 |