IN2014CN01547A - - Google Patents

Info

Publication number
IN2014CN01547A
IN2014CN01547A IN1547CHN2014A IN2014CN01547A IN 2014CN01547 A IN2014CN01547 A IN 2014CN01547A IN 1547CHN2014 A IN1547CHN2014 A IN 1547CHN2014A IN 2014CN01547 A IN2014CN01547 A IN 2014CN01547A
Authority
IN
India
Prior art keywords
stainless steel
continuous casting
ferritic stainless
treatment
vod
Prior art date
Application number
Inventor
Yingtie Xu
Zhaoping Chen
Shi Li
Original Assignee
Baoshan Iron & Steel
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Baoshan Iron & Steel filed Critical Baoshan Iron & Steel
Publication of IN2014CN01547A publication Critical patent/IN2014CN01547A/en

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/06—Deoxidising, e.g. killing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/04—Removing impurities by adding a treating agent
    • C21C7/068—Decarburising
    • C21C7/0685—Decarburising of stainless steel
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C7/00—Treating molten ferrous alloys, e.g. steel, not covered by groups C21C1/00 - C21C5/00
    • C21C7/10—Handling in a vacuum

Abstract

23A method for smelting high aluminum low silicon ultrapure ferritic stainless steel. First vacuum oxygen decarburization (VOD) and free decarburization treatment is performed on molten ferritic stainless steel in a VOD furnace then a reduction process of a VOD vacuum treatment process is improved and measures such as preliminary deoxidation final deoxidation vacuum breaking addition of high density aluminum iron control of the alkalinity of slag followed by wire feeding treatment and protected casting in a continuous casting process are taken so as to obtain high aluminum low silicon ultrapure ferritic stainless steel during the continuous casting treatment improve acid pickling performance of the ultrapure ferritic stainless steel further improve the purity of the molten steel and the castable performance in the continuous casting process meanwhile effectively suppress the formation of the harmful inclusion of the magnesia aluminum spinel effectively remove the inclusion of AlO suppress oxidation of titanium in titanium containing steel and avoid blockage of a tundish nozzle in the continuous casting process.
IN1547CHN2014 2011-10-25 2012-01-06 IN2014CN01547A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN 201110327941 CN102329920B (en) 2011-10-25 2011-10-25 Method for smelting high-aluminum low-silicon ultra pure ferritic stainless steel
PCT/CN2012/070096 WO2013060101A1 (en) 2011-10-25 2012-01-06 Method for smelting high-aluminum-low-silicon ultrapure ferritic stainless steel

Publications (1)

Publication Number Publication Date
IN2014CN01547A true IN2014CN01547A (en) 2015-05-08

Family

ID=45481880

Family Applications (1)

Application Number Title Priority Date Filing Date
IN1547CHN2014 IN2014CN01547A (en) 2011-10-25 2012-01-06

Country Status (6)

Country Link
EP (1) EP2772554B1 (en)
JP (1) JP5833767B2 (en)
KR (1) KR101787179B1 (en)
CN (1) CN102329920B (en)
IN (1) IN2014CN01547A (en)
WO (1) WO2013060101A1 (en)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103225034B (en) * 2013-04-25 2015-05-06 山西太钢不锈钢股份有限公司 Method for improving yielding rate of ultra pure ferrite stainless steel titanium
CN103397141B (en) * 2013-07-30 2014-12-24 山西太钢不锈钢股份有限公司 Smelting method of high-aluminum stainless steel
CN103388052A (en) * 2013-08-08 2013-11-13 山西太钢不锈钢股份有限公司 Production method of deoxidizing low-silicon steel by adding silicon-containing alloy
CN104946855B (en) * 2015-07-15 2017-03-08 武汉钢铁(集团)公司 A kind of vacuum processing method of high alumina ultra-low-carbon steel
CN105648148B (en) * 2016-01-06 2017-08-15 山西太钢不锈钢股份有限公司 A kind of super-purity ferrite stainless steel deoxidation and the method for Control and Inclusion Removal
CN109423536B (en) * 2017-08-25 2021-04-13 宝山钢铁股份有限公司 Smelting method of ultra-low carbon 13Cr stainless steel
CN107876211B (en) * 2017-11-28 2023-08-29 嘉峪关天源新材料有限责任公司 Composite magnetic focusing medium rod with high magnetic field strength and preparation method thereof
CN112063801B (en) * 2020-09-17 2022-08-23 浦项(张家港)不锈钢股份有限公司 Stainless steel and preparation method thereof
CN112475255B (en) * 2020-11-18 2022-04-01 山西太钢不锈钢股份有限公司 Continuous casting production method of high-aluminum ferrite stainless steel
CN113151637B (en) * 2021-03-31 2022-10-14 北京科技大学 Method for controlling pit defect of chromium-containing steel surface polishing inclusion
CN113560509B (en) * 2021-07-27 2023-02-24 上海电气上重铸锻有限公司 Method for manufacturing low-silicon boron-controlled steel large steel ingot
CN113737081B (en) * 2021-08-31 2022-04-01 中国科学院上海应用物理研究所 Stainless steel smelting method, stainless steel modification method and stainless steel
CN115287403A (en) * 2022-08-15 2022-11-04 广东韶钢松山股份有限公司 Low-carbon low-silicon cold heading steel deoxidation method
CN115369207A (en) * 2022-09-06 2022-11-22 重庆钢铁股份有限公司 Method for controlling nitrogen content of non-vacuum smelting plate blank
CN115522124B (en) * 2022-09-20 2023-03-14 中天钢铁集团有限公司 Method for improving continuous casting castability and sulfide form of medium-carbon S-containing Al-containing steel

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JPS5763620A (en) * 1980-09-01 1982-04-17 Sumitomo Metal Ind Ltd Denitriding and refining method for high chromium steel
JPH06128620A (en) * 1992-10-19 1994-05-10 Nippon Steel Corp Method for adding ca
JPH09287016A (en) * 1996-04-19 1997-11-04 Nippon Steel Corp Method for melting stainless steel
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JPH11158537A (en) * 1997-12-02 1999-06-15 Sumitomo Metal Ind Ltd Production of extra-low carbon steel excellent in cleanliness
JP3855553B2 (en) * 1999-08-30 2006-12-13 Ｊｆｅスチール株式会社 Al concentration adjustment method for high Si content molten steel
JP3624804B2 (en) 2000-07-14 2005-03-02 住友金属工業株式会社 Method for producing ridging resistant ferritic stainless steel
JP2008274329A (en) * 2007-04-26 2008-11-13 Jfe Steel Kk Low-carbon ferritic stainless steel with excellent ridging characteristic, and its manufacturing method
CN100557038C (en) * 2007-05-30 2009-11-04 山西太钢不锈钢股份有限公司 The smelting process of a kind of super-purity ferrite stainless steel decarburization, denitrogenation
KR100922061B1 (en) * 2007-12-12 2009-10-16 주식회사 포스코 Method of manufacturing ultra low carbon ferritic stainless steel
CN101768656B (en) * 2008-12-31 2011-08-24 宝山钢铁股份有限公司 Method for refining ultra-low carbon ferritic stainless steel under vacuum
CN102199684B (en) * 2010-03-25 2013-03-13 宝山钢铁股份有限公司 Production method of ultralow-oxygen titanium-containing ferrite stainless steel
CN102199688B (en) * 2010-03-25 2013-02-06 宝山钢铁股份有限公司 Method for efficiently refining ultra-pure ferritic stainless steel

Also Published As

Publication number Publication date
KR20140092800A (en) 2014-07-24
JP2015501382A (en) 2015-01-15
WO2013060101A1 (en) 2013-05-02
EP2772554A4 (en) 2015-11-11
JP5833767B2 (en) 2015-12-16
CN102329920A (en) 2012-01-25
CN102329920B (en) 2013-04-24
KR101787179B1 (en) 2017-11-15
EP2772554B1 (en) 2017-03-01
EP2772554A1 (en) 2014-09-03

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