KR20220035339A - Polar steel smelting method to control inclusions - Google Patents

Polar steel smelting method to control inclusions Download PDF

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Publication number
KR20220035339A
KR20220035339A KR1020217043397A KR20217043397A KR20220035339A KR 20220035339 A KR20220035339 A KR 20220035339A KR 1020217043397 A KR1020217043397 A KR 1020217043397A KR 20217043397 A KR20217043397 A KR 20217043397A KR 20220035339 A KR20220035339 A KR 20220035339A
Authority
KR
South Korea
Prior art keywords
smelting method
steel smelting
control inclusions
polar
polar steel
Prior art date
Application number
KR1020217043397A
Other languages
Korean (ko)
Other versions
KR102609009B1 (en
Inventor
밍 리
치앙 리
취엔후이 리
싱 진
이 판
허허 저우
위췬 인
루잉 판
바이지에 자오
쥐에페이 츄
Original Assignee
난징 아이론 앤드 스틸 컴퍼니 리미티드
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 난징 아이론 앤드 스틸 컴퍼니 리미티드 filed Critical 난징 아이론 앤드 스틸 컴퍼니 리미티드
Publication of KR20220035339A publication Critical patent/KR20220035339A/en
Application granted granted Critical
Publication of KR102609009B1 publication Critical patent/KR102609009B1/en

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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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/527—Charging of the electric furnace
    • 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
    • C21C1/00—Refining of pig-iron; Cast iron
    • C21C1/04—Removing impurities other than carbon, phosphorus or sulfur
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/30—Regulating or controlling the blowing
    • C21C5/35—Blowing from above and through the bath
    • 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
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/52—Manufacture of steel in electric furnaces
    • C21C5/5211—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace
    • C21C5/5217—Manufacture of steel in electric furnaces in an alternating current [AC] electric arc furnace equipped with burners or devices for injecting gas, i.e. oxygen, or pulverulent materials into the furnace
    • 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
    • C21C7/0006—Adding metallic additives
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • 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
    • C21C7/064—Dephosphorising; Desulfurising
    • C21C7/0645—Agents used for dephosphorising or desulfurising
    • 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
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C33/00—Making ferrous alloys
    • C22C33/04—Making ferrous alloys by melting
    • 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

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
KR1020217043397A 2019-07-12 2020-06-19 Polar steel smelting method to control inclusions KR102609009B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN201910633355.7 2019-07-12
CN201910633355.7A CN110343937B (en) 2019-07-12 2019-07-12 Smelting method of steel for polar region for controlling inclusions
PCT/CN2020/096959 WO2021008299A1 (en) 2019-07-12 2020-06-19 Polar steel smelting process controlling inclusions

Publications (2)

Publication Number Publication Date
KR20220035339A true KR20220035339A (en) 2022-03-22
KR102609009B1 KR102609009B1 (en) 2023-12-04

Family

ID=68176195

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020217043397A KR102609009B1 (en) 2019-07-12 2020-06-19 Polar steel smelting method to control inclusions

Country Status (3)

Country Link
KR (1) KR102609009B1 (en)
CN (1) CN110343937B (en)
WO (1) WO2021008299A1 (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110343937B (en) * 2019-07-12 2021-04-20 南京钢铁股份有限公司 Smelting method of steel for polar region for controlling inclusions
CN111519094A (en) * 2020-04-29 2020-08-11 南京钢铁股份有限公司 Steel for railway bogie and preparation method thereof
CN111455257A (en) * 2020-04-29 2020-07-28 南京钢铁股份有限公司 Control method of steel inclusion for railway bogie
CN114438407B (en) * 2021-12-29 2022-12-09 安徽工业大学 High-fatigue-strength girder steel thick plate and preparation method thereof
CN114622130A (en) * 2022-02-18 2022-06-14 包头钢铁（集团）有限责任公司 Rare earth alloy suitable for bainite steel inclusion control and adding process thereof
CN115029509A (en) * 2022-05-23 2022-09-09 包头钢铁（集团）有限责任公司 Heavy rail ultra-low sulfur control method
CN114959428B (en) * 2022-05-24 2023-08-11 武汉科技大学 Steelmaking method of free-cutting non-quenched and tempered steel and non-quenched and tempered steel
CN115011863A (en) * 2022-07-12 2022-09-06 攀钢集团攀枝花钢铁研究院有限公司 Control method for A-type inclusions of rail steel
CN115354108A (en) * 2022-08-24 2022-11-18 山东钢铁集团日照有限公司 Method for improving strip-type MnS inclusion in steel and steel plate produced by same

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199740A (en) * 2011-05-12 2011-09-28 南京钢铁股份有限公司 Ti-Zr composite deoxidized steel used for ultrahigh-strength hull structure, and production process thereof
CN105463170A (en) * 2015-11-12 2016-04-06 内蒙古包钢钢联股份有限公司 Production method of steel plate for 36Kg level ocean platform

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3951645A (en) * 1974-08-16 1976-04-20 Jones & Laughlin Steel Corporation Steelmaking practice for production of a virtually inclusion-free semi-killed product
CN101684534B (en) * 2008-09-23 2013-04-03 宝山钢铁股份有限公司 Steel plate adapting to large-linear energy welding and manufacturing method thereof
JP5397154B2 (en) * 2009-10-23 2014-01-22 新日鐵住金株式会社 Melting method of steel material for oil pipes with high strength and high corrosion resistance
CN102011050B (en) * 2010-07-15 2012-05-30 秦皇岛首秦金属材料有限公司 Steel for 36kg-grade ocean platform and production method thereof
CN103205652A (en) * 2013-04-23 2013-07-17 南京钢铁股份有限公司 Low-temperature low-compression ratio 36kg-strength grade ship board and production method thereof
CN103695777B (en) * 2013-12-20 2016-06-22 宝山钢铁股份有限公司 The steel plate of a kind of welding heat influence area toughness excellence and manufacture method thereof
CN105256095B (en) * 2015-10-26 2017-09-26 江苏省沙钢钢铁研究院有限公司 A kind of smelting process of the steel plate of high heat-input welding heat affected zone excellent performance
CN106435360A (en) * 2016-10-25 2017-02-22 武汉科技大学 High-strength, high-toughness, corrosion-resistant and weather-resistant steel plate and manufacturing method thereof
CN110343937B (en) * 2019-07-12 2021-04-20 南京钢铁股份有限公司 Smelting method of steel for polar region for controlling inclusions

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102199740A (en) * 2011-05-12 2011-09-28 南京钢铁股份有限公司 Ti-Zr composite deoxidized steel used for ultrahigh-strength hull structure, and production process thereof
CN105463170A (en) * 2015-11-12 2016-04-06 内蒙古包钢钢联股份有限公司 Production method of steel plate for 36Kg level ocean platform

Also Published As

Publication number Publication date
KR102609009B1 (en) 2023-12-04
CN110343937B (en) 2021-04-20
WO2021008299A1 (en) 2021-01-21
CN110343937A (en) 2019-10-18

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