EP3770280A4 - Procédé pour la fabrication d'acier de haute pureté - Google Patents

Procédé pour la fabrication d'acier de haute pureté Download PDF

Info

Publication number
EP3770280A4
EP3770280A4 EP19770761.5A EP19770761A EP3770280A4 EP 3770280 A4 EP3770280 A4 EP 3770280A4 EP 19770761 A EP19770761 A EP 19770761A EP 3770280 A4 EP3770280 A4 EP 3770280A4
Authority
EP
European Patent Office
Prior art keywords
manufacturing
high purity
purity steel
steel
purity
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.)
Granted
Application number
EP19770761.5A
Other languages
German (de)
English (en)
Other versions
EP3770280A1 (fr
EP3770280B1 (fr
Inventor
Yoichi Ito
Masayuki Fukami
Mitsuhiro Okatsu
Kimihito Shirasaki
Masahito Tanaka
Norichika Aramaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JFE Steel Corp
Original Assignee
JFE Steel Corp
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 JFE Steel Corp filed Critical JFE Steel Corp
Publication of EP3770280A1 publication Critical patent/EP3770280A1/fr
Publication of EP3770280A4 publication Critical patent/EP3770280A4/fr
Application granted granted Critical
Publication of EP3770280B1 publication Critical patent/EP3770280B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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
    • 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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
    • 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
    • C21C7/0075—Treating in a ladle furnace, e.g. up-/reheating of molten steel within the ladle
    • 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
    • C21C7/10—Handling in a vacuum

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
EP19770761.5A 2018-03-23 2019-03-20 Procédé pour la fabrication d'acier de haute pureté Active EP3770280B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018057080 2018-03-23
PCT/JP2019/011852 WO2019182056A1 (fr) 2018-03-23 2019-03-20 Procédé pour la fabrication d'acier de haute pureté

Publications (3)

Publication Number Publication Date
EP3770280A1 EP3770280A1 (fr) 2021-01-27
EP3770280A4 true EP3770280A4 (fr) 2021-01-27
EP3770280B1 EP3770280B1 (fr) 2023-05-10

Family

ID=67987249

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19770761.5A Active EP3770280B1 (fr) 2018-03-23 2019-03-20 Procédé pour la fabrication d'acier de haute pureté

Country Status (4)

Country Link
EP (1) EP3770280B1 (fr)
JP (1) JP6648866B1 (fr)
KR (1) KR102410083B1 (fr)
WO (1) WO2019182056A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114318108A (zh) * 2021-12-02 2022-04-12 包头钢铁（集团）有限责任公司 一种超低铝高纯工业纯铁生产方法
CN114292982B (zh) * 2022-01-04 2023-04-28 马鞍山钢铁股份有限公司 一种新能源汽车电池壳用钢砂眼缺陷的控制方法
CN116770009A (zh) * 2023-07-19 2023-09-19 中国第一重型机械股份公司 一种大型碳锰钢管板钢锭及其生产方法
CN118345299B (zh) * 2024-04-19 2025-01-24 华北理工大学 一种大于1000MPa低碳高铝耐磨钢连铸坯的生产方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH108196A (ja) * 1996-06-25 1998-01-13 Sumitomo Metal Ind Ltd 溶接部の低温靱性に優れた耐ｈｉｃ鋼およびその製造方法
JPH10237533A (ja) * 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd 耐ｈｉｃ鋼の製造方法
US20120298320A1 (en) * 2008-07-15 2012-11-29 Masafumi Miyazaki Low-carbon steel slab producing method
US20170029919A1 (en) * 2014-06-18 2017-02-02 Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd. A steel rebar and a production method thereof

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3666372B2 (ja) 2000-08-18 2005-06-29 住友金属工業株式会社 耐硫化物応力腐食割れ性に優れた油井用鋼とその製造方法
JP5458607B2 (ja) * 2009-03-09 2014-04-02 Ｊｆｅスチール株式会社 耐硫化物腐食割れ性に優れた清浄鋼の製造方法
JP5397154B2 (ja) 2009-10-23 2014-01-22 新日鐵住金株式会社 高強度・高耐食性油井管用鋼材の溶製方法
JP6642174B2 (ja) * 2016-03-24 2020-02-05 日本製鉄株式会社 高炭素溶鋼の連続鋳造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH108196A (ja) * 1996-06-25 1998-01-13 Sumitomo Metal Ind Ltd 溶接部の低温靱性に優れた耐ｈｉｃ鋼およびその製造方法
JPH10237533A (ja) * 1997-02-27 1998-09-08 Sumitomo Metal Ind Ltd 耐ｈｉｃ鋼の製造方法
US20120298320A1 (en) * 2008-07-15 2012-11-29 Masafumi Miyazaki Low-carbon steel slab producing method
US20170029919A1 (en) * 2014-06-18 2017-02-02 Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd. A steel rebar and a production method thereof

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2019182056A1 *

Also Published As

Publication number Publication date
JPWO2019182056A1 (ja) 2020-04-30
KR102410083B1 (ko) 2022-06-16
JP6648866B1 (ja) 2020-02-14
EP3770280A1 (fr) 2021-01-27
WO2019182056A1 (fr) 2019-09-26
KR20200124753A (ko) 2020-11-03
EP3770280B1 (fr) 2023-05-10

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