EP4227431A4 - V-n-mikrolegierter stahl und verfahren zur herstellung eines v-n-mikrolegierten und rissfreien stranggussrohlings - Google Patents

V-n-mikrolegierter stahl und verfahren zur herstellung eines v-n-mikrolegierten und rissfreien stranggussrohlings Download PDF

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Publication number
EP4227431A4
EP4227431A4 EP21847037.5A EP21847037A EP4227431A4 EP 4227431 A4 EP4227431 A4 EP 4227431A4 EP 21847037 A EP21847037 A EP 21847037A EP 4227431 A4 EP4227431 A4 EP 4227431A4
Authority
EP
European Patent Office
Prior art keywords
microalloyed
producing
continuous casting
casting blank
surface cracks
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
Application number
EP21847037.5A
Other languages
English (en)
French (fr)
Other versions
EP4227431A1 (de
Inventor
Zhongxue WANG
Xiaoxin HUO
Linxiu DU
Heng Ma
Aijiao CHEN
Chuanzhi DU
Wei NING
Yue Liu
Hongyan WU
Kang HE
Lifeng Zhao
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.)
Laiwu Steel Group Yinshan Section Steel Co Ltd
Original Assignee
Laiwu Steel Group Yinshan Section Steel Co Ltd
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 Laiwu Steel Group Yinshan Section Steel Co Ltd filed Critical Laiwu Steel Group Yinshan Section Steel Co Ltd
Publication of EP4227431A1 publication Critical patent/EP4227431A1/de
Publication of EP4227431A4 publication Critical patent/EP4227431A4/de
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/16—Controlling or regulating processes or operations
    • B22D11/22—Controlling or regulating processes or operations for cooling cast stock or mould
    • B22D11/225—Controlling or regulating processes or operations for cooling cast stock or mould for secondary cooling
    • 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
    • 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
    • C21C7/072—Treatment with gases
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/001—Continuous casting of metals, i.e. casting in indefinite lengths of specific alloys

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  • 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)
  • Continuous Casting (AREA)
EP21847037.5A 2020-09-18 2021-09-14 V-n-mikrolegierter stahl und verfahren zur herstellung eines v-n-mikrolegierten und rissfreien stranggussrohlings Pending EP4227431A4 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010990234.0A CN111996466B (zh) 2020-09-18 2020-09-18 V-n微合金钢及v-n微合金化的无表面裂纹连铸坯的生产方法
PCT/CN2021/118337 WO2022017545A1 (zh) 2020-09-18 2021-09-14 V-n微合金钢及v-n微合金化的无表面裂纹连铸坯的生产方法

Publications (2)

Publication Number Publication Date
EP4227431A1 EP4227431A1 (de) 2023-08-16
EP4227431A4 true EP4227431A4 (de) 2024-10-30

Family

ID=73475522

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21847037.5A Pending EP4227431A4 (de) 2020-09-18 2021-09-14 V-n-mikrolegierter stahl und verfahren zur herstellung eines v-n-mikrolegierten und rissfreien stranggussrohlings

Country Status (4)

Country Link
US (1) US20240327963A1 (de)
EP (1) EP4227431A4 (de)
CN (1) CN111996466B (de)
WO (1) WO2022017545A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996466B (zh) * 2020-09-18 2021-09-17 莱芜钢铁集团银山型钢有限公司 V-n微合金钢及v-n微合金化的无表面裂纹连铸坯的生产方法
CN114734014B (zh) * 2022-03-31 2024-01-19 东北大学 一种微合金钢板坯角部裂纹控制的冷却方法及系统
CN114686750B (zh) * 2022-04-02 2023-07-25 山东莱钢永锋钢铁有限公司 一种精准控制含钒钢种氮含量的生产方法
CN114677366B (zh) * 2022-04-19 2024-11-29 厦门汇利伟业科技有限公司 一种智能控制吹氩的方法及终端
CN115216687A (zh) * 2022-06-14 2022-10-21 阳春新钢铁有限责任公司 一种PC钢棒用25MnSiVTi热轧盘条及其制备方法
CN115338383B (zh) * 2022-08-19 2023-12-01 建龙北满特殊钢有限责任公司 一种中碳MnB钢大方坯内部角部裂纹的控制方法
CN116287969B (zh) * 2022-09-08 2024-03-08 包头钢铁（集团）有限责任公司 一种低裂纹率低合金高强度钢异型坯的生产方法
CN115717222A (zh) * 2022-11-16 2023-02-28 包头钢铁（集团）有限责任公司 一种v-n合金化a350lf6法兰用钢生产方法
CN116213668B (zh) * 2023-01-19 2024-11-29 鞍钢股份有限公司 一种vn微合金钢连铸坯表面裂纹控制方法
CN116287564B (zh) * 2023-02-06 2024-09-24 包头钢铁（集团）有限责任公司 一种lf精炼炉低氮冶炼方法
CN118600149B (zh) * 2024-08-09 2024-11-01 山西建龙实业有限公司 一种小断面含铝矩坯渣洗直上工艺生产方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173782A (en) * 1962-06-13 1965-03-16 Bethlehem Steel Corp Vanadium nitrogen steel
GB1289373A (de) * 1969-07-16 1972-09-20
CN1405351A (zh) * 2002-03-18 2003-03-26 安阳钢铁股份有限公司 用富氮和含钒合金微合金化高强度低合金钢及其冶炼方法

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CA1340418C (en) * 1989-08-18 1999-03-02 George E. Ruddle Method for manufacturing seamless tubulars using t-v-n microalloyed steels
JP4923650B2 (ja) * 2006-03-20 2012-04-25 Ｊｆｅスチール株式会社 連続鋳造鋳片の表面割れ防止方法
CN103361552A (zh) * 2012-03-30 2013-10-23 鞍钢股份有限公司 V-N微合金化460MPa级厚板及其制造方法
CN102864376B (zh) * 2012-09-13 2014-04-23 莱芜钢铁集团有限公司 一种高强度全螺纹等强树脂锚杆钢筋及其生产方法
CN106086595A (zh) * 2016-07-29 2016-11-09 中天钢铁集团有限公司 一种有效避免船用锚链圆钢产生裂纹的生产工艺
CN107866538B (zh) * 2017-11-24 2020-06-19 南京钢铁股份有限公司 一种含钒含氮微合金化包晶钢的方坯连铸生产方法
CN109852891B (zh) * 2017-11-30 2021-01-08 上海梅山钢铁股份有限公司 一种低碳含硼钢连铸板坯角部裂纹控制方法
CN111996466B (zh) * 2020-09-18 2021-09-17 莱芜钢铁集团银山型钢有限公司 V-n微合金钢及v-n微合金化的无表面裂纹连铸坯的生产方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3173782A (en) * 1962-06-13 1965-03-16 Bethlehem Steel Corp Vanadium nitrogen steel
GB1289373A (de) * 1969-07-16 1972-09-20
CN1405351A (zh) * 2002-03-18 2003-03-26 安阳钢铁股份有限公司 用富氮和含钒合金微合金化高强度低合金钢及其冶炼方法

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
See also references of WO2022017545A1 *
YANG YINGDONG ET AL: "Effect of Nitrogen Content Control on Surface Cracks of S450J0-T Hot-rolled H-shaped steel", SHANGHAI JINSHU, vol. 40, no. 3, 31 May 2018 (2018-05-31), CN, pages 69 - 72, XP055889397, ISSN: 1001-7208 *

Also Published As

Publication number Publication date
EP4227431A1 (de) 2023-08-16
WO2022017545A1 (zh) 2022-01-27
CN111996466A (zh) 2020-11-27
CN111996466B (zh) 2021-09-17
US20240327963A1 (en) 2024-10-03

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RIN1 Information on inventor provided before grant (corrected)

Inventor name: YIN, XUNQIANG

Inventor name: ZHANG, QINGPU

Inventor name: HE, KANG

Inventor name: WU, HONGYAN

Inventor name: GAO, ZHIBIN

Inventor name: DU, CHUANZHI

Inventor name: SUN, ZHENGXU

Inventor name: ZHANG, PEI

Inventor name: MA, HENG

Inventor name: DU, LINXIU

Inventor name: HUO, XIAOXIN

Inventor name: WANG, ZHONGXUE

RIC1 Information provided on ipc code assigned before grant

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