EP2980233B8 - Method for refining ti-based inclusions in maraging steel by vacuum arc remelting - Google Patents

Method for refining ti-based inclusions in maraging steel by vacuum arc remelting Download PDF

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Publication number
EP2980233B8
EP2980233B8 EP14773993.2A EP14773993A EP2980233B8 EP 2980233 B8 EP2980233 B8 EP 2980233B8 EP 14773993 A EP14773993 A EP 14773993A EP 2980233 B8 EP2980233 B8 EP 2980233B8
Authority
EP
European Patent Office
Prior art keywords
refining
vacuum arc
based inclusions
maraging steel
arc remelting
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.)
Active
Application number
EP14773993.2A
Other languages
German (de)
French (fr)
Other versions
EP2980233A1 (en
EP2980233A4 (en
EP2980233B1 (en
Inventor
Yuuichi HADANO
Takahiko KAMIMURA
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.)
Proterial Ltd
Original Assignee
Hitachi Metals 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 Hitachi Metals Ltd filed Critical Hitachi Metals Ltd
Publication of EP2980233A1 publication Critical patent/EP2980233A1/en
Publication of EP2980233A4 publication Critical patent/EP2980233A4/en
Application granted granted Critical
Publication of EP2980233B1 publication Critical patent/EP2980233B1/en
Publication of EP2980233B8 publication Critical patent/EP2980233B8/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D23/00—Casting processes not provided for in groups B22D1/00 - B22D21/00
    • B22D23/06—Melting-down metal, e.g. metal particles, in the mould
    • B22D23/10—Electroslag casting
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D27/00—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting
    • B22D27/003—Treating the metal in the mould while it is molten or ductile ; Pressure or vacuum casting by using inert gases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D9/00—Machines or plants for casting ingots
    • B22D9/003—Machines or plants for casting ingots for top 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
    • C21C7/04—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
    • C21C7/10—Handling in a vacuum
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B9/00—General processes of refining or remelting of metals; Apparatus for electroslag or arc remelting of metals
    • C22B9/16—Remelting metals
    • C22B9/20—Arc remelting
    • 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
    • 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
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • 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
    • C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
    • 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
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • 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
    • C22C38/10—Ferrous alloys, e.g. steel alloys containing cobalt
    • C22C38/105—Ferrous alloys, e.g. steel alloys containing cobalt containing Co and Ni
    • 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
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D6/00—Heat treatment of ferrous alloys
    • C21D6/001—Heat treatment of ferrous alloys containing Ni
EP14773993.2A 2013-03-28 2014-03-20 Method for refining ti-based inclusions in maraging steel by vacuum arc remelting Active EP2980233B8 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2013068376 2013-03-28
JP2013206288 2013-10-01
PCT/JP2014/057728 WO2014156942A1 (en) 2013-03-28 2014-03-20 Process for manufacturing maraging steel and method for refining inclusions

Publications (4)

Publication Number Publication Date
EP2980233A1 EP2980233A1 (en) 2016-02-03
EP2980233A4 EP2980233A4 (en) 2017-03-29
EP2980233B1 EP2980233B1 (en) 2019-06-05
EP2980233B8 true EP2980233B8 (en) 2019-07-17

Family

ID=51623921

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14773993.2A Active EP2980233B8 (en) 2013-03-28 2014-03-20 Method for refining ti-based inclusions in maraging steel by vacuum arc remelting

Country Status (5)

Country Link
EP (1) EP2980233B8 (en)
JP (1) JP6338156B2 (en)
CN (1) CN105308196B (en)
TW (1) TWI553128B (en)
WO (1) WO2014156942A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2020124148A (en) * 2017-12-22 2022-01-24 Сандвик Интеллекчуал Проперти Аб METHOD FOR REFINING NITROGEN-CONTAINING METAL ALLOY
CN109295330B (en) * 2018-10-26 2020-06-19 北京科技大学 Method for refining nitride inclusions in nickel-based wrought superalloy
CN112501488B (en) * 2020-10-22 2021-10-26 福建三宝钢铁有限公司 Preparation process of H08A steel
CN113075211B (en) * 2021-03-29 2023-10-10 安徽工业大学 Detection method for evolution process of oxide inclusion in steel at high temperature
CN116377314B (en) * 2023-06-05 2023-10-27 成都先进金属材料产业技术研究院股份有限公司 Martensitic heat-resistant steel for gas turbine and smelting method thereof

Family Cites Families (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3353585A (en) * 1965-12-13 1967-11-21 Special Metals Corp Method for controlling the cooling of cast metal
US3344840A (en) * 1966-07-01 1967-10-03 Crucible Steel Co America Methods and apparatus for producing metal ingots
CN1007912B (en) * 1988-07-04 1990-05-09 冶金工业部钢铁研究总院 Highly toughness maraging steel
CN1014079B (en) * 1988-08-22 1991-09-25 冶金工业部钢铁研究总院 Maraging steel and method of its production
JPH0929420A (en) * 1995-07-20 1997-02-04 Kobe Steel Ltd Production of steel ingot by electroslag remelting method
JP2001214212A (en) 2000-01-28 2001-08-07 Daido Steel Co Ltd METHOD FOR PRODUCING Ti-CONTAINING STEEL IN WHICH TiN INCLUSIONS ARE REFINED
JP2001342512A (en) * 2000-06-05 2001-12-14 Sanyo Special Steel Co Ltd Highly clean steel and production method
DE10208903B4 (en) * 2002-02-28 2005-07-14 Ald Vacuum Technologies Ag Furnace for remelting a titanium block
JP2004090022A (en) * 2002-08-30 2004-03-25 Hitachi Metals Ltd Method for producing maraging steel
JP2004183097A (en) * 2002-11-19 2004-07-02 Hitachi Metals Ltd Method for producing maraging steel and maraging steel
JP2004238711A (en) * 2003-02-07 2004-08-26 Hitachi Metals Ltd HIGH PURITY Ca-CONTAINING MARAGING STEEL STRIP
CA2541319C (en) 2003-10-08 2010-04-20 Hitachi Metals, Ltd. Method of producing steel ingot
US20050173092A1 (en) * 2004-02-10 2005-08-11 Kennedy Richard L. Method and apparatus for reducing segregation in metallic ingots
JP4374529B2 (en) * 2004-02-20 2009-12-02 日立金属株式会社 Maraging steel and ribbon
CN101050509A (en) * 2007-05-17 2007-10-10 钢铁研究总院 Martensite ageing stainless steel with high strength and high toughness
CN102912152B (en) * 2012-09-19 2014-10-29 攀钢集团江油长城特殊钢有限公司 Vacuum arc remelting method for inhibiting macrosegregation of high-temperature alloy with high content of Nb

Also Published As

Publication number Publication date
JPWO2014156942A1 (en) 2017-02-16
CN105308196B (en) 2017-12-01
CN105308196A (en) 2016-02-03
EP2980233A1 (en) 2016-02-03
TWI553128B (en) 2016-10-11
WO2014156942A1 (en) 2014-10-02
TW201504454A (en) 2015-02-01
EP2980233A4 (en) 2017-03-29
JP6338156B2 (en) 2018-06-06
EP2980233B1 (en) 2019-06-05

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