BR112023020630A2 - Processo para a produção de pós de aço e instalação para produção de pós de aço - Google Patents

Processo para a produção de pós de aço e instalação para produção de pós de aço

Info

Publication number
BR112023020630A2
BR112023020630A2 BR112023020630A BR112023020630A BR112023020630A2 BR 112023020630 A2 BR112023020630 A2 BR 112023020630A2 BR 112023020630 A BR112023020630 A BR 112023020630A BR 112023020630 A BR112023020630 A BR 112023020630A BR 112023020630 A2 BR112023020630 A2 BR 112023020630A2
Authority
BR
Brazil
Prior art keywords
steel
production
ppm
molten steel
steel powder
Prior art date
Application number
BR112023020630A
Other languages
English (en)
Inventor
Caro Gutierrez Alejandro
Mathieu Couvrat
Pallava Kaushik
Original Assignee
Arcelormittal
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 Arcelormittal filed Critical Arcelormittal
Publication of BR112023020630A2 publication Critical patent/BR112023020630A2/pt

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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y70/00—Materials specially adapted for additive manufacturing
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • 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
    • 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
    • C22C33/02—Making ferrous alloys by powder metallurgy
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/02—Making metallic powder or suspensions thereof using physical processes
    • B22F9/06—Making metallic powder or suspensions thereof using physical processes starting from liquid material
    • B22F9/08—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying
    • B22F9/082—Making metallic powder or suspensions thereof using physical processes starting from liquid material by casting, e.g. through sieves or in water, by atomising or spraying atomising using a fluid
    • B22F2009/0848—Melting process before atomisation

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)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Carbon Steel Or Casting Steel Manufacturing (AREA)

Abstract

processo para a produção de pós de aço e instalação para produção de pós de aço. a invenção refere-se a um processo para a produção de pós de aço compreendendo as etapas de: fornecer ferro fundido a partir de um alto-forno, refinar o ferro fundido em um conversor para formar aço fundido, refinar o aço fundido em um desgaseificador de arco a vácuo para obter um aço fundido refinado compreendendo de 20 a menos de 600 ppm de c, de 15 a menos de 120 ppm de s, até 125 ppm de p, até 80 ppm de n e até 30 ppm de o, vazando em uma pluralidade de fornos de indução, adicionando pelo menos uma ferroliga, vazando o aço fundido de cada forno de indução em um reservatório dedicado conectado a pelo menos um atomizador de gás, alimentando o pelo menos um atomizador de gás de cada reservatório em aço fundido de cada reservatório sob pressão e atomizar o referido aço fundido com gás para formar o pó de aço na composição desejada.
BR112023020630A 2021-04-21 2021-04-21 Processo para a produção de pós de aço e instalação para produção de pós de aço BR112023020630A2 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/IB2021/053289 WO2022224013A1 (en) 2021-04-21 2021-04-21 Gas atomization of molten steel

Publications (1)

Publication Number Publication Date
BR112023020630A2 true BR112023020630A2 (pt) 2023-12-05

Family

ID=75660113

Family Applications (1)

Application Number Title Priority Date Filing Date
BR112023020630A BR112023020630A2 (pt) 2021-04-21 2021-04-21 Processo para a produção de pós de aço e instalação para produção de pós de aço

Country Status (7)

Country Link
EP (1) EP4326912A1 (pt)
JP (1) JP2024516614A (pt)
KR (1) KR20230170766A (pt)
CN (1) CN117157416A (pt)
BR (1) BR112023020630A2 (pt)
CA (1) CA3215273A1 (pt)
WO (1) WO2022224013A1 (pt)

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4736466B2 (ja) * 2005-02-24 2011-07-27 Ｊｆｅスチール株式会社 高クロム溶鋼の溶製方法
CN103209791B (zh) * 2010-09-15 2016-10-05 Posco公司 铁系粉末的制备方法

Also Published As

Publication number Publication date
WO2022224013A1 (en) 2022-10-27
JP2024516614A (ja) 2024-04-16
CN117157416A (zh) 2023-12-01
EP4326912A1 (en) 2024-02-28
CA3215273A1 (en) 2022-10-27
KR20230170766A (ko) 2023-12-19

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