EP4520461A4 - Apparatus for producing granular iron and method for producing granular iron - Google Patents

Apparatus for producing granular iron and method for producing granular iron

Info

Publication number
EP4520461A4
EP4520461A4 EP23842841.1A EP23842841A EP4520461A4 EP 4520461 A4 EP4520461 A4 EP 4520461A4 EP 23842841 A EP23842841 A EP 23842841A EP 4520461 A4 EP4520461 A4 EP 4520461A4
Authority
EP
European Patent Office
Prior art keywords
granular iron
producing granular
iron
producing
granular
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
EP23842841.1A
Other languages
German (de)
French (fr)
Other versions
EP4520461A1 (en
Inventor
Kazuhiro Tsuchida
Shunsuke Mori
Satoshi Kawahata
Arihiro Matsunaga
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 EP4520461A1 publication Critical patent/EP4520461A1/en
Publication of EP4520461A4 publication Critical patent/EP4520461A4/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • B22F1/00—Metallic powder; Treatment of metallic powder, e.g. to facilitate working or to improve properties
    • B22F1/05—Metallic powder characterised by the size or surface area of the particles
    • B22F1/054—Nanosized particles
    • B22F1/0551—Flake form nanoparticles
    • 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
    • B22F2009/0804—Dispersion in or on liquid, other than with sieves
    • 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
    • B22F2009/0804—Dispersion in or on liquid, other than with sieves
    • B22F2009/0808—Mechanical dispersion of melt, e.g. by sieves
    • 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
    • B22F2009/086—Cooling after atomisation
    • B22F2009/0872—Cooling after atomisation by water
    • 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
    • B22F2009/0896—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 particle transport, separation: process and apparatus
    • 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
    • B22F2301/00—Metallic composition of the powder or its coating
    • B22F2301/35—Iron

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Inorganic Chemistry (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Furnace Details (AREA)
EP23842841.1A 2022-07-19 2023-07-06 Apparatus for producing granular iron and method for producing granular iron Pending EP4520461A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022114591 2022-07-19
PCT/JP2023/025176 WO2024018916A1 (en) 2022-07-19 2023-07-06 Granular iron manufacturing device and granular iron manufacturing method

Publications (2)

Publication Number Publication Date
EP4520461A1 EP4520461A1 (en) 2025-03-12
EP4520461A4 true EP4520461A4 (en) 2025-06-18

Family

ID=89617820

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23842841.1A Pending EP4520461A4 (en) 2022-07-19 2023-07-06 Apparatus for producing granular iron and method for producing granular iron

Country Status (6)

Country Link
US (1) US20260027620A1 (en)
EP (1) EP4520461A4 (en)
JP (1) JP7468820B1 (en)
KR (1) KR20250024067A (en)
CN (1) CN119497652A (en)
WO (1) WO2024018916A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7708337B1 (en) * 2023-12-20 2025-07-15 Ｊｆｅスチール株式会社 Granulated iron manufacturing equipment
CN121360809B (en) * 2025-12-18 2026-03-24 福建中伟半导体材料有限公司 A process for preparing high-purity cadmium powder

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170144227A1 (en) * 2014-03-31 2017-05-25 Jfe Steel Corporation Method of producing atomized metal powder
JP6372442B2 (en) * 2015-07-31 2018-08-15 Ｊｆｅスチール株式会社 Method for producing water atomized metal powder
JP2021161465A (en) * 2020-03-31 2021-10-11 Ｊｆｅスチール株式会社 Granular iron manufacturing apparatus

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE312642B (en) 1968-02-05 1969-07-21 Uddeholms Ab
JPS5220948A (en) 1975-07-24 1977-02-17 Osaka Denki Co Ltd Gas shielded type arc welding process
JPH0920902A (en) 1995-06-30 1997-01-21 Nippon Steel Corp Method of manufacturing granular pig iron
JP6565941B2 (en) 2017-01-18 2019-08-28 Ｊｆｅスチール株式会社 Method for producing soft magnetic iron powder
JP7251498B2 (en) * 2020-02-17 2023-04-04 Ｊｆｅスチール株式会社 Granulated iron manufacturing equipment

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20170144227A1 (en) * 2014-03-31 2017-05-25 Jfe Steel Corporation Method of producing atomized metal powder
JP6372442B2 (en) * 2015-07-31 2018-08-15 Ｊｆｅスチール株式会社 Method for producing water atomized metal powder
JP2021161465A (en) * 2020-03-31 2021-10-11 Ｊｆｅスチール株式会社 Granular iron manufacturing apparatus

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2024018916A1 *

Also Published As

Publication number Publication date
KR20250024067A (en) 2025-02-18
US20260027620A1 (en) 2026-01-29
JPWO2024018916A1 (en) 2024-01-25
JP7468820B1 (en) 2024-04-16
EP4520461A1 (en) 2025-03-12
CN119497652A (en) 2025-02-21
WO2024018916A1 (en) 2024-01-25

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