EP3878580A4 - Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby - Google Patents

Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby Download PDF

Info

Publication number
EP3878580A4
EP3878580A4 EP19881941.9A EP19881941A EP3878580A4 EP 3878580 A4 EP3878580 A4 EP 3878580A4 EP 19881941 A EP19881941 A EP 19881941A EP 3878580 A4 EP3878580 A4 EP 3878580A4
Authority
EP
European Patent Office
Prior art keywords
shaped
rod
iron powder
needle
porous iron
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.)
Withdrawn
Application number
EP19881941.9A
Other languages
German (de)
French (fr)
Other versions
EP3878580A1 (en
Inventor
Gil-Soo Han
Hyung-Sub EOM
Jin-Gyun PARK
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.)
Research Institute of Industrial Science and Technology RIST
Posco Holdings Inc
Original Assignee
Posco Co Ltd
Research Institute of Industrial Science and Technology RIST
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 Posco Co Ltd, Research Institute of Industrial Science and Technology RIST filed Critical Posco Co Ltd
Publication of EP3878580A1 publication Critical patent/EP3878580A1/en
Publication of EP3878580A4 publication Critical patent/EP3878580A4/en
Withdrawn legal-status Critical Current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
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/24—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from liquid metal compounds, e.g. solutions
    • 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
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • 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
    • B22F1/06—Metallic powder characterised by the shape of the particles
    • B22F1/062—Fibrous particles
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/01—Reducing atmosphere
    • B22F2201/013—Hydrogen
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/03—Oxygen
    • 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
    • B22F2201/00—Treatment under specific atmosphere
    • B22F2201/04—CO or CO2
    • 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
    • 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
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Nanotechnology (AREA)
  • Manufacture Of Metal Powder And Suspensions Thereof (AREA)
  • Compounds Of Iron (AREA)
  • Powder Metallurgy (AREA)
EP19881941.9A 2018-11-05 2019-11-04 Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby Withdrawn EP3878580A4 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020180134325A KR102175428B1 (en) 2018-11-05 2018-11-05 Manufacturing method of cylindrical porous iron powder
PCT/KR2019/014795 WO2020096293A1 (en) 2018-11-05 2019-11-04 Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby

Publications (2)

Publication Number Publication Date
EP3878580A1 EP3878580A1 (en) 2021-09-15
EP3878580A4 true EP3878580A4 (en) 2021-12-29

Family

ID=70612034

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19881941.9A Withdrawn EP3878580A4 (en) 2018-11-05 2019-11-04 Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby

Country Status (6)

Country Link
US (1) US20220008992A1 (en)
EP (1) EP3878580A4 (en)
JP (1) JP2022506098A (en)
KR (1) KR102175428B1 (en)
CN (1) CN112969544A (en)
WO (1) WO2020096293A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102477414B1 (en) * 2022-06-08 2022-12-15 김준현 Multi-functional mortar composition and method for repairing and reinforcing concrete and steel structure using the same and inorganic coating agent for protecting surface

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662051A (en) * 1948-01-06 1951-11-28 Davide Primavesi Improved chemical process for producing powdered iron
EP0014889A1 (en) * 1979-02-24 1980-09-03 BASF Aktiengesellschaft Method for the preparation of acicular ferromagnetic iron particles
US4464196A (en) * 1983-08-24 1984-08-07 Hercules Incorporated Acicular ferromagnetic metal particles
US20050145068A1 (en) * 2003-11-26 2005-07-07 Hoganas Ab Food additive

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR950006268B1 (en) * 1993-07-16 1995-06-13 김미라 Making method of powder metal
KR0157067B1 (en) * 1993-08-26 1999-03-30 스마 요시츠기 Rolling element
FR2794672B1 (en) * 1999-06-10 2001-09-07 Asb Aerospatiale Batteries PROCESS FOR THE PREPARATION OF METAL POWDERS, METAL POWDERS THUS PREPARED AND COMPACTS INCLUDING SUCH POWDERS
JP2005145757A (en) * 2003-11-14 2005-06-09 Nisshin Steel Co Ltd Method for manufacturing iron oxide powder
CN101898800A (en) * 2010-02-03 2010-12-01 深圳市东江环保股份有限公司 Method for preparing iron oxide red by using ferrous chloride
US20160096739A1 (en) 2014-09-29 2016-04-07 Innova Powders, Inc. Iron powder product with high specific surface area
TWI570245B (en) * 2015-11-19 2017-02-11 Taiwan Powder Technologies Co Ltd A method for preparing a porous spherical iron-based alloy powder by a reduction reaction, the powder and the powder are prepared Sintered body
KR101798731B1 (en) * 2015-12-24 2017-11-17 주식회사 포스코 Method for manufacturing iron oxide
KR101924274B1 (en) * 2017-01-11 2018-11-30 국방과학연구소 Manufacturing method using two-step reduction for iron metal powders and iron metal powders by the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB662051A (en) * 1948-01-06 1951-11-28 Davide Primavesi Improved chemical process for producing powdered iron
EP0014889A1 (en) * 1979-02-24 1980-09-03 BASF Aktiengesellschaft Method for the preparation of acicular ferromagnetic iron particles
US4464196A (en) * 1983-08-24 1984-08-07 Hercules Incorporated Acicular ferromagnetic metal particles
US20050145068A1 (en) * 2003-11-26 2005-07-07 Hoganas Ab Food additive

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020096293A1 *

Also Published As

Publication number Publication date
KR102175428B1 (en) 2020-11-06
CN112969544A (en) 2021-06-15
JP2022506098A (en) 2022-01-17
KR20200051233A (en) 2020-05-13
EP3878580A1 (en) 2021-09-15
WO2020096293A1 (en) 2020-05-14
US20220008992A1 (en) 2022-01-13

Similar Documents

Publication Publication Date Title
EP3633075A4 (en) Metal porous body and method for producing metal porous body
EP3708008A4 (en) Oil-and-fat composition and manufacturing method therefor
EP3605570A4 (en) Method for manufacturing sintered magnet and sintered magnet
EP3598537A4 (en) Electrode mixture manufacturing method and electrode mixture
GB2565653B (en) Manufacturing apparatus for metal powder and manufacturing method thereof
GB2565654B (en) Manufacturing apparatus for metal powder and manufacturing method thereof
EP3590361A4 (en) Luteolin-containing composition and method for manufacturing same
EP3868733A4 (en) Porous layered ceramic and method for manufacturing same
EP3892744A4 (en) Sintered ore manufacturing method
EP3550037A4 (en) Method for manufacturing sintered ore
EP3680296A4 (en) Binder composition, rigid body , and method for manufacturing rigid body
EP3639797A4 (en) Heating body and method for manufacturing same
EP3596027A4 (en) Porous ceramic particles and method of forming porous ceramic particles
EP3537528A4 (en) Electrode assembly manufacturing apparatus and electrode assembly manufacturing method
GB201801331D0 (en) Porous carbonaceous materials and methods for their manufacture
EP3674430A4 (en) Metallic porous body and production method for metallic porous body
EP3878580A4 (en) Method for manufacturing needle-shaped or rod-shaped porous iron powder and needle-shaped or rod-shaped porous iron powder manufactured thereby
EP3774137A4 (en) System and method for powder manufacturing
EP3696951A4 (en) Armature and method for manufacturing armature
EP3582314A4 (en) Electrode assembly and method for manufacturing same
EP3696948A4 (en) Armature and method for manufacturing same
EP3649986A4 (en) Implant and method for manufacturing same
EP3605693A4 (en) Method for manufacturing electrochemical element and electrochemical element
EP3854500A4 (en) Easily-crushable copper powder and manufacturing method therefor
EP3680045A4 (en) Metal powder manufacturing device and metal powder manufacturing method

Legal Events

Date Code Title Description
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE

PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210520

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

A4 Supplementary search report drawn up and despatched

Effective date: 20211201

RIC1 Information provided on ipc code assigned before grant

Ipc: B22F 9/22 20060101ALI20211125BHEP

Ipc: B22F 1/00 20060101AFI20211125BHEP

DAV Request for validation of the european patent (deleted)
DAX Request for extension of the european patent (deleted)
STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN WITHDRAWN

18W Application withdrawn

Effective date: 20220620