EP3825434A4 - Non-oriented electrical steel sheet and method for manufacturing same - Google Patents

Non-oriented electrical steel sheet and method for manufacturing same Download PDF

Info

Publication number: EP3825434A4
Authority: EP; European Patent Office
Prior art keywords: steel sheet; electrical steel; oriented electrical; manufacturing same; manufacturing
Prior art date: 2018-07-18
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

EP18926641.4A

Other languages

German (de)

French (fr)

Other versions

EP3825434A1 (en

Inventor

Jae-Hoon Kim

Yong-Soo Kim

Su-Yong SHIN

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.)

Posco Holdings Inc

Original Assignee

Posco 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.)

2018-07-18

Filing date

2018-12-17

Publication date

2021-07-07

2018-12-17 Application filed by Posco Co Ltd filed Critical Posco Co Ltd

2021-05-26 Publication of EP3825434A1 publication Critical patent/EP3825434A1/en

2021-07-07 Publication of EP3825434A4 publication Critical patent/EP3825434A4/en

Status Pending legal-status Critical Current

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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
- 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
- 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
- C21D6/002—Heat treatment of ferrous alloys containing Cr
- 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
- C21D6/005—Heat treatment of ferrous alloys containing Mn
- 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
- C21D6/008—Heat treatment of ferrous alloys containing Si
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1222—Hot rolling
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the working step(s) being of interest
- C21D8/1233—Cold rolling
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties the heat treatment(s) being of interest
- C21D8/1272—Final recrystallisation annealing
- 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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
- C21D8/1283—Application of a separating or insulating coating
- 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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
- 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
- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
- 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
- C22C38/06—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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/34—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/38—Ferrous alloys, e.g. steel alloys containing chromium with more than 1.5% by weight of 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Materials Engineering (AREA)
Mechanical Engineering (AREA)
Metallurgy (AREA)
Organic Chemistry (AREA)
Physics & Mathematics (AREA)
Thermal Sciences (AREA)
Crystallography & Structural Chemistry (AREA)
Electromagnetism (AREA)
Manufacturing & Machinery (AREA)
Manufacturing Of Steel Electrode Plates (AREA)
Soft Magnetic Materials (AREA)

EP18926641.4A 2018-07-18 2018-12-17 Non-oriented electrical steel sheet and method for manufacturing same Pending EP3825434A4 (en)

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
KR1020180083531A KR102106409B1 (en)	2018-07-18	2018-07-18	Non-oriented electrical steel sheet and method for manufacturing the same
PCT/KR2018/016039 WO2020017713A1 (en)	2018-07-18	2018-12-17	Non-oriented electrical steel sheet and method for manufacturing same

Publications (2)

Publication Number	Publication Date
EP3825434A1 EP3825434A1 (en)	2021-05-26
EP3825434A4 true EP3825434A4 (en)	2021-07-07

Family

ID=69163754

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
EP18926641.4A Pending EP3825434A4 (en)	2018-07-18	2018-12-17	Non-oriented electrical steel sheet and method for manufacturing same

Country Status (5)

Country	Link
EP (1)	EP3825434A4 (en)
JP (1)	JP7273945B2 (en)
KR (1)	KR102106409B1 (en)
CN (1)	CN112424386A (en)
WO (1)	WO2020017713A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP7477748B2 (en)	2020-02-20	2024-05-02	日本製鉄株式会社	Non-oriented electrical steel sheets and hot-rolled steel sheets
KR20230095257A (en) *	2021-12-22	2023-06-29	주식회사 포스코	Non-oriented electrical steel sheet and method for manufacturing the same

Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6428632B1 (en) *	1999-11-26	2002-08-06	Kawasaki Steel Corporation	Non-oriented electromagnetic steel sheet having reduced magnetic anisotropy in high frequency region and excellent press workability
JP2013010982A (en) *	2011-06-28	2013-01-17	Jfe Steel Corp	Method for manufacturing non-oriented electromagnetic steel sheet
JP2013044010A (en) *	2011-08-23	2013-03-04	Nippon Steel & Sumitomo Metal Corp	Non-oriented electromagnetic steel sheet, and method of producing the same
KR20130076547A (en) *	2011-12-28	2013-07-08	주식회사 포스코	Non-oriented electrical steel sheets and method for manufacturing the same
US20150348686A1 (en) *	2013-02-22	2015-12-03	Jfe Steel Corporation	Hot-rolled steel sheet for producing non-oriented electrical steel sheet and method of producing same
WO2017098800A1 (en) *	2015-12-09	2017-06-15	Ｊｆｅスチール株式会社	Non-directional electromagnetic steel sheet manufacturing method

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
JP2701314B2 (en) *	1988-05-10	1998-01-21	日本鋼管株式会社	Non-oriented electrical steel sheet excellent in magnetic properties and method for producing the same
JP4116748B2 (en) *	1999-12-16	2008-07-09	新日本製鐵株式会社	Magnet buried type non-oriented electrical steel sheet for motor
JP4589747B2 (en) *	2005-02-04	2010-12-01	新日本製鐵株式会社	Non-oriented electrical steel sheet with excellent magnetic properties, its manufacturing method and strain relief annealing method
CN101812571B (en) *	2009-02-24	2011-09-21	宝山钢铁股份有限公司	Method for preventing internal oxidation layer in normalization treatment of electrical hot-rolled strip steel
KR20140060725A (en) *	2012-11-12	2014-05-21	주식회사 포스코	Non-oriented electrical steel steet and manufacturing method for the same
JP5975076B2 (en) *	2014-08-27	2016-08-23	Ｊｆｅスチール株式会社	Non-oriented electrical steel sheet and manufacturing method thereof
JP6627226B2 (en) *	2015-02-24	2020-01-08	日本製鉄株式会社	Manufacturing method of non-oriented electrical steel sheet
JP6319586B2 (en) *	2015-04-10	2018-05-09	Ｊｆｅスチール株式会社	Method for producing non-oriented electrical steel sheet
EP3333271B1 (en) *	2015-08-04	2020-06-17	JFE Steel Corporation	Method for manufacturing non-oriented electromagnetic steel sheet with excellent magnetic properties
JP6794704B2 (en) *	2016-08-05	2020-12-02	日本製鉄株式会社	Manufacturing method of non-oriented electrical steel sheet, non-oriented electrical steel sheet and manufacturing method of motor core
JP6794705B2 (en) *	2016-08-05	2020-12-02	日本製鉄株式会社	Manufacturing method of non-oriented electrical steel sheet, non-oriented electrical steel sheet and manufacturing method of motor core
JP6724712B2 (en) *	2016-10-18	2020-07-15	日本製鉄株式会社	Non-oriented electrical steel sheet
KR101918720B1 (en) *	2016-12-19	2018-11-14	주식회사 포스코	Non-oriented electrical steel sheet and method for manufacturing the same

2018
- 2018-07-18 KR KR1020180083531A patent/KR102106409B1/en active IP Right Grant
- 2018-12-17 CN CN201880095745.7A patent/CN112424386A/en active Pending
- 2018-12-17 WO PCT/KR2018/016039 patent/WO2020017713A1/en active Application Filing
- 2018-12-17 EP EP18926641.4A patent/EP3825434A4/en active Pending
- 2018-12-17 JP JP2021502790A patent/JP7273945B2/en active Active

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US6428632B1 (en) *	1999-11-26	2002-08-06	Kawasaki Steel Corporation	Non-oriented electromagnetic steel sheet having reduced magnetic anisotropy in high frequency region and excellent press workability
JP2013010982A (en) *	2011-06-28	2013-01-17	Jfe Steel Corp	Method for manufacturing non-oriented electromagnetic steel sheet
JP2013044010A (en) *	2011-08-23	2013-03-04	Nippon Steel & Sumitomo Metal Corp	Non-oriented electromagnetic steel sheet, and method of producing the same
KR20130076547A (en) *	2011-12-28	2013-07-08	주식회사 포스코	Non-oriented electrical steel sheets and method for manufacturing the same
US20150348686A1 (en) *	2013-02-22	2015-12-03	Jfe Steel Corporation	Hot-rolled steel sheet for producing non-oriented electrical steel sheet and method of producing same
WO2017098800A1 (en) *	2015-12-09	2017-06-15	Ｊｆｅスチール株式会社	Non-directional electromagnetic steel sheet manufacturing method

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2020017713A1 *

Also Published As

Publication number	Publication date
KR102106409B1 (en)	2020-05-04
JP2021532257A (en)	2021-11-25
KR20200009321A (en)	2020-01-30
JP7273945B2 (en)	2023-05-15
EP3825434A1 (en)	2021-05-26
WO2020017713A1 (en)	2020-01-23
CN112424386A (en)	2021-02-26

Legal Events

Date	Code	Title	Description
2020-01-25	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: THE INTERNATIONAL PUBLICATION HAS BEEN MADE
2021-04-23	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
2021-04-23	STAA	Information on the status of an ep patent application or granted ep patent	Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE
2021-05-26	17P	Request for examination filed	Effective date: 20210202
2021-05-26	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
2021-06-23	RIC1	Information provided on ipc code assigned before grant	Ipc: C22C 38/34 20060101AFI20210519BHEP Ipc: C22C 38/06 20060101ALI20210519BHEP Ipc: C22C 38/38 20060101ALI20210519BHEP Ipc: C22C 38/04 20060101ALI20210519BHEP Ipc: C22C 38/60 20060101ALI20210519BHEP Ipc: C22C 38/00 20060101ALI20210519BHEP Ipc: C21D 9/46 20060101ALI20210519BHEP Ipc: C21D 8/12 20060101ALI20210519BHEP Ipc: C21D 6/00 20060101ALI20210519BHEP
2021-07-07	A4	Supplementary search report drawn up and despatched	Effective date: 20210604
2021-07-07	RIC1	Information provided on ipc code assigned before grant	Ipc: C22C 38/34 20060101AFI20210528BHEP Ipc: C22C 38/06 20060101ALI20210528BHEP Ipc: C22C 38/38 20060101ALI20210528BHEP Ipc: C22C 38/04 20060101ALI20210528BHEP Ipc: C22C 38/60 20060101ALI20210528BHEP Ipc: C22C 38/00 20060101ALI20210528BHEP Ipc: C21D 9/46 20060101ALI20210528BHEP Ipc: C21D 8/12 20060101ALI20210528BHEP Ipc: C21D 6/00 20060101ALI20210528BHEP
2021-10-27	DAV	Request for validation of the european patent (deleted)
2021-10-27	DAX	Request for extension of the european patent (deleted)
2022-11-23	RAP3	Party data changed (applicant data changed or rights of an application transferred)	Owner name: POSCO HOLDINGS INC.
2023-02-08	RAP1	Party data changed (applicant data changed or rights of an application transferred)	Owner name: POSCO CO., LTD

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