RU2572636C1 - Лист текстурированной электротехнической стали и способ его изготовления - Google Patents
Лист текстурированной электротехнической стали и способ его изготовления Download PDFInfo
- Publication number
- RU2572636C1 RU2572636C1 RU2014130094/02A RU2014130094A RU2572636C1 RU 2572636 C1 RU2572636 C1 RU 2572636C1 RU 2014130094/02 A RU2014130094/02 A RU 2014130094/02A RU 2014130094 A RU2014130094 A RU 2014130094A RU 2572636 C1 RU2572636 C1 RU 2572636C1
- Authority
- RU
- Russia
- Prior art keywords
- steel sheet
- domains
- irradiation
- regions
- sheet
- Prior art date
Links
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 49
- 239000010959 steel Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000005381 magnetic domain Effects 0.000 claims abstract description 29
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 238000010894 electron beam technology Methods 0.000 claims description 21
- 229910000976 Electrical steel Inorganic materials 0.000 claims description 18
- 230000001678 irradiating effect Effects 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000126 substance Substances 0.000 abstract description 2
- 238000005272 metallurgy Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 34
- 239000011248 coating agent Substances 0.000 description 15
- 238000000576 coating method Methods 0.000 description 15
- 229910052742 iron Inorganic materials 0.000 description 14
- 238000000227 grinding Methods 0.000 description 9
- 230000009467 reduction Effects 0.000 description 7
- 230000006872 improvement Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000005855 radiation Effects 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000012634 optical imaging Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- NRNCYVBFPDDJNE-UHFFFAOYSA-N pemoline Chemical compound O1C(N)=NC(=O)C1C1=CC=CC=C1 NRNCYVBFPDDJNE-UHFFFAOYSA-N 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000012935 Averaging Methods 0.000 description 1
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 229910019142 PO4 Inorganic materials 0.000 description 1
- 229910004283 SiO 4 Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000005404 magnetometry Methods 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 239000010452 phosphate Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
- H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
- H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
- H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
- H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
- H01F1/16—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys in the form of sheets
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
-
- 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
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/38—Heating by cathodic discharges
-
- 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
- C21D8/1294—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a localized treatment
-
- 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
- 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
- C21D2201/00—Treatment for obtaining particular effects
- C21D2201/05—Grain orientation
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Dispersion Chemistry (AREA)
- Power Engineering (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011282271 | 2011-12-22 | ||
| JP2011-282271 | 2011-12-22 | ||
| PCT/JP2012/008202 WO2013094218A1 (ja) | 2011-12-22 | 2012-12-21 | 方向性電磁鋼板およびその製造方法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| RU2572636C1 true RU2572636C1 (ru) | 2016-01-20 |
Family
ID=48668135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| RU2014130094/02A RU2572636C1 (ru) | 2011-12-22 | 2012-12-21 | Лист текстурированной электротехнической стали и способ его изготовления |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US10020101B2 (OSRAM) |
| EP (1) | EP2796583B1 (OSRAM) |
| JP (1) | JP5761375B2 (OSRAM) |
| KR (1) | KR101551782B1 (OSRAM) |
| CN (1) | CN104011241B (OSRAM) |
| IN (1) | IN2014MN01092A (OSRAM) |
| RU (1) | RU2572636C1 (OSRAM) |
| WO (1) | WO2013094218A1 (OSRAM) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2819013C2 (ru) * | 2021-03-26 | 2024-05-08 | Ниппон Стил Корпорейшн | Лист анизотропной электротехнической стали и способ его производства |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6010907B2 (ja) * | 2011-12-28 | 2016-10-19 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板およびその製造方法 |
| JP5935880B2 (ja) | 2012-04-27 | 2016-06-15 | 新日鐵住金株式会社 | 方向性電磁鋼板及びその製造方法 |
| JP6015723B2 (ja) * | 2013-08-30 | 2016-10-26 | Ｊｆｅスチール株式会社 | 低騒音変圧器鉄心用方向性電磁鋼板の製造方法 |
| JP6160376B2 (ja) * | 2013-09-06 | 2017-07-12 | Ｊｆｅスチール株式会社 | 変圧器鉄心用方向性電磁鋼板およびその製造方法 |
| JP6060988B2 (ja) | 2015-02-24 | 2017-01-18 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板及びその製造方法 |
| WO2017130980A1 (ja) * | 2016-01-25 | 2017-08-03 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板およびその製造方法 |
| JP2017106117A (ja) * | 2017-01-04 | 2017-06-15 | Ｊｆｅスチール株式会社 | 変圧器鉄心用方向性電磁鋼板およびその製造方法 |
| KR102360385B1 (ko) * | 2018-01-31 | 2022-02-08 | 제이에프이 스틸 가부시키가이샤 | 방향성 전자 강판 및 이것을 이용하여 이루어지는 변압기의 권철심과 권철심의 제조 방법 |
| CN111886662B (zh) * | 2018-03-30 | 2023-05-12 | 杰富意钢铁株式会社 | 变压器用铁芯 |
| EP3780036B1 (en) * | 2018-03-30 | 2023-09-13 | JFE Steel Corporation | Iron core for transformer |
| KR102162984B1 (ko) * | 2018-12-19 | 2020-10-07 | 주식회사 포스코 | 방향성 전기강판 및 그의 제조 방법 |
| WO2022013960A1 (ja) * | 2020-07-15 | 2022-01-20 | 日本製鉄株式会社 | 方向性電磁鋼板および方向性電磁鋼板の製造方法 |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2301839C2 (ru) * | 2003-03-19 | 2007-06-27 | Ниппон Стил Корпорейшн | Текстурированный лист из электротехнической стали с высокими электрическими характеристиками и способ его изготовления |
| RU2378395C1 (ru) * | 2006-05-24 | 2010-01-10 | Ниппон Стил Корпорейшн | Лист текстурированной электротехнической стали с улучшенными характеристиками потерь в сердечнике |
Family Cites Families (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5819440A (ja) | 1981-07-24 | 1983-02-04 | Nippon Steel Corp | 電磁鋼板の鉄損特性向上方法 |
| JPS58144424A (ja) * | 1982-02-19 | 1983-08-27 | Kawasaki Steel Corp | 低鉄損方向性電磁鋼板の製造方法 |
| JPS6092479A (ja) | 1983-10-27 | 1985-05-24 | Kawasaki Steel Corp | 歪取り焼鈍によつて特性が劣化しない低鉄損の方向性けい素鋼板およびその製造方法 |
| JPH0615694B2 (ja) * | 1987-04-17 | 1994-03-02 | 川崎製鉄株式会社 | 方向性けい素鋼板の鉄損低減方法 |
| JPH0659685B2 (ja) | 1988-06-28 | 1994-08-10 | キョーラク株式会社 | プラスチック中空体の成形方法 |
| JPH0765106B2 (ja) | 1988-10-26 | 1995-07-12 | 川崎製鉄株式会社 | 低鉄損一方向性けい素鋼板の製造方法 |
| JP2719832B2 (ja) | 1989-06-09 | 1998-02-25 | ユーホーケミカル株式会社 | はんだペースト |
| JPH0372027A (ja) * | 1989-08-11 | 1991-03-27 | Nippon Steel Corp | 鉄損の優れた高磁束密度一方向性電磁鋼板の製造方法 |
| JPH0372026A (ja) * | 1989-08-11 | 1991-03-27 | Nippon Steel Corp | 鉄損の著しく優れた高磁束密度一方向性電磁鋼板の製造方法 |
| JP3023242B2 (ja) | 1992-05-29 | 2000-03-21 | 川崎製鉄株式会社 | 騒音特性の優れた低鉄損一方向性珪素鋼板の製造方法 |
| JPH0765106A (ja) | 1993-08-25 | 1995-03-10 | Fuji Electric Co Ltd | バーコード読取り装置 |
| CN1083895C (zh) * | 1997-01-24 | 2002-05-01 | 新日本制铁株式会社 | 具有优良磁性能的晶粒取向性电工钢薄板及其生产工艺和设备 |
| JP3386727B2 (ja) | 1998-09-29 | 2003-03-17 | 川崎製鉄株式会社 | 保磁力の低い低鉄損一方向性珪素鋼板の製造方法 |
| JP4091749B2 (ja) * | 2000-04-24 | 2008-05-28 | 新日本製鐵株式会社 | 磁気特性の優れた方向性電磁鋼板 |
| EP1149924B1 (en) | 2000-04-24 | 2009-07-15 | Nippon Steel Corporation | Grain-oriented electrical steel sheet excellent in magnetic properties |
| JP4123679B2 (ja) | 2000-04-25 | 2008-07-23 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板の製造方法 |
| JP4216488B2 (ja) * | 2000-05-12 | 2009-01-28 | 新日本製鐵株式会社 | 方向性電磁鋼板及びその製造方法 |
| JP4585101B2 (ja) | 2000-08-25 | 2010-11-24 | 新日本製鐵株式会社 | 低騒音トランス用電磁鋼板 |
| JP4344264B2 (ja) | 2004-03-08 | 2009-10-14 | 新日本製鐵株式会社 | 低鉄損一方向性電磁鋼板 |
| JP4616623B2 (ja) | 2004-11-18 | 2011-01-19 | 新日本製鐵株式会社 | 方向性電磁鋼板の製造方法 |
| KR101296990B1 (ko) * | 2010-07-28 | 2013-08-14 | 신닛테츠스미킨 카부시키카이샤 | 방향성 전자기 강판 및 그 제조 방법 |
| WO2013099258A1 (ja) | 2011-12-27 | 2013-07-04 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板 |
| JP6007501B2 (ja) * | 2012-02-08 | 2016-10-12 | Ｊｆｅスチール株式会社 | 方向性電磁鋼板 |
-
2012
- 2012-12-21 US US14/367,654 patent/US10020101B2/en active Active
- 2012-12-21 RU RU2014130094/02A patent/RU2572636C1/ru active
- 2012-12-21 KR KR1020147016938A patent/KR101551782B1/ko active Active
- 2012-12-21 EP EP12860627.4A patent/EP2796583B1/en active Active
- 2012-12-21 CN CN201280063637.4A patent/CN104011241B/zh active Active
- 2012-12-21 WO PCT/JP2012/008202 patent/WO2013094218A1/ja not_active Ceased
- 2012-12-21 IN IN1092MUN2014 patent/IN2014MN01092A/en unknown
- 2012-12-21 JP JP2013550134A patent/JP5761375B2/ja active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2301839C2 (ru) * | 2003-03-19 | 2007-06-27 | Ниппон Стил Корпорейшн | Текстурированный лист из электротехнической стали с высокими электрическими характеристиками и способ его изготовления |
| RU2378395C1 (ru) * | 2006-05-24 | 2010-01-10 | Ниппон Стил Корпорейшн | Лист текстурированной электротехнической стали с улучшенными характеристиками потерь в сердечнике |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2819013C2 (ru) * | 2021-03-26 | 2024-05-08 | Ниппон Стил Корпорейшн | Лист анизотропной электротехнической стали и способ его производства |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5761375B2 (ja) | 2015-08-12 |
| WO2013094218A8 (ja) | 2014-06-05 |
| IN2014MN01092A (OSRAM) | 2015-07-03 |
| EP2796583A4 (en) | 2015-05-06 |
| JPWO2013094218A1 (ja) | 2015-04-27 |
| US10020101B2 (en) | 2018-07-10 |
| KR101551782B1 (ko) | 2015-09-09 |
| CN104011241B (zh) | 2016-06-29 |
| EP2796583B1 (en) | 2017-03-29 |
| CN104011241A (zh) | 2014-08-27 |
| KR20140103973A (ko) | 2014-08-27 |
| EP2796583A1 (en) | 2014-10-29 |
| US20150034211A1 (en) | 2015-02-05 |
| WO2013094218A1 (ja) | 2013-06-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| RU2572636C1 (ru) | Лист текстурированной электротехнической стали и способ его изготовления | |
| RU2400542C1 (ru) | Лист текстурованной электротехнической стали, более совершенный по потерям мощности | |
| RU2597190C1 (ru) | Лист электротехнической текстурированной стали для железного сердечника и способ его изготовления | |
| RU2570250C1 (ru) | Текстурированный лист из электротехнической стали | |
| EP2602344B1 (en) | Oriented electromagnetic steel plate | |
| RU2509814C1 (ru) | Электротехническая листовая сталь с ориентированными зернами и способ ее производства | |
| KR101345469B1 (ko) | 방향성 전자기 강판 및 그 제조 방법 | |
| JP4593678B2 (ja) | 低鉄損一方向性電磁鋼板及びその製造方法 | |
| RU2611457C2 (ru) | Текстурированный лист электротехнической стали и способ его изготовления | |
| EP2799572B1 (en) | Method for manufacturing a grain-oriented electrical steel sheet | |
| CN104203486A (zh) | 方向性电磁钢板及其制造方法 | |
| JP4344264B2 (ja) | 低鉄損一方向性電磁鋼板 | |
| JPH11293340A (ja) | 低鉄損方向性電磁鋼板及びその製造方法 | |
| JP4719319B2 (ja) | 一方向性電磁鋼板及びその製造方法 | |
| JPWO2020158732A1 (ja) | 方向性電磁鋼板及びその製造方法 | |
| CN116685698A (zh) | 方向性电磁钢板及其制造方法 | |
| RU2710496C1 (ru) | Текстурированный лист из электротехнической стали и способ производства такого листа | |
| EP4199015A1 (en) | Wound core | |
| JP4276618B2 (ja) | 低鉄損一方向性電磁鋼板 | |
| JP2004197126A (ja) | 透磁率の高い方向性電磁鋼板および方向性電磁鋼板の透磁率を増加させる方法 |