JP6928094B2 - 方向性電磁鋼板およびその磁区微細化方法 - Google Patents
方向性電磁鋼板およびその磁区微細化方法 Download PDFInfo
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- 229910000831 Steel Inorganic materials 0.000 title claims description 92
- 239000010959 steel Substances 0.000 title claims description 92
- 238000000034 method Methods 0.000 title claims description 26
- 230000005381 magnetic domain Effects 0.000 title claims description 21
- 239000010410 layer Substances 0.000 claims description 79
- 229910045601 alloy Inorganic materials 0.000 claims description 36
- 239000000956 alloy Substances 0.000 claims description 36
- 238000000137 annealing Methods 0.000 claims description 35
- 229910052755 nonmetal Inorganic materials 0.000 claims description 31
- 150000004706 metal oxides Chemical class 0.000 claims description 30
- 238000001953 recrystallisation Methods 0.000 claims description 28
- 239000002245 particle Substances 0.000 claims description 14
- 238000001816 cooling Methods 0.000 claims description 13
- 238000010791 quenching Methods 0.000 claims description 11
- 230000000171 quenching effect Effects 0.000 claims description 11
- 229910004283 SiO 4 Inorganic materials 0.000 claims description 9
- 239000011247 coating layer Substances 0.000 claims description 8
- 230000001678 irradiating effect Effects 0.000 claims description 8
- 238000005096 rolling process Methods 0.000 claims description 7
- 238000009826 distribution Methods 0.000 claims description 4
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 229910000976 Electrical steel Inorganic materials 0.000 claims 1
- 238000005121 nitriding Methods 0.000 claims 1
- 238000007670 refining Methods 0.000 claims 1
- 238000004544 sputter deposition Methods 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 42
- 229910052742 iron Inorganic materials 0.000 description 19
- 230000004907 flux Effects 0.000 description 12
- 238000010438 heat treatment Methods 0.000 description 9
- 230000006866 deterioration Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000011162 core material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 239000012768 molten material Substances 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000008119 colloidal silica Substances 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 229910001463 metal phosphate Inorganic materials 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 238000003487 electrochemical reaction Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052839 forsterite Inorganic materials 0.000 description 1
- 238000005098 hot rolling Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 150000002843 nonmetals Chemical class 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Description
電磁鋼板の表面上にさらに非金属酸化物層があってもよい。非金属酸化物層は、Mg2SiO4、Al2SiO4、またはMn2SiO4を含むことができる。さらに、非金属酸化物層上にさらに絶縁コーティング層が形成されていてもよい。溝は、線状であり、電磁鋼板の圧延方向に対して82°〜98°の角度で形成される。溝の深さ(D)は、電磁鋼板の厚さの3%〜8%であることができる。
また、本発明の一実施形態によれば、最終絶縁コーティング後、積鉄心変圧器の鉄心および熱処理を必要とする巻鉄心変圧器の鉄心として使用することができる。
ある部分が他の部分の「上に」あると言う場合、これは、まさに他の部分の上にあったり、その間に他の部分が伴っていてもよい。対照的にある部分が他の部分の「真上に」あると言及する場合、その間に他の部分は介在しない。
したがって、非金属酸化物層40が形成された鋼板は、非金属酸化物層40が形成されない鋼板に比べて、溝20の形成に必要なレーザ出力は20%以上減少して、鉄損を改善するのに効率が高い。
本発明の一実施形態による方向性電磁鋼板の磁区微細化方法は、方向性電磁鋼板を準備する段階と、方向性電磁鋼板の表面にレーザを照射して溝を形成する段階と、溝が形成された部分を400〜1500℃/sの冷却速度で急冷する段階とを含む。以下、各段階別に詳細に説明する。
方向性電磁鋼板を準備する段階は、冷間圧延した電磁鋼板を脱炭焼鈍または窒化焼鈍して、鋼板の表面に酸化層を形成する段階と、酸化層が形成された鋼板の表面に焼鈍分離剤を塗布し高温焼鈍して、鋼板の表面に非金属酸化物層を形成する段階とを含むことができる。
このように、凝固合金層の形成後、再結晶温度以上の熱処理条件で応力緩和焼鈍後の再結晶の形成により鉄損改善効果を2%以上確保すると同時に、磁束密度劣化率1.0%以下で確保できる。
〔実施例〕
冷間圧延した厚さ0.30mmの方向性電磁鋼板を脱炭焼鈍して酸化層を形成した後、MgOを含む焼鈍分離剤を塗布し、高温焼鈍実施して、フォルステライト被膜を形成した。その後、コロイダルシリカと金属リン酸塩とを含む絶縁コーティング液をコーティングして絶縁コーティング層を形成した。
溝の深さ、凝固合金層の厚さ、凝固合金層内の再結晶の平均粒径および応力焼鈍後の再結晶の平均粒径を、表1および表2にまとめた。
20:溝
30:凝固合金層
31:再結晶
32:応力焼鈍後の再結晶
40:非金属酸化物層
50:絶縁コーティング層
Claims (12)
- 電磁鋼板の表面に形成された溝と、
前記溝の下部に形成された凝固合金層とを含み、
前記凝固合金層の厚さは、0.6〜3.0μmであり、
前記凝固合金層は、平均粒径が8〜20μmの応力緩和焼鈍後の再結晶からなることを特徴とする方向性電磁鋼板。 - 前記電磁鋼板の表面上に形成された非金属酸化物層をさらに含むことを特徴とする請求項1に記載の方向性電磁鋼板。
- 前記非金属酸化物層は、Mg2SiO4、Al2SiO4、またはMn2SiO4を含むことを特徴とする請求項2に記載の方向性電磁鋼板。
- 前記非金属酸化物層上に形成された絶縁コーティング層をさらに含むことを特徴とする請求項2または3に記載の方向性電磁鋼板。
- 前記溝は、線状であり、電磁鋼板の圧延方向に対して82°〜98°の角度で形成されたことを特徴とする請求項1乃至請求項4の何れか一項に記載の方向性電磁鋼板。
- 前記溝の深さ(D)は、電磁鋼板の厚さの3%〜8%であることを特徴とする請求項1乃至請求項5の何れか一項に記載の方向性電磁鋼板。
- 方向性電磁鋼板を準備する段階と、
前記方向性電磁鋼板の表面にレーザを照射して溝を形成する段階と、
前記溝が形成された部分を400〜1500℃/sの冷却速度で急冷する段階とを含み
前記急冷する段階は、前記溝の形成と同時に急冷され、
前記レーザは、ガウス(Gaussian)エネルギー分布を有し、出力は1kW以上の連続波レーザであり、
製造された電磁鋼板の表面に形成された溝と、
前記溝の下部に形成された凝固合金層とを含み、
前記凝固合金層の厚さは、0.6〜3.0μmであり、
前記凝固合金層は、平均粒径が1〜7μmの再結晶からなることを特徴とする方向性電磁鋼板の磁区微細化方法。 - 方向性電磁鋼板を準備する段階と、
前記方向性電磁鋼板の表面にレーザを照射して溝を形成する段階と、
前記溝が形成された部分を400〜1500℃/sの冷却速度で急冷する段階と
応力緩和焼鈍する段階をさらに含み、
前記急冷する段階は、前記溝の形成と同時に急冷され、
前記レーザは、ガウス(Gaussian)エネルギー分布を有し、出力は1kW以上の連続波レーザであり、
製造された電磁鋼板の表面に形成された溝と、
前記溝の下部に形成された凝固合金層とを含み、
前記凝固合金層の厚さは、0.6〜3.0μmであり、
前記凝固合金層は、平均粒径が8〜20μmの応力緩和焼鈍後の再結晶からなることを特徴とする方向性電磁鋼板の磁区微細化方法。 - 前記レーザは、TEM00モードであり、ビームクオリティファクタ(factor)のM2が1.0〜1.1であり、出力は1〜10kWである連続波レーザであることを特徴とする請求項7または8に記載の方向性電磁鋼板の磁区微細化方法。
- 前記溝を形成する段階の後に、前記電磁鋼板の表面上に形成されたヒルアップ(hill−up)またはスパッタ(spatter)を除去する段階をさらに含むことを特徴とする請求項7乃至請求項9のいずれか一項に記載の方向性電磁鋼板の磁区微細化方法。
- 前記方向性電磁鋼板を準備する段階は、
冷間圧延した電磁鋼板を脱炭焼鈍または、脱炭焼鈍および窒化焼鈍して、鋼板の表面に酸化層を形成する段階と、
前記酸化層が形成された鋼板の表面に焼鈍分離剤を塗布し高温焼鈍して、鋼板の表面に非金属酸化物層を形成する段階とを含むことを特徴とする請求項7乃至請求項10のいずれか一項に記載の方向性電磁鋼板の磁区微細化方法。 - 前記非金属酸化物層を形成する段階の後、非金属酸化物層上に絶縁コーティング層を形成する段階をさらに含むことを特徴とする請求項11に記載の方向性電磁鋼板の磁区微細化方法。
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US11897056B2 (en) | 2018-10-30 | 2024-02-13 | Hamamatsu Photonics K.K. | Laser processing device and laser processing method |
KR102221606B1 (ko) * | 2018-11-30 | 2021-02-26 | 주식회사 포스코 | 방향성 전기강판 및 그의 제조 방법 |
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KR102276850B1 (ko) * | 2019-12-19 | 2021-07-12 | 주식회사 포스코 | 방향성 전기강판 및 그 자구미세화 방법 |
US12115596B2 (en) * | 2020-01-27 | 2024-10-15 | National Technology & Engineering Solutions Of Sandia, Llc | Methods for site-specific enhancement of soft magnetic alloys |
CN115917020A (zh) * | 2020-08-27 | 2023-04-04 | 杰富意钢铁株式会社 | 取向性电磁钢板的制造方法 |
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CN113564321B (zh) * | 2021-07-09 | 2024-04-12 | 首钢智新迁安电磁材料有限公司 | 一种取向硅钢的磁畴细化方法及应用 |
CN114231987B (zh) * | 2021-11-17 | 2023-09-15 | 首钢智新迁安电磁材料有限公司 | 一种去除耐热刻痕取向硅钢中熔覆物的化学试剂及其方法 |
Family Cites Families (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3393218B2 (ja) * | 1995-08-08 | 2003-04-07 | 新日本製鐵株式会社 | 低鉄損一方向性電磁鋼板の製造方法 |
JP4319715B2 (ja) | 1998-10-06 | 2009-08-26 | 新日本製鐵株式会社 | 磁気特性の優れた一方向性電磁鋼板とその製造方法 |
JP2002292484A (ja) | 2001-03-30 | 2002-10-08 | Nippon Steel Corp | レーザによる溝加工装置 |
JP4398666B2 (ja) | 2002-05-31 | 2010-01-13 | 新日本製鐵株式会社 | 磁気特性の優れた一方向性電磁鋼板およびその製造方法 |
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JP4846429B2 (ja) * | 2005-05-09 | 2011-12-28 | 新日本製鐵株式会社 | 低鉄損方向性電磁鋼板およびその製造方法 |
TWI305548B (en) | 2005-05-09 | 2009-01-21 | Nippon Steel Corp | Low core loss grain-oriented electrical steel sheet and method for producing the same |
RU2371487C1 (ru) | 2005-11-01 | 2009-10-27 | Ниппон Стил Корпорейшн | Способ и устройство для изготовления листа текстурированной электротехнической стали с прекрасными магнитными свойствами |
US8277574B2 (en) | 2007-12-12 | 2012-10-02 | Nippon Steel Corporation | Method for manufacturing grain-oriented electromagnetic steel sheet whose magnetic domains are controlled by laser beam irradiation |
JP4593678B2 (ja) | 2008-02-19 | 2010-12-08 | 新日本製鐵株式会社 | 低鉄損一方向性電磁鋼板及びその製造方法 |
JP4816716B2 (ja) * | 2008-12-05 | 2011-11-16 | パナソニック株式会社 | 誘導加熱調理器 |
KR101066584B1 (ko) | 2008-12-26 | 2011-09-22 | 주식회사 포스코 | 레이저를 이용한 방향성/무방향성 전기강판 제조방법 및 레이저를 이용한 전기강판 집합조직 제어 방법 |
KR101389647B1 (ko) | 2010-04-01 | 2014-04-30 | 신닛테츠스미킨 카부시키카이샤 | 방향성 전자기 강판 및 그 제조 방법 |
KR101303472B1 (ko) | 2010-09-10 | 2013-09-05 | 제이에프이 스틸 가부시키가이샤 | 방향성 전기 강판 및 그 제조 방법 |
CN101979676B (zh) | 2010-11-26 | 2012-02-08 | 武汉钢铁(集团)公司 | 通过激光刻痕改善取向硅钢磁性能的方法 |
KR101370634B1 (ko) * | 2011-12-29 | 2014-03-07 | 주식회사 포스코 | 전기강판 및 그 제조방법 |
KR101511706B1 (ko) | 2012-12-27 | 2015-04-14 | 주식회사 포스코 | 방향성 전기강판 및 방향성 전기강판의 자구미세화 방법 |
JP5888525B2 (ja) | 2013-02-28 | 2016-03-22 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
CN105451902B (zh) * | 2013-07-24 | 2018-08-24 | Posco公司 | 取向电工钢板及其制造方法 |
KR101565509B1 (ko) * | 2013-12-23 | 2015-11-03 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
KR101693516B1 (ko) * | 2014-12-24 | 2017-01-06 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
KR101719231B1 (ko) * | 2014-12-24 | 2017-04-04 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
WO2016139818A1 (ja) * | 2015-03-05 | 2016-09-09 | 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 |
JP6455593B2 (ja) * | 2015-04-20 | 2019-01-23 | 新日鐵住金株式会社 | 方向性電磁鋼板 |
PL3287537T3 (pl) | 2015-04-20 | 2020-06-01 | Nippon Steel Corporation | Blacha cienka ze zorientowanej stali elektrotechnicznej |
WO2016171124A1 (ja) | 2015-04-20 | 2016-10-27 | 新日鐵住金株式会社 | 方向性電磁鋼板 |
KR101659350B1 (ko) * | 2016-02-11 | 2016-09-23 | 주식회사 포스코 | 방향성 전기강판 및 그 제조방법 |
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