JP6208855B2 - 配向性高ケイ素鋼の製造方法 - Google Patents
配向性高ケイ素鋼の製造方法 Download PDFInfo
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/02—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips
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- C21D8/0447—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of plates or strips to produce plates or strips for deep-drawing characterised by the heat treatment
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
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- C21D8/1205—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular fabrication or treatment of ingot or slab
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- 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
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- 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
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- 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
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- 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
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- 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
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- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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Description
2)二次再結晶の発生を満足するための必須条件は、帯鋼の一次再結晶における結晶粒の成長が強く抑制されることであり、高Si鋼が冷間圧延により変形された後、粒界移動の速度の向上に抑制効果がもっと強い抑制剤が必要である。
3)抑制剤は化合物(例えばS化物及びN化物等)でもよく、単体(例えばCu、Sn、B等)でもよい。前者は高温での固溶及び相変態・析出により制御する必要があるが鋳片の高温過熱により結晶粒が粗大化しすぎる場合もある。しかし、高ケイ素鋼はフェライト単相であるので、N化物の微細化析出を制御する相変態窓口がない。一方、単体化合物は一般的に補助抑制剤として使用されており、単独使用による抑制力が不十分で、また基体を固溶強化しやすく、塑性に影響を与える。
Claims (3)
- (1)質量%で、C:0.001〜0.003%、Si:5.0〜6.6%、Mn:0.2〜0.3%、Al:0.05〜0.12%、V:0.01〜0.04%、Nb:0.03〜0.06%、S:0.02〜0.03%、N:0.009〜0.020%、O≦0.0020%を含有し、残部はFe及び不可避的不純物からなる溶鋼を製錬する工程と、
(2)溶鋼をゲートから、予熱温度が1200〜1250℃で、過熱度が20〜50℃に制御されたタンディッシュに注入し、溶鋼がタンディッシュを通過してストリップ鋳造機に入り、厚みが1.8〜3.0mmである鋳造ストリップを形成するストリップ鋳造工程と、
(3)鋳造ストリップをローラーから出した後、不活性雰囲気の条件下で、50〜100℃/sの速度で1000〜1050℃まで冷却し、その後、圧延開始温度を1000〜1050℃、圧延仕上げ温度を900〜980℃、圧下量を10〜15%として熱間圧延を行い、熱間圧延鋳造ストリップを製造する工程と、
(4)熱間圧延鋳造ストリップを20〜30℃/sの速度で550〜600℃まで冷却し巻き取り、その後、窒素ガス雰囲気の条件下で、圧延開始温度を760±5℃、圧延仕上げ温度を550〜600℃、総圧下量を70〜80%として温間圧延を行い、温間圧延ストリップを製造する工程と、
(5)温間圧延ストリップを酸洗してスケールを除去し、その後総圧下量が60〜80%となるように100〜200℃で多パスの冷間圧延を行い、連続する2パスの間において280〜320℃で240〜300秒保持する時効処理を、冷間圧延の過程において2〜3回行い、冷間圧延ストリップを得る工程と、
(6)前記冷間圧延ストリップを、露点が30〜60℃の窒素水素混合雰囲気下において、850±10℃で120〜180秒保持する再結晶焼鈍を行い、その後、MgOコーティングを塗布し、最後に巻き取り、コーティング冷間圧延ストリップを得る工程と、
(7)前記コーティング冷間圧延ストリップを400±10℃の環状炉内に置き、水素ガスを流通させる条件下で、まず30〜40℃/hの速度で1000±10℃まで昇温し、そして10〜20℃/hの速度で1130±10℃まで昇温し、さらに30〜40℃/hの速度で1220〜1240℃まで昇温し、20〜30h保温して純化焼鈍を行う工程と、
(8)純化焼鈍されたコーティング冷間圧延ストリップから酸化スケールを除去することで素地調整し、さらに絶縁層を塗布し、その後800±10℃で焼鈍を行った後、引張して平坦化し、最後に650℃以下まで空冷し巻き取り、方向性高ケイ素鋼を得る工程と、
を含むことを特徴とする方向性高ケイ素鋼の製造方法。 - 前記方向性高ケイ素鋼の厚みは0.10〜0.25mmであることを特徴とする請求項1に記載の方向性高ケイ素鋼の製造方法。
- 前記方向性高ケイ素鋼の磁気特性は、P10/50が0.18〜0.62W/kg、P10/400が6.75〜9.5W/kg、磁気誘導B8が1.74〜1.81T、B8/BS=0.961〜0.978であることを特徴とする請求項1に記載の方向性高ケイ素鋼の製造方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410505834.8A CN104372238B (zh) | 2014-09-28 | 2014-09-28 | 一种取向高硅钢的制备方法 |
| CN201410505834.8 | 2014-09-28 | ||
| PCT/CN2014/088887 WO2016045157A1 (zh) | 2014-09-28 | 2014-10-20 | 一种取向高硅钢的制备方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2017501296A JP2017501296A (ja) | 2017-01-12 |
| JP6208855B2 true JP6208855B2 (ja) | 2017-10-04 |
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| CN119525447B (zh) * | 2024-12-09 | 2025-09-30 | 中铝铝箔(陇西)有限公司 | 一种高延伸铸轧3003铝合金板带的制备方法 |
| CN120060725B (zh) * | 2025-04-28 | 2025-07-25 | 太原科技大学 | 一种双取向硅钢及其制备方法 |
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| JPH0665724B2 (ja) * | 1986-04-14 | 1994-08-24 | 新日本製鐵株式会社 | 磁気特性の優れた電磁鋼板の製造方法 |
| JPS6369917A (ja) * | 1986-09-09 | 1988-03-30 | Sumitomo Metal Ind Ltd | 一方向性電磁鋼板の製造方法 |
| JPS6389622A (ja) | 1986-10-03 | 1988-04-20 | Sumitomo Metal Ind Ltd | 一方向性高Si珪素鋼板の製造方法 |
| JPH07115041B2 (ja) * | 1987-03-11 | 1995-12-13 | 日本鋼管株式会社 | 無方向性高Si鋼板の製造方法 |
| CA2006292C (en) * | 1988-12-22 | 1997-09-09 | Yoshiyuki Ushigami | Very thin electrical steel strip having low core loss and high magnetic flux density and a process for producing the same |
| JPH0459929A (ja) * | 1990-06-29 | 1992-02-26 | Nippon Steel Corp | {110}<001>方位集積度が高く鉄損の低い極薄電磁鋼帯およびその製造方法 |
| JP2779696B2 (ja) | 1990-07-20 | 1998-07-23 | 新日本製鐵株式会社 | 方向性高珪素鋼板の製造方法 |
| JPH086136B2 (ja) * | 1990-12-26 | 1996-01-24 | 新日本製鐵株式会社 | 方向性高珪素鋼板の製造法 |
| JPH05295447A (ja) | 1992-04-23 | 1993-11-09 | Nippon Steel Corp | 方向性電磁鋼板の短時間仕上焼鈍法 |
| JP3342777B2 (ja) * | 1994-08-16 | 2002-11-11 | 株式会社レオテック | けい素鋼の鋳造方法 |
| JP2000256810A (ja) * | 1999-03-11 | 2000-09-19 | Kawasaki Steel Corp | 低磁場高周波での磁気特性及び打ち抜き加工性に優れる方向性けい素鋼板及びその製造方法 |
| CN1560309A (zh) | 2004-02-19 | 2005-01-05 | 北京科技大学 | 一种逐步增塑法制备铁硅系基有序合金薄板的技术 |
| JP4214937B2 (ja) * | 2004-03-26 | 2009-01-28 | Jfeスチール株式会社 | 磁気特性に優れた方向性電磁鋼板の製造方法 |
| JPWO2007144964A1 (ja) * | 2006-06-16 | 2009-10-29 | 新日本製鐵株式会社 | 高強度電磁鋼板およびその製造方法 |
| CN101545072B (zh) * | 2008-03-25 | 2012-07-04 | 宝山钢铁股份有限公司 | 一种高电磁性能取向硅钢的生产方法 |
| CN102041368A (zh) * | 2011-01-16 | 2011-05-04 | 首钢总公司 | 一种表面质量优异的取向电工钢生产方法 |
| JP5672273B2 (ja) * | 2012-07-26 | 2015-02-18 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
| JP5831435B2 (ja) * | 2012-12-11 | 2015-12-09 | Jfeスチール株式会社 | 磁気特性に優れた方向性電磁鋼板の製造方法 |
| CN103540846B (zh) * | 2013-08-27 | 2016-01-20 | 国家电网公司 | 一种薄规格、超低铁损、低噪声高磁感取向硅钢片及其制备方法 |
| CN103551532B (zh) | 2013-10-30 | 2017-01-11 | 宝山钢铁股份有限公司 | 一种薄带连铸铸机及其作业方法 |
| CN103725995B (zh) * | 2013-12-27 | 2016-01-20 | 东北大学 | 一种取向高硅电工钢的制备方法 |
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- 2014-10-20 EP EP14902512.4A patent/EP3118336B1/en not_active Not-in-force
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| EP3118336A4 (en) | 2017-07-12 |
| WO2016045157A1 (zh) | 2016-03-31 |
| US10032548B2 (en) | 2018-07-24 |
| CN104372238A (zh) | 2015-02-25 |
| CN104372238B (zh) | 2016-05-11 |
| EP3118336B1 (en) | 2018-03-28 |
| US20160247613A1 (en) | 2016-08-25 |
| EP3118336A1 (en) | 2017-01-18 |
| JP2017501296A (ja) | 2017-01-12 |
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