JP7392849B2 - 方向性電磁鋼板の製造方法および電磁鋼板製造用圧延設備 - Google Patents
方向性電磁鋼板の製造方法および電磁鋼板製造用圧延設備 Download PDFInfo
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- 238000005096 rolling process Methods 0.000 title claims description 78
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 title claims description 27
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 229910000976 Electrical steel Inorganic materials 0.000 title claims description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 74
- 239000010959 steel Substances 0.000 claims description 74
- 238000000137 annealing Methods 0.000 claims description 67
- 238000005097 cold rolling Methods 0.000 claims description 47
- 238000010438 heat treatment Methods 0.000 claims description 44
- 238000000034 method Methods 0.000 claims description 27
- 238000001953 recrystallisation Methods 0.000 claims description 26
- 238000001816 cooling Methods 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- 239000000203 mixture Substances 0.000 claims description 12
- 238000005261 decarburization Methods 0.000 claims description 9
- 239000012535 impurity Substances 0.000 claims description 9
- 229910052797 bismuth Inorganic materials 0.000 claims description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims description 6
- 238000005098 hot rolling Methods 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000002347 injection Methods 0.000 claims description 3
- 239000007924 injection Substances 0.000 claims description 3
- 239000002826 coolant Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 58
- 229910052742 iron Inorganic materials 0.000 description 28
- 230000000694 effects Effects 0.000 description 14
- 239000011162 core material Substances 0.000 description 10
- 239000000047 product Substances 0.000 description 9
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- 230000032683 aging Effects 0.000 description 7
- 229910052799 carbon Inorganic materials 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 6
- 229910052717 sulfur Inorganic materials 0.000 description 6
- 239000008119 colloidal silica Substances 0.000 description 5
- 229910052748 manganese Inorganic materials 0.000 description 5
- 150000001247 metal acetylides Chemical class 0.000 description 5
- 230000009467 reduction Effects 0.000 description 5
- 229910052711 selenium Inorganic materials 0.000 description 5
- 229910052710 silicon Inorganic materials 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 4
- 229910052804 chromium Inorganic materials 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 4
- 229910052750 molybdenum Inorganic materials 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 229910052758 niobium Inorganic materials 0.000 description 4
- 229910052698 phosphorus Inorganic materials 0.000 description 4
- 230000002829 reductive effect Effects 0.000 description 4
- 229910052718 tin Inorganic materials 0.000 description 4
- 229910052787 antimony Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
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- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
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- 150000003346 selenoethers Chemical class 0.000 description 2
- 150000003568 thioethers Chemical class 0.000 description 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- -1 Sb: 0.005 to 0.50% Substances 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
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- 230000005415 magnetization Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
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- 238000005554 pickling Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Description
これらの知見をもとに更に検討を行い、本発明を完成させた。
[1]鋼素材に熱間圧延を施して熱延板とし、1回の冷間圧延又は中間焼鈍を挟む2回以上の冷間圧延を施して最終板厚を有する冷延板とし、次いで前記冷延板に脱炭焼鈍を施したのち、二次再結晶焼鈍を施す工程を含む、方向性電磁鋼板の製造方法であって、
最終の冷間圧延をタンデム圧延機で行い、該最終の冷間圧延は、前記熱延板を70℃以上200℃以下の温度域に加熱し、次いで60℃以下に冷却してから、前記タンデム圧延機の1パス目に導入して行う、方向性電磁鋼板の製造方法。
C:0.01~0.10%、
Si:2.0~4.5%、
Mn:0.01~0.5%、
Al:0.01~0.04%、
S:0.01~0.05%、
Se:0.01~0.05%及び
N:0.0050~0.012%
を含有し、残部がFe及び不可避的不純物の成分組成を有する、前記[1]記載の方向性電磁鋼板の製造方法。
C:0.01~0.10%、
Si:2.0~4.5%、
Mn:0.01~0.5%、
Al:0.0100%未満、
S:0.0070%以下、
Se:0.0070%以下及び
N:0.0050%以下
を含有し、残部がFe及び不可避的不純物の成分組成を有する、前記[1]記載の方向性電磁鋼板の製造方法。
Sb:0.005~0.50%、
Cu:0.01~1.50%、
P:0.005~0.50%、
Cr:0.01~1.50%、
Ni:0.005~1.50%、
Sn:0.01~0.50%、
Nb:0.0005~0.0100%、
Mo:0.01~0.50%、
B:0.0010~0.007%及び
Bi:0.0005~0.05%
からなる群より選ばれる1種又は2以上を含有する、前記[2]又は前記[3]に記載の方向性電磁鋼板の製造方法。
<鋼素材>
本発明の製造方法における鋼素材としてはスラブの他、ブルームやビレットを使用することができる。例えば、鋼スラブは、公知の製造方法によって製造されたものを用いることができる。製造方法としては、例えば製鋼-連続鋳造、造塊-分塊圧延法等が挙げられる。製鋼においては、転炉や電気炉等で得た溶鋼を真空脱ガス等の二次精錬を経て所望の成分組成とすることができる。
Cは、微細カーバイドを析出させることで、一次再結晶集合組織を改善するために必要な元素である。Cの含有量が0.10%超では、脱炭焼鈍による磁気時効の起こらない0.0050%以下に低減することが困難になる。一方、0.01%未満では、微細カーバイドの析出量が不足し、集合組織改善効果が不十分になる。そのため、C含有量は0.01~0.10%とすることが好ましい。より好ましくは、0.01~0.08%である。
Siは、鋼の電気抵抗を高め、鉄損を改善するのに有効な元素である。Siの含有量が4.5%超では、加工性が著しく低下するため、圧延して製造することが困難になる。一方、2.0%未満では、十分な鉄損低減効果が得難くなる。そのため、Si含有量は2.0~4.5%とすることが好ましい。より好ましくは、2.5~4.5%である。
Mnは、熱間加工性を改善するために必要な元素である。Mn含有量が0.5%超では、一次再結晶集合組織が劣化し、ゴス方位が高度に集積した二次再結晶粒を得るのが困難になる。一方、0.01%未満では、十分な熱延加工性を得るのが困難になる。そのため、Mn含有量は0.01~0.5%とすることが好ましい。より好ましくは、0.03~0.5%である。
なお、鋼素材の成分組成における上記した成分以外の残部は、Fe及び不可避的不純物である。
本発明の製造方法では、鋼スラブ等の鋼素材に、熱間圧延を施して熱延板とする。鋼素材は、熱間圧延の前に加熱することができる。その際の加熱温度は、熱間圧延性を確保する観点から1050℃程度以上とするのが好ましい。加熱温度の上限は特に限定されないが、1450℃超の温度は、鋼の融点に近く、鋼スラブ等の鋼素材の形状を保つのが困難であるため、1450℃以下とすることが好ましい。
それ以外の熱間圧延の条件は特に限定されず、公知の条件を適用することができる。
また、本発明の電磁鋼板製造用圧延設備は、電磁鋼板製造用のタンデム圧延機の第1スタンドの入側に、加熱装置及び冷却装置を有する。かかる設備によれば、上述した方向性電磁鋼板を安定して製造することができる。
C:0.037質量%、Si:3.4質量%及びMn:0.05質量%を含有し、S及びSeをそれぞれ31質量ppm、Nを50質量ppm、sol.Alを85質量ppm含有し、残部がFe及び不可避的不純物の成分組成からなる鋼スラブを、1210℃に加熱後、熱間圧延して板厚2.0mmの熱延板とした。
C:0.06質量%、Si:3.4質量%及びMn:0.06質量%を含有し、N:90質量ppm、sol.Alを250質量ppm、S及びSeをそれぞれ0.02質量%含有し、残部がFe及び不可避的不純物の成分組成からなる鋼スラブを、1400℃に加熱後、熱間圧延して板厚2.0mmの熱延板とした。
C:0.036質量%、Si:3.4質量%及びMn:0.06質量%を含有し、Nを50質量ppm、sol.Alを72質量ppm、S及びSeをそれぞれ31質量ppm含有し、その他の成分として、Sb、Cu、P、Cr、Ni、Sn、Nb、Mo、B、Biを、表4に示す範囲で含有し、残部がFe及び不可避的不純物の組成からなる鋼を溶製し、鋼スラブとし、1210℃に加熱後、熱間圧延して板厚2.0mmの熱延板とした。
2 冷却装置
3 鋼帯
4 圧延ロール(圧延スタンド)
5 温度制御装置
Claims (5)
- 鋼素材に熱間圧延を施して熱延板とし、1回の冷間圧延又は中間焼鈍を挟む2回以上の冷間圧延を施して最終板厚を有する冷延板とし、次いで前記冷延板に脱炭焼鈍を施したのち、二次再結晶焼鈍を施す工程を含む、方向性電磁鋼板の製造方法であって、
最終の冷間圧延をタンデム圧延機で行い、該最終の冷間圧延は、前記熱延板を70℃以上200℃以下の温度域に加熱し、次いで、前記加熱から30秒以内に、クーラント液の鋼板への噴射、冷却ロール及びオイルバスから選択される冷却方法により冷却を行い、60℃以下に冷却してから、前記タンデム圧延機の1パス目に導入して行う、方向性電磁鋼板の製造方法。 - 前記鋼素材は、質量%で、
C:0.01~0.10%、
Si:2.0~4.5%、
Mn:0.01~0.5%、
Al:0.01~0.04%、
S:0.01~0.05%、
Se:0.01~0.05%及び
N:0.0050~0.012%
を含有し、残部がFe及び不可避的不純物の成分組成を有する、請求項1に記載の方向性電磁鋼板の製造方法。 - 前記鋼素材は、質量%で、
C:0.01~0.10%、
Si:2.0~4.5%、
Mn:0.01~0.5%、
Al:0.0100%未満、
S:0.0070%以下、
Se:0.0070%以下及び
N:0.0050%以下
を含有し、残部がFe及び不可避的不純物の成分組成を有する、請求項1に記載の方向性電磁鋼板の製造方法。 - 前記鋼素材は、更に、質量%で、
Sb:0.005~0.50%、
Cu:0.01~1.50%、
P:0.005~0.50%、
Cr:0.01~1.50%、
Ni:0.005~1.50%、
Sn:0.01~0.50%、
Nb:0.0005~0.0100%、
Mo:0.01~0.50%、
B:0.0010~0.007%及び
Bi:0.0005~0.05%
からなる群より選ばれる1種又は2種以上を含有する、請求項2又は3に記載の方向性電磁鋼板の製造方法。 - 電磁鋼板製造用のタンデム圧延機の第1スタンドの入側に、加熱装置及び冷却装置を有する電磁鋼板製造用圧延設備により、前記最終の冷間圧延を行う、請求項1~4のいずれかに記載の方向性電磁鋼板の製造方法。
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Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990013673A1 (fr) | 1989-05-08 | 1990-11-15 | Kawasaki Steel Corporation | Procede de production de feuilles d'acier au silicium undirectionnel presentant d'excellentes caracteristiques magnetiques |
US20140311629A1 (en) | 2011-10-05 | 2014-10-23 | Centro Sviluppo Materiali S.P.A. | Process for the production of grain-oriented magnetic sheet with a high level of cold reduction |
JP2014208895A (ja) | 2013-03-27 | 2014-11-06 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE789262A (fr) | 1971-09-27 | 1973-01-15 | Nippon Steel Corp | Procede de formation d'un film isolant sur un feuillard d'acierau silicium oriente |
JPS5413846B2 (ja) | 1973-06-18 | 1979-06-02 | ||
JPS5652117B2 (ja) | 1973-11-17 | 1981-12-10 | ||
JPS5844744B2 (ja) | 1979-11-22 | 1983-10-05 | 川崎製鉄株式会社 | 方向性珪素鋼板にクロム酸化物を含まない張力付加型の上塗り絶縁被膜を形成する方法 |
JPS6115919A (ja) * | 1984-06-29 | 1986-01-24 | Kawasaki Steel Corp | けい素鋼板の冷間圧延方法 |
JPH01215925A (ja) | 1988-02-25 | 1989-08-29 | Nippon Steel Corp | 一方向性電磁鋼板の冷間圧延方法 |
JP3160281B2 (ja) * | 1990-09-10 | 2001-04-25 | 川崎製鉄株式会社 | 磁気特性の優れた方向性けい素鋼板の製造方法 |
JPH0533056A (ja) * | 1991-07-31 | 1993-02-09 | Kawasaki Steel Corp | 磁気特性の優れた方向性けい素鋼板の製造方法 |
JPH0615307A (ja) * | 1992-06-29 | 1994-01-25 | Kawasaki Steel Corp | 冷間圧延用ステンレス予備処理鋼帯の製造方法及び装置 |
JPH08253816A (ja) | 1995-03-15 | 1996-10-01 | Nippon Steel Corp | 超高磁束密度一方向性電磁鋼板の製造方法 |
JPH08269553A (ja) * | 1995-03-28 | 1996-10-15 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板の製造方法 |
JP3873309B2 (ja) | 1995-12-01 | 2007-01-24 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP4258149B2 (ja) * | 2001-12-28 | 2009-04-30 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP4568875B2 (ja) * | 2004-03-16 | 2010-10-27 | 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 |
JP5037796B2 (ja) * | 2005-04-15 | 2012-10-03 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP5287615B2 (ja) * | 2009-09-04 | 2013-09-11 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
JP5691231B2 (ja) * | 2010-04-16 | 2015-04-01 | Jfeスチール株式会社 | 冷間圧延方法 |
KR102503902B1 (ko) * | 2018-09-28 | 2023-02-27 | 제이에프이 스틸 가부시키가이샤 | 방향성 전기 강판의 제조 방법 및 냉간 압연 설비 |
JP7180401B2 (ja) * | 2019-01-21 | 2022-11-30 | 日本製鉄株式会社 | 圧延設備及び圧延方法 |
KR20240011759A (ko) * | 2021-06-30 | 2024-01-26 | 제이에프이 스틸 가부시키가이샤 | 방향성 전기 강판의 제조 방법 및 방향성 전기 강판 제조용 압연 설비 |
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Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1990013673A1 (fr) | 1989-05-08 | 1990-11-15 | Kawasaki Steel Corporation | Procede de production de feuilles d'acier au silicium undirectionnel presentant d'excellentes caracteristiques magnetiques |
US20140311629A1 (en) | 2011-10-05 | 2014-10-23 | Centro Sviluppo Materiali S.P.A. | Process for the production of grain-oriented magnetic sheet with a high level of cold reduction |
JP2014208895A (ja) | 2013-03-27 | 2014-11-06 | Jfeスチール株式会社 | 方向性電磁鋼板の製造方法 |
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