JP2022545889A - 無方向性電磁鋼板およびその製造方法 - Google Patents
無方向性電磁鋼板およびその製造方法 Download PDFInfo
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- 229910000565 Non-oriented electrical steel Inorganic materials 0.000 title claims abstract description 78
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 46
- 238000000137 annealing Methods 0.000 claims abstract description 31
- 238000005097 cold rolling Methods 0.000 claims abstract description 27
- 238000005098 hot rolling Methods 0.000 claims abstract description 13
- 229910052729 chemical element Inorganic materials 0.000 claims abstract description 9
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 8
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 8
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 229910052791 calcium Inorganic materials 0.000 claims abstract description 7
- 238000003723 Smelting Methods 0.000 claims abstract description 6
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 6
- 229910052718 tin Inorganic materials 0.000 claims abstract description 6
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 66
- 239000010959 steel Substances 0.000 claims description 66
- 238000010438 heat treatment Methods 0.000 claims description 42
- 238000002791 soaking Methods 0.000 claims description 26
- 239000010960 cold rolled steel Substances 0.000 claims description 16
- 230000006698 induction Effects 0.000 claims description 16
- 238000001953 recrystallisation Methods 0.000 claims description 12
- 229910052758 niobium Inorganic materials 0.000 claims description 10
- 229910052720 vanadium Inorganic materials 0.000 claims description 9
- 230000000977 initiatory effect Effects 0.000 claims description 4
- 238000000034 method Methods 0.000 abstract description 26
- 238000010586 diagram Methods 0.000 abstract description 7
- 238000009413 insulation Methods 0.000 abstract 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 28
- 239000011575 calcium Substances 0.000 description 24
- 230000000694 effects Effects 0.000 description 18
- 230000008569 process Effects 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 13
- 230000009467 reduction Effects 0.000 description 12
- 230000000052 comparative effect Effects 0.000 description 11
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 8
- 238000002425 crystallisation Methods 0.000 description 8
- 230000008025 crystallization Effects 0.000 description 8
- 238000001556 precipitation Methods 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 7
- 230000006378 damage Effects 0.000 description 5
- 230000002349 favourable effect Effects 0.000 description 5
- 230000006911 nucleation Effects 0.000 description 5
- 238000010899 nucleation Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 230000001627 detrimental effect Effects 0.000 description 4
- 230000005674 electromagnetic induction Effects 0.000 description 4
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 230000005389 magnetism Effects 0.000 description 3
- 230000008018 melting Effects 0.000 description 3
- 238000002844 melting Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 230000001737 promoting effect Effects 0.000 description 3
- 238000004151 rapid thermal annealing Methods 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 238000005096 rolling process Methods 0.000 description 3
- 206010011878 Deafness Diseases 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000009749 continuous casting Methods 0.000 description 2
- 238000005188 flotation Methods 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 229910052761 rare earth metal Inorganic materials 0.000 description 1
- 238000009738 saturating Methods 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
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- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/26—Methods of annealing
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- C21D6/00—Heat treatment of ferrous alloys
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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
- C21D8/1222—Hot rolling
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- 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
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- C21D8/1233—Cold rolling
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- 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
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- C21—METALLURGY OF IRON
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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
- C21D8/1244—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
- C21D8/1261—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 following hot rolling
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- 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
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- 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
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- 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
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- 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
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- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
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- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
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- C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
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Abstract
Description
0<C≦0.003%;Si:1.6~3.4%;Mn:0.1~1.2%;S≦0.003%;Al:0.1~3.0%;Sn:0.005~0.2%;Ca:0.0005~0.01%;O≦0.003%;N≦0.003%;残部はFeおよび他の不可避不純物である。
Nb/93+V/51+Ti/48≦C/12+N/14;および
Nb+V+Ti≦0.01%。
製錬および鋳造のステップ;
熱間圧延のステップ;
中間アニーリングのステップ:熱間圧延鋼板を50~2000℃/sの第1の速度でT保温温度Tholding Temp.まで急速加熱し、1~180sに渡って保温し、T保温温度Tholding Temp.=Tキュリー温度TCurie-Temp.+100k/vであり、vは第1の速度であり、kは100~450℃2/sの範囲である熱間圧延鋼板の再結晶化効果指数である;
冷間圧延のステップ;
連続アニーリングのステップ:冷間圧延鋼板を急速加熱開始温度T開始Tinitialから結晶化終了温度T結晶化終了Tcrystallization-endingまで第2の速度で加熱し、T開始Tinitialは第2の速度における加熱の開始温度であり、それから、さらに、ソーキングおよび保温のために、冷間圧延鋼板をソーキング温度TソーキングTsoakingまで加熱し、第2の速度は100~5000℃/sである;
完成した無方向性電磁鋼板を得るために絶縁コーティングを施すステップ、
を包含する。
本発明に従う薄ゲージ無方向性電磁鋼板は優良な磁気特性という特点を有し、鉄損P10/400は≦12W/kgかつ磁気誘導B50は≧1.68Tである。
例A8~A17の薄ゲージ無方向性電磁鋼板および比較例A1~A7の従来の鋼板が、次のステップを採用することによって製造される。
Claims (14)
- 0<C≦0.003%、Si:1.6~3.4%、Mn:0.1~1.2%、S≦0.003%、Al:0.1~3.0%、Sn:0.005~0.2%、Ca:0.0005~0.01%、O≦0.003%およびN≦0.003%の質量パーセンテージの化学元素を含み、残部はFeおよび不可避不純物である、無方向性電磁鋼板。
- さらに前記無方向性電磁鋼板の化学元素が33×O/16+S/32≦12×Ca/40を満たすことを特徴とする、請求項1に記載の無方向性電磁鋼板。
- さらに前記無方向性電磁鋼板がNb、V、またはTi元素の少なくとも1つを含有し、Nb、V、またはTi元素の質量パーセンテージが
Nb/93+V/51+Ti/48≦C/12+N/14および
Nb+V+Ti≦0.01%、
を満たすことを特徴とする、請求項1に記載の無方向性電磁鋼板。 - 前記無方向性電磁鋼板が0.1~0.3mmの厚さを有することを特徴とする、請求項1に記載の無方向性電磁鋼板。
- 前記無方向性電磁鋼板が15%よりも低くない割合の{100}面組織を有することを特徴とする、請求項1に記載の無方向性電磁鋼板。
- 前記無方向性電磁鋼板が≦12W/kgの鉄損P10/400および≧1.68Tの磁気誘導B50を有することを特徴とする、請求項1に記載の無方向性電磁鋼板。
- 製錬および鋳造のステップと、
熱間圧延のステップと、
熱間圧延鋼板を50~2000℃/sの第1の速度でT保温温度Tholding Tempまで急速加熱し、1~180sに渡って保温し;T保温温度Tholding Temp=Tキュリー温度TCurie-Temp+100k/vであり、vは℃/sの単位による前記第1の速度であり、kは、℃2/sの単位による100~450℃2/sの範囲である前記熱間圧延帯鋼板の再結晶化効果指数である中間アニーリングのステップと、
冷間圧延のステップと、
冷間圧延鋼板を急速加熱開始温度T開始Tinitialから結晶化終了温度T結晶化終了Tcrystallization-endingまで第2の速度で加熱し、それから、さらに、ソーキングおよび保温のために、前記冷間圧延鋼板をソーキング温度TソーキングTsoakingまで加熱し、前記第2の速度は100~5000℃/sである、連続アニーリングのステップと、
完成した無方向性電磁鋼板を得るために絶縁コーティングを施すステップと、
を含むことを特徴とする、請求項1~6のいずれか1項に記載の無方向性電磁鋼板の製造方法。 - 前記中間アニーリングステップにおいて、前記第1の速度が50~400℃/sであることを特徴とする、請求項7に記載の製造方法。
- 前記連続アニーリングステップにおいて、前記第2の速度が100~600℃/sであることを特徴とする、請求項7に記載の製造方法。
- 前記連続アニーリングステップにおいて、前記急速加熱開始温度T開始Tinitialが室温からキュリー温度までの温度であることを特徴とする、請求項7に記載の製造方法。
- 前記連続アニーリングステップにおいて、前記冷間圧延鋼板がさらに前記ソーキング温度TソーキングTsoakingまで1~30℃/sの速度で加熱されることを特徴とする、請求項7に記載の製造方法。
- TソーキングTsoaking=T結晶化終了Tcrystallization-ending+(50~130)℃であることを特徴とする、請求項7に記載の製造方法。
- 前記熱間圧延ステップに付した後の前記鋼板が0.8~2.0mmの厚さを有することを特徴とする、請求項7に記載の製造方法。
- 前記冷間圧延ステップにおいて、前記鋼板を完成品厚さに圧延するために、一次冷間圧延が採用されることを特徴とする、請求項7に記載の製造方法。
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CN201910791165.8A CN112430778A (zh) | 2019-08-26 | 2019-08-26 | 一种薄规格无取向电工钢板及其制造方法 |
CN201910791165.8 | 2019-08-26 | ||
PCT/CN2020/111403 WO2021037062A1 (zh) | 2019-08-26 | 2020-08-26 | 一种无取向电工钢板及其制造方法 |
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US (1) | US20230416883A1 (ja) |
EP (1) | EP4001448A4 (ja) |
JP (1) | JP2022545889A (ja) |
CN (1) | CN112430778A (ja) |
BR (1) | BR112022003356A2 (ja) |
CA (1) | CA3151686A1 (ja) |
MX (1) | MX2022001808A (ja) |
WO (1) | WO2021037062A1 (ja) |
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MX2022001808A (es) | 2022-03-11 |
CA3151686A1 (en) | 2021-03-04 |
CN112430778A (zh) | 2021-03-02 |
WO2021037062A1 (zh) | 2021-03-04 |
US20230416883A1 (en) | 2023-12-28 |
EP4001448A1 (en) | 2022-05-25 |
BR112022003356A2 (pt) | 2022-05-17 |
EP4001448A4 (en) | 2022-07-27 |
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