KR20140133681A - 무방향성 전기강판 및 그 제조방법 - Google Patents
무방향성 전기강판 및 그 제조방법 Download PDFInfo
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- KR20140133681A KR20140133681A KR1020130052708A KR20130052708A KR20140133681A KR 20140133681 A KR20140133681 A KR 20140133681A KR 1020130052708 A KR1020130052708 A KR 1020130052708A KR 20130052708 A KR20130052708 A KR 20130052708A KR 20140133681 A KR20140133681 A KR 20140133681A
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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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the working steps
- C21D8/1222—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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1216—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the working steps
- C21D8/1233—Cold rolling
-
- 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 of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment
- C21D8/12—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties
- C21D8/1244—Modifying the physical properties of ferrous metals or ferrous alloys by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties characterised by the heat treatment
- C21D8/1272—Final recrystallisation annealing
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- 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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
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- 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
- C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
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- 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
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
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- 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
- C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
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- 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
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C22C38/18—Ferrous alloys, e.g. steel alloys containing chromium
- C22C38/40—Ferrous alloys, e.g. steel alloys containing chromium with nickel
- C22C38/42—Ferrous alloys, e.g. steel alloys containing chromium with nickel with copper
-
- 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
- C22C38/60—Ferrous alloys, e.g. steel alloys containing lead, selenium, tellurium, or antimony, or more than 0.04% by weight of sulfur
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
| 강종 | C | Si | Mn | P | S | Al | N | Ti | Sn | Sb |
| A1 | 0.0024 | 2.3 | 0.78 | 0.054 | 0.0041 | 0.56 | 0.0024 | 0.0009 | 0.034 | 0.031 |
| A2 | 0.0016 | 2.6 | 0.95 | 0.079 | 0.0016 | 0.49 | 0.0019 | 0.0033 | 0 | 0.029 |
| A3 | 0.0032 | 3.1 | 0.46 | 0.034 | 0.0024 | 0.31 | 0.0034 | 0.0013 | 0 | 0.064 |
| A4 | 0.0037 | 2.5 | 0.64 | 0.027 | 0.0031 | 0.31 | 0.0027 | 0.0016 | 0.067 | 0.018 |
| A5 | 0.0003 | 3.3 | 0.79 | 0.034 | 0.0035 | 0.24 | 0.0022 | 0.0012 | 0.024 | 0.044 |
| A6 | 0.0029 | 3.1 | 0.75 | 0.061 | 0.0019 | 0.3 | 0.0012 | 0.0008 | 0.019 | 0.067 |
| A7 | 0.0034 | 3.4 | 0.57 | 0.095 | 0.0011 | 0.42 | 0.0016 | 0.0033 | 0.064 | 0 |
| A8 | 0.0012 | 2.1 | 0.49 | 0.024 | 0.0024 | 0.08 | 0.0027 | 0.0023 | 0.061 | 0.062 |
| A9 | 0.0016 | 2.8 | 0.83 | 0.035 | 0.0029 | 0.48 | 0.0024 | 0.002 | 0.047 | 0 |
| A10 | 0.0019 | 3 | 0.82 | 0.041 | 0.0033 | 0.21 | 0.0036 | 0.0018 | 0 | 0.038 |
| A11 | 0.0039 | 2.7 | 0.66 | 0.065 | 0.0027 | 0.29 | 0.0038 | 0.0014 | 0.031 | 0.022 |
| A12 | 0.0034 | 3.1 | 0.56 | 0.039 | 0.0016 | 0.25 | 0.0027 | 0.0023 | 0.028 | 0.023 |
| A13 | 0.0014 | 3.3 | 1.12 | 0.043 | 0.0028 | 0.46 | 0.0021 | 0.0024 | 0.081 | 0 |
| A14 | 0.002 | 2.8 | 0.61 | 0.077 | 0.0022 | 0.36 | 0.0013 | 0.0027 | 0.072 | 0.012 |
| 강종 | [Al]/[Mn] | V{100}/V{111} | V{110}/V{111} | 입자크기 (㎛) |
철손 W15 /50 |
자속밀도 B50 |
비고 |
| A1 | 0.72 | 0.71 | 0.44 | 115 | 2.81 | 1.68 | 비교예 |
| A2 | 0.52 | 0.93 | 0.48 | 119 | 2.67 | 1.67 | 비교예 |
| A3 | 0.67 | 0.84 | 0.37 | 134 | 2.46 | 1.66 | 비교예 |
| A4 | 0.48 | 1.36 | 0.61 | 127 | 2.12 | 1.73 | 발명예 |
| A5 | 0.30 | 1.11 | 0.7 | 108 | 1.93 | 1.71 | 발명예 |
| A6 | 0.40 | 1.24 | 0.72 | 111 | 1.96 | 1.71 | 발명예 |
| A7 | 0.74 | 0.88 | 0.38 | 126 | 2.39 | 1.65 | 비교예 |
| A8 | 0.16 | 0.97 | 0.48 | 123 | 2.75 | 1.67 | 비교예 |
| A9 | 0.58 | 0.92 | 0.41 | 137 | 2.47 | 1.66 | 비교예 |
| A10 | 0.26 | 1.34 | 0.82 | 117 | 1.99 | 1.71 | 발명예 |
| A11 | 0.44 | 1.16 | 0.67 | 126 | 2.09 | 1.72 | 발명예 |
| A12 | 0.45 | 1.27 | 0.61 | 130 | 2.03 | 1.73 | 발명예 |
| A13 | 0.41 | 1.11 | 0.58 | 116 | 1.89 | 1.7 | 발명예 |
| A14 | 0.59 | 1.05 | 0.57 | 116 | 2.07 | 1.72 | 발명예 |
| 강종 | C | Si | Mn | P | S | Al | N | Ti | Sn | Sb |
| B1 | 0.0019 | 2.6 | 0.68 | 0.046 | 0.0013 | 0.31 | 0.0013 | 0.0013 | 0.069 | 0.009 |
| B2 | 0.0018 | 3.1 | 0.94 | 0.031 | 0.0019 | 0.31 | 0.0021 | 0.001 | 0.054 | 0.016 |
| B3 | 0.0037 | 2.8 | 0.71 | 0.024 | 0.0036 | 0.23 | 0.0011 | 0.0008 | 0.027 | 0.013 |
| B4 | 0.0024 | 2.9 | 0.65 | 0.037 | 0.0024 | 0.19 | 0.0019 | 0.0018 | 0 | 0.028 |
| B5 | 0.0026 | 2.6 | 0.78 | 0.064 | 0.0026 | 0.24 | 0.0033 | 0.0022 | 0.028 | 0 |
| B6 | 0.0013 | 3.3 | 0.82 | 0.072 | 0.0015 | 0.39 | 0.0023 | 0.0026 | 0.015 | 0.043 |
| B7 | 0.0017 | 3.1 | 0.56 | 0.082 | 0.0021 | 0.22 | 0.0026 | 0.0016 | 0.035 | 0.017 |
| B8 | 0.0029 | 3.3 | 0.63 | 0.043 | 0.0022 | 0.17 | 0.0024 | 0.0012 | 0.042 | 0 |
| B9 | 0.0031 | 2.6 | 0.57 | 0.027 | 0.0037 | 0.15 | 0.0031 | 0.0014 | 0 | 0.071 |
| B10 | 0.0015 | 2.9 | 0.76 | 0.029 | 0.0035 | 0.3 | 0.0013 | 0.0021 | 0 | 0.033 |
| B11 | 0.0016 | 3.4 | 0.54 | 0.036 | 0.0031 | 0.22 | 0.0017 | 0.0022 | 0.023 | 0.023 |
| 강종 | [Al]/[Mn] | 열연판 소둔온도 (℃) |
냉연판 소둔온도 (℃) |
V{100} /V{111} |
V{110} /V{111} |
입자크기 (㎛) |
철손 W15 /50 |
자속 밀도 B50 |
비고 |
| B1 | 0.46 | 1050 | 1030 | 1.16 | 0.68 | 126 | 2.11 | 1.73 | 발명예 |
| B2 | 0.33 | 1170 | 1070 | 0.97 | 0.47 | 143 | 2.44 | 1.64 | 비교예 |
| B3 | 0.32 | 840 | 1000 | 0.88 | 0.42 | 102 | 2.53 | 1.65 | 비교예 |
| B4 | 0.29 | 1000 | 1080 | 1.09 | 0.62 | 148 | 2.08 | 1.72 | 발명예 |
| B5 | 0.31 | 1030 | 1110 | 0.96 | 0.48 | 172 | 2.68 | 1.65 | 비교예 |
| B6 | 0.48 | 830 | 840 | 0.83 | 0.41 | 47 | 2.42 | 1.64 | 비교예 |
| B7 | 0.39 | 950 | 990 | 1.04 | 0.54 | 111 | 1.99 | 1.72 | 발명예 |
| B8 | 0.27 | 1120 | 1100 | 1.17 | 0.59 | 156 | 1.91 | 1.7 | 발명예 |
| B9 | 0.26 | 1160 | 1130 | 0.94 | 0.44 | 186 | 2.66 | 1.65 | 비교예 |
| B10 | 0.39 | 920 | 1020 | 1.13 | 0.61 | 129 | 2.02 | 1.71 | 발명예 |
| B11 | 0.41 | 1080 | 960 | 1.22 | 0.63 | 95 | 1.86 | 1.7 | 발명예 |
Claims (10)
- 중량%로, C:0.005%이하, Si:1.5~3.5%, Al:0.1~0.5%, Mn:0.5~1.5%, P:0.02~0.2%, N:0.005%이하, S:0.001~0.005%, Ti:0.005%이하, 잔부는 Fe 및 기타 불가피하게 첨가되는 불순물로 구성되고, 상기 Mn, Al은 [Al]/[Mn]≤0.5의 조성식을 만족하는 무방향성 전기강판.
단, 상기 [Mn], [Al]은 각각 첨가되는 Mn, Al 의 중량%를 의미한다. - 제1항에 있어서,
Sn + Sb: 0.01~0.2중량%를 더 포함하는 무방향성 전기강판. - 제2항에 있어서,
Cu, Ni, Cr을 각각 0.05중량% 이하로 포함하고, Zr, Mo, V를 각각 0.01중량% 이하로 포함하는 무방향성 전기강판. - 제1항에 있어서,
상기 강판은 V{100}/V{111}≥1, V{110}/V{111}≥0.5를 만족하는 무방향성 전기강판.
단, 상기 V{100}, V{110}, V{111}는 각각 {100}, {110}, {111} 집합조직의 부피 분율을 의미한다. - 제4항에 있어서,
상기 강판의 결정립 크기는 50~180㎛인 무방향성 전기강판. - 중량%로, C:0.005%이하, Si:1.5~3.5%, Al:0.1~0.5%, Mn:0.5~1.5%, P:0.02~0.2%, N:0.005%이하, S:0.001~0.005%, Ti:0.005%이하, 잔부는 Fe 및 기타 불가피하게 첨가되는 불순물로 구성되고, 상기 Mn, Al은 [Al]/[Mn]≤0.5의 조성식을 만족하는 강 슬라브를 1200℃이하로 재가열하는 단계;
재가열된 슬라브를 열간압연하는 단계;
열간압연된 열연판을 열연판 소둔하거나 이를 생략하고 냉간압연하는 단계; 및
냉간압연된 냉연판을 850~1100℃의 온도에서 최종소둔하는 단계를 포함하는 무방향성 전기강판 제조방법. - 제6항에 있어서,
Sn + Sb: 0.01~0.2중량%를 더 포함하는 무방향성 전기강판 제조방법. - 제7항에 있어서,
Cu, Ni, Cr을 각각 0.05중량% 이하로 포함하고, Zr, Mo, V를 각각 0.01중량% 이하로 포함하는 무방향성 전기강판 제조방법. - 제6항에 있어서,
상기 열연판 소둔은 850~1150℃의 온도 범위에서 이루어지는 무방향성 전기강판 제조방법. - 제6항에 있어서,
상기 냉간압연은 1차 냉간압연 또는 중간소둔을 사이에 둔 2회 이상의 냉간압연인 무방향성 전기강판 제조방법.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020130052708A KR20140133681A (ko) | 2013-05-09 | 2013-05-09 | 무방향성 전기강판 및 그 제조방법 |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020130052708A KR20140133681A (ko) | 2013-05-09 | 2013-05-09 | 무방향성 전기강판 및 그 제조방법 |
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| Application Number | Title | Priority Date | Filing Date |
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| KR1020150149429A Division KR101634092B1 (ko) | 2015-10-27 | 2015-10-27 | 무방향성 전기강판 및 그 제조방법 |
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| KR20140133681A true KR20140133681A (ko) | 2014-11-20 |
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| KR1020130052708A Ceased KR20140133681A (ko) | 2013-05-09 | 2013-05-09 | 무방향성 전기강판 및 그 제조방법 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101659808B1 (ko) * | 2015-05-20 | 2016-09-26 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| CN108474078A (zh) * | 2015-12-23 | 2018-08-31 | Posco公司 | 无取向电工钢板及其制造方法 |
| WO2026071533A1 (ko) * | 2024-09-24 | 2026-04-02 | 현대제철 주식회사 | 무방향성 전기강판 및 무방향성 전기강판의 제조방법 |
| WO2026071521A1 (ko) * | 2024-09-24 | 2026-04-02 | 현대제철 주식회사 | 무방향성 전기강판 및 무방향성 전기강판의 제조방법 |
-
2013
- 2013-05-09 KR KR1020130052708A patent/KR20140133681A/ko not_active Ceased
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101659808B1 (ko) * | 2015-05-20 | 2016-09-26 | 주식회사 포스코 | 무방향성 전기강판 및 그 제조방법 |
| CN108474078A (zh) * | 2015-12-23 | 2018-08-31 | Posco公司 | 无取向电工钢板及其制造方法 |
| WO2026071533A1 (ko) * | 2024-09-24 | 2026-04-02 | 현대제철 주식회사 | 무방향성 전기강판 및 무방향성 전기강판의 제조방법 |
| WO2026071521A1 (ko) * | 2024-09-24 | 2026-04-02 | 현대제철 주식회사 | 무방향성 전기강판 및 무방향성 전기강판의 제조방법 |
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