KR100293140B1 - 일방향성 전자강판 및 그 제조방법 - Google Patents
일방향성 전자강판 및 그 제조방법 Download PDFInfo
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- KR100293140B1 KR100293140B1 KR1019980709427A KR19980709427A KR100293140B1 KR 100293140 B1 KR100293140 B1 KR 100293140B1 KR 1019980709427 A KR1019980709427 A KR 1019980709427A KR 19980709427 A KR19980709427 A KR 19980709427A KR 100293140 B1 KR100293140 B1 KR 100293140B1
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 47
- 238000000137 annealing Methods 0.000 claims abstract description 123
- 238000005097 cold rolling Methods 0.000 claims abstract description 66
- 229910000976 Electrical steel Inorganic materials 0.000 claims abstract description 46
- 238000005261 decarburization Methods 0.000 claims abstract description 37
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 31
- 239000010959 steel Substances 0.000 claims abstract description 31
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 28
- 238000000576 coating method Methods 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 26
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 25
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 23
- 238000005096 rolling process Methods 0.000 claims abstract description 22
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 20
- 229910052711 selenium Inorganic materials 0.000 claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 5
- 239000007858 starting material Substances 0.000 claims abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 88
- 238000010438 heat treatment Methods 0.000 claims description 49
- 229910052742 iron Inorganic materials 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 35
- 239000013078 crystal Substances 0.000 claims description 16
- 239000002253 acid Substances 0.000 claims description 15
- 229910052787 antimony Inorganic materials 0.000 claims description 9
- 229910052750 molybdenum Inorganic materials 0.000 claims description 8
- 229910052718 tin Inorganic materials 0.000 claims description 8
- 229910052796 boron Inorganic materials 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 229910001224 Grain-oriented electrical steel Inorganic materials 0.000 claims 2
- 239000000047 product Substances 0.000 description 68
- 238000001953 recrystallisation Methods 0.000 description 30
- 239000003112 inhibitor Substances 0.000 description 17
- 230000006698 induction Effects 0.000 description 13
- 238000009413 insulation Methods 0.000 description 13
- 239000012467 final product Substances 0.000 description 12
- 239000007789 gas Substances 0.000 description 11
- 230000007547 defect Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 9
- 230000001747 exhibiting effect Effects 0.000 description 8
- 230000004907 flux Effects 0.000 description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 6
- 238000005098 hot rolling Methods 0.000 description 5
- 238000007796 conventional method Methods 0.000 description 4
- 238000010304 firing Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 3
- 239000012298 atmosphere Substances 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 230000005284 excitation Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000002244 precipitate Substances 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 229910000519 Ferrosilicon Inorganic materials 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012299 nitrogen atmosphere Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 239000006104 solid solution Substances 0.000 description 1
- 230000007928 solubilization Effects 0.000 description 1
- 238000005063 solubilization Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- C21D8/1216—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
- C21D8/1233—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
- C21D6/00—Heat treatment of ferrous alloys
- C21D6/008—Heat treatment of ferrous alloys containing Si
-
- 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
-
- 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
- C21D8/1216—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
-
- 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
- C21D8/1255—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 with diffusion of elements, e.g. decarburising, nitriding
-
- 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
- C21D8/1261—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
-
- 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
-
- 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
- C21D8/1277—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
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
Abstract
Description
Claims (11)
- 중량 퍼센트로, 2.5 내지 4.0%의 Si, 0.02 내지 0.20%의 Mn 과 0.005 내지 0.050%의 산불가용성 Al을 함유하고, 판 두께 0.20 내지 0.55mm에 있어서, 1.5 내지 5.5mm의 평균 결정입경과, 아래에 주어진 식에 의해 나타낸 철손치 W17/50및 1.80 ≤ B8(T) ≤ 1.88를 만족하는 B8(T) 값을 가지는 것을 특징으로 하는 일방향성 전자강판.0.5884e1.9154t≤ W17/50(W/kg) ≤ 0.7558e1.7378t[t: 판 두께(mm)]
- 중량 퍼센트로, 1.5 내지 2.5% 미만의 Si, 0.02 내지 0.20%의 Mn 과 0.005 내지 0.050%의 산불가용성 Al을 함유하고, 판 두께 0.20 내지 0.55mm에 있어서, 1.5 내지 5.5mm의 평균 결정입경과, 아래에 주어진 식에 의해 나타낸 철손치 W17/50및 1.88 ≤ B8(T) ≤ 1.95의 관계를 만족하는 B8(T) 값을 가지는 것을 특징으로 하는 일방향성 전자강판.0.5884e1.9154t≤ W17/50(W/kg) ≤ 0.7558e1.7378t[t: 판 두께(mm)]
- 제1항 또는 제2항에 있어서, Sb, Sn, Cu, Mo 및 B로 구성된 군으로부터 선택된 1 종 이상을 각각 0.003 내지 0.3% 추가적으로 함유하는 것을 특징으로 하는 일방향성 전자강판.
- 중량 퍼센트로, 0.02 내지 0.15%의 C, 2.5 내지 4.0%의 Si, 0.02 내지 0.20%의 Mn, 0.015 내지 0.065%의 Sol. Al, 0.0030 내지 0.0150%의 N, 0.005 내지 0.040%의 S 및 Se중 1종 이상의 합계, 나머지는 실질적으로 Fe인 조성의 슬라브를 슬라브 가열한 후 열연한 코일, 또는 상기 조성의 용강으로부터 직접 주조된 코일을 출발재로 하여, 열연판 소둔, 냉연, 탈탄 소둔, 최종 마무리 소둔 및 최종 코팅을 실시하는 공정에 의하여 일방향성 전자강판을 제조하는 방법에 있어서, 열연판 소둔을 900 내지 1100℃로 하여, 판 두께가 0.20 내지 0.55mm, 평균 결정립경이 1.5 내지 5.5mm이고, W17/50철손치가 아래의 식으로 나타내어지며, B8(T)가 1.80 ≤ B8(T) ≤ 1.88의 관계를 만족하는 제품을 얻는 것을 특징으로 하는 일방향성 전자강판의 제조방법.0.5884e1.9154t≤ W17/50(W/kg) ≤ 0.7558e1.7378t[t: 판 두께(mm)]
- 중량 퍼센트로, 0.02 내지 0.15%의 C, 1.5 내지 2.5% 미만의 Si, 0.02 내지 0.20%의 Mn, 0.015 내지 0.065%의 Sol. Al, 0.0030 내지 0.0150%의 N, 0.005 내지 0.040%의 S 및 Se중 1종 이상의 합계, 나머지는 실질적으로 Fe인 조성의 슬라브를 슬라브 가열한 후 열연한 코일, 또는 상기 조성의 용강으로부터 직접 주조된 코일을 출발재로 하여, 열연판 소둔, 냉연, 탈탄 소둔, 최종 마무리 소둔 및 최종 코팅을 실시하는 공정에 의하여 일방향성 전자강판을 제조하는 방법에 있어서, 열연판 소둔을 900 내지 1100℃로 하여, 판 두께가 0.20 내지 0.55mm, 평균 결정립경이 1.5 내지 5.5mm이고, W17/50철손치가 아래의 식으로 나타내어지며, B8(T)가 1.88 ≤ B8(T) ≤ 1.95의 관계를 만족하는 제품을 얻는 것을 특징으로 하는 일방향성 전자강판의 제조방법.0.5884e1.9154t≤ W17/50(W/kg) ≤ 0.7558e1.7378t[t: 판 두께(mm)]
- 제4항 또는 제5항에 있어서, Sb, Sn, Cu, Mo 및 B로 구성된 군으로부터 선택된 1 종 이상을 각각 0.003 내지 0.3% 추가로 함유하는 것을 특징으로 하는 일방향성 전자강판의 제조방법.
- 제4항 내지 제6항 중 어느 한 항에 있어서, 상기 냉연을 65 내지 95%의 냉연율로 시행하는 것을 특징으로 하는 일방향성 전자강판의 제조방법.
- 제4항 내지 제6항 중 어느 한 항에 있어서, 상기 냉연을 80 내지 86%의 냉연율로 시행하는 것을 특징으로 하는 일방향성 전자강판의 제조방법.
- 제7항 또는 제8항에 있어서, 상기 냉연을 복수의 스탠드(stand)를 가지는 탠덤 압연기 또는 젠디미어 압연기에서 행하는 것을 특징으로 하는 일방향성 전자강판의 제조 방법.
- 제4항 내지 제9항 중 어느 한 항에 있어서, 슬라브의 1200℃ 이상의 고온 영역에서의 가열을 5℃/min 이상의 승온 속도로 행하여 1320 내지 1490℃로 가열하는 것을 특징으로 하는 일방향성 전자강판의 제조방법.
- 제10항에 있어서, 1320 내지 1490℃의 온도로 가열하는 상기 슬라브는 50% 이하의 압하율로 열간 변형을 가한 슬라브인 것을 특징으로 하는 일방향성 전자강판의 제조방법.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60215/1998 | 1998-03-11 | ||
JP60216/1998 | 1998-03-11 | ||
JP6021698 | 1998-03-11 | ||
JP6021598 | 1998-03-11 | ||
PCT/JP1998/001718 WO1999046416A1 (fr) | 1998-03-11 | 1998-04-15 | Feuille d'acier magnetique unidirectionnel et procede de fabrication associe |
Publications (2)
Publication Number | Publication Date |
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KR20000065221A KR20000065221A (ko) | 2000-11-06 |
KR100293140B1 true KR100293140B1 (ko) | 2001-06-15 |
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Application Number | Title | Priority Date | Filing Date |
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KR1019980709427A KR100293140B1 (ko) | 1998-03-11 | 1998-04-15 | 일방향성 전자강판 및 그 제조방법 |
Country Status (6)
Country | Link |
---|---|
US (1) | US6159309A (ko) |
EP (2) | EP1728885B1 (ko) |
KR (1) | KR100293140B1 (ko) |
CN (2) | CN1143004C (ko) |
DE (1) | DE69840979D1 (ko) |
WO (1) | WO1999046416A1 (ko) |
Families Citing this family (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19745445C1 (de) * | 1997-10-15 | 1999-07-08 | Thyssenkrupp Stahl Ag | Verfahren zur Herstellung von kornorientiertem Elektroblech mit geringem Ummagnetisierungsverlust und hoher Polarisation |
US6322635B1 (en) * | 1998-10-27 | 2001-11-27 | Kawasaki Steel Corporation | Electromagnetic steel sheet and process for producing the same |
IT1316029B1 (it) * | 2000-12-18 | 2003-03-26 | Acciai Speciali Terni Spa | Processo per la produzione di acciaio magnetico a grano orientato. |
KR100683471B1 (ko) | 2004-08-04 | 2007-02-20 | 제이에프이 스틸 가부시키가이샤 | 무방향성 전자 강판의 제조방법, 및 무방향성 전자강판용의 소재 열연 강판 |
US7329708B2 (en) * | 2004-08-18 | 2008-02-12 | General Electric Company | Functionalized poly(arylene ether) composition and method |
CN101353760B (zh) * | 2007-07-23 | 2010-10-13 | 宝山钢铁股份有限公司 | 一种高磁感取向硅钢及其生产方法 |
CN103695619B (zh) | 2012-09-27 | 2016-02-24 | 宝山钢铁股份有限公司 | 一种高磁感普通取向硅钢的制造方法 |
WO2019160087A1 (ja) * | 2018-02-16 | 2019-08-22 | 日本製鉄株式会社 | 無方向性電磁鋼板、及び無方向性電磁鋼板の製造方法 |
CN113789471B (zh) * | 2021-08-19 | 2022-05-20 | 鞍钢股份有限公司 | 一种冷连轧法生产无取向高硅钢的方法 |
CN115449741B (zh) * | 2022-09-20 | 2023-11-24 | 武汉钢铁有限公司 | 一种基于薄板坯连铸连轧生产高磁感取向硅钢及方法 |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0673509A (ja) * | 1992-08-17 | 1994-03-15 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板及びその製造方法 |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
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CA920036A (en) * | 1968-04-02 | 1973-01-30 | Sakakura Akira | Process for producing single-oriented magnetic steel sheets having a very high magnetic induction |
JPS5920745B2 (ja) * | 1980-08-27 | 1984-05-15 | 川崎製鉄株式会社 | 鉄損の極めて低い一方向性珪素鋼板とその製造方法 |
US4997493A (en) * | 1987-11-27 | 1991-03-05 | Nippon Steel Corporation | Process for production of double-oriented electrical steel sheet having high flux density |
DE69032461T2 (de) * | 1989-04-14 | 1998-12-03 | Nippon Steel Corp., Tokio/Tokyo | Verfahren zur Herstellung von kornorientierten Elektrostahlblechen mit hervorragenden magnetischen Eigenschaften |
EP0607440B1 (en) * | 1992-05-08 | 2000-05-31 | Nippon Steel Corporation | Process for producing a grain-orientated electical steel sheet having mirror surface |
JPH06179917A (ja) * | 1992-12-15 | 1994-06-28 | Nippon Steel Corp | 高磁束密度一方向性電磁鋼板の製造方法 |
DE69420058T2 (de) * | 1993-01-12 | 2000-04-27 | Nippon Steel Corp., Tokio/Tokyo | Kornorientiertes Elektroblech mit sehr geringen Eisenverlusten und Herstellungsverfahren |
JPH07252532A (ja) * | 1994-03-16 | 1995-10-03 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板の製造方法 |
JPH07310124A (ja) * | 1994-05-16 | 1995-11-28 | Nippon Steel Corp | 磁気特性、被膜特性の優れた厚い板厚の一方向性電磁鋼板の製造方法 |
JP3081118B2 (ja) * | 1994-11-02 | 2000-08-28 | 新日本製鐵株式会社 | 極めて低い鉄損を有する一方向性電磁鋼板 |
DE69513811T3 (de) * | 1995-07-14 | 2005-09-22 | Nippon Steel Corp. | Verfahren zum herstellen eines kornorientierten elektrostahlblechs mit einer spiegeloberflache und mit geringem kernverlust |
US5855694A (en) * | 1996-08-08 | 1999-01-05 | Kawasaki Steel Corporation | Method for producing grain-oriented silicon steel sheet |
IT1284268B1 (it) * | 1996-08-30 | 1998-05-14 | Acciai Speciali Terni Spa | Procedimento per la produzione di lamierino magnetico a grano orientato, con elevate caratteristiche magnetiche, a partire da |
KR100440994B1 (ko) * | 1996-10-21 | 2004-10-21 | 제이에프이 스틸 가부시키가이샤 | 방향성전자강판및그제조방법 |
-
1998
- 1998-04-15 DE DE69840979T patent/DE69840979D1/de not_active Expired - Lifetime
- 1998-04-15 EP EP06018256A patent/EP1728885B1/en not_active Expired - Lifetime
- 1998-04-15 WO PCT/JP1998/001718 patent/WO1999046416A1/ja active IP Right Grant
- 1998-04-15 EP EP98914027A patent/EP1006207B1/en not_active Expired - Lifetime
- 1998-04-15 KR KR1019980709427A patent/KR100293140B1/ko not_active IP Right Cessation
- 1998-04-15 CN CNB011172150A patent/CN1143004C/zh not_active Expired - Lifetime
- 1998-04-15 CN CN98800336A patent/CN1078624C/zh not_active Expired - Lifetime
- 1998-04-15 US US09/180,125 patent/US6159309A/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0673509A (ja) * | 1992-08-17 | 1994-03-15 | Nippon Steel Corp | 磁気特性の優れた一方向性電磁鋼板及びその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US6159309A (en) | 2000-12-12 |
EP1006207B1 (en) | 2009-07-15 |
DE69840979D1 (de) | 2009-08-27 |
EP1728885A1 (en) | 2006-12-06 |
EP1728885B1 (en) | 2012-06-13 |
CN1143004C (zh) | 2004-03-24 |
EP1006207A4 (en) | 2005-01-05 |
CN1321787A (zh) | 2001-11-14 |
CN1251621A (zh) | 2000-04-26 |
KR20000065221A (ko) | 2000-11-06 |
CN1078624C (zh) | 2002-01-30 |
EP1006207A1 (en) | 2000-06-07 |
WO1999046416A1 (fr) | 1999-09-16 |
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