KR100831756B1 - 그레인 방향성 전기 강 스트립의 제조시 억제제 분포를조절하는 방법 - Google Patents
그레인 방향성 전기 강 스트립의 제조시 억제제 분포를조절하는 방법 Download PDFInfo
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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
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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
- C21D8/1216—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
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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
- C21D8/1205—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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- 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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- 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
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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
-
- 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
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- Crystallography & Structural Chemistry (AREA)
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- Manufacturing & Machinery (AREA)
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- Manufacturing Of Steel Electrode Plates (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
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Abstract
Description
예비 동일화 영역 T℃ | 동일화 영역 T℃ | ||
조건 A | 1200 | 1230 | 비교예 |
조건 B | 1150 | 1180 | 비교예 |
조건 C | 1330 | 1230 | 본 발명 |
조건 D | 1330 | 1180 | 본 발명 |
탈탄온도. 830℃ | 탈탄온도. 850℃ | 탈탄온도. 870℃ | |
조건 A | 1.83T | 1.89T | 1.87T |
조건 B | 1.89T | 1.89T | 1.75T |
조건 C | 1.88T | 1.93T | 1.94T |
조건 D | 1.92T | 1.94T | 1.89T |
B800(TESLA) | P17(W/kg) | |
조건 A | 1.90 | 1.04 |
조건 B | 1.88 | 1.05 |
조건 C | 1.94 | 0.95 |
조건 D | 1.93 | 0.93 |
열연 스트립 두께 (mm) | 냉연 스트립 두께 (mm) | 변형 % | B800 (T) | P17 (W/kg) |
3 | 0.23 | 92.7 | 1.88 | 1.03 |
2.7 | 0.23 | 91.5 | 1.93 | 0.89 |
2.5 | 0.23 | 90.8 | 1.91 | 0.95 |
2.1 | 0.23 | 90.0 | 1.90 | 0.97 |
2.1 | 0.23 | 89.0 | 1.89 | 1.00 |
1.8 | 0.23 | 87.2 | 1.87 | 1.05 |
스트립 두께 (mm) | 1차 냉간압연 감소 (%) | 최종 두께 (mm) | 최종 냉간압연 감소 (%) | B800(T) | P17(W/kg) | |
열간압연 | 1차 냉간압연 | |||||
2.8 | 2.30 | 17.9 | 0.29 | 87.4 | 1.91 | 0.96 |
2.8 | 2.00 | 28.6 | 0.29 | 85.5 | 1.89 | 1.02 |
2.8 | 1.70 | 39.3 | 0.29 | 82.9 | 1.88 | 1.08 |
2.8 | 1.40 | 50.0 | 0.29 | 79.3 | 1.86 | 1.15 |
2.8 | 1.15 | 58.9 | 0.29 | 74.8 | 1.83 | 1.30 |
2.8 | 0.90 | 67.9 | 0.29 | 67.8 | 1.79 | 1.42 |
2.8 | 0.76 | 72.9 | 0.29 | 61.8 | 1.73 | 1.61 |
스트립 No. | 가열 싸이클 | B800 (T) | P17 (W/kg) | |
1 | A | 1.92 | 0.97 | 본 발명 |
2 | A | 1.93 | 0.95 | 본 발명 |
3 | A | 1.93 | 0.96 | 본 발명 |
4 | A | 1.92 | 0.97 | 본 발명 |
5 | A | 1.92 | 0.97 | 본 발명 |
6 | A | 1.93 | 0.96 | 본 발명 |
7 | B | 1.87 | 1.20 | 비교예 |
8 | B | 1.92 | 0.98 | 비교예 |
9 | B | 1.88 | 1.15 | 비교예 |
10 | B | 1.87 | 1.15 | 비교예 |
11 | B | 1.90 | 1.03 | 비교예 |
12 | B | 1.89 | 1.05 | 비교예 |
스트립 No. | 가열 싸이클 | B800(T) | P17(W/kg) | |
1 | A | 1.94 | 0.93 | 본 발명 |
2 | A | 1.93 | 0.92 | 본 발명 |
3 | A | 1.94 | 0.92 | 본 발명 |
4 | A | 1.94 | 0.93 | 본 발명 |
5 | B | 1.88 | 1.03 | 실시예 |
6 | B | 1.88 | 1.04 | 실시예 |
7 | B | 1.87 | 1.10 | 실시예 |
8 | B | 1.89 | 1.02 | 실시예 |
결과적으로, 본 발명에 따른 강 스트립을 따라 매 1m마다 측정된 투자율과 철손의 최대 변화는 각각 2% 및 6% 이내이다.
Claims (13)
- 실리콘 강이 연속적으로 주조, 열간 압연, 냉간 압연되어 냉연 스트립을 얻은 다음, 이 냉연 스트립이 1차 재결정, 필요한 경우 탈탄을 위해 연속 어닐링 되고, 이어서 상기 1차 재결정 온도보다 높은 온도에서 2차 재결정 어닐링되는 그레인 방향성 전기 강 스트립의 제조 방법에 있어서,·열간압연 전의 복수개의 단계로 이루어진 것으로, 상기 단계들 중 최종 단계 동안의 처리 온도가 상기 최종 단계 이전의 단계들의 처리 온도들 중 적어도 하나 보다 낮은 슬래브 가열 처리 단계;·중간 어닐링에 의해 분리되고, 그 단계들 중 적어도 하나에서 75%보다 높은 감소가 행해지는 하나 또는 그 이상의 감소 단계로 이루어진 냉간 압연 단계;·800 내지 950℃의 온도에서 상기 냉연 스트립의 연속 1차 재결정 어닐링 단계;를 포함하는 방법.
- 제 1항에 있어서,상기 슬래브 가열 처리 단계에서, 고온의 가열 단계와 이 보다 낮은 온도에서의 상기 최종 단계와의 사이에서 열간압연 단계가 수행되는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 슬래브 가열 처리 단계는 1200 내지 1400℃의 온도로 이루어지는 제1가열 단계와, 1100 내지 1300℃의 온도로 이루어지는 제2가열 단계를 포함하는 것을 특징으로 하는 방법.
- 제 3항에 있어서,상기 제1가열단계에서의 가열 온도는 상기 슬래브의 표면에 액상 슬래그가 형성되는 온도를 초과하지 않는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 1차 재결정동안 탈탄 처리가 이루어지는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 냉간 압연 후 및 2차 재결정 시작 전의 열처리 중의 어느 하나에서, 상기 스트립에서의 억제제 함량의 증대가 상기 스트립이 고상, 액상, 또는 기상의 물질과 반응함으로써 이루어지는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 강에 용해 가능한 알루미늄의 함량은 80 내지 500 ppm인 것을 특징으로 하는 방법.
- 제 7항에 있어서,상기 강에 용해 가능한 알루미늄의 함량은 250 내지 350 ppm인 것을 특징으로 하는 방법.
- 제 6항에 있어서,상기 억제제 함량의 증대는 최종 두께를 갖는 스트립의 연속 어닐링 처리에서 해리되지 않은 암모니아와의 반응에 의해 이루어지는 것을 특징으로 하는 방법.
- 제 9항에 있어서,상기 억제제 함량의 증대 후에, 상기 스트립은, 상기 2차 재결정 어닐링을 수행하거나, 적어도 시작하기 위한 연속 어닐링 처리를 더 받는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 열간 압연되어 얻어진 열연 스트립의 어닐링은 상기 냉간 압연의 전에 이루어지는 것을 특징으로 하는 방법.
- 제 1항 또는 제 2항에 있어서,상기 1차 재결정 온도에 도달하기 위한 상기 냉연 스트립의 가열 시간은 1 내지 10 초인 것을 특징으로 하는 방법.
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Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT2000RM000451A IT1317894B1 (it) | 2000-08-09 | 2000-08-09 | Procedimento per la regolazione della distribuzione degli inibitorinella produzione di lamierini magnetici a grano orientato. |
ITRM2000A000451 | 2000-08-09 | ||
PCT/EP2001/009168 WO2002012572A1 (en) | 2000-08-09 | 2001-08-08 | Process for the control of inhibitors distribution in the production of grain oriented electrical steel strips |
Publications (2)
Publication Number | Publication Date |
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KR20030033022A KR20030033022A (ko) | 2003-04-26 |
KR100831756B1 true KR100831756B1 (ko) | 2008-05-23 |
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KR1020037001806A Expired - Fee Related KR100831756B1 (ko) | 2000-08-09 | 2001-08-08 | 그레인 방향성 전기 강 스트립의 제조시 억제제 분포를조절하는 방법 |
Country Status (16)
Country | Link |
---|---|
US (1) | US7192492B2 (ko) |
EP (1) | EP1313886B1 (ko) |
JP (1) | JP5005873B2 (ko) |
KR (1) | KR100831756B1 (ko) |
CN (1) | CN100348741C (ko) |
AT (1) | ATE280840T1 (ko) |
AU (1) | AU2001293742A1 (ko) |
BR (1) | BR0113088B1 (ko) |
CZ (1) | CZ2003384A3 (ko) |
DE (1) | DE60106775T2 (ko) |
ES (1) | ES2231556T3 (ko) |
IT (1) | IT1317894B1 (ko) |
PL (1) | PL198442B1 (ko) |
RU (1) | RU2279488C2 (ko) |
SK (1) | SK286281B6 (ko) |
WO (1) | WO2002012572A1 (ko) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
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US7736444B1 (en) * | 2006-04-19 | 2010-06-15 | Silicon Steel Technology, Inc. | Method and system for manufacturing electrical silicon steel |
JP5001611B2 (ja) * | 2006-09-13 | 2012-08-15 | 新日本製鐵株式会社 | 高磁束密度方向性珪素鋼板の製造方法 |
RU2407809C1 (ru) * | 2009-08-03 | 2010-12-27 | Открытое акционерное общество "Новолипецкий металлургический комбинат" | Способ производства анизотропной электротехнической стали с высокими магнитными свойствами |
RU2407808C1 (ru) * | 2009-08-03 | 2010-12-27 | Открытое акционерное общество "Новолипецкий металлургический комбинат" | Способ производства анизотропной электротехнической стали с низкими удельными потерями на перемагничивание |
DE102011107304A1 (de) * | 2011-07-06 | 2013-01-10 | Thyssenkrupp Electrical Steel Gmbh | Verfahren zum Herstellen eines kornorientierten, für elektrotechnische Anwendungen bestimmten Elektrostahlflachprodukts |
CA2841635C (en) * | 2011-07-15 | 2017-01-03 | Tata Steel Ijmuiden Bv | Apparatus for producing annealed and electro-galvanized steels and process for producing said steels |
CN111411215B (zh) * | 2020-03-31 | 2021-09-21 | 北京科技大学设计研究院有限公司 | 一种多钢坯对象的炉温综合决策方法 |
KR102242399B1 (ko) | 2020-05-19 | 2021-04-20 | 주식회사 펀잇 | 공간정보 기반의 정보제공시스템 |
WO2025115662A1 (ja) * | 2023-11-29 | 2025-06-05 | Jfeスチール株式会社 | 熱間圧延方法、熱延コイルの製造方法及び方向性電磁鋼板の製造方法 |
Citations (6)
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US4204891A (en) | 1978-11-27 | 1980-05-27 | Nippon Steel Corporation | Method for preventing the edge crack in a grain oriented silicon steel sheet produced from a continuously cast steel slab |
EP0566986A1 (en) * | 1992-04-16 | 1993-10-27 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having excellent magnetic properties |
US5597424A (en) | 1990-04-13 | 1997-01-28 | Nippon Steel Corporation | Process for producing grain oriented electrical steel sheet having excellent magnetic properties |
WO1998008987A1 (en) * | 1996-08-30 | 1998-03-05 | Acciai Speciali Terni S.P.A. | Process for the production of grain oriented electrical steel strip having high magnetic characteristics, starting from thin slabs |
WO1998041660A1 (en) * | 1997-03-14 | 1998-09-24 | Acciai Speciali Terni S.P.A. | Process for the inhibition control in the production of grain-oriented electrical sheets |
KR100266552B1 (ko) * | 1994-12-05 | 2000-09-15 | 에모또 간지 | 자속밀도가 높으면서 철손이 낮은 일방향성 전자강판 및 그 제조방법 |
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JPS5684420A (en) * | 1979-12-13 | 1981-07-09 | Nippon Steel Corp | Heating method of continuously cast slab for producing high magnetic-flux-density unidirectional silicon-steel plate |
JPH0717961B2 (ja) * | 1988-04-25 | 1995-03-01 | 新日本製鐵株式会社 | 磁気特性、皮膜特性ともに優れた一方向性電磁鋼板の製造方法 |
RU2027779C1 (ru) * | 1990-05-07 | 1995-01-27 | Акционерное общество "Верх-Исетский металлургический завод" | Способ производства изотропной электротехнической стали |
JP3008003B2 (ja) * | 1992-04-16 | 2000-02-14 | 新日本製鐵株式会社 | 磁気特性の優れた一方向性電磁鋼板の製造方法 |
JP3430426B2 (ja) * | 1994-02-08 | 2003-07-28 | Jfeスチール株式会社 | 板幅方向に均一な磁気特性を有する方向性珪素鋼板の製造方法 |
RU2094487C1 (ru) * | 1994-04-20 | 1997-10-27 | Научно-производственное предприятие "Эста" | Способ изготовления текстурированной электротехнической стали |
JPH07300621A (ja) * | 1994-04-28 | 1995-11-14 | Kawasaki Steel Corp | 方向性珪素鋼板のスラブ加熱方法 |
JPH08143962A (ja) * | 1994-11-16 | 1996-06-04 | Nippon Steel Corp | 磁気特性と被膜性状の優れた一方向性電磁鋼板の製造方法 |
JP3369443B2 (ja) * | 1997-01-30 | 2003-01-20 | 新日本製鐵株式会社 | 高磁束密度一方向性電磁鋼板の製造方法 |
IT1299137B1 (it) * | 1998-03-10 | 2000-02-29 | Acciai Speciali Terni Spa | Processo per il controllo e la regolazione della ricristallizzazione secondaria nella produzione di lamierini magnetici a grano orientato |
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2000
- 2000-08-09 IT IT2000RM000451A patent/IT1317894B1/it active
-
2001
- 2001-08-08 BR BRPI0113088-9A patent/BR0113088B1/pt not_active IP Right Cessation
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- 2001-08-08 PL PL358917A patent/PL198442B1/pl not_active IP Right Cessation
- 2001-08-08 AU AU2001293742A patent/AU2001293742A1/en not_active Abandoned
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- 2001-08-08 WO PCT/EP2001/009168 patent/WO2002012572A1/en active IP Right Grant
- 2001-08-08 CZ CZ2003384A patent/CZ2003384A3/cs unknown
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- 2001-08-08 KR KR1020037001806A patent/KR100831756B1/ko not_active Expired - Fee Related
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- 2001-08-08 AT AT01974140T patent/ATE280840T1/de active
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Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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US4204891A (en) | 1978-11-27 | 1980-05-27 | Nippon Steel Corporation | Method for preventing the edge crack in a grain oriented silicon steel sheet produced from a continuously cast steel slab |
US5597424A (en) | 1990-04-13 | 1997-01-28 | Nippon Steel Corporation | Process for producing grain oriented electrical steel sheet having excellent magnetic properties |
EP0566986A1 (en) * | 1992-04-16 | 1993-10-27 | Nippon Steel Corporation | Process for production of grain oriented electrical steel sheet having excellent magnetic properties |
KR100266552B1 (ko) * | 1994-12-05 | 2000-09-15 | 에모또 간지 | 자속밀도가 높으면서 철손이 낮은 일방향성 전자강판 및 그 제조방법 |
WO1998008987A1 (en) * | 1996-08-30 | 1998-03-05 | Acciai Speciali Terni S.P.A. | Process for the production of grain oriented electrical steel strip having high magnetic characteristics, starting from thin slabs |
WO1998041660A1 (en) * | 1997-03-14 | 1998-09-24 | Acciai Speciali Terni S.P.A. | Process for the inhibition control in the production of grain-oriented electrical sheets |
Also Published As
Publication number | Publication date |
---|---|
PL198442B1 (pl) | 2008-06-30 |
RU2003106405A (ru) | 2005-01-10 |
IT1317894B1 (it) | 2003-07-15 |
JP2004506093A (ja) | 2004-02-26 |
EP1313886B1 (en) | 2004-10-27 |
DE60106775D1 (de) | 2004-12-02 |
BR0113088A (pt) | 2003-07-08 |
BR0113088B1 (pt) | 2010-05-18 |
AU2001293742A1 (en) | 2002-02-18 |
CN100348741C (zh) | 2007-11-14 |
PL358917A1 (en) | 2004-08-23 |
EP1313886A1 (en) | 2003-05-28 |
ATE280840T1 (de) | 2004-11-15 |
ES2231556T3 (es) | 2005-05-16 |
WO2002012572A1 (en) | 2002-02-14 |
ITRM20000451A0 (it) | 2000-08-09 |
JP5005873B2 (ja) | 2012-08-22 |
KR20030033022A (ko) | 2003-04-26 |
US20050098235A1 (en) | 2005-05-12 |
SK286281B6 (sk) | 2008-06-06 |
US7192492B2 (en) | 2007-03-20 |
DE60106775T2 (de) | 2005-11-24 |
SK1532003A3 (en) | 2003-09-11 |
RU2279488C2 (ru) | 2006-07-10 |
CN1461352A (zh) | 2003-12-10 |
ITRM20000451A1 (it) | 2002-02-11 |
CZ2003384A3 (cs) | 2003-08-13 |
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