EP1509627B1 - VERFAHREN ZUM HERSTELLEN EINES KALTGEWALZTEN STAHLBANDES MIT EINEM Si-GEHALT VON MINDESTENS 3,2 GEW.-% FÜR ELEKTROMAGNETISCHE ANWENDUNGEN - Google Patents
VERFAHREN ZUM HERSTELLEN EINES KALTGEWALZTEN STAHLBANDES MIT EINEM Si-GEHALT VON MINDESTENS 3,2 GEW.-% FÜR ELEKTROMAGNETISCHE ANWENDUNGEN Download PDFInfo
- Publication number
- EP1509627B1 EP1509627B1 EP03722586A EP03722586A EP1509627B1 EP 1509627 B1 EP1509627 B1 EP 1509627B1 EP 03722586 A EP03722586 A EP 03722586A EP 03722586 A EP03722586 A EP 03722586A EP 1509627 B1 EP1509627 B1 EP 1509627B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cold
- foregoing
- strip
- temperature
- hot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
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
- C22C38/004—Very low carbon steels, i.e. having a carbon content of less than 0,01%
-
- 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
- C21D8/1211—Rapid solidification; Thin strip casting
-
- 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
- C21D8/1272—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
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
-
- 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
Definitions
- the invention relates to a method for producing a cold-rolled steel strip or sheet in thicknesses of ⁇ 0.70 mm for electromagnetic Applications with Si contents of at least 3.2 wt .-% and Al contents of less than 2% by weight.
- Such based high-silicon FeSi steels produced cold strips or sheets are usually considered non-grain oriented Electric sheets used.
- non-grain oriented electrical sheet are here under the DIN EN 10106 ("final annealed Electrical sheet ”) and DIN EN 10165 ("not fully annealed Elektroblech ”) falling products also more anisotropic varieties are included, as long as they are not considered as grain-oriented electrical sheets.
- DIN EN 10106 final annealed Electrical sheet
- DIN EN 10165 not fully annealed Elektroblech
- the steel alloy melts the melt into a slab or thin slab potted.
- This material is then in Direct deployment without reheating or after one Cooling and reheating in one Descaling, a rough rolling and one in a rule multistage hot roll relay performed Finished hot rolling comprehensive hot rolling process to a Rolled hot strip.
- the hot strip is then one usually subjected to a pickling surface treatment, which can be combined with a glow. If necessary, in addition, a hot strip annealing performed before the hot strip is cold rolled to cold strip becomes. Finally, the tape is final annealed or one Subjected to annealing with subsequent post-deformation.
- FeSi materials with an Si content of approximately 6.5% by weight are available on the market.
- the production These products are made by chemical means Deposition of a highly-silica FeSi layer on one conventional electrical steel and a subsequent Diffusion annealing.
- EP 0 377 734 B1 discloses a process for FeSi alloys been described in which after the Reheating the slab a transformation at temperatures of not less than 600 ° C and then one Direct use for another hot rolling or another Heating to temperatures of not less than 400 ° C with subsequent hot rolling is performed. Subsequently Cold rolling takes place to final thickness. These Process parameters are not specific for higher silicided alloys. In practice, that shows up when using the known from EP 0377 734 B1 Process steps for highly-silicided FeSi alloys of According to the invention processed kind no satisfactory Achieve work results.
- the Cooling of the hot strip in direct connection to the Hot rolling to be performed. Otherwise, with the Start the rapid cooling wait until the temperature of the hot strip in the predetermined by the invention Area has dropped, within which the rapid Refrigeration should begin.
- the cooled according to the invention Hot strip at a suitable time of Production process to be coiled before it the further processing is fed to cold strip.
- the cooling rate ⁇ T / ⁇ t is at least 2000 ° C / min.
- the reheating of the starting material preferably takes place at Temperatures ranging from 1000 ° C to 1190 ° C to the Formation of feyalite sure to avoid.
- Another essential feature of the invention is in that during cold rolling those of the invention given upper limit of the temperature of the processed Bandes in the context of manufacturing unavoidable Tolerance is maintained. Basically, therefore, is favorable when the hot strip is at room temperature at the beginning of cold rolling having. It should be in consequence of the entry to Deformation energy unavoidable heat generation during the cold rolling preferably be performed so that Temperatures of ⁇ 200 ° C are not exceeded. Should Nevertheless, taking into account the above-explained Research findings elevated the cold rolling at Temperatures should be carried out so these should be in the Range of 200 ° C and 500 ° C lie. The for the Preheating the hot strip provided before cold rolling Time should be limited to less than 20 minutes be, to otherwise occurring structural changes avoid. These emasculate embrittlement phenomena yourself.
- the invention is suitable for the production of the lower Area of high-silicon steels settled, 4.0-5.0% by weight Si-containing electric sheets for which Production of in the middle range of high-silicon steels settled, more than 5.0 wt .-% Si containing electrical sheets and to Production of in the upper region of the most silicon-containing Steels containing 6.0 to 6.8 wt .-% Si containing Electrical sheets. It can especially in the higher Si-containing alloys, the content of A1 limited the range of unavoidable impurities be.
- the invention is based on Embodiments explained in more detail.
- the slabs are reheated to a reheating temperature T R , pre-rolled and final hot rolled in a seven roll stand hot roll stand at a hot rolling end temperature T F to a hot strip of WB D thickness.
- the hot strip was cooled with a cooling rate ⁇ T / At at least 400 ° C / min as soon as its temperature T c was in the range of 750 ° C to 850 ° C.
- the thus cooled to room temperature hot strip is then subjected to a mechanical pretreatment of its surfaces and then pickled.
- Table 2 shows the process parameters observed in the course of production for six cold strips E1 to E6 produced according to the invention.
- three cold strips V1 to V3 are made from the alloy HiSi and a cold strip V4 from the alloy LoSi using the method steps used to produce the samples E1 to E6 according to the invention, but with process parameters outside the specifications of the invention , The relevant parameters are listed in Table 3 for the non-inventive cold strips V1 to V4 produced for comparison.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Electromagnetism (AREA)
- Manufacturing & Machinery (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Metal Rolling (AREA)
- Heat Treatment Of Sheet Steel (AREA)
Description
- Erschmelzen eines (in Gew.-%) C: < 0,01 %, Si: 3,2 - 7 %, Al: < 2 %, Mn: < 1 %, Rest Eisen und übliche Verunreinigungen enthaltenden Stahls,
- Vergießen des Stahls zu einem Vormaterial, wie einer Bramme, einer Dünnbramme oder einem Dünnband,
- Durchwärmen des Vormaterials auf eine Temperatur TR > 1000 °C,
- Fertigwarmwalzen des durchwärmten Vormaterials bei einer Warmwalzendtemperatur TF von > 800 °C zu einem Warmband,
- Abkühlen des Warmbands im Anschluss an das Fertigwarmwalzen ausgehend von einer mindestens 750 °C jedoch weniger als 850 °C betragenden Temperatur TC des Warmbands mit einer mindestens 400 °C/min betragenden Abkühlgeschwindigkeit ΔT/Δt auf eine weniger als 300 °C betragende Temperatur,
- Oberflächenbehandeln des abgekühlten Warmbands,
- Kaltwalzen des oberflächenbehandelten Warmbands bei einer höchstens 500 °C betragenden Temperatur TCR und
- Schlussglühen des erhaltenen kaltgewalzten Stahlbands oder -blechs.
- die Wiederwärmungstemperatur,
- die Warmwalzendtemperatur,
- die von einer in einem bestimmten Temperaturbereich
liegenden Temperatur ausgehende gezielte rasche
Abkühlung des Warmbands nach dem Ende des Fertigwalzens
und - die Temperatur des Bandes beim Kaltwalzen
In Bezug auf den Übergang von der Warmbanderzeugung zur Herstellung des Kaltbandes kommt dabei der Geschwindigkeit, mit der die rasche Abkühlung des Warmbandes im Anschluss an das Warmwalzen durchgeführt wird, besondere Bedeutung zu. Erfolgt die Weiterverarbeitung des Warmbands zu Kaltband in einem Zeitraum, innerhalb dessen es auch bei im Bereich der erfindungsgemäß einzuhaltenden Untergrenze der Abkühlgeschwindigkeit noch nicht zur Kaltversprödung kommt, so lässt sich auch bei relativ niedrigen Abkühlgeschwindigkeiten ein rissfreies kaltgewalztes Stahlprodukt erzeugen. Vergeht jedoch zwischen der Warmbanderzeugung und dem Kaltwalzen ein längerer Zeitraum, wie beispielsweise viele Tage oder Wochen, so lässt sich ein in erfindungsgemäßer Weise erzeugtes, rissfreies Stahlband oder -blech für elektromagnetische Zwecke immer noch dadurch sicher erzeugen, dass die Abkühlgeschwindigkeit ΔT/Δt mindestens 2000 °C/min beträgt.
Durch eine derart hohe Abkühlgeschwindigkeit lassen sich die bei einer längeren Lagerzeit des Warmbands und einer langsamer erfolgenden Abkühlung zu erwartenden Versprödungseffekte sicher vermeiden.
Legierung | Si | Al | C | Mn | S | Rest |
LoSi | 4,2 | 0,003 | 0,009 | 0,047 | 0,003 | Fe, sonstige Verunreinigungen |
HiSi | 6,3 | 0,002 | 0,006 | 0,088 | 0,002 | Fe, sonstige Verunreinigungen |
Angaben in Gew.-% |
E1 | E2 | E3 | E4 | E5 | E6 | ||
Legierung | HiSi | HiSi | HiSi | LoSi | LoSi | LoSi | |
TR | [°C] | 1150 | 1150 | 1150 | 1150 | 1150 | 1150 |
TF | [°C] | ≈940 | ≈940 | ≈940 | ≈950 | ≈950 | ≈950 |
WBD | [mm] | 1, 8 | 1,8 | 1,8 | 1,7 | 1, 7 | 1,7 |
TC | [°C] | ≈780 | ≈780 | ≈780 | ≈820 | ≈820 | ≈820 |
ΔT/Δt | [°C/min] | ≈2100 | ≈2100 | ≈2100 | ≈2100 | ≈2100 | ≈2100 |
TCR | [°C] | RT | 300 | 500 | RT *) | 300 | 500 |
tCR | [min] | - | ≈18 | ≈18 | ≈14 | ≈18 | |
ΔKW | [%] | 67 | 68 | 68 | 72 | 72 | 72 |
Rissbildung | NEIN | NEIN | NEIN | NEIN | NEIN | NEIN |
V1 | V2 | V3 | V4 | ||
Legierung | HiSi | HiSi | HiSi | LoSi | |
TR | [°C] | 1150 | 1150 | 1250 | 1250 |
TF | [°C] | ≈1000 | ≈730 | ≈850 | ≈800 |
WBD | [mm] | 2,1 | 1,4 | 1,65 | 1,85 |
TC | [°C] | ≈1000 | ≈650 | ≈800 | ≈800 |
ΔT/Δt | [°C/min] | ≈2100 | ≈2100 | ≈1 | ≈1 |
TCR | [°C] | RT | RT *) | RT *) | RT *) |
tCR | [min] | - | - | - | - |
ΔKW | [%] | **) | **) | **) | |
Rissbildung | JA | JA | JA | JA |
Claims (16)
- Verfahren zum Herstellen eines kaltgewalzten Stahlbands oder -blechs für elektromagnetische Anwendungen, bei dem folgende Schritte durchlaufen werden:Erschmelzen eines (in Gew.-%)
C: < 0,01 %,
Si: 3,2 - 7 %,
Al: < 2 %,
Mn: ≤ 1 %,
Rest Eisen und übliche Verunreinigungen enthaltenden Stahls,Vergießen des Stahls zu einem Vormaterial, wie Brammen, Dünnbrammen oder Dünnband,Durchwärmen des Vormaterials auf eine Temperatur
TR > 1000 °C,Fertigwarmwalzen des durchwärmten Vormaterials bei einer Warmwalzendtemperatur TF von > 800 °C zu einem Warmband,Abkühlen des Warmbands im Anschluss an das Fertigwärmwalzen ausgehend von einer mindestens 750 °C jedoch weniger als 850 °C betragenden Temperatur Tc des Warmbands mit einer mindestens 400 °C/min betragenden Abkühlgeschwindigkeit ΔT/Δt auf eine weniger als 300 °C betragende Temperatur,Oberflächenbehandeln des abgekühlten Warmbands,Kaltwalzen des oberflächenbehandelten Warmbands bei einer höchstens 500 °C betragenden Temperatur TCR undSchlussglühen des erhaltenen kaltgewalzten Stahlbands oder -blechs. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Abkühlgeschwindigkeit ΔT/Δt ≥ 2000 °C/min ist.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Wiedererwärmung des Vormaterials bei Temperaturen im Bereich von 1000 °C bis 1190 °C erfolgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Vormaterial in maximal sieben Stichen bei einer Gesamtumformung von mehr als 90 % auf eine Dicke des Warmbands von höchstens 1,5 mm fertigwarmgewalzt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der Umformgrad beim Kaltwalzen größer 60 % jedoch kleiner als 82 % ist.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das erhaltene kaltgewalzte Stahlband oder -blech eine Dicke von höchstens 0,35 mm aufweist.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Warmband zu Beginn des Kaltwalzens Raumtemperatur aufweist.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Kaltwalzen bei Temperaturen durchgeführt wird, welche ≤ 200 °C betragen.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Warmband vor dem Kaltwalzen innerhalb eines Zeitraums von weniger als 20 Minuten auf eine 200 °C bis 500 °C betragende Temperatur erwärmt und bei in diesem Temperaturbereich liegenden Temperaturen kaltgewalzt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Schlussglühung in einer entkohlenden Atmosphäre erfolgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Schlussglühung in einer nichtentkohlenden Atmosphäre erfolgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der Stahl 4,0 - 5,0 Gew.-% Si enthält.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der Stahl >5,0 - 6,8 Gew.-% Si enthält.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, dass der Stahl 6,0 - 6,8 Gew.-% Si enthält.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der Gehalt an Al auf den Bereich der unvermeidbaren Verunreinigungen beschränkt ist.
- Verfahren nach einem der.voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Oberflächenbehandlung ein mechanisches Entzundern und / oder ein Beizen umfasst.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200330094T SI1509627T1 (sl) | 2002-05-07 | 2003-05-02 | POSTOPEK ZA IZDELAVO HLADNO VALJANEGA JEKLENEGA TRAKU Z VSEBNOSTJO Si NAJMANJ 3,2 MAS.% ZA ELEKTROMAGNETNE UPORABE |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10220282 | 2002-05-07 | ||
DE10220282A DE10220282C1 (de) | 2002-05-07 | 2002-05-07 | Verfahren zum Herstellen von kaltgewalztem Stahlband mit Si-Gehalten von mindestens 3,2 Gew.-% für elektromagnetische Anwendungen |
PCT/EP2003/004588 WO2003095683A1 (de) | 2002-05-07 | 2003-05-02 | KALTGEWALZTES STAHLBAND MIT Si-GEHALTEN VON MINDESTENS 3,2 GEW.-% FÜR ELEKTROMAGNETISCHE ANWENDUNGEN |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1509627A1 EP1509627A1 (de) | 2005-03-02 |
EP1509627B1 true EP1509627B1 (de) | 2005-08-31 |
Family
ID=29285151
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03722586A Expired - Lifetime EP1509627B1 (de) | 2002-05-07 | 2003-05-02 | VERFAHREN ZUM HERSTELLEN EINES KALTGEWALZTEN STAHLBANDES MIT EINEM Si-GEHALT VON MINDESTENS 3,2 GEW.-% FÜR ELEKTROMAGNETISCHE ANWENDUNGEN |
Country Status (8)
Country | Link |
---|---|
US (1) | US20060086429A1 (de) |
EP (1) | EP1509627B1 (de) |
JP (1) | JP2005530033A (de) |
AT (1) | ATE303455T1 (de) |
AU (1) | AU2003229765A1 (de) |
DE (2) | DE10220282C1 (de) |
ES (1) | ES2248742T3 (de) |
WO (1) | WO2003095683A1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021115174A1 (de) | 2021-06-11 | 2021-11-11 | Technische Universität Bergakademie Freiberg, Körperschaft des öffentlichen Rechts | Verfahren zur Herstellung eines höherpermeablen, nichtkornorientierten Elektrobleches und dessen Verwendung |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005004037B3 (de) * | 2005-01-27 | 2006-06-14 | Thyssenkrupp Steel Ag | Verfahren zum Herstellen von magnetischem Band oder Tafeln |
TWI462783B (zh) * | 2011-09-08 | 2014-12-01 | China Steel Corp | Steel surface rusting device |
CN110172634B (zh) * | 2019-06-28 | 2020-11-24 | 辽宁石油化工大学 | 一种高硅电工钢薄板及其制备方法 |
AT524149B1 (de) * | 2020-08-20 | 2022-11-15 | Nntech Gmbh | Verfahren zur Bearbeitung eines Stahlblechs |
CN112899581B (zh) * | 2021-01-22 | 2022-06-21 | 北京北冶功能材料有限公司 | 一种高硅钢及其制备方法 |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE572663A (de) * | 1957-11-06 | |||
EP0229846B1 (de) * | 1985-06-14 | 1992-03-18 | Nippon Kokan Kabushiki Kaisha | Herstellungsverfahren für siliziumblattstahl mit weichmagnetischen merkmalen |
JPH07115041B2 (ja) * | 1987-03-11 | 1995-12-13 | 日本鋼管株式会社 | 無方向性高Si鋼板の製造方法 |
JPH032358A (ja) * | 1989-05-27 | 1991-01-08 | Nkk Corp | 鉄損特性に優れた高珪素鋼板 |
KR930011625B1 (ko) * | 1990-07-16 | 1993-12-16 | 신닛뽄 세이데쓰 가부시끼가이샤 | 냉간압연에 의한 판두께가 얇은 초고규소 전자강판의 제조방법 |
KR100316896B1 (ko) * | 1993-09-29 | 2002-02-19 | 에모또 간지 | 철손이낮은무방향성규소강판및그제조방법 |
JP3275712B2 (ja) * | 1995-10-06 | 2002-04-22 | 日本鋼管株式会社 | 加工性に優れた高珪素鋼板およびその製造方法 |
CN1153227C (zh) * | 1996-10-21 | 2004-06-09 | 杰富意钢铁株式会社 | 晶粒取向电磁钢板及其生产方法 |
EP0926250B1 (de) * | 1997-04-16 | 2009-04-15 | Nippon Steel Corporation | Unidirektionales elektromagnetisches stahlblech mit hervorragenden film- und magnetischen eigenschaften, herstellungsverfahren und entkohlungsglühungskonfiguration dafür |
TW476790B (en) * | 1998-05-18 | 2002-02-21 | Kawasaki Steel Co | Electrical sheet of excellent magnetic characteristics and its manufacturing method |
US6436199B1 (en) * | 1999-09-03 | 2002-08-20 | Kawasaki Steel Corporation | Non-oriented magnetic steel sheet having low iron loss and high magnetic flux density and manufacturing method therefor |
-
2002
- 2002-05-07 DE DE10220282A patent/DE10220282C1/de not_active Expired - Fee Related
-
2003
- 2003-05-02 ES ES03722586T patent/ES2248742T3/es not_active Expired - Lifetime
- 2003-05-02 JP JP2004503673A patent/JP2005530033A/ja active Pending
- 2003-05-02 DE DE50301115T patent/DE50301115D1/de not_active Expired - Lifetime
- 2003-05-02 AU AU2003229765A patent/AU2003229765A1/en not_active Abandoned
- 2003-05-02 WO PCT/EP2003/004588 patent/WO2003095683A1/de active IP Right Grant
- 2003-05-02 AT AT03722586T patent/ATE303455T1/de active
- 2003-05-02 EP EP03722586A patent/EP1509627B1/de not_active Expired - Lifetime
- 2003-05-02 US US10/513,767 patent/US20060086429A1/en not_active Abandoned
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021115174A1 (de) | 2021-06-11 | 2021-11-11 | Technische Universität Bergakademie Freiberg, Körperschaft des öffentlichen Rechts | Verfahren zur Herstellung eines höherpermeablen, nichtkornorientierten Elektrobleches und dessen Verwendung |
Also Published As
Publication number | Publication date |
---|---|
AU2003229765A1 (en) | 2003-11-11 |
US20060086429A1 (en) | 2006-04-27 |
DE10220282C1 (de) | 2003-11-27 |
WO2003095683A1 (de) | 2003-11-20 |
EP1509627A1 (de) | 2005-03-02 |
ATE303455T1 (de) | 2005-09-15 |
DE50301115D1 (de) | 2005-10-06 |
ES2248742T3 (es) | 2006-03-16 |
JP2005530033A (ja) | 2005-10-06 |
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