EP1263993B1 - Verfahren zum herstellen von nichtkornorientiertem elektroblech - Google Patents
Verfahren zum herstellen von nichtkornorientiertem elektroblech Download PDFInfo
- Publication number
- EP1263993B1 EP1263993B1 EP01933708A EP01933708A EP1263993B1 EP 1263993 B1 EP1263993 B1 EP 1263993B1 EP 01933708 A EP01933708 A EP 01933708A EP 01933708 A EP01933708 A EP 01933708A EP 1263993 B1 EP1263993 B1 EP 1263993B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- strip
- hot
- rolled
- hot strip
- rolling
- 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
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Classifications
-
- 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
- C21D8/1272—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
- C21D3/00—Diffusion processes for extraction of non-metals; Furnaces therefor
- C21D3/02—Extraction of non-metals
- C21D3/04—Decarburising
-
- 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
Definitions
- the invention relates to a method for producing non-grain oriented electrical sheet.
- non-grain oriented electrical steel are listed here the DIN EN 10106 ("final annealed electrical sheet") and DIN EN 10165 (“non-final annealed electrical steel sheet”) covered electrical sheets understood. Beyond that also more anisotropic varieties included as long as they not to be considered grain-oriented electrical sheets.
- Non-grain oriented electrical sheets in the thickness range of 0.65 to 1 mm for example, use in the Production of engines, each only for short Operating times are turned on.
- Such engines are in the field of home appliances or used as auxiliary drives in motor vehicles.
- Such engines should deliver high performance, whereas energy consumption is a subordinate one Role play.
- a first method for producing Non-grain oriented hot rolled electrical steel is out DE 198 07 122 A1.
- In the known method becomes one (in mass%) 0.001 to 0.1% C, 0.05 to 3.0% Si, to 0.85% A1, where% Si + 2A1 ⁇ 3.0%, and 0.5 - 2.0% Mn and the remainder iron and usual Impurities containing starting material directly from the Pouring heat or after reheating to one hot rolled at least 900 ° C. in the As part of the hot rolling are targeted two or more Forming stitches in the two-phase area austenite / ferrite carried out. In this way can be saved of time and energy if necessary cold-rolled and finally treated electrical steel produce, which compared to conventional sheets of this Kind has improved magnetic properties.
- Non-grain oriented electrical sheet like her
- a Vorbandes from a cast slab can also be thin slabs or direct used, cast pre-bands for generating Electrical sheets are used.
- Cast tapes also have the option of To cast extremely thin tapes, the dimensions of which Approximated dimensions of the hot strip to be produced are.
- the magnetic properties of the final product become through each of the individual in the making influenced processing steps. Therefore For example, when hot rolling the stitch sequence and the condition of each rolling pass in the hot strip existing structure depending on the Steel composition determined conversion behavior of the Steel above the temperature at the beginning of rolling and which was carried out between the individual rolling passes Cooling adjusted so that the desired magnetic Properties of the final product can be achieved. As well the properties of the final product are determined by the Annealing temperatures, the reel temperature and the Deformations in the course of cold rolling determined.
- the object of the invention is a method specify with which in particular thicker Non-grain oriented electrical sheets cost-effective produce good magnetic properties have.
- an austenite-forming Steel cast strip from the casting heat used directly rolled to a hot strip is used directly rolled to a hot strip.
- the rolling conditions are during hot rolling chosen so that the complete Ferrite transformation not until the end of rolling is completed. Instead, at least the last stitch in the mixed area austenite / ferrite performed while all other stitches in austenite to be rolled.
- Electro-plate tapes are produced whose thickness is so low is that she, without again to the thickness reduction cold rolled, delivered to the end user can be. Particularly good results can be achieved achieve a method according to the invention, if the Starting material as a cast thin slab or cast strip is produced and the hot rolling continuously on the Production of the starting material follows. So have hot tapes, in accordance with the invention from a on a Casting mill produced and continuously processed starting material are manufactured, excellent features.
- the finished hot rolled and if necessary, cooled hot rolled strip. there the reel temperature is preferably at least 700 ° C.
- a hot strip annealing all or at least be saved to a substantial extent.
- the hot strip is already softened in the coil, with his Characteristics determining characteristics, such as grain size, Texture and excretions are positively affected.
- the band using the coil heat of a passive Annealing is subjected.
- Such from the coil heat "in-line" annealing performed at high temperature coiled, not significantly cooled in the coil Hot strip may otherwise fail completely replace required hot band bake annealing.
- annealed hot strips with particularly good magnetic and technological properties produce.
- the required time and Energy expenditure is considerably lower than with the conventionally for improving the properties of Electric sheet performed hot strip annealing.
- the properties to be set can do this necessitate the tape following the reeling be subjected to an annealing.
- the hot strip annealing in which form the hot strip annealing is performed can It may be beneficial to the annealing in a conventional manner under an oxygen-reduced atmosphere perform.
- the Reeling at these temperatures leads to the to a solidified alloy Hot strip state.
- total change in shape ⁇ h is understood to mean the ratio of the decrease in thickness during rolling in the respective phase region to the thickness of the strip when it enters the relevant phase region.
- a hot strip produced according to the invention has, for example, a thickness h 0 after rolling in the austenite region. In the course of the subsequent rolling in the two-phase mixing zone, the thickness of the hot strip is reduced to h 1 .
- the final annealing after pickling at one lower annealing temperature of at least 650 ° C carried out so is a non-annealed Get electrical tape, which if necessary one Final annealing can be subjected to the end user.
- Both annealing treatments can, depending on the Peculiarities of the respective alloy, the desired Properties of the electric sheet and the available standing facilities, either in the hood furnace or in the Continuous furnace be performed.
- Hot rolled strip can be improved by that the pickled hot strip at a degree of deformation of more than 3% to 15% temper rolling. Also this Nachwalzen does not lead to structural changes that would be comparable with the changes that occur during cold rolling because of This achieved high degrees of deformation usually targeted be brought about.
- a further advantageous embodiment of the invention is characterized in that the hot rolling in the mixing area done with lubrication.
- hot rolling with Lubrication occur on the one hand lower shear deformations so that the rolled strip results in a more homogeneous Structure over the cross section receives.
- the rolling forces so that over the respective Walzstich a higher thickness decrease is possible.
- the final thickness of the hot strip is 0.65 mm up to 1 mm. At low cost and consequently produced inexpensively marketable bands of this thickness a high demand.
- the process according to the invention is particularly suitable for Processing of such steels, which has a Si content of have at most 1 wt .-%.
- Such steels have a pronounced austenite phase, so that the transition from the austenite to the mixed phase austenite / ferrite can be controlled very precisely.
- J2500 designate the magnetic polarization at magnetic field strengths of 2500 A / m, 5000 A / m and 10000 A / m, respectively.
- P 1.0 or P 1.5 is the Loss of magnetization at a polarization of 1.0 T. or 1.5 T and a frequency of 50 Hz understood.
- Magnetic properties are each on individual strips measured along the rolling direction.
- compositions formed melts have been continuously cast in a continuous casting plant to each a pre-band, which has also been continuously fed into a multi-roll stand comprising hot rolling.
- Tables 2a-2c show the magnetic properties J 2500 , J 5000 , J 10000 , P 1.0 and P 1.5 for each of three electrical sheets A1-A3 or B1-B3 produced from steels A and B, respectively.
- the center of gravity of the deformation has been placed in each case in the area in which the respective strip was in the austenitic state.
- austenite / ferrite only one rolling pass has been carried out.
- the total deformation ⁇ H achieved here was less than 35%, in particular 30%.
- Diagram 2 is logarithmic for the three According to the invention produced electrical sheets a, b, c and the conventionally produced sheet d of the respective Course of the specific loss of magnetization over the magnetic polarization has been applied.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Materials Engineering (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Electromagnetism (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Soft Magnetic Materials (AREA)
- Metal Rolling (AREA)
- Winding, Rewinding, Material Storage Devices (AREA)
- Cereal-Derived Products (AREA)
Description
- C:
- 0,0001 - 0,05 %,
- Si:
- ≤ 1,5 %,
- Al :
- ≤ 0,5 %, wobei [%Si] + 2[%Al] ≤ 1,8,
- Mn:
- 0,1 - 1,2 %,
Rest Eisen sowie übliche Verunreinigungen,
hergestellt ist, in einer Fertigwalzstaffel bei oberhalb der Ar1-Temperatur liegenden Temperaturen ein Warmband mit einer Dicke ≤ 1,5 mm gewalzt wird, wobei mindestens der letzte Umformstich des Warmwalzens im Mischgebiet Austenit / Ferrit durchgeführt wird und die gesamte im Zuge des Walzens im Mischgebiet Austenit / Ferrit erreichte Formänderung εH < 35 % ist.
0,005 Gew.-%, so ist es zweckmäßig, wenn das Warmband vor einer Konfektionierung und Auslieferung entkohlend geglüht wird.
"J2500", "J5000" bzw. "J10000" bezeichnen im folgenden die magnetische Polarisation bei magnetischen Feldstärken von 2500 A/m, 5000 A/m bzw. 10000 A/m.
Stahl | C | Si | Al | Mn |
A | 0,008 | 0,10 | 0,12 | 0,34 |
B | 0,007 | 1,19 | 0,13 | 0,23 |
Zusammensetzungen gebildete Schmelzen sind in einer Gießwalzanlage kontinuierlich zu jeweils einem Vorband gegossen worden, welches ebenso kontinuierlich in eine mehrere Walzgerüste umfassende Warmwalzstaffel geleitet worden ist.
Blech | J2500 [T] | J5000 [T] | J10000 [T] | P1,0 [W/kg] | P1,5 [W/kg] |
A1 | 1,623 | 1,704 | 1,513 | 5,494 | 12,457 |
B1 | 1,646 | 1,717 | 1,556 | 4,466 | 9,593 |
Blech | J2500 [T] | J5000 [T] | J10000 [T] | P1,0 [W/kg] | P1,5 [W/kg] |
A2 | 1,651 | 1,726 | 1,564 | 5,354 | 13,548 |
B2 | 1,638 | 1,716 | 1,550 | 3,614 | 8,554 |
Blech | J2500 | J5000 | J10000 | P1,0 | P1,5 |
[T] | [T] | [T] | [W/kg] | [W/kg] | |
A3 | 1,658 | 1,728 | 1,578 | 4,892 | 11,073 |
B3 | 1,611 | 1,690 | 1,532 | 3,062 | 7,641 |
Claims (25)
- Verfahren zum Herstellen von nichtkornorientiertem warmgewalzten Elektroblech, bei dem aus einem Vormaterial, wie gegossenen Brammen, Bändern, Vorbändern oder Dünnbrammen, das aus einem Stahl mit (in Gewichts-%)
- C:
- 0,0001 - 0,05 %,
- Si:
- ≤ 1,5 %,
- Al:
- ≤ 0,5 %, wobei [%Si] + 2[%Al] ≤ 1,8,
- Mn:
- 0,1 - 1,2 %,
Rest Eisen sowie übliche Verunreinigungen,
hergestellt ist, in einer Fertigwalzstaffel bei oberhalb der Ar1-Temperatur liegenden Temperaturen ein Warmband mit einer Dicke ≤ 1,5 mm gewalzt wird, wobei mindestens der letzte Umformstich des Warmwalzens im Mischgebiet Austenit / Ferrit durchgeführt wird und die gesamte im Zuge des Walzens im Mischgebiet Austenit / Ferrit erreichte Formänderung εH < 35 % ist. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der Stahl bis insgesamt 1,5 % an Legierungszusätzen von P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb und / oder B enthält.
- Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß das Vormaterial als gegossene Dünnbramme oder gegossenes Band erzeugt wird und daß das Warmwalzen kontinuierlich auf die Erzeugung des Vormaterials folgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß Warmband gehaspelt wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Haspeltemperatur mindestens 700 °C beträgt.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das Warmband unter Nutzung der Coilhitze einer passiven Glühung unterzogen wird.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das Warmband im Anschluß an das Haspeln geglüht wird.
- Verfahren nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, daß die Warmbandglühung unter einer sauerstoffreduzierten Atmosphäre durchgeführt wird.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß die Haspeltemperatur ≤ 600 °C beträgt.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß das gehaspelte Warmband unmittelbar anschließend an das Haspeln im Coil beschleunigt abgekühlt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die gesamte Formänderung εH während des Walzens im Mischgebiet Austenit / Ferrit 10 % - 15 % beträgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmband nach dem Haspeln gebeizt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmband bei einer Glühtemperatur von mindestens 740 °C zu einem schlußgeglühten Elektroband geglüht wird.
- Verfahren nach Anspruch 1 oder 12, dadurch gekennzeichnet, daß das Warmband bei einer Glühtemperatur von mindestens 650 °C zu einem nichtschlußgeglühten Elektroband geglüht wird.
- Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß das Glühen im Haubenofen durchgeführt wird.
- Verfahren nach Anspruch 13 oder 14, dadurch gekennzeichnet, daß das Glühen im Durchlaufofen durchgeführt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmband ohne kaltgewalzt zu werden konfektioniert und ausgeliefert wird.
- Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das Warmband bei einem Umformgrad von ≤ 3 % glattgewalzt wird.
- Verfahren nach Anspruch 18, dadurch gekennzeichnet, daß das glattgewalzte Band konfektioniert und ausgeliefert wird.
- Verfahren nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, daß das Warmband bei einem Umformgrad von > 3 % - 15 % dressiergewalzt wird.
- Verfahren nach Anspruch 20, dadurch gekennzeichnet, daß das dressierte Band konfektioniert und ausgeliefert wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Enddicke des Warmbandes 0,65 bis 1 mm beträgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmwalzen im Mischgebiet mit Schmierung erfolgt.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß der Si-Gehalt des Stahles höchstens 1 Gew.-% beträgt.
- Verfahren nach einem der Ansprüche 17, 19 oder 21, dadurch gekennzeichnet, daß der C-Gehalt des Stahles mehr als 0,005 Gew.-% beträgt und daß das Warmband vor seiner Konfektionierung und Auslieferung entkohlend geglüht wird.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10012838 | 2000-03-16 | ||
DE10012838 | 2000-03-16 | ||
DE10015691A DE10015691C1 (de) | 2000-03-16 | 2000-03-29 | Verfahren zum Herstellen von nichtkornorientiertem Elektroblech |
DE10015691 | 2000-03-29 | ||
PCT/EP2001/002974 WO2001068925A1 (de) | 2000-03-16 | 2001-03-15 | Verfahren zum herstellen von nichtkornorientiertem elektroblech |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1263993A1 EP1263993A1 (de) | 2002-12-11 |
EP1263993B1 true EP1263993B1 (de) | 2005-08-31 |
Family
ID=26004861
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01933708A Expired - Lifetime EP1263993B1 (de) | 2000-03-16 | 2001-03-15 | Verfahren zum herstellen von nichtkornorientiertem elektroblech |
Country Status (12)
Country | Link |
---|---|
US (1) | US6767412B2 (de) |
EP (1) | EP1263993B1 (de) |
JP (1) | JP5265835B2 (de) |
KR (1) | KR100771253B1 (de) |
AT (1) | ATE303454T1 (de) |
AU (1) | AU2001260127A1 (de) |
BR (1) | BR0109285A (de) |
DE (2) | DE10015691C1 (de) |
ES (1) | ES2248329T3 (de) |
MX (1) | MXPA02008528A (de) |
PL (1) | PL197691B1 (de) |
WO (1) | WO2001068925A1 (de) |
Families Citing this family (20)
Publication number | Priority date | Publication date | Assignee | Title |
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EP1415008A1 (de) * | 2001-08-11 | 2004-05-06 | ThyssenKrupp Stahl AG | Nichtkornorientiertes elektroblech oder -band und verfahren zu seiner herstellung |
DE10153234A1 (de) * | 2001-10-31 | 2003-05-22 | Thyssenkrupp Stahl Ag | Für die Herstellung von nichtkornorientiertem Elektroblech bestimmtes, warmgewalztes Stahlband und Verfahren zu seiner Herstellung |
DE10221793C1 (de) | 2002-05-15 | 2003-12-04 | Thyssenkrupp Electrical Steel Ebg Gmbh | Nichtkornorientiertes Elektroband oder -blech und Verfahren zu seiner Herstellung |
DE10253339B3 (de) * | 2002-11-14 | 2004-07-01 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen eines für die Verarbeitung zu nicht kornorientiertem Elektroband bestimmten Warmbands, Warmband und daraus hergestelltes nicht kornorientiertes Elektroblech |
US20050000596A1 (en) | 2003-05-14 | 2005-01-06 | Ak Properties Inc. | Method for production of non-oriented electrical steel strip |
KR101067478B1 (ko) * | 2003-12-23 | 2011-09-27 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR101130725B1 (ko) * | 2004-12-21 | 2012-03-28 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR100721818B1 (ko) * | 2005-12-19 | 2007-05-28 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR100721926B1 (ko) * | 2005-12-19 | 2007-05-28 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 |
KR100721864B1 (ko) * | 2005-12-19 | 2007-05-28 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판의 제조방법 |
EP1838882A4 (de) * | 2004-12-21 | 2011-03-02 | Posco Co Ltd | Nichtorientierte elektrostahlbleche mit hervorragenden magnetischen eigenschaften und herstellungsverfahren dafür |
KR100721865B1 (ko) * | 2005-12-19 | 2007-05-28 | 주식회사 포스코 | 자기적 특성이 우수한 무방향성 전기강판 및 그 제조방법 |
US8333923B2 (en) * | 2007-02-28 | 2012-12-18 | Caterpillar Inc. | High strength gray cast iron |
JP5317552B2 (ja) * | 2008-06-26 | 2013-10-16 | オーエスジー株式会社 | 転造ダイス |
JP5423629B2 (ja) * | 2010-09-21 | 2014-02-19 | 新日鐵住金株式会社 | 磁束密度の高い無方向性電磁熱延鋼帯の製造方法 |
KR101917468B1 (ko) | 2016-12-23 | 2018-11-09 | 주식회사 포스코 | 박물 열연 전기강판 및 그 제조방법 |
DE102017208146B4 (de) | 2017-05-15 | 2019-06-19 | Thyssenkrupp Ag | NO-Elektroband für E-Motoren |
WO2020094230A1 (de) | 2018-11-08 | 2020-05-14 | Thyssenkrupp Steel Europe Ag | Elektroband oder -blech für höherfrequente elektromotoranwendungen mit verbesserter polarisation und geringen ummagnetisierungsverlusten |
DE102019216240A1 (de) * | 2019-10-22 | 2021-04-22 | Muhr Und Bender Kg | Verfahren und Vorrichtung zur Herstellung eines nicht-kornorientierten Elektrobands |
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 |
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JP3348802B2 (ja) * | 1993-06-30 | 2002-11-20 | 新日本製鐵株式会社 | 磁束密度が高く、鉄損の低い無方向性電磁鋼板の製造方法 |
DE69518529T2 (de) * | 1994-06-24 | 2001-04-19 | Nippon Steel Corp., Tokio/Tokyo | Verfahren zur herstellung von elektrischen nicht orientierten stahlplatten mit hoher magnetischer flussdichte und geringem eisenverlust |
JP3379622B2 (ja) * | 1996-12-04 | 2003-02-24 | 新日本製鐵株式会社 | 磁束密度が高いホットファイナル無方向性電磁鋼板の製造方法 |
JP3388119B2 (ja) * | 1996-12-04 | 2003-03-17 | 新日本製鐵株式会社 | 磁束密度の高い低級無方向性電磁鋼板の製造方法 |
JPH10251752A (ja) * | 1997-03-13 | 1998-09-22 | Kawasaki Steel Corp | 磁気特性に優れる熱延電磁鋼板の製造方法 |
DE19807122C2 (de) * | 1998-02-20 | 2000-03-23 | Thyssenkrupp Stahl Ag | Verfahren zur Herstellung von nichtkornorientiertem Elektroblech |
JP2001123225A (ja) * | 1999-10-27 | 2001-05-08 | Nippon Steel Corp | 磁束密度が高く、鉄損の低い熱延珪素鋼板の製造方法 |
-
2000
- 2000-03-29 DE DE10015691A patent/DE10015691C1/de not_active Expired - Fee Related
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2001
- 2001-03-15 DE DE50107281T patent/DE50107281D1/de not_active Expired - Lifetime
- 2001-03-15 AU AU2001260127A patent/AU2001260127A1/en not_active Abandoned
- 2001-03-15 US US10/221,685 patent/US6767412B2/en not_active Expired - Lifetime
- 2001-03-15 MX MXPA02008528A patent/MXPA02008528A/es not_active Application Discontinuation
- 2001-03-15 PL PL357413A patent/PL197691B1/pl unknown
- 2001-03-15 JP JP2001567404A patent/JP5265835B2/ja not_active Expired - Lifetime
- 2001-03-15 AT AT01933708T patent/ATE303454T1/de active
- 2001-03-15 ES ES01933708T patent/ES2248329T3/es not_active Expired - Lifetime
- 2001-03-15 BR BR0109285-5A patent/BR0109285A/pt not_active IP Right Cessation
- 2001-03-15 WO PCT/EP2001/002974 patent/WO2001068925A1/de active IP Right Grant
- 2001-03-15 KR KR1020027012196A patent/KR100771253B1/ko active IP Right Grant
- 2001-03-15 EP EP01933708A patent/EP1263993B1/de not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE303454T1 (de) | 2005-09-15 |
PL357413A1 (en) | 2004-07-26 |
KR20030011794A (ko) | 2003-02-11 |
PL197691B1 (pl) | 2008-04-30 |
AU2001260127A1 (en) | 2001-09-24 |
BR0109285A (pt) | 2002-12-17 |
WO2001068925A1 (de) | 2001-09-20 |
DE50107281D1 (de) | 2005-10-06 |
KR100771253B1 (ko) | 2007-10-30 |
DE10015691C1 (de) | 2001-07-26 |
ES2248329T3 (es) | 2006-03-16 |
US6767412B2 (en) | 2004-07-27 |
JP5265835B2 (ja) | 2013-08-14 |
JP2003527483A (ja) | 2003-09-16 |
EP1263993A1 (de) | 2002-12-11 |
US20030188805A1 (en) | 2003-10-09 |
MXPA02008528A (es) | 2004-05-17 |
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