EP1194599B1 - Verfahren zum herstellen von nicht kornorientiertem elektroblech - Google Patents
Verfahren zum herstellen von nicht kornorientiertem elektroblech Download PDFInfo
- Publication number
- EP1194599B1 EP1194599B1 EP00920746A EP00920746A EP1194599B1 EP 1194599 B1 EP1194599 B1 EP 1194599B1 EP 00920746 A EP00920746 A EP 00920746A EP 00920746 A EP00920746 A EP 00920746A EP 1194599 B1 EP1194599 B1 EP 1194599B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- annealing
- rolling
- deformation
- strip
- 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
- 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
- C21D8/1216—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
- C21D8/1216—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
- 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
Definitions
- the invention relates to a method for producing not grain-oriented electrical sheet, in which from a made of a steel material, such as cast Slabs, bands, curtains or thin slabs, a Hot strip is made, the electric sheet a low core loss and high Polarization and good mechanical properties has.
- a steel material such as cast Slabs, bands, curtains or thin slabs
- a Hot strip is made, the electric sheet a low core loss and high Polarization and good mechanical properties has.
- Such non-grain oriented electrical sheets are mainly used as nuclear material in electrical Machines, such as motors and generators, with rotating magnetic flux direction used.
- non-grain oriented electrical sheet are here under the DIN EN 10106 ("final annealed Electrical sheet ”) and DIN EN 10165 (“not final annealed Electrical sheet ”) falling electric sheets understood In addition, more anisotropic varieties are included, as long as they are not grain-oriented electrical sheets be valid.
- Non-grain oriented Electrical sheet metal not only affects Non-grain oriented electrical sheets with high losses (P1.5 ⁇ 5 - 6 W / kg), but also sheets with medium (3.5 W / kg ⁇ P1.5 ⁇ 5.5 W / kg) and low losses (P1.5 ⁇ 3.5). Therefore one strives, the entire spectrum the weak, medium and highly silicated Electrotechnical steels in terms of its to improve magnetic polarization values.
- the object of the invention is a inexpensive way to produce electrical sheets indicate with improved properties.
- a method for producing non-grain oriented electrical steel sheet comprising: a starting material, such as cast slab, strip or thin slab, made of a steel having% by weight 0.001-0.05% C, 0.7-1 , 5% Si, ⁇ 0.4% Al, with Si + 2 Al ⁇ 1.7%, 0.1-1.2% Mn, optionally up to a total of 1.5% of alloying additives from the group P, Sn, Sb , Zr, V, Ti, N, Ni, Co, Nb and / or B, and the remainder being iron and customary impurities, a hot strip is produced by directing the starting material directly from the casting heat or after a previous reheating to at least 1000 At least 1180 ° C reheating temperature hot rolled in several forming passes and then coiled, wherein during hot rolling at least the first forming pass in Austenit with a total change in shape ⁇ h of at least 45% one or more Umformstichetechnik GmbHmaschineneau, ⁇ h of at least 45% one or more Um
- the invention is based on the recognition that Electrical sheets with optimized properties through the Selection of specific forming rates during hot rolling in the phase regions ⁇ -phase (austenite), ⁇ / ⁇ -phase (Two-phase mixed region) and ⁇ -phase (ferrite) at transforming alloy of the type in question here can be produced. It has been shown that by a suitable combination of the phase sequence in Hot rolling in conjunction with certain final rolling and Reel temperatures are a crucial boost to the can achieve magnetic polarization.
- the magnetic Properties of an electrical sheet by deformation during the individual in the course of hot rolling souformenen forming passes depending on the respective Microstructure influenced specifically. Decisive share has rolling in the austenite and ferrite regions, whereas the proportion of deformation in the two-phase mixed area should be as low as possible.
- the invention Procedure is therefore particularly for the processing of such Fe-Si alloys are suitable, which no pronounced two-phase mixed area between the austenite and have the ferrite region.
- the hot rolling according to the invention is usually in one formed of several rolling stands Finishing roll completed.
- There is the Purpose of one or more stitches Walzens Austenit on the one hand, the transition from austenite to ferrite controlled within the Finishing roll to be able to perform.
- On the other hand serve the austenit with Vietnamese formenen Umformstiche in addition, the thickness of the hot strip before the start of rolling in the ferrite region so that during the Ferrite rolling desirable overall shape change safely is reached.
- Rolling in the ferrite area comprises also at least one forming pass.
- several Umformstiche in ferrite go through to the required overall shape change of At least 45% safe to reach and so the desired To obtain adjustment of the hot strip structure.
- total change in shape ⁇ h is understood here to mean the ratio of the decrease in thickness during rolling in the respective phase region to the thickness of the strip when entering 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 ferrite region, the thickness of the hot strip is reduced to h 1 .
- the total change in shape ⁇ h during ferrite rolling should reach at least 45% in order to set a state of hot-rolled strip favoring the desired magnetic and technological properties in terms of grain size, texture and precipitations or to prepare it for the subsequent processing steps.
- hot rolling can thus produce a hot strip, which can be used in the further for the production of an electrical steel and for the production of components with excellent magnetic properties. Costly additional processing steps or the maintenance of certain high temperatures during hot rolling are not required for this purpose.
- the method according to the invention makes it possible to inexpensively produce a high-quality electrical sheet material by means of a rolling strategy which is optimized both with regard to the temperature control and with regard to the staggering of the deformations in conjunction with a suitably selected coiling temperature.
- a particular with respect to the resulting during the implementation of a method rolling forces and the technological properties of the produced hot strip particularly advantageous embodiment of the invention is characterized in that the hot strip is so strongly cooled after the Austenit capable in the transformation that the ferrite conversion before the subsequent performed Forming is essentially complete.
- the two-phase mixed area austenite / ferrite is passed through the two shortest paths between two forming passes, so that the rolled strip is rolled in the austenite area only in the ferrite area after rolling.
- the total change in shape ⁇ h during rolling in the ferrite region should preferably be at least 50%. This rolling in the austenite and ferrite is carried out under exclusion of rolling in the mixed area austenite / ferrite.
- a particularly suitable embodiment of the invention is characterized in that after the at least one forming pass in the austenite region, the hot strip undergoes at least one forming pass in the two-phase mixed region austenite / ferrite, during which a total degree of deformation ⁇ h of at most 30% is reached, during which process at least one subsequently in Ferrit capable carried out Umformstichs a Rescueumformgrad ⁇ h of at least 45% is achieved.
- the extent of rolling in the two-phase mixing area is largely restricted and the center of gravity of the forming is placed on the rolling in the ferrite area.
- a reel temperature of at least 700 ° C In compliance with this reel temperature can be an additional hot strip annealing whole 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. It is particularly advantageous in this context, if the coiled hot strip from the coil heat of a direct Annealing is subjected and when the annealing time at a Annealing temperature above 700 ° C for at least 15 minutes is.
- Such "in-line” annealing of the uncoiled at high temperature, not in the coil otherwise cooled hot-rolled strip may be otherwise possibly required hot strip annealing completely replace. This is how annealed hot strips can be with particularly good magnetic and technological Create properties. 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 reel temperature is less than 600 ° C, especially less than 550 ° C, is.
- the reeling in These temperatures leads to a solidified Hot strip state.
- this approach especially for steel too particularly good results, which is at least 0.7 Contain% by weight of Si.
- At least one of the last in the ferrite area completed forming passes should be done with lubrication hot rolled.
- hot rolling with lubrication on the one hand, lower shear deformations occur, so that the rolled strip resulted in a more homogeneous structure over the cross section receives.
- the lubrication reduces the rolling forces, so that over the each rolling pass a higher reduction in thickness possible is. Therefore, it may, depending on the desired properties of the electric sheet to be produced, be advantageous if all rolled passes passed during hot rolling a rolling lubrication be performed.
- the hot strip produced in accordance with the invention is especially due to its mechanical properties suitable, in one or more stages in a conventional manner a final thickness to be cold rolled. If that Cold rolling is carried out in several stages, should be in Connect to at least one of the cold rolling stages Intermediate annealing done to the good mechanical Maintain properties of the band.
- Cold-rolled electrical steel produced according to the invention is excellent cutting and punching and is suitable as such, especially to components, such as lamellae or blanks to be processed.
- components such as lamellae or blanks to be processed.
- Processing of a "semi-finished" sheet suitably from this electrical sheet finished components at the user final annealing.
- the final annealing of the cold-rolled electric sheet preferably in one decarburizing atmosphere.
- the invention is based on Embodiments explained in more detail.
- J2500 refers to the following the magnetic polarization at magnetic field strengths of 2500 A / m, 5000 A / m or 10000 A / m.
- 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.
- the steel C is a steel of the present invention having an Si content ranging from 0.7 to 1.5% by weight.
- the magnetic properties J 2500 , J 5000 , J 10000 , P 1.0 and P 1.5 measured on individual strips along the rolling direction are for three electric sheets B1, B2, B3 made of the steels A, B, C specified.
- the slabs cast from the steels A, B and C, respectively, have been reheated as starting material to a temperature of more than 1000 ° C. in each case and passed into a rolling scale. At least the first forming pass has been carried out exclusively in the austenite area in the finishing hot rolling mill. Following rolling in the austenite region, the hot strips were cooled to such an extent that the two-phase mixed area austenite / ferrite passed in a very short time and the ferrite conversion was completed before the next rolling stand was reached.
- Table 3 shows the magnetic properties J 2500 , J 50000 , J 10000 , P 1.0 and P 1.5 for an electric sheet B4 produced based on the steel C of the present invention.
- this electrical steel strip B4 has been coiled after hot rolling in the finishing roll scale at a temperature of 600.degree. The coiled hot-rolled strip was immediately cooled before it was fed to the cold strip for further processing.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Crystallography & Structural Chemistry (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Soft Magnetic Materials (AREA)
Description
Stahl | C | Si | Al | Mn |
A | 0,008 | 0,1 | 0,12 | 0,34 |
B | 0,008 | 0,33 | 0,25 | 0,81 |
C | 0,007 | 1,19 | 0,13 | 0,23 |
Blech | J2500 [T] | J5000 [T] | J10000 [T] | P1,0 [W/kg] | P1,5 [W/kg] |
B1 | 1,732 | 1,806 | 1,904 | 3,480 | 7,045 |
B2 | 1,722 | 1,799 | 1,898 | 3,177 | 6,382 |
B3 | 1,724 | 1,799 | 1,893 | 2,609 | 5,243 |
Blech | J2500 [T] | J5000 [T] | J10000 [T] | P1,0 [W/kg] | P1,5 [W/kg] |
B4 | 1,671 | 1,748 | 1,845 | 2,660 | 5,413 |
Claims (17)
- Verfahren zum Herstellen von nicht kornorientiertem Elektroblech, bei dem aus einem Vormaterial, wie gegossenen Brammen, Bändern, Vorbändern oder Dünnbrammen, das aus einem Stahl mit in Gewichts-%
C: 0,001 - 0,05 %
Si: 0,7 - 1,5 %
Al: ≤ 0,4 %
mit Si + 2Al ≤ 1,7 %
Mn: 0,1 - 1,2 %
gegebenenfalls bis insgesamt 1,5 % an Legierungszusätzen aus der Gruppe P, Sn, Sb, Zr, V, Ti, N, Ni, Co, Nb und/oder B, und
als Rest Eisen sowie üblichen Verunreinigungen
hergestellt ist, ein Warmband erzeugt wird, indem das Vormaterial direkt aus der Gießhitze oder nach einem vorhergehenden Wiedererwärmen auf eine mindestens 1000 °C und höchstens 1180 °C betragende Wiedererwärmungstemperatur in mehreren Umformstichen warmgewalzt und anschließend gehaspelt wird, wobei während des Warmwalzens mindestens der erste Umformstich im Austenitgebiet und anschließend mit einer Gesamtformänderung εh von mindestens 45 % ein oder mehrere Umformstiche im Ferritgebiet durchgeführt werden. - Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß das Warmband nach der Umformung im Austenitgebiet so stark abgekühlt wird, daß die Ferritumwandlung vor der darauffolgend durchgeführten Umformung im wesentlichen abgeschlossen ist.
- Verfahren nach Anspruch 2, dadurch gekennzeichnet, daß die während des Walzens im Ferritgebiet erreichte Gesamtformänderung εh mindestens 50 % beträgt.
- Verfahren nach einem der voranstehenden Anspüche, dadurch gekennzeichnet, daß das Warmband nach dem mindestens einen Umformstich im Austenitgebiet mindestens einen Umformstich im Zweiphasenmischgebiet Austenit / Ferrit, während dessen ein Gesamtumformgrad εh von höchstens 30 % erreicht wird, durchläuft und daß während des mindestens einen, anschließend im Ferritgebiet durchgeführten Umformstichs ein Gesamtumformgrad εh von mindestens 45 % erreicht wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß die Haspeltemperatur mindestens 700 °C beträgt.
- Verfahren nach Anspruch 5, dadurch gekennzeichnet, daß das gehaspelte Warmband aus der Coilhitze einer direkten Glühung unterzogen wird und daß die Glühzeit bei einer Glühtemperatur oberhalb 700 °C mindestens 15 Minuten beträgt.
- Verfahren nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Haspeltemperatur weniger als 600 °C, insbesondere weniger als 550 °C, beträgt.
- Verfahren nach Anspruch 7, dadurch gekennzeichnet, daß das Warmband in unmittelbarem Anschluß an das Haspeln im Coil beschleunigt abgekühlt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß während des Warmwalzens im Ferritgebiet mindestens ein Umformstich mit Schmierung durchgeführt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmband nach dem Haspeln bei einer Glühtemperatur von mindestens 740 °C geglüht wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß das Glühen des zu einem Coil gehaspelten Warmbands im Haubenofen durchgeführt wird.
- Verfahren nach Anspruch 10, dadurch gekennzeichnet, daß das Glühen im Durchlaufofen durchgeführt wird.
- Verfahren nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, daß das Warmband ein- oder mehrstufig auf eine Enddicke kaltgewalzt wird.
- Verfahren nach Anspruch 13, dadurch gekennzeichnet, daß das Kaltwalzen mehrstufig durchgeführt wird und daß im Anschluß an mindestens eine der Kaltwalzstufen ein Zwischenglühen erfolgt.
- Verfahren nach einem der Ansprüche 13 oder 14, dadurch gekennzeichnet, daß das Kaltband im Anschluß an das Kaltwalzen bei einer Glühtemperatur > 740 °C schlußgeglüht wird.
- Verfahren nach den Ansprüchen 14 und 15, dadurch gekennzeichnet, daß das Kaltband nach dem Kaltwalzen in einem Haubenoder Durchlaufglühofen bei Glühtemperaturen > 650 °C rekristallisierend zu einem nicht schlußgeglühten Elektroband geglüht und im Anschluß daran gerichtet und nachgewalzt wird.
- Verfahren nach einem der Ansprüche 15 oder 16, dadurch gekennzeichnet, daß die Glühung in einer entkohlenden Atmosphäre durchgeführt wird.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SI200030173T SI1194599T1 (en) | 1999-07-05 | 2000-04-29 | Method for producing non-grain oriented electric sheet steel |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19930518 | 1999-07-05 | ||
DE19930518A DE19930518C1 (de) | 1999-07-05 | 1999-07-05 | Verfahren zum Herstellen von nicht kornorientiertem Elektroblech |
PCT/EP2000/003901 WO2001002611A1 (de) | 1999-07-05 | 2000-04-29 | Verfahren zum herstellen von nicht kornorientiertem elektroblech |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1194599A1 EP1194599A1 (de) | 2002-04-10 |
EP1194599B1 true EP1194599B1 (de) | 2003-07-16 |
Family
ID=7913402
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00920746A Expired - Lifetime EP1194599B1 (de) | 1999-07-05 | 2000-04-29 | Verfahren zum herstellen von nicht kornorientiertem elektroblech |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1194599B1 (de) |
AT (1) | ATE245203T1 (de) |
AU (1) | AU4120600A (de) |
DE (2) | DE19930518C1 (de) |
ES (1) | ES2202104T3 (de) |
WO (1) | WO2001002611A1 (de) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1415008A1 (de) * | 2001-08-11 | 2004-05-06 | ThyssenKrupp Stahl AG | Nichtkornorientiertes elektroblech oder -band und verfahren zu seiner herstellung |
DE10150642A1 (de) * | 2001-10-12 | 2003-04-30 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen von nicht kornorientierten Elektroblechen |
KR100862616B1 (ko) * | 2007-04-17 | 2008-10-09 | 한국전자통신연구원 | 인덱스 정보를 이용한 오디오 핑거프린트 검색 시스템 및방법 |
DE102013019787A1 (de) * | 2013-11-27 | 2015-05-28 | Valeo Schalter Und Sensoren Gmbh | Verfahren zum Herstellen eines ferromagnetischen Bauteils für einen Drehmomentsensor einer Fahrzeuglenkwelle und Drehmomentsensor |
DE102019216240A1 (de) * | 2019-10-22 | 2021-04-22 | Muhr Und Bender Kg | Verfahren und Vorrichtung zur Herstellung eines nicht-kornorientierten Elektrobands |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0723509B2 (ja) * | 1988-10-13 | 1995-03-15 | 新日本製鐵株式会社 | 優れた鉄損特性を有する無方向性電磁鋼板の製造方法 |
JPH036326A (ja) * | 1989-06-01 | 1991-01-11 | Kobe Steel Ltd | 磁気特性の優れた無方向性電磁鋼板の製造方法 |
BE1006599A6 (fr) * | 1993-01-29 | 1994-10-25 | Centre Rech Metallurgique | Procede de fabrication d'une tole d'acier laminee a chaud presentant des proprietes magnetiques elevees. |
BE1007927A3 (fr) * | 1994-02-07 | 1995-11-21 | Cockerill Rech & Dev | Procede de production d'acier doux. |
EP0779369B1 (de) * | 1994-06-24 | 2000-08-23 | Nippon Steel Corporation | Verfahren zur herstellung von elektrischen nicht orientierten stahlplatten mit hoher magnetischer flussdichte und geringem eisenverlust |
JP3319898B2 (ja) * | 1994-12-20 | 2002-09-03 | 川崎製鉄株式会社 | コイル内で磁気特性の均一な無方向性電磁鋼帯の製造方法 |
DE19807122C2 (de) * | 1998-02-20 | 2000-03-23 | Thyssenkrupp Stahl Ag | Verfahren zur Herstellung von nichtkornorientiertem Elektroblech |
-
1999
- 1999-07-05 DE DE19930518A patent/DE19930518C1/de not_active Expired - Fee Related
-
2000
- 2000-04-29 AT AT00920746T patent/ATE245203T1/de active
- 2000-04-29 ES ES00920746T patent/ES2202104T3/es not_active Expired - Lifetime
- 2000-04-29 WO PCT/EP2000/003901 patent/WO2001002611A1/de active IP Right Grant
- 2000-04-29 EP EP00920746A patent/EP1194599B1/de not_active Expired - Lifetime
- 2000-04-29 DE DE50002924T patent/DE50002924D1/de not_active Expired - Lifetime
- 2000-04-29 AU AU41206/00A patent/AU4120600A/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
ATE245203T1 (de) | 2003-08-15 |
WO2001002611A1 (de) | 2001-01-11 |
DE50002924D1 (de) | 2003-08-21 |
ES2202104T3 (es) | 2004-04-01 |
DE19930518C1 (de) | 2000-10-12 |
EP1194599A1 (de) | 2002-04-10 |
AU4120600A (en) | 2001-01-22 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE60306365T3 (de) | Verfahren zum kontinuierlichen giessen von nichtorientiertem elektrostahlband | |
EP0619376B1 (de) | Verfahren zur Herstellung von kornorientierten Elektroblechen mit verbesserten Ummagnetisierungsverlusten | |
EP1573075B1 (de) | Verfahren zum herstellen eines stahlprodukts | |
EP1194600B1 (de) | Verfahren zum herstellen von nichtkornorientiertem elektroblech | |
EP2612942B1 (de) | Nicht kornorientiertes Elektroband oder -blech, daraus hergestelltes Bauteil und Verfahren zur Erzeugung eines nicht kornorientierten Elektrobands oder -blechs | |
EP1263993B1 (de) | Verfahren zum herstellen von nichtkornorientiertem elektroblech | |
DE69518529T2 (de) | Verfahren zur herstellung von elektrischen nicht orientierten stahlplatten mit hoher magnetischer flussdichte und geringem eisenverlust | |
EP1056890B1 (de) | Verfahren zur herstellung von nichtkornorientiertem elektroblech | |
DE19930519C1 (de) | Verfahren zum Herstellen von nicht kornorientiertem Elektroblech | |
EP2840157B1 (de) | Nicht kornorientiertes Elektroband oder -blech und Verfahren zur Erzeugung eines nicht kornorientierten Elektrobands oder -blechs | |
DE68916980T2 (de) | Verfahren zum Herstellen kornorientierter Elektrostahlbleche mit hoher Flussdichte. | |
DE69030781T3 (de) | Verfahren zur Herstellung kornorientierter Elektrostahlbleche mittels rascher Abschreckung und Erstarrung | |
DE10221793C1 (de) | Nichtkornorientiertes Elektroband oder -blech und Verfahren zu seiner Herstellung | |
DE3147584C2 (de) | Verfahren zur Herstellung von kornorientiertem Siliciumstahl in Band- oder Blechform | |
EP1440173B1 (de) | Für die herstellung von nichtkornorientiertem elektroblech bestimmtes, warmgewalztes stahlband und verfahren zu seiner herstellung | |
DE3220307C2 (de) | Verfahren zum Herstellen von kornorientiertem Siciliumstahlblech oder -band | |
EP1194599B1 (de) | Verfahren zum herstellen von nicht kornorientiertem elektroblech | |
DE69222964T2 (de) | Kornorientiertes Silizium-Stahlblech und dessen Herstellungsverfahren | |
EP1444372B1 (de) | Verfahren zur herstellung von nichtkornorientiertem elektroblech | |
WO2002048410A1 (de) | Verfahren zum herstellen von warmband oder -blech aus einem mikrolegierten stahl | |
DE10220282C1 (de) | Verfahren zum Herstellen von kaltgewalztem Stahlband mit Si-Gehalten von mindestens 3,2 Gew.-% für elektromagnetische Anwendungen | |
DE68921478T2 (de) | Verfahren zur herstellung nicht-orientierter elektrobleche mit ausgezeichneten magnetischen eigenschaften. | |
DE69023291T2 (de) | Verfahren zum Herstellen kornorientierter Elektrobleche aus Stangguss durch Warmwalzen. | |
EP1411140B1 (de) | Verfahren zum Herstellen eines besonders gut verformbaren kaltgewalzten Stahlbands oder -blechs | |
DE10139699C2 (de) | Nichtkornorientiertes Elektroblech oder -band und Verfahren zu seiner Herstellung |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 20020108 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Free format text: AL;LT;LV;MK;RO;SI PAYMENT 20020108 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: THYSSENKRUPP STAHL AG |
|
17Q | First examination report despatched |
Effective date: 20020405 |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAH | Despatch of communication of intention to grant a patent |
Free format text: ORIGINAL CODE: EPIDOS IGRA |
|
GRAA | (expected) grant |
Free format text: ORIGINAL CODE: 0009210 |
|
AK | Designated contracting states |
Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
|
AX | Request for extension of the european patent |
Extension state: SI |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: IE Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030716 Ref country code: FI Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030716 Ref country code: CY Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20030716 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: FG4D Free format text: NOT ENGLISH |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: EP |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FG4D Free format text: GERMAN |
|
REF | Corresponds to: |
Ref document number: 50002924 Country of ref document: DE Date of ref document: 20030821 Kind code of ref document: P |
|
GBT | Gb: translation of ep patent filed (gb section 77(6)(a)/1977) | ||
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: DK Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031016 Ref country code: GR Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031016 |
|
REG | Reference to a national code |
Ref country code: SE Ref legal event code: TRGR |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: PT Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT Effective date: 20031216 |
|
LTIE | Lt: invalidation of european patent or patent extension |
Effective date: 20030716 |
|
REG | Reference to a national code |
Ref country code: IE Ref legal event code: FD4D |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FG2A Ref document number: 2202104 Country of ref document: ES Kind code of ref document: T3 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LU Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040429 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: LI Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 Ref country code: CH Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 Ref country code: MC Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES Effective date: 20040430 |
|
ET | Fr: translation filed | ||
PLBE | No opposition filed within time limit |
Free format text: ORIGINAL CODE: 0009261 |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT |
|
26N | No opposition filed |
Effective date: 20040419 |
|
REG | Reference to a national code |
Ref country code: CH Ref legal event code: PL |
|
REG | Reference to a national code |
Ref country code: SI Ref legal event code: IF |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 17 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 18 |
|
REG | Reference to a national code |
Ref country code: FR Ref legal event code: PLFP Year of fee payment: 19 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: NL Payment date: 20190423 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: DE Payment date: 20190418 Year of fee payment: 20 Ref country code: IT Payment date: 20190419 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: SE Payment date: 20190418 Year of fee payment: 20 Ref country code: FR Payment date: 20190418 Year of fee payment: 20 Ref country code: BE Payment date: 20190424 Year of fee payment: 20 |
|
PGFP | Annual fee paid to national office [announced via postgrant information from national office to epo] |
Ref country code: ES Payment date: 20190822 Year of fee payment: 20 Ref country code: GB Payment date: 20190418 Year of fee payment: 20 Ref country code: AT Payment date: 20190424 Year of fee payment: 20 |
|
REG | Reference to a national code |
Ref country code: NL Ref legal event code: MK Effective date: 20200428 |
|
REG | Reference to a national code |
Ref country code: GB Ref legal event code: PE20 Expiry date: 20200428 |
|
REG | Reference to a national code |
Ref country code: BE Ref legal event code: MK Effective date: 20200429 |
|
REG | Reference to a national code |
Ref country code: AT Ref legal event code: MK07 Ref document number: 245203 Country of ref document: AT Kind code of ref document: T Effective date: 20200429 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: GB Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20200428 |
|
REG | Reference to a national code |
Ref country code: ES Ref legal event code: FD2A Effective date: 20220128 |
|
PG25 | Lapsed in a contracting state [announced via postgrant information from national office to epo] |
Ref country code: ES Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION Effective date: 20200430 |