EP1440173B1 - Für die herstellung von nichtkornorientiertem elektroblech bestimmtes, warmgewalztes stahlband und verfahren zu seiner herstellung - Google Patents
Für die herstellung von nichtkornorientiertem elektroblech bestimmtes, warmgewalztes stahlband und verfahren zu seiner herstellung Download PDFInfo
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- EP1440173B1 EP1440173B1 EP02779503A EP02779503A EP1440173B1 EP 1440173 B1 EP1440173 B1 EP 1440173B1 EP 02779503 A EP02779503 A EP 02779503A EP 02779503 A EP02779503 A EP 02779503A EP 1440173 B1 EP1440173 B1 EP 1440173B1
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- EP
- European Patent Office
- Prior art keywords
- hot
- rolling
- strip
- intensity
- hot strip
- 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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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 29
- 239000010959 steel Substances 0.000 title claims abstract description 29
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000000034 method Methods 0.000 title claims description 11
- 239000000835 fiber Substances 0.000 claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052742 iron Inorganic materials 0.000 claims abstract description 5
- 239000012535 impurity Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 238000005098 hot rolling Methods 0.000 claims description 26
- 238000005096 rolling process Methods 0.000 claims description 25
- 238000000137 annealing Methods 0.000 claims description 16
- 238000005266 casting Methods 0.000 claims description 15
- 238000005097 cold rolling Methods 0.000 claims description 11
- 238000005461 lubrication Methods 0.000 claims description 5
- 238000005554 pickling Methods 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910000859 α-Fe Inorganic materials 0.000 claims description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 claims description 2
- 239000011574 phosphorus Substances 0.000 claims description 2
- 238000005315 distribution function Methods 0.000 abstract description 7
- 229910000976 Electrical steel Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 238000003303 reheating Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 239000013078 crystal Substances 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000029142 excretion Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000819 phase cycle Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 238000004382 potting Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000005204 segregation Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Images
Classifications
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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
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
-
- 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
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C38/00—Ferrous alloys, e.g. steel alloys
- C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
-
- 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
- C21D2211/00—Microstructure comprising significant phases
- C21D2211/005—Ferrite
-
- 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 for the production of Electrical sheet metal hot-rolled steel strip and a Process for its preparation.
- non-grain oriented electrical sheet is in this context a steel sheet or a Steel band understood, which is independent of his Texture below those mentioned in DIN 46 400 part 1 or 4 Sheet metal falls and its loss anisotropy in DIN 46 400 part 1 limits.
- the terms “tin” and “band” are synonymous here used.
- Hot strip thicknesses of ⁇ 1.5 mm can be achieved, see eg. B. JP 2001 123225 A2.
- the invention was based on the object, a cost producible hot strip with partially solidified Microstructure with a thickness of at most 1.8 mm too realize which is due to these characteristics in a special way for the production of high quality Electric sheets is suitable.
- the invention is based on the recognition that, when choosing a suitable preparation path, a hot strip can be made available, which already has a microstructure in the hot rolled state, which can be produced only by cold rolling at high degrees of deformation in conventional manufacturing.
- assembled and procured hot strip at a strip thickness of at most 1.8 mm has a partially solidified microstructure.
- This microstructure is characterized by high intensities of the ⁇ -fiber in the range of angles up to 60 ° for specific layers, ie in an angular range in which in conventional hot strips of comparable composition usually no appreciable intensities for these layers can be determined.
- Characteristic are the high intensities of the specific layers (112) ⁇ 110> and (111) ⁇ 110>, wherein for the ratios of the intensities I 112 of the layer (112) ⁇ 110> to the intensity I 001 of the layer (001) ⁇ 110 > a value> 0.4 or the intensity I 111 of the layer (111) ⁇ 110> to the intensity I 001 of the layer (001) ⁇ 110> gives a value> 0.2.
- the hot strip according to the invention can be characterized in excellent Process to cold-rolled NO electrical steel whose final thickness is typically 0.35 mm to 0.75 mm, in particular 0.2 mm, 0.35 mm, 0.50 mm or 0.65 mm.
- Conventional hot strips differ from according to the invention characterized in that noticeable in them Intensities only in the range of up to 25 ° (-30 °) occur while for the components (112) ⁇ 110> and (111) ⁇ 110> no higher intensities detectable are.
- the conventional hot tapes lies typically an intensity maximum of the ⁇ -fiber structure at 0 °, from which the intensity with increasing angle decreases. This intensity distribution
- the ⁇ -fiber corresponds to a solidified structure.
- First by the cold rolling process is in such steel strips a softening of the structure by a Recrystallization in the subsequent annealing reached. For this purpose, overall degrees of deformation of more than 65% are required, on the one hand a certain minimum thickness cold-rolled hot strip and on the other hand a considerable rolling work during the cold forming of the strip provide.
- hot strip according to the invention is so procure that the intensities of the component (112) ⁇ 110> and the intensities of the layer (111) ⁇ 110> high are.
- hot strip according to the invention has a special low final thickness.
- the invention Hot strip creates so much more favorable conditions for the subsequent processing than this conventional Hot strips can afford. That's how it works Hot strip according to the invention starting from its low Thickness of at most 1.8 mm at minimized Total transformation to a non-grain oriented Cold-forming electrical sheet, its properties at least equal to the properties conventional produced NO-electric sheets is.
- the orientation distribution function describes the relative position of the crystal coordinate system and the sample coordinate system.
- the orientation distribution function assigns an orientation density or intensity to each point in space. Since a representation of the orientation distribution function is very complicated and not very clear, a simplified description with the aid of fibers is chosen.
- the relevant fibers for steels are: a-fiber, ⁇ -fiber, ⁇ -fiber, ⁇ -fiber, ⁇ -fiber, ⁇ -fiber, ⁇ -fiber
- the a fiber considered here is the ⁇ 110> direction parallel to the rolling direction; she passes between the layers (001) ⁇ 110> and (110) ⁇ 110>.
- a particularly advantageous for further processing Entfest TrentsSullivan has inventive hot strip then, if its strip thickness is at most 1.2 mm.
- the ratio I 112 / I 001 > 0.75 formed from the intensity I 112 of the layer (112) ⁇ 110> to the intensity I 001 of the layer (001) ⁇ 110> is regularly the intensity I 111 of the position (111) ⁇ 110> to the intensity I 001 of the position (001) ⁇ 110> of the ⁇ -fiber ratio I 111 / I 001 > 0.4.
- Such entieries hot strip can be processed at very low degrees of deformation to NO electrical steel.
- Hot rolled strip according to the invention with hot strip thicknesses of ⁇ 1.8 mm can be manufactured in different ways; conventional hot strip mills with possibilities of Realization of above thicknesses, Casting rolling plants (casting of Thin slabs with subsequent in-line hot rolling), Thin strip casting machines with subsequent multi-stage casting Hot rolling of the thin strip.
- the invention at least one pass of hot rolling at temperatures, where the hot strip is an austenitic structure and several subsequent stitches of the Hot rolling performed at temperatures in which the Hot strip has a ferritic structure.
- the hot strip is an austenitic structure and several subsequent stitches of the Hot rolling performed at temperatures in which the Hot strip has a ferritic structure.
- the final rolling temperature is Hot rolling less than 850 ° C.
- one of the last forming passes rolled with lubrication.
- hot rolling with lubrication occur on the one hand lower shear deformations, so that the rolled strip as a result, a more homogeneous structure across the cross section receives.
- the lubrication reduces so that above the respective Walzstich a higher thickness decrease is possible. Therefore It can, depending on the desired properties of the too generating electric sheet, be advantageous if all occurring in the ferrite Umformstiche with a rolling lubrication be performed.
- Hot rolled strips according to the invention can be used in particular reliably reproducible work results first by an inventively melted composite steel and then this steel is poured into thin slabs, which then hot-rolled continuously ("in-line") to hot strip become. It is during the hot rolling achieved overall degree of deformation preferably at least 90%, the hot rolling usually in several passes will be carried out.
- the the known casting rolls own continuous Sequence of potting steel to thin slabs and hot rolling the thin slabs to hot strip also allowed in the production of inventive hot strips the Saving of work steps, such as reheating slabs and roughing.
- inventive hot strips themselves affects the material condition in the different Production phases. This is partly different significantly from that in the conventional generation of Hot strip reached, with a reheating the cooled slab is started.
- the macro segregations as well as the solution and Excretion state the inventively generated Hot strips differ from conventionally produced.
- the forming process takes place during in-line casting rolling during hot rolling at favorable thermal Conditions.
- the rolling passes with higher Forming degrees applied and the forming conditions specifically used for the control of microstructure development become.
- the phosphorus content less than 0.08 wt% limited to sufficient G manigenticianen to achieve.
- the molten steel was cast into a slab which was then conventionally cooled, reheated, pre-rolled and hot-rolled to a final thickness of 2.5 mm.
- the hot-rolled strip Wb V1 thus obtained had an orientation density of the ⁇ -fiber of at least 4 determined in the band center for an orientation angle ⁇ of 0 ° to 20 °, while the orientation density for angles ⁇ of more than 20 ° was regularly less than 3.
- the value of the ratio I 112 / I 001 of the intensity I 112 of the layer (112) ⁇ 110> to the intensity I 110 of the layer (001) ⁇ 110> of the ⁇ -fiber was therefore just under 0.1 as the value of the ratio I. 111 / I 001 of the intensity I 111 of the component (111) ⁇ 110> to the intensity I 110 of the component (001) ⁇ 110>.
- the high density in the range of small angles and the low density in the range of large angles prove that the hot strip Wb V1 has been in a solidified state in which it must first be subjected to a complex cold rolling and aftertreatment in order to be used as NO electric sheet to be able to.
- the same steel was first cast into a thin-slab in a casting-rolling plant, which was then hot-rolled in-line in several passes to a hot-strip thickness of 3 mm.
- the hot strip Wb V2 thus obtained, like the hot strip Wb V1 for an orientation angle ⁇ of 0 ° to 20 °, had an orientation density of the ⁇ -fiber of at least 4 determined in the center of the strip, while the orientation density for angles ⁇ of more than 20 ° was regular was significantly less than 3.
- the value of the ratio I 112 / I 001 of the intensity I 112 of the layer (112) ⁇ 110> to the intensity I 110 of the layer (001) ⁇ 110> of the ⁇ -fiber was 0.2, while the value of the ratio I 111 / I 001 the intensity I 111 of the position (111) ⁇ 110> to the intensity I 110 of the position (001) ⁇ 110> reached only 0.06.
- the hot strip Wb V2 has been in a solidified state in which it must first undergo an expensive cold rolling and aftertreatment, to use it as a NO electrical sheet.
- the hot strip Wb E according to the invention has also been produced from the same steel as the hot strip Wb V1 produced for comparison.
- the steel in question has also been cast in a casting-rolling plant to a thin slab, which was then also hot rolled "in-line" in several passes.
- the final thickness of the hot-rolled strip was only 1.04 mm.
- the hot-rolled strip Wb E thus obtained had an orientation density of the ⁇ -fiber of at least 4 determined in the center of the strip for all orientation angles ⁇ in the range from 0 ° to 60 °. Only in the angular range of more than 60 ° did the orientation density decrease below 3.
- the value of the ratio I 112 / I 001 of the intensity I 112 of the position (112) ⁇ 110> to the intensity I 110 of the component (001) ⁇ 110> of the ⁇ - Fiber was at a high level, namely at 0.81.
- the value of the ratio I 111 / I 001 of the intensity I 111 of the layer (111) ⁇ 110> to the intensity I 110 of the layer (001) ⁇ 110> reached a high level, namely 0.54.
- the high orientation densities up to an angle of 60 ° and the high intensities of components (112) ⁇ 110> and (111) ⁇ 110> prove that the inventive Hot strip is located in a partially partially solidified state.
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Metallurgy (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Manufacturing Of Steel Electrode Plates (AREA)
- Metal Rolling (AREA)
- Soft Magnetic Materials (AREA)
- Inorganic Fibers (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Electroplating Methods And Accessories (AREA)
Description
- Erschmelzen des Stahls,
- Vergießen des Stahls zu Brammen,
- soweit erforderlich, Wiedererwärmen der Brammen,
- Einsetzen der Brammen in einer Warmwalzstraße,
- Vorwalzen der Brammen,
- Fertigwarmwalzen der Brammen zu einem Warmband, dessen Enddicke zwischen 1,8 mm und 5 mm, typischerweise zwischen 2 mm und 3 mm, liegt,
- Glühen und Beizen des Warmbands, wobei diese Warmbandbehandlungen als kombiniertes Glühbeizen ausgeführt werden können,
- Kaltwalzen auf Enddicke im Bereich von 0,75 mm bis 0,35 mm oder kleiner oder soweit erforderlich mehrstufig mit zwischengeschalteter Glühung erfolgendes Kaltwalzen des Warmbands auf Enddicke, und
- Schlußglühen solcher Kaltbänder in Enddicke, die mit einem mindestens 65 % betragenden Gesamtumformgrad kaltgewalzt worden sind, oder
- Glühen und anschließendes Nachwalzen, mit einem höchstens 20 % betragenden Gesamtumformgrad.
- welches folgende Zusammensetzung (in Gew.-%) aufweist:
- C: < 0,02 %,
- Mn: ≤ 1, 2 %,
- Si:0,1 - 4,4 %,
- Al:0,1 - 4,4 %, wobei die aus dem Si-Gehalt und dem Doppelten des Al-Gehaltes gebildete Summe ([%Si] + 2x[%Al]) < 5 % ist,
- P: < 0,15 %
- Sn: ≤ 0,20 %,
- Sb: ≤ 0,20 %,
- dessen Banddicke höchstens 1,8 mm beträgt, und
- das eine teilentfestigte Gefügestruktur besitzt, die durch eine hohe Intensität der α-Faser (Faserdarstellung von Orientierungsverteilungsfunktionen) im Bereich bis 60° gekennzeichnet ist, wobei das aus der Intensität I112 der Lage (112)<110> zur Intensität I001 der Lage (001)<110> gebildete Verhältnis I112/I001 >0,4 und das aus der Intensität I111 der Lage (111)<110> zur Intensität I001 der Lage (001)<110> gebildete Verhältnis I112/I001 >0,2 ist.
a-Faser, γ-Faser, η-Faser, ζ-Faser, δ-Faser
Claims (10)
- Warmgewalztes Stahlband für die Weiterverarbeitung zu nichtkornorientiertem Elektroblechmit folgender Zusammensetzung (in Gew.-%)C: < 0,02 %,Mn: ≤ 1,2 %,Si: 0,1 - 4,4 %,Al: 0,1 - 4,4 %,P: < 0,15 %Sn: ≤ 0,20 %,Sb: ≤ 0,20 %,mit einer Banddicke, die höchstens 1,8 mm beträgt, undmit einer teilentfestigten Gefügestruktur, die durch eine hohe Intensität für die α-Faser im Bereich von 0° bis 60° gekennzeichnet ist, wobei das aus der Intensität I112 der Lage (112)<110> zur Intensität I001 der Lage (001)<110> gebildete Verhältnis I112/I001 > 0,4 und das aus der Intensität I111 der Lage (111)<110> zur Intensität I001 der Lage (001)<110> gebildete Verhältnis I111/I001 > 0,2 ist.
- Warmband nach Anspruch 1, dadurch gekennzeichnet, daß die Banddicke höchstens 1,2 mm beträgt und das aus der Intensität I112 der Lage (112)<110> zur Intensität I110 der Lage (001)<110> der α-Faser gebildete Verhältnis I112/I001 > 0,75 und das aus der Intensität I111 der Lage (111)<110> zur Intensität I001 der Lage (001) <110> der α-Faser gebildete Verhältnis I111/I001 > 0,4 ist.
- Warmband nach einem der voranstehenden Ansprüche,
dadurch gekennzeichnet, daß es bei einer ersten, hohen Temperatur eine ferritische, bei einer unter der ersten Temperatur liegenden zweiten Temperatur eine ferritisch /austenitische, bei einer unter der zweiten Temperatur liegenden dritten Temperatur eine austenitische, bei einer unter der dritten Temperatur liegenden vierten Temperatur eine austenitsch / ferritische und bei einer unter der vierten Temperatur liegenden fünften Temperatur wieder eine ferritische Gefügestruktur aufweist. - Verfahren zum Herstellen von gemäß einem der Ansprüche 1 bis 3 beschaffenen Warmband, umfassend folgende Arbeitsschritte:Erschmelzen des Stahls,Vergießen des Stahls zu Dünnbrammen,kontinuierlich in-line auf das Vergießen des Stahls folgendes, in mehreren Stichen durchgeführtes Warmwalzen der Dünnbrammen, wobei mindestens ein Stich des Warmwalzens bei Temperaturen, bei denen das Warmband eine austenitische Struktur aufweist, und mehrere darauffolgende Stiche des Warmwalzens bei Temperaturen durchgeführt werden, in denen das Warmband eine ferritische Struktur besitzt, und die Endwalztemperatur beim Warmwalzen weniger als 850 °C beträgt.
- Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß der während des Warmwalzens erzielte Gesamtumformgrad mindestens 90 % beträgt.
- Verfahren zum Herstellen von gemäß einem der Ansprüche 1 bis 3 beschaffenem Warmband, umfassend folgende Arbeitsschritte:Erschmelzen des Stahls,Vergießen des Stahls zu einem Dünnband,kontinuierlich in-line auf das Vergießen des Stahls folgendes Warmwalzen in mehreren Stichen,
- Verfahren nach einem der Ansprüche 4 bis 6,
dadurch gekennzeichnet, daß der Phosphor-Gehalt des Warmbands < 0,08 Gew.-% beträgt. - Verfahren nach einem der Ansprüche 4 bis 7,
dadurch gekennzeichnet, daß während des Walzens im Ferritgebiet mindestens der letzte Walzstich mit Schmierung durchgeführt wird. - Verfahren zur Herstellung von nichtkornorientiertem Elektroblech aus einem gemäß einem der Ansprüche 1 bis 3 beschaffenen und nach einem der Ansprüche 4 bis 12 hergestellten Warmband, umfassend folgende Arbeitsschritte:Beizen oder Glühbeizen des Warmbands,Kaltwalzen des Warmbands Zwischenglühen des Kaltbands,Schlußglühen oderGlühen mit nachfolgender Nachverformung mit einem Gesamtumformgrad kleiner als 20 %.
- Verfahren nach Anspruch 9, dadurch gekennzeichnet, daß das Kaltwalzen mindestens zweistufig mit einer Zwischenglühung durchgeführt wird.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10153234A DE10153234A1 (de) | 2001-10-31 | 2001-10-31 | Für die Herstellung von nichtkornorientiertem Elektroblech bestimmtes, warmgewalztes Stahlband und Verfahren zu seiner Herstellung |
DE10153234 | 2001-10-31 | ||
PCT/EP2002/011822 WO2003038135A1 (de) | 2001-10-31 | 2002-10-23 | Für die herstellung von nichtkornorientiertem elektroblech bestimmtes, warmgewalztes stahlband und verfahren zu seiner herstellung |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1440173A1 EP1440173A1 (de) | 2004-07-28 |
EP1440173B1 true EP1440173B1 (de) | 2005-10-05 |
Family
ID=7704028
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP02779503A Expired - Lifetime EP1440173B1 (de) | 2001-10-31 | 2002-10-23 | Für die herstellung von nichtkornorientiertem elektroblech bestimmtes, warmgewalztes stahlband und verfahren zu seiner herstellung |
Country Status (10)
Country | Link |
---|---|
US (1) | US7658807B2 (de) |
EP (1) | EP1440173B1 (de) |
JP (1) | JP2005507458A (de) |
KR (1) | KR100951462B1 (de) |
CN (1) | CN1302131C (de) |
AT (1) | ATE305983T1 (de) |
DE (2) | DE10153234A1 (de) |
ES (1) | ES2249622T3 (de) |
PL (1) | PL205577B1 (de) |
WO (1) | WO2003038135A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100215981A1 (en) * | 2009-02-20 | 2010-08-26 | Nucor Corporation | Hot rolled thin cast strip product and method for making the same |
DE102012002642B4 (de) | 2012-02-08 | 2013-08-14 | Salzgitter Flachstahl Gmbh | Warmband zur Herstellung eines Elektroblechs und Verfahren hierzu |
TWI504760B (zh) * | 2012-11-07 | 2015-10-21 | Jfe Steel Corp | 三件式罐用鋼板及其製造方法 |
CN107002160A (zh) | 2014-05-08 | 2017-08-01 | 材料开发中心股份公司 | 用于制备具有高冷轧压下度的晶粒非取向的电炉钢带材的方法 |
US11047018B2 (en) | 2016-07-29 | 2021-06-29 | Salzgitter Flachstahl Gmbh | Steel strip for producing a non-grain-oriented electrical steel, and method for producing such a steel strip |
KR101917468B1 (ko) * | 2016-12-23 | 2018-11-09 | 주식회사 포스코 | 박물 열연 전기강판 및 그 제조방법 |
KR102109240B1 (ko) * | 2017-12-24 | 2020-05-11 | 주식회사 포스코 | 무방향성 전기강판용 열연강판, 무방향성 전기강판 및 그 제조방법 |
KR102109241B1 (ko) * | 2017-12-26 | 2020-05-11 | 주식회사 포스코 | 형상 품질이 우수한 무방향성 전기강판 및 그 제조방법 |
KR102045653B1 (ko) * | 2017-12-26 | 2019-11-15 | 주식회사 포스코 | 재질과 두께의 편차가 작은 무방향성 전기강판 및 그 제조방법 |
WO2020078529A1 (de) * | 2018-10-15 | 2020-04-23 | Thyssenkrupp Steel Europe Ag | Verfahren zur herstellung eines no elektrobands mit zwischendicke |
WO2020094230A1 (de) | 2018-11-08 | 2020-05-14 | Thyssenkrupp Steel Europe Ag | Elektroband oder -blech für höherfrequente elektromotoranwendungen mit verbesserter polarisation und geringen ummagnetisierungsverlusten |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19930519C1 (de) * | 1999-07-05 | 2000-09-14 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen von nicht kornorientiertem Elektroblech |
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 |
KR100207834B1 (ko) * | 1994-06-24 | 1999-07-15 | 다나카 미노루 | 고 자속 밀도와 저 철손을 갖는 무방향성 전기강판의 제조방법 |
DE19710125A1 (de) * | 1997-03-13 | 1998-09-17 | Krupp Ag Hoesch Krupp | Verfahren zur Herstellung eines Bandstahles mit hoher Festigkeit und guter Umformbarkeit |
DE19807122C2 (de) * | 1998-02-20 | 2000-03-23 | Thyssenkrupp Stahl Ag | Verfahren zur Herstellung von nichtkornorientiertem Elektroblech |
DE19840788C2 (de) * | 1998-09-08 | 2000-10-05 | Thyssenkrupp Stahl Ag | Verfahren zur Erzeugung von kaltgewalzten Bändern oder Blechen |
DE19918484C2 (de) * | 1999-04-23 | 2002-04-04 | Ebg Elektromagnet Werkstoffe | Verfahren zum Herstellen 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 |
DE10015691C1 (de) * | 2000-03-16 | 2001-07-26 | Thyssenkrupp Stahl Ag | Verfahren zum Herstellen von nichtkornorientiertem Elektroblech |
US20040149355A1 (en) * | 2001-06-28 | 2004-08-05 | Masaaki Kohno | Nonoriented electromagnetic steel sheet |
US7011139B2 (en) * | 2002-05-08 | 2006-03-14 | Schoen Jerry W | Method of continuous casting non-oriented electrical steel strip |
-
2001
- 2001-10-31 DE DE10153234A patent/DE10153234A1/de not_active Withdrawn
-
2002
- 2002-10-23 PL PL369257A patent/PL205577B1/pl not_active IP Right Cessation
- 2002-10-23 US US10/493,522 patent/US7658807B2/en not_active Expired - Fee Related
- 2002-10-23 EP EP02779503A patent/EP1440173B1/de not_active Expired - Lifetime
- 2002-10-23 KR KR1020047006653A patent/KR100951462B1/ko not_active IP Right Cessation
- 2002-10-23 DE DE50204488T patent/DE50204488D1/de not_active Expired - Lifetime
- 2002-10-23 JP JP2003540399A patent/JP2005507458A/ja active Pending
- 2002-10-23 ES ES02779503T patent/ES2249622T3/es not_active Expired - Lifetime
- 2002-10-23 AT AT02779503T patent/ATE305983T1/de active
- 2002-10-23 CN CNB028215958A patent/CN1302131C/zh not_active Expired - Fee Related
- 2002-10-23 WO PCT/EP2002/011822 patent/WO2003038135A1/de active IP Right Grant
Also Published As
Publication number | Publication date |
---|---|
EP1440173A1 (de) | 2004-07-28 |
ATE305983T1 (de) | 2005-10-15 |
PL205577B1 (pl) | 2010-05-31 |
WO2003038135A1 (de) | 2003-05-08 |
ES2249622T3 (es) | 2006-04-01 |
DE10153234A1 (de) | 2003-05-22 |
CN1578842A (zh) | 2005-02-09 |
DE50204488D1 (de) | 2006-02-16 |
KR100951462B1 (ko) | 2010-04-07 |
US7658807B2 (en) | 2010-02-09 |
US20050067053A1 (en) | 2005-03-31 |
PL369257A1 (en) | 2005-04-18 |
CN1302131C (zh) | 2007-02-28 |
KR20050039725A (ko) | 2005-04-29 |
JP2005507458A (ja) | 2005-03-17 |
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