DK2880190T3 - Fremgangsmåde til fremstilling af kornorienteret silicium stålplade, kornorienteret elektrisk stålplade og anvendelse deraf - Google Patents

Fremgangsmåde til fremstilling af kornorienteret silicium stålplade, kornorienteret elektrisk stålplade og anvendelse deraf Download PDF

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DK2880190T3
DK2880190T3 DK13773324.2T DK13773324T DK2880190T3 DK 2880190 T3 DK2880190 T3 DK 2880190T3 DK 13773324 T DK13773324 T DK 13773324T DK 2880190 T3 DK2880190 T3 DK 2880190T3
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Ban Gabor
De Putte Tom Van
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Arcelormittal
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/14766—Fe-Si based alloys
    • H01F1/14775—Fe-Si based alloys in the form of sheets
    • H01F1/14783—Fe-Si based alloys in the form of sheets with insulating coating
    • 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
    • C21D8/1205—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
    • 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
    • C21D8/1261—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
    • C21D8/1244—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
    • 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
    • C21D8/1277—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of articles with special electromagnetic properties involving a particular surface treatment
    • C21D8/1283—Application of a separating or insulating coating
    • 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
    • C21D9/46—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for sheet metals
    • 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
    • C22C38/001—Ferrous alloys, e.g. steel alloys containing N
    • 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
    • C22C38/008—Ferrous alloys, e.g. steel alloys containing tin
    • 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
    • C22C38/04—Ferrous alloys, e.g. steel alloys containing manganese
    • 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
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/12—Ferrous alloys, e.g. steel alloys containing tungsten, tantalum, molybdenum, vanadium, or niobium
    • 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
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • 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
    • C22C38/16—Ferrous alloys, e.g. steel alloys containing copper
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/24—Magnetic cores
    • H01F27/245—Magnetic cores made from sheets, e.g. grain-oriented
    • 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
    • C21D2201/00—Treatment for obtaining particular effects
    • C21D2201/05—Grain orientation
    • 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
    • C21D2211/004—Dispersions; Precipitations

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  • Dispersion Chemistry (AREA)
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Claims (11)

1. Fremgangsmåde til fremstilling af koldvalset Fe-Si-stålplade omfattende de på hinanden følgende trin, der består i: - at smelte en stålsammensætning, der i vægtprocent indeholder: 2,8 < Si <4 0,4 <Cu <0,6 0,05 < Mn < 0,4 0,001 < Al <0,04 0,025 < C <0,05 0,005 < N <0,02 0,005 <Sn <0,03 S <0,015 og eventuelt Ti, Nb, V eller B i en kumuleret mængde under 0,02, hvor de følgende forhold er respekteret: Mn/Sn < 40 2,0 < C/N £ 5,0 Al/N < 1,20 og resten er Fe og andre uundgåelige urenheder - og at fremstille en plade med en tykkelse på ikke mere end 80 millimeter, således at pladeoverfladen, efter hærdningen, ikke afkøles til under 850 °C i mere end 5 minutter, - at genopvarme pladen til en temperatur på mellem 1080 °C til 1200 °C i mindst 20 minutter, - efterfølgende at varmvalse pladen med en første tykkelsesreduktion, der finder sted, mens pladetemperaturen er over 1060 °C, og den sidste tykkelsesreduktion finder sted ved en finish-valsetemperatur på over 950 °C for at opnå et varmvalset bånd, - at nedkøle det varmvalsede bånd til en temperatur, der ligger i området på mellem 500 °C og 600 °C inden for mindre end 10 sekunder, derefter - at vikle det varmvalsede bånd, hvor det varmvalsede bånd Fe-Si indeholder mindre end 60 % syreopløseligt Al i udfældet form, hvor præcipitatet derefter overhovedet ikke indeholder AIN-præcipitater i størrelsen mellem 5 nm og 150 nm, - at rengøre dens overflade, derefter - at udføre et første koldvalsningstrin for det varmvalsede bånd med et kold-valsningsforhold på mindst 60 % uden forudgående at have udglødet det varmvalsede bånd, derefter - at udføre et primært rekrystallisations-udglødningstrin ved en temperatur Ti på mellem 780 °C og 920 °C, hvor stålet holdes på Ti i et minimumstidsrum ti på 2 minutter i en atmosfære, der er sammensat af en blanding af hydrogen, nitrogen og vanddamp, derefter at afkøle til rumtemperatur for at opnå et stålcarbonindhold på under 0,004 % og en primær gennemsnitlig kornstørrelse på under 16 mikrometer efter afkølingen, derefter - at udføre et andet koldvalsningstrin med et koldvalsningsforhold på mindst 50 % for at opnå den endelige tykkelse af den koldvalsede stålplade, derefter - af afsætte et lag af en isolerende separator på overfladen af den koldvalsede stålplade, derefter - den isolerede koldvalsede stålplade gennemgår en sekundær udglødning i en atmosfære, der indeholder hydrogen og nitrogen, hvor stålopvarmningsraten V1 er under 15 °C pr. time mellem 600 °C og 1150 °C, hvor pladetemperaturen holdes på en minimumtemperatur T2 på 1150 °C i et minimumstidsrum t2 på 600 minutter, hvor den samlede udglødningstid er over 120 timer for at reducere indholdet for hver af svovl og nitrogen under 0,001 % og for at få en sekundær gennemsnitlig kornstørrelse på under 15 millimeter, derefter - at udføre en langsom nedkøling til rumtemperatur.
2. Fremgangsmåde til fremstilling af koldvalset Fe-Si-stålplade ifølge krav 1, hvor svovlindholdet er lavere end 0,010 %.
3. Fremgangsmåde til fremstilling af koldvalset Fe-Si-stålplade ifølge krav 1 eller 2, hvor carbonindholdet er mellem 0,025 % og 0,032 %.
4. Fremgangsmåde til fremstilling af koldvalset Fe-Si-stålplade ifølge et af kravene 1 til 3, hvor pladen støbes med en minimumshastighed på 4,0 meter pr. minut.
5. Fremgangsmåde til fremstilling af koldvalset Fe-Si-stålplade ifølge et af kravene 1 til 4, hvor Finish Rolling-temperaturen er mindst 980 °C.
6. Fremgangsmåde til fremstilling ifølge et af kravene 1 til 5, hvor, den kornorienterede stålplade er coatet med isolerings- og spændingscoating baseret på kolloidal siliciumemulsion.
7. Fremgangsmåde til fremstilling ifølge et af kravene 1 til 6, hvor, efter den primære rekrystallisationsudglødning, stålets carbonindhold er under 0,0025 0/ /O.
8. Fremgangsmåde til fremstilling ifølge et af kravene 1 til 7, hvor, efter den primære udglødning, den primære gennemsnitlige kornstørrelse er under 10 mikrometer.
9. Fremgangsmåde til fremstilling ifølge et af kravene 1 til 8, hvor, efter den sekundære udglødning, den sekundære gennemsnitlige kornstørrelse er under 10 mikrometer.
10. Kornorienteret stålplade, der er tilvejebragt ved fremgangsmåden ifølge et af kravene 1 til 9, der udviser en induktionsværdi ved 800A/m over 1,870 Tesia og et kerneydelsestab lavere end 1,3 W/kg ved en specifik magnetisk induktion på 1,7 Tesla (T).
11. Effekttransformer omfattende en del fremstillet af en kornorienteret stålplade ifølge krav 10.
DK13773324.2T 2012-07-31 2013-07-30 Fremgangsmåde til fremstilling af kornorienteret silicium stålplade, kornorienteret elektrisk stålplade og anvendelse deraf DK2880190T3 (da)

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PCT/IB2012/001475 WO2014020369A1 (en) 2012-07-31 2012-07-31 Method of production of grain-oriented silicon steel sheet grain oriented electrical steel sheet and use thereof
PCT/IB2013/001657 WO2014020406A1 (en) 2012-07-31 2013-07-30 Method of production of grain-oriented silicon steel sheet grain oriented electrical steel sheet and use thereof

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US (1) US9831020B2 (da)
EP (1) EP2880190B1 (da)
JP (3) JP6294319B2 (da)
KR (1) KR101575633B1 (da)
CN (1) CN104884642B (da)
BR (1) BR112015002254B1 (da)
CA (1) CA2880724C (da)
DK (1) DK2880190T3 (da)
EA (1) EA028436B1 (da)
ES (1) ES2664326T3 (da)
HR (1) HRP20180388T1 (da)
HU (1) HUE038725T2 (da)
IN (1) IN2015DN00804A (da)
LT (1) LT2880190T (da)
NO (1) NO2880190T3 (da)
PL (1) PL2880190T3 (da)
PT (1) PT2880190T (da)
RS (1) RS57048B1 (da)
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WO (2) WO2014020369A1 (da)

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