SI2880190T1 - Postopek proizvodnje silicijeve jeklene pločevine z orientiranimi zrni, električna jeklena pločevina z orientiranimi zrni in njena uporaba - Google Patents

Postopek proizvodnje silicijeve jeklene pločevine z orientiranimi zrni, električna jeklena pločevina z orientiranimi zrni in njena uporaba Download PDF

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SI2880190T1
SI2880190T1 SI201330978T SI201330978T SI2880190T1 SI 2880190 T1 SI2880190 T1 SI 2880190T1 SI 201330978 T SI201330978 T SI 201330978T SI 201330978 T SI201330978 T SI 201330978T SI 2880190 T1 SI2880190 T1 SI 2880190T1
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steel sheet
cold
temperature
rolled
steel
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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
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    • 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
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    • 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
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    • 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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Claims (11)

  1. Postopek proizvodnje silicijeve jeklene pločevine z orientiranimi zrni, električna jeklena pločevina z orientiranimi zrni in njena uporaba Patentni zahtevki
    1. Postopek proizvodnje hladno valjanje Fe-Si jeklene pločevine, ki obsega zaporedne stopnje, ki sestojijo iz: - taljenja jeklenega sestavka, ki vsebuje, v masnih odstotkih: 2,8 s Si s 4 0,4 ž Cu s 0,6 0,05 s Mn s 0,4 0,001 S Al S 0,04 0,025 žCž 0,05 0,005 SNS 0,02 0,005 s Sn ž 0,03 S <0,015 in po izbiri Ti, Nb, V ali B v skupni količini pod 0,02, pri čemer so upoštevana naslednja razmerja: Mn/Sn s 40 2,0 s C/N s 5,0 Al/N ž 1,20, in pri čemer so preostanek Fe in druge neizogibne nečistote; in proizvodnje brame, ki ima debelino ne več kot 80 mm, tako da se po strditvi površina navedene brame ne ohladi pod 850 °C za več kot 5 minut, ponovno segrevanje navedene brame do temperature med 1080 °C in 1200 °C za vsaj 20 minut, nato toplo valjanje navedene brame, pri čemer poteče prvo zmanjšanje debeline, medtem ko je temperatura navedene brame nad 1060 °C in poteče zadnje zmanjšanje debeline nad temperaturo dovršilnega valjanja 950 °C z namenom, da dobimo topel trak, ohlajanje navedenega toplega traku na temperaturo med 500 °C in 600 °C v manj kot 10 sekundah, nato navijanje toplega traku, kjer topel trak Fe-Si vsebuje manj kot 60 % kislinsko topnega Al v oborjeni obliki, pri čemer navedena oborina sploh ne vsebuje A1N oborin v velikostnem območju med 5 nm in 150 nm, nato čiščenje njegove površine, nato izvedbo prve stopnje hladnega valjanja toplega traku z razmerjem hladnega valjanja vsaj 60 %, ne da bi predhodno žarili navedeni topli trak, nato izvedbo stopnje primarnega rekristalizacijskega žaljenja pri temperaturi Ti med 780 °C in 920 °C, pri čemer se jeklo vzdržuje pri Ti za minimalen čas ti 2 minut v atmosferi, ki je sestavljena iz zmesi vodika, dušika in vodne pare, nato ohlajanje na sobno temperaturo, tako da po ohlajanju dobimo vsebnost ogljika v jeklu pod 0,004 % in primarno povprečno velikost zrn pod 16 pm, nato izvedbo druge stopnje hladnega valjanja z razmeijem hladnega valjanja vsaj 50 %, da dobimo končno debelino hladno valjane jeklene pločevine, nato depozicijo plasti izolacijskega separatorja na površini navedene hladno valjane jeklene pločevine, nato izvedbo sekundarnega žarjenja izolirane hladno valjane jeklene pločevine v atmosferi, ki vsebuje vodik in dušik, pri čemer je segrevalna hitrost VI pod 15 °C na uro med 600 °C in 1150 °C, pri čemer se temperatura pločevine vzdržuje na minimalni temperaturi T21150 °C za minimalni čas t2 600 minut, pri čemer je celokupni čas žaljenja nad 120 ur, tako da se zniža vsebnost vsakega od žvepla in dušika pod 0,001 % in da ima sekundarno povprečno velikost zrn pod 15 mm, nato izvedbo počasnega ohlajanja do sobne temperature.
  2. 2. Postopek proizvodnje hladno valjane Fe-Si jeklene pločevine po zahtevku 1, kjer je vsebnost žvepla nižja od 0,010 %.
  3. 3. Postopek proizvodnje hladno valjane Fe-Si jeklene pločevine po zahtevku 1 ali 2, kjer je vsebnost ogljika med 0,025 % in 0,032 %.
  4. 4. Postopek proizvodnje hladno valjane Fe-Si jeklene pločevine po katerem koli od zahtevkov 1 do 3, kjer se brama uliva z minimalno hitrostjo 4,0 metrov na minuto.
  5. 5. Postopek proizvodnje hladno valjane Fe-Si jeklene pločevine po katerem koli od zahtevkov 1 do 4, kjer je temperatura dovršilnega valjanja vsaj 980 °C.
  6. 6. Postopek proizvodnje po katerem koli od zahtevkov 1 do 5, kjer je jeklena pločevina z orientiranimi zrni prevlečena z izolacijsko in natezno oblogo na osnovi emulzije koloidnega silicijevega dioksida.
  7. 7. Postopek proizvodnje po katerem koli od zahtevkov 1 do 6, kjer je po primarnem rekristalizacijskem žaljenju vsebnost ogljika v jeklu pod 0,0025 %.
  8. 8. Postopek proizvodnje po katerem koli od zahtevkov 1 do 7, kjer je po primarnem žarjenju primarna povprečna velikost zrn pod 10 pm.
  9. 9. Postopek proizvodnje po katerem koli od zahtevkov 1 do 8, kjer je po sekundarnem žarjenju sekundama povprečna velikost zrn pod 10 mm.
  10. 10. Jeklena pločevina z orientiranimi zrni, dobljena s postopkom po katerem koli od zahtevkov 1 do 9, ki daje indukcijsko vrednosti pri 800A/m nad 1,870 Tesla in izgubo jedrne moči nižjo od 1,3 W/kg pri specifični magnetni indukciji 1,7 Tesla (T).
  11. 11. Močnostni transformator, ki vključuje del, izdelan iz jeklene pločevine z orientiranimi zrni po zahtevku 10.
SI201330978T 2012-07-31 2013-07-30 Postopek proizvodnje silicijeve jeklene pločevine z orientiranimi zrni, električna jeklena pločevina z orientiranimi zrni in njena uporaba SI2880190T1 (sl)

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Application Number Priority Date Filing Date Title
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
EP13773324.2A EP2880190B1 (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 (sl)
EP (1) EP2880190B1 (sl)
JP (3) JP6294319B2 (sl)
KR (1) KR101575633B1 (sl)
CN (1) CN104884642B (sl)
BR (1) BR112015002254B1 (sl)
CA (1) CA2880724C (sl)
DK (1) DK2880190T3 (sl)
EA (1) EA028436B1 (sl)
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HR (1) HRP20180388T1 (sl)
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IN (1) IN2015DN00804A (sl)
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NO (1) NO2880190T3 (sl)
PL (1) PL2880190T3 (sl)
PT (1) PT2880190T (sl)
RS (1) RS57048B1 (sl)
SI (1) SI2880190T1 (sl)
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US9831020B2 (en) 2017-11-28
PL2880190T3 (pl) 2018-06-29
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EP2880190A1 (en) 2015-06-10
DK2880190T3 (en) 2018-03-19
CN104884642B (zh) 2016-12-07
BR112015002254A2 (pt) 2017-07-04
CN104884642A (zh) 2015-09-02
EP2880190B1 (en) 2018-01-03
BR112015002254B1 (pt) 2020-03-31
ES2664326T3 (es) 2018-04-19
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JP6294319B2 (ja) 2018-03-14
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US20150155085A1 (en) 2015-06-04
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