Title (en)

FECO- OR FESI- OR FE-ALLOY SHEET OR STRIP AND ITS MANUFACTURING PROCESS, TRANSFORMER MAGNETIC CORE MADE FROM IT AND TRANSFORMER CONTAINING IT

Title (de)

FEINBLECH ODER STREIFEN AUS EINER FECO- ODER FESI- ODER FE-LEGIERUNG, HERSTELLUNGSVERFAHREN DAFÜR, DARAUS HERGESTELLTER TRANSFORMATORMAGNETKERN UND TRANSFORMATOR DEN TRANSFORMATORMAGNETKERN ENTHALTEND

Title (fr)

TÔLE OU BANDE EN ALLIAGE FECO OU FESI OU EN FE ET SON PROCÉDÉ DE FABRICATION, NOYAU MAGNÉTIQUE DE TRANSFORMATEUR RÉALISÉ À PARTIR D'ELLE ET TRANSFORMATEUR LE COMPORTANT

Publication

EP 3329027 B1 20210811 (FR)

Application

EP 16745720 A 20160729

Priority

• EP 2015067443 W 20150729
• EP 2016068172 W 20160729

Abstract (en)

[origin: WO2017016604A1] The invention relates to a cold-rolled, annealed ferrous alloy sheet or strip (1), characterised in that it consists of (by weight percentage): traces ≤ Co ≤ 40%; if Co ≥ 35%, traces ≤ Si ≤ 1%; if traces ≤ Co < 35%, traces ≤ Si ≤ 3.5%; if Co < 35%, Si + 0.6 %Al ≤ 4.5 – 0.1 %Co; traces ≤ Cr ≤ 10%; traces ≤ V + W + Mo + Ni ≤ 4%; traces ≤ Mn ≤ 4%; traces ≤ Al ≤ 3%; traces ≤ S ≤ 0.005%; traces ≤ P ≤ 0.007%; traces ≤ Ni ≤ 3%; traces ≤ Cu ≤ 0.5%; traces ≤ Nb ≤ 0.1%; traces ≤ Zr ≤ 0.1%; traces ≤ Ti ≤ 0.2%; traces ≤ N ≤ 0.01%; traces ≤ Ca ≤ 0.01%; traces ≤ Mg ≤ 0.01%; traces ≤ Ta ≤ 0.01%; traces ≤ B ≤ 0.005%; traces ≤ O ≤ 0.01%; the remainder being iron and impurities resulting from production. The sheet or strip is also characterised in that, for 1.8 T induction, the maximum deviation (Max ∆λ) between the magnetostriction deformation values λ, which are measured both parallel to the magnetic field (Ha) applied (λ//H) and perpendicularly to the magnetic field (Ha) applied (λ┴H) over three rectangular samples (2, 3, 4) of the sheet or strip, of which the large sides are parallel to the sheet or strip rolling direction (DL), parallel to the cross direction (DT) of the sheet or strip, and parallel to the direction forming an angle of 45° with the rolling direction (DL) and the cross direction (DT), is at most 25ppm. The sheet or strip is further characterised by its recrystallisation rate of between 80 à 100%. The invention also relates to a method for producing such a sheet or strip, a magnetic transformer core produced using said sheet or strip, and a transformer comprising same.

IPC 8 full level

C21D 1/76 (2006.01); C21D 8/12 (2006.01); C22C 38/02 (2006.01); C22C 38/04 (2006.01); C22C 38/06 (2006.01); C22C 38/10 (2006.01); C22C 38/18 (2006.01); H01F 1/18 (2006.01); H01F 41/02 (2006.01); C22C 38/00 (2006.01); C22C 38/22 (2006.01); C22C 38/30 (2006.01); C22C 38/44 (2006.01); C22C 38/52 (2006.01)

CPC (source: EP KR RU US)

C21D 1/76 (2013.01 - EP US); C21D 1/773 (2013.01 - KR); C21D 8/12 (2013.01 - RU); C21D 8/1233 (2013.01 - EP KR US); C21D 8/1266 (2013.01 - EP KR US); C21D 8/1272 (2013.01 - EP KR US); C22C 38/02 (2013.01 - EP RU US); C22C 38/04 (2013.01 - EP); C22C 38/06 (2013.01 - EP RU US); C22C 38/10 (2013.01 - EP RU US); C22C 38/18 (2013.01 - US); C22C 38/30 (2013.01 - KR); C22C 38/44 (2013.01 - KR); C22C 38/46 (2013.01 - KR); C22C 38/52 (2013.01 - KR); H01F 1/147 (2013.01 - RU US); H01F 1/14783 (2013.01 - US); H01F 1/18 (2013.01 - EP KR US); H01F 41/0233 (2013.01 - EP KR US); C21D 8/1222 (2013.01 - EP US); C21D 2211/005 (2013.01 - EP KR US); C22C 38/002 (2013.01 - EP); C22C 38/18 (2013.01 - EP); C22C 38/22 (2013.01 - EP); C22C 38/30 (2013.01 - EP US); C22C 38/44 (2013.01 - EP); C22C 38/52 (2013.01 - EP US)

Citation (examination)

• JP 2005060811 A 20050310 - SUMITOMO METAL IND
• EP 3162907 A1 20170503 - NIPPON STEEL & SUMITOMO METAL CORP [JP]

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DOCDB simple family (publication)

WO 2017016604 A1 20170202; BR 112018001734 A2 20180918; BR 112018001734 B1 20220303; CA 2992271 A1 20170202; CA 2992271 C 20230711; CN 107849665 A 20180327; CN 107849665 B 20200602; EP 3329027 A1 20180606; EP 3329027 B1 20210811; ES 2886036 T3 20211216; JP 2018529021 A 20181004; JP 7181083 B2 20221130; KR 102608662 B1 20231204; KR 20180035833 A 20180406; MX 2018000925 A 20180530; RU 2018102986 A 20190729; RU 2018102986 A3 20200120; RU 2724810 C2 20200625; US 11767583 B2 20230926; US 2018223401 A1 20180809; WO 2017017256 A1 20170202

DOCDB simple family (application)

EP 2015067443 W 20150729; BR 112018001734 A 20160729; CA 2992271 A 20160729; CN 201680044566 A 20160729; EP 16745720 A 20160729; EP 2016068172 W 20160729; ES 16745720 T 20160729; JP 2018504237 A 20160729; KR 20187004717 A 20160729; MX 2018000925 A 20160729; RU 2018102986 A 20160729; US 201615748577 A 20160729