EP 1041168 A1 20001004 - Soft magnetic alloy for a timepiece
Title (en)
Soft magnetic alloy for a timepiece
Title (de)
Weichmagnetische Legierung für Uhrwerk
Title (fr)
Alliage magnetique doux pour horlogerie
Publication
Application
Priority
FR 9904302 A 19990402
Abstract (en)
A soft magnetic iron-nickel alloy, having a relatively low nickel content and containing chromium and cobalt, is new. A novel soft magnetic iron-nickel alloy has the composition (by wt.) 34-40% Ni, 7-10% Cr, 0.5-3% Co, 0.1-1% Mn, ≤ 0.007% ≤ 0.002% S, ≤ 0.004% N, balance Fe and impurities, the sum of N + S + O being ≤ 0.01%.
Abstract (fr)
Alliage magnétique doux du type fer-nickel dont la composition chimique comprends, en % en poids : 34 % <= Ni <= 40 % ; 7 % <= Cr <= 10 % ; 0,5 % <= Co <= 3 % ; 0,1 % <= Mn <= 1 % ; O <= 0,007 % ; S <= 0,002 % ; N <= 0,004% ; avec N + S + O <= 0,01 % ; le reste étant du fer et des impuretés résultant de l'élaboration. Utilisation pour des circuits magnétiques de moteurs d'horlogerie.
IPC 1-7
IPC 8 full level
G04C 3/14 (2006.01); C22C 30/00 (2006.01); C22C 38/00 (2006.01); C22C 38/52 (2006.01); H01F 1/147 (2006.01)
CPC (source: EP US)
C22C 38/004 (2013.01 - EP US); C22C 38/52 (2013.01 - EP US); H01F 1/14708 (2013.01 - EP US)
Citation (search report)
- [X] EP 0827256 A1 19980304 - IMPHY SA [FR]
- [XA] US 4131494 A 19781226 - MOMOSE KENICHIRO, et al
- [XA] GB 553180 A 19430511 - WILSON H A CO
- [A] EP 0889488 A1 19990107 - IMPHY SA [FR]
- [A] GB 504864 A 19390502 - FABRIQUES DE SPIRAUX REUNIES S, et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
DOCDB simple family (publication)
EP 1041168 A1 20001004; EP 1041168 B1 20040428; AT E265554 T1 20040515; CA 2302845 A1 20001002; CN 1192400 C 20050309; CN 1269588 A 20001011; DE 60010167 D1 20040603; DE 60010167 T2 20050804; FR 2791704 A1 20001006; FR 2791704 B1 20010525; HK 1030294 A1 20010427; JP 2000319766 A 20001121; MX PA00003157 A 20020308; TW I228150 B 20050221; US 6350324 B1 20020226
DOCDB simple family (application)
EP 00400646 A 20000309; AT 00400646 T 20000309; CA 2302845 A 20000327; CN 00105318 A 20000331; DE 60010167 T 20000309; FR 9904302 A 19990402; HK 01101260 A 20010221; JP 2000100777 A 20000403; MX PA00003157 A 20000330; TW 89105436 A 20000324; US 53574000 A 20000327