EP 0254932 A3 19890719 - HEAT TREATMENT OF RAPIDLY QUENCHED FE-6.5 WT SI RIBBON
Title (en)
HEAT TREATMENT OF RAPIDLY QUENCHED FE-6.5 WT SI RIBBON
Publication
Application
Priority
US 89413986 A 19860801
Abstract (en)
[origin: EP0254932A2] A rapidly quenched Fe-Si alloy containing 6 to 7 wt% Si is heat treated to promote and control any order-disorder reaction, thereby improving its ac core loss and exciting power at induction levels above B=1.2 T. The alloy has a substantially <100> texture, a grain size of about 1 to 2 mm, a B2 domain size of 100 to 850 nm, a DO3 domain size of about 5 to 25 nm, an ac core loss of about 1.2 to 1.6 W/kg and an exciting power of about 15 to 46 VA/kg, the core loss and exciting power being measured at an induction level of B=1.4 T and a frequency of f=60 Hz.
IPC 1-7
IPC 8 full level
C21D 1/26 (2006.01); C21D 6/00 (2006.01); C21D 8/12 (2006.01); C22C 38/00 (2006.01); C22C 38/02 (2006.01); H01F 1/147 (2006.01); H01F 1/153 (2006.01)
CPC (source: EP)
C21D 1/26 (2013.01); C21D 6/008 (2013.01); H01F 1/14775 (2013.01); H01F 1/15341 (2013.01)
Citation (search report)
- [A] DE 3021224 A1 19801218 - SONY CORP
- [Y] PATENT ABSTRACTS OF JAPAN, vol. 7, no. 97 (C-163)[1242], 23rd April 1983; & JP-A-58 22 331 (PIONEER K.K.) 09-02-1983
- [Y] IEEE TRANSACTIONS ON MAGNETICS, vol. MAG-20, no. 4, July 1984, pages 553-558, IEEE, New York, US; C.F. CHANG et al.: "Texture and magnetic properties of rapidly quenched Fe-6.5wt%Si ribbon
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0254932 A2 19880203; EP 0254932 A3 19890719; EP 0254932 B1 19921021; DE 3782288 D1 19921126; DE 3782288 T2 19930304; JP 2684177 B2 19971203; JP S6353242 A 19880307
DOCDB simple family (application)
EP 87109970 A 19870710; DE 3782288 T 19870710; JP 19053387 A 19870731