EP 0429651 A4 19911204 - IRON BASE, SOFT MAGNETIC STEEL MATERIAL
Title (en)
IRON BASE, SOFT MAGNETIC STEEL MATERIAL
Publication
Application
Priority
JP 15502689 A 19890617
Abstract (en)
[origin: EP0429651A1] This invention relates to an iron base, soft magnetic steel material which has high permeability and moreover, can be produced economically. The steel material of this invention uses a pure iron type component as a base and contains 0.5 to 2.5 % of Al and, whenever necessary, 0.005 to 1.0 % of Ti. Its ferrite crystal grain size is at least 0.5 mm, its magnetic flux density is at least 11,000 G at 0.5 Oe under the state where a lattice strain is removed sufficiently, its magnetic flux density is at least 15,500 G at 25 Oe and its coercive force is up to 0.4 Oe.
IPC 1-7
IPC 8 full level
C22C 38/00 (2006.01); C21D 8/12 (2006.01); C22C 38/06 (2006.01); C22C 38/14 (2006.01); H01F 1/147 (2006.01); H01F 1/16 (2006.01)
CPC (source: EP KR)
C22C 38/06 (2013.01 - EP); H01F 1/147 (2013.01 - EP); H01F 1/16 (2013.01 - KR)
Citation (search report)
- [A] IEEE TRANSACTIONS ON MAGNETICS, vol. MAG-7, no. 1, 1st March 1971, pages 48-60; M.F. LITTMANN: "Iron and silicon-iron alloys"
- See references of WO 9016076A1
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
EP 0429651 A1 19910605; EP 0429651 A4 19911204; EP 0429651 B1 19940302; CA 2020464 A1 19901218; CN 1026597 C 19941116; CN 1048237 A 19910102; DE 68913544 D1 19940407; DE 68913544 T2 19940721; JP 2679258 B2 19971119; JP H0320447 A 19910129; KR 920700458 A 19920219; KR 970004566 B1 19970329; WO 9016076 A1 19901227
DOCDB simple family (application)
EP 90900342 A 19891208; CA 2020464 A 19900618; CN 89109231 A 19891208; DE 68913544 T 19891208; JP 15502689 A 19890617; JP 8901232 W 19891208; KR 910700178 A 19910213