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1. (WO2001000895) IRON-COBALT ALLOY WITH A LOW COERCITIVE FIELD INTENSITY AND METHOD FOR THE PRODUCTION OF SEMI-FINISHED PRODUCTS MADE OF AN IRON-COBALT ALLOY
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/000895 International Application No.: PCT/EP2000/005730
Publication Date: 04.01.2001 International Filing Date: 21.06.2000
IPC:
C21D 6/00 (2006.01) ,C21D 8/12 (2006.01) ,C22C 38/00 (2006.01) ,C22C 38/22 (2006.01) ,C22C 38/24 (2006.01) ,C22C 38/30 (2006.01)
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
6
Heat treatment of ferrous alloys
C CHEMISTRY; METALLURGY
21
METALLURGY OF IRON
D
MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS
8
Modifying the physical properties by deformation combined with, or followed by, heat treatment
12
during manufacturing of articles with special electromagnetic properties
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
22
with molybdenum or tungsten
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
24
with vanadium
C CHEMISTRY; METALLURGY
22
METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C
ALLOYS
38
Ferrous alloys, e.g. steel alloys
18
containing chromium
30
with cobalt
Applicants: TENBRINK, Johannes[DE/DE]; DE (UsOnly)
VAERST, Gernot[DE/DE]; DE (UsOnly)
EMMERICH, Kurt[DE/DE]; DE (UsOnly)
VACUUMSCHMELZE GMBH[DE/DE]; Grüner Weg 37 63450 Hanau, DE (AllExceptUS)
Inventors: TENBRINK, Johannes; DE
VAERST, Gernot; DE
EMMERICH, Kurt; DE
Agent: WESTPHAL, MUSSGNUG & PARTNER; Waldstrasse 33 78048 Villingen-Schwenningen, DE
Priority Data:
199 28 764.323.06.1999DE
Title (EN) IRON-COBALT ALLOY WITH A LOW COERCITIVE FIELD INTENSITY AND METHOD FOR THE PRODUCTION OF SEMI-FINISHED PRODUCTS MADE OF AN IRON-COBALT ALLOY
(FR) ALLIAGE FER-COBALT A FAIBLES INTENSITES DE CHAMP COERCITIFS ET PROCEDE DE REALISATION DE DEMI-PRODUITS A PARTIR D'UN ALLIAGE FER-COBALT
(DE) EISEN-KOBALT-LEGIERUNG MIT GERINGER KOERZITIVFELDSTÄRKE UND VERFAHREN ZUR HERSTELLUNG VON HALBZEUG AUS EINER EISEN-KOBALT-LEGIERUNG
Abstract:
(EN) An Fe-based alloy with 10 -20 wt. % Co, 2-6.5 wt. % Cr, Mo and V, containing less than 0.4 wt. % Ni and Mn and less than 0.02 wt. % C. Said soft magnetic alloy enables particularly low coercitive fields to be obtained. Workpieces made of said alloy are finally annealed in an optimum temperature range 20 at approximately 850 °C.
(FR) La présente invention concerne un alliage fer-cobalt se basant sur Fe, comprenant 10 à 20 % en poids de Co, 2 à 6,5 % en poids de Cr, Mo et V, ayant une teneur en Ni et Mn inférieure à 0,4 % en poids et une teneur en C inférieure à 0,02 % en poids. Cet alliage magnétique doux permet d'obtenir des intensités de champ coercitifs particulièrement faibles. Pour cela, des pièces constituées de cet alliage sont soumises à un recuit final à une température optimale comprise entre 20 et 850 °C.
(DE) Eine Legierung auf der Basis von Fe mit 10 bis 20 Gew.-% Co, 2 bis 6,5 Gew.-% Cr, Mo und V weist einen Gehalt von Ni und Mn unterhalb 0,4 Gew.-% und einen Gehalt an C unterhalb 0,02 Gew.-% auf. Mit dieser weichmagnetischen Legierung lassen sich besonders niedrige Koerzitivfeldstärken erzielen. Dazu werden Werkstücke aus dieser Legierung einer Schlussglühung in einem optimalen Temperaturbereich 20 um 850 °C unterzogen.
front page image
Designated States: JP, US
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: German (DE)
Filing Language: German (DE)