Method for producing soft magnetic alloys with very high permeab

Details Method for producing soft magnetic alloys with very high permeab Method for producing soft magnetic alloys with very high permeab

1993-07-29

1995-08-15

Wyszomierski, George

Metal treatment

Process of modifying or maintaining internal physical...

Magnetic materials

75 1025, 75 1053, 75 1055, C21C 7076

Patent

active

054415780

ABSTRACT:
Method for producing soft magnetic alloys with very high permeability, in which an ingot is cast containing in its composition more than 70% nickel or more than 45% cobalt, the metal having, or not having, been subjected to a secondary metallurgical step, the ingot is remelted under an electroconductive slag, the remelted ingots being converted into strips after hot rolling then cold rolling, the strips then being subjected to a treatment for developing magnetic characteristics, in which method the alloy is remelted under an electroconductive slag comprising at least the first three components of the system: CaF.sub.2, CaO, SiO.sub.2, Al.sub.2 O.sub.3, and defining a zone in a ternary diagram delimited by the following proportions by weight:

REFERENCES:
patent: 2558104 (1951-06-01), Scharschu
patent: 3615903 (1971-10-01), Perry et al.
patent: 3857702 (1974-12-01), Corbett
patent: 4450007 (1984-05-01), Herchenroeder et al.

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