Patent · US Expired

Iron-based soft magnetic alloy containing cobalt for use as a solenoid core

US5817191A · kind A · utility

13Cited by

6References

4Claims

0Family size

Assignee

Vacuumschmelze GmbH & Co. KG · DE

Inventors

Kurt Emmerich · Alzenau, DE
Hartwin Weber · Hanau, DE
Hermann Wegerle · Lütjenburg, DE

Key dates

Filing date	Aug 26, 1997
Grant date	Oct 6, 1998
Priority date	—
Expiry date	Aug 26, 2017

Classification

Technology area (CPC H)Electricity
CPC primaryH01F1/147
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

An iron-based, cobalt-containing soft magnetic alloy suitable for use as a core in a magnetic switch or other exciting circuits has a cobalt content of 6 through 30 weight percent, at least one of the elements chromium, molybdenum, vanadium and tungsten in range of 3 through 8 weight percent, and a remainder iron, possibly including inconsequential contaminants. The alloy has a coercive field strength of lower than or equal to 3.2 A/cm, and a saturation flux density of greater than 1.9 Tesla.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.