Patent · US Active

Levitation melting method using movable induction units

US11197351B2 · kind B2 · utility

0Cited by

8References

7Claims

0Family size

Assignee

ALD VACUUM TECHNOLOGIES GMBH · DE

Inventors

Sergejs Spitans · Frankfurt am Main, DE
Henrik FRANZ · Alzenau, DE
Bjoern Sehring · Bessenbach, DE
Egon Bauer · Sulzbach/Saar, DE
Andreas Krieger · Frankfurt am Main, DE

Key dates

Filing date	Jul 9, 2019
Grant date	Dec 7, 2021
Priority date	—
Expiry date	Jul 9, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/26
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a levitation melting process and a device for producing castings with movable induction units. In this process, induction units are used in which the opposite ferrite poles with the induction coils are movable and move in opposite directions. In this way, the induction units for melting the batches can be arranged close together in order to increase the efficiency of the induced magnetic field. When casting the molten batch, the induced magnetic field is reduced by increasing the distance between the ferrite poles with the induction coils, thus preventing the melt from touching the ferrite poles or the induction coils.

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