Patent · US Active

Levitation melting process

US11370020B2 · kind B2 · utility

0Cited by

6References

16Claims

0Family size

Assignee

ALD VACUUM TECHNOLOGIES GMBH · DE

Inventors

Sergejs Spitans · Frankfurt am Main, DE
Henrik FRANZ · Alzenau, DE
Bjoern Sehring · Bessenbach, DE
Markus Holz · Aalen, DE

Key dates

Filing date	Apr 18, 2019
Grant date	Jun 28, 2022
Priority date	—
Expiry date	Apr 18, 2039

Classification

Technology area (CPC H)Electricity
CPC primaryH05B6/32
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The invention relates to a method for producing casting bodies in a levitation melting method in which a batch of an electrically conductive material is brought into the sphere of influence of at least one alternating electromagnetic field by means of a starting material having a plurality of pre-separated batches separated by regions of reduced cross-section so that the batch is kept in a state of levitation. The regions are designed in such a way that separation of the pre-separated batches takes place only during melting in an alternating electromagnetic field. The melt is then cast into casting moulds.

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