Patent · US Expired

Apparatus for inductively heating a workpiece

US6677560B2 · kind B2 · utility

4Cited by

8References

26Claims

0Family size

Assignee

ALD VACUUM TECHNOLOGIES GMBH · DE

Inventors

Helmut Eberhardt · Gelnhausen, DE
Karl-Heinz Grosse · Grundau, DE
Karl Herchenrother · Birstein, DE
Jurgen Lemke · Weinheim, DE

Key dates

Filing date	Feb 6, 2001
Grant date	Jan 13, 2004
Priority date	—
Expiry date	Dec 11, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/60
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

The invention relates to an apparatus and a method for heating a workpiece of an inductively heatable material, for example a turbine blade. Such a turbine blade consists of a massive blade base and a low-mass blade leaf. To enable the blade base and blade leaf to be heated in a manner appropriate to each an induction coil is provided, which surrounds the blade base and the blade leaf. By suitable choice of the alternating currents which flow through the induction coil and/or through the interposition of a susceptor between turbine blade and induction coil, the blade base and blade leaf can be heated in an appropriate manner.

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