Induction furnace for heating a workpiece in an inert atmosphere or vacuum
US6861629B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 9, 2003 |
| Grant date | Mar 1, 2005 |
| Priority date | — |
| Expiry date | May 9, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B6/26
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An induction furnace, according to one embodiment of the invention, includes an induction heating system and a chamber that comprises a quartz cylinder, a top cover for sealing the top end of the cylinder, and a bottom cover for sealing the bottom end of the cylinder. The induction heating system includes a power supply and a coil. The coil surrounds the chamber. Contained within the chamber is a susceptor that is susceptable to induction heating. Also contained in the chamber is a thermal insulator that is disposed between the susceptor and the inner walls of the chamber. The insulator includes a fused quartz container in which the susceptor and the workpiece are contained.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.