Heat treating of metallurgic article with varying aspect ratios
US6166360A · kind A · utility
8Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 13, 1999 |
| Grant date | Dec 26, 2000 |
| Priority date | — |
| Expiry date | Oct 13, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D2221/01
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
This invention provides methods for rapidly heating a metal part of varying thickness. In general, the invention provides methods comprising heating the thicker section(s) of the part by induction heating and the thinner section(s) by resistance heating. Induction and resistance heating both quickly heat metals and because each is easily controlled individually, the part can be uniformly heated for hardening and tempering.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.