Method and apparatus for heat treating camshafts
US4604510A · kind A · utility
28Cited by
7References
26Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 20, 1985 |
| Grant date | Aug 5, 1986 |
| Priority date | — |
| Expiry date | May 20, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC21D9/30
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method and apparatus for heat treating camshafts includes a retractable shield positioned between a previously hardened surface and a surface being heat treated. During the induction heating and quenching cycle, a coolant is delivered to the hardened surface to maintain the temperature thereof below the tempering temperature. The shield prevents the coolant from contacting the unhardened surface and interfering with the heating and quenching thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.