Method and apparatus for heat treating metal parts
US5556593A · kind A · utility
1Cited by
4References
13Claims
0Family size
Inventor
Key dates
| Filing date | Dec 14, 1995 |
| Grant date | Sep 17, 1996 |
| Priority date | — |
| Expiry date | Dec 14, 2015 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF27D2099/0008
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A heat insulated enclosure with an inlet introducing metal parts such as coil springs to be heat treated, such as by annealing. The apparatus also includes a support on which the metal parts are received, where they are continuously moved towards an outlet. A continuous flow of hot air is circulated substantially perpendicularly with respect to the metal parts to provide the heat treatment. This can be achieved by means of a rotary disk to receive the metal parts and allowing them to follow a spiral path until reaching the outlet. This system enables a continuous operation and is therefor much cheaper to operate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.