Method of manufacturing a corrosion resistant rotor assembly
US4214921A · kind A · utility
12Cited by
6References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 30, 1979 |
| Grant date | Jul 29, 1980 |
| Priority date | — |
| Expiry date | Mar 30, 1999 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49012
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A method of manufacturing a corrosion resistant rotor assembly including heating the core of the rotor assembly which is made of a stack of thin steel laminations to a temperature sufficient so as to cause at least some oxidation of the core and the quenching the core in a temperature controlled bath of suitable oil so as to form a tough, corrosion resistant surface on the exposed surfaces of the rotor assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.