Turbine rotor heat treatment process
US7217330B2 · kind B2 · utility
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14References
5Claims
0Family size
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Key dates
| Filing date | Aug 6, 2003 |
| Grant date | May 15, 2007 |
| Priority date | — |
| Expiry date | Sep 7, 2024 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2230/40
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A method of heat treating a turbine rotor disk to obtain different radial properties at different locations in the rotor disk includes a) heating the rotor disk for a period of from 4 to 10 hours at a temperature of 1800° F.; b) cooling the rotor disk to a temperature of about 1550° F.; c) holding the rotor disk at about 1550° F. for a period of from about 2 to about 4 hours; d) cooling the rotor disk to room temperature; e) precipitation aging the rotor disk by heating the rotor disk to temperature of 1325° F. for 8 hours, holding it at 1150° F. for 8 hours, and f) cooling the rotor disk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.