The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 15, 2007
Filed:
Aug. 06, 2003
Samuel Vinod Thamboo, Latham, NY (US);
Michael Francis Henry, Schenectady, NY (US);
Samuel Vinod Thamboo, Latham, NY (US);
Michael Francis Henry, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
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.