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:
Feb. 07, 2006
Filed:
Oct. 17, 2002
Nripendra Nath Das, West Chester, OH (US);
Raymond William Heidorn, Fairfield, OH (US);
Walter Michael Gmerek, Jr., West Chester, OH (US);
David Andrew Jablonka, Hamilton, OH (US);
Nripendra Nath Das, West Chester, OH (US);
Raymond William Heidorn, Fairfield, OH (US);
Walter Michael Gmerek, Jr., West Chester, OH (US);
David Andrew Jablonka, Hamilton, OH (US);
General Electric Company, Schenectady, NY (US);
Abstract
A method for applying diffusion aluminide coating on a selective area of a turbine engine component and the coating produced by that method is disclosed. A quartz infrared lamp heats only substantially the localized area of the component to be coated, rather than the complete part. Either halide activated or non-activated tape is applied on the area to be coated and is held in place during coating using a high temperature dimensionally stable tape holder manufactured from graphite or ceramic. The quartz infrared lamp is used to heat only the desired area to a coating temperature of about 1800° F. to about 2000° F. under an inert atmosphere for about 3 to about 8 hours to achieve the desired aluminide coating thickness. No powder masking of the machined surface area is required. Due to the localized heating, aluminum vapor generated from the tape will only deposit aluminide coating on the taped area.