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Process of preparing metal parts to be heated by means of infrared radiance

United States Patent

June 9, 2009
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
A method for preparing metal for heating by infrared radiance to enable uniform and consistent heating. The surface of one or more metal parts, such as aluminum or aluminum alloy parts, is treated to alter the surface finish to affect the reflectivity of the surface. The surface reflectivity is evaluated, such as by taking measurements at one or more points on the surface, to determine if a desired reflectivity has been achieved. The treating and measuring are performed until the measuring indicates that the desired reflectivity has been achieved. Once the treating has altered the surface finish to achieve the desired reflectivity, the metal part may then be exposed to infrared radiance to heat the metal part to a desired temperature, and that heating will be substantially consistent throughout by virtue of the desired reflectivity.
Mayer; Howard Robinson (Cincinnati, OH), Blue; Craig A. (Knoxville, TN)
Queen City Forging Co. (Cincinnati, OH), The United States of America as represented by the United States Department of Energy (Washington, DC), N/A (
10/ 892,778
July 16, 2004
STATEMENT REGARDING FEDERALLY SPONSORED RESERARCH OR DEVELOPMENT The U.S. Government has a paid-up license in this invention and the right in limited circumstances to require the patent owner to license others on reasonable terms as provided for by the terms of Contract No. D.O.E. DE-PS07-01ID14026 awarded by the Department of Energy.