Patent ID: 9187816
Filing Date: 2015-11-17
Classification: C23C,F23C,F23D,F23R

Abstract:
1. A method of reducing a cross-sectional area of a hole in a component of a complex device to a predetermined cross-sectional area, the method comprising: operating the complex device with the component; removing the component from the complex device, the cross-sectional area of the hole being in an oversized condition relative to the predetermined cross-sectional area as a result of wear caused by the operation of the complex device; preparing a composition comprising at least an aluminum alloy with a melting temperature higher than aluminum; applying the composition to an interior surface of the hole; and then heating the component to a temperature to cause a metal within the component to diffuse from the component into the composition and react with the aluminum alloy in the composition to form a coating on the interior surface of the hole, the heating step being performed for a duration until the coating is sufficiently thick to selectively decrease the cross-sectional area of the hole and thereby directly attain the predetermined cross-sectional area for the hole, the decrease in the cross-sectional area being tailored by adjusting at least one of the temperature and duration of the heating step.