Patent ID: 8277194
Filing Date: 2012-10-02
Classification: C23C,F01D,F05D,Y02T

Abstract:
1. A spraying method for producing a coating on a component of a gas turbine engine, comprising: moving a mask with a mask opening to a first position such that the mask opening is aligned with a first restricted area of the component; propelling ceramic particles through the mask opening in the first position and onto the first restricted area of the component; forming scales in the first restricted area, based on the propelling of the ceramic particles through the mask opening in the first position, said scales in the first restricted area being aligned with a flow direction of combustion exhaust gas relative to the component; moving the mask with the mask opening to a second position such that the mask opening is aligned with a second restricted area of the component; propelling ceramic particles through the mask opening in the second position and onto the second restricted area of the component, said second restricted area having a partial overlap with the first restricted area in the flow direction of combustion exhaust gas relative to the component; and forming scales in the second restricted area, based on the propelling of the ceramic particles through the mask opening in the second position, said scales in the second restricted area having a partial overlap with the scales in the first restricted area in the flow direction of the combustion exhaust gas relative to the component.