Patent ID: 6667076
Filing Date: 2003-12-23
Classification: B23P,C23C,F01D,F05D,Y02T,Y10T

Abstract:
A process for coating a temperature-stable component with a thermal protection layer, in which the temperature-stable component has a surface which is to be coated with the thermal protection layer and at which there is at least one cooling-passage opening which is connected to a cooling passage running inside the component, comprising:directing a coating mass flow onto the surface which is to be coated; directing a mass flow through the cooling passage opening during the step of directing a coating mass flow; and emerging the mass flow through the cooling-passage opening and the coating mass flow at an included angle &agr;â‰ 0Â°; wherein the steps of directing a mass flow and of directing a coating mass flow comprise directing; the flow velocities of the mass flow and of the coating mass so that the coating mass flow is prevented from penetrating into the cooling passage, and the coating mass flow is diverted as it passes through the mass flow at least in the vicinity of the cooling-passage opening; and wherein the diversion of the coating mass flow by the mass flow further comprises the step of leaving a limited surface region of the surface which is to be coated directing adjacent to the cool jug-passage opening uncoated to form a coating shadow.