Coating method for a component with partially closed holes and method for opening the holes

摘要

The method for coating of a component (1, 120, 130, 155) having a row of holes, comprises providing two holes from the row of holes with a masking material before coating so that the two holes (13', 13'') are not coated or hardly coated in the coating within the flared cool air, and coating the component with open holes (15, 15') and closed holes in which after the coating, the masking material is removed from the cooling air holes. The holes are cooling air holes. A masked component is provided in a row of holes between the closed cooling air holes. The method for coating of a component (1, 120, 130, 155) having a row of holes, comprises providing two holes from the row of holes with a masking material before coating so that the two holes (13', 13'') are not coated or hardly coated in the coating within the flared cool air, and coating the component with open holes (15, 15') and closed holes in which after the coating, the masking material is removed from the cooling air holes. The holes are cooling air holes. A masked component is provided in a row of holes between the closed cooling air holes. The four cooling air holes are masked before coating. The two masked cooling air holes are directly arranged next to one another. The unclosed cooling air holes in the row of holes are present between the other masked cooling air holes, where 40% of cooling air holes are closed. The top and the bottom hole of the row of holes are closed. The cooling air holes in a row of holes are formed differently or the row of holes is divided into sections, in which the alignment of the cooling air holes of a section is different and is closed for each section of the cooling air holes. An independent claim is included for a method for opening cooling air holes.