Coating method of corrosion-resistant film and corrosion-resistant film

Abstract

To form a corrosion-resistant film by coating by thickening a film of a heat-resistant coating.SOLUTION: With an intermediary layer 4 in which the fusion (infiltration) of a component of a heat-resistant layer 5 mainly composed of aluminum oxide and the destruction of a structure of a paint of the heat-resistant layer 3 mainly composed of aluminum oxide are suppressed is sandwiched in between, a heat-resistant layer 3 (first heat-resistant coating film) and the heat-resistant layer 5 (second heat-resistant coating film) are formed by coating (for example, a spraying method), and the occurrence of sagging paint and blistering of the paint fil, and cracks are suppressed, and the heat-resistant layer 3 (first heat-resistant coating film) and the heat-resistant layer 5 (second heat-resistant coating film) are formed.SELECTED DRAWING: Figure 1

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