SPRAY COATING METHOD AND PLUG FOR SPRAY COATING

摘要

PROBLEM TO BE SOLVED: To form a spray deposit with high quality and performance without adversely affecting the spray deposit even if a part free from the spray deposit is provided by the use of a plug. SOLUTION: The method is used for depositing the coating film 30 on the surface of a base material 10 by thermal spraying, and the base material 10 has a hole part 14 free from the coating film 30. This method comprises a step (a) of filling the hole part 14 of the base material 10 with the plug 20 which has a core material 22 made of metallic material and a resin/metal composite layer 24 which consists of the composite body of a resin material unjoinable to the coating film 30 and a metallic material and covers the outside periphery of the core material 22; a step (b) of depositing the coating film 30 by applying thermal spraying to the surface of the base material 10 after the step (a); and a step (c) of extracting the plug 20 from the hole part 14 of the base material 10 after the step (b). COPYRIGHT: (C)2004,JPO