CORROSION PREVENTING STRUCTURE OF PIPING

摘要

PURPOSE:To make the corrosion preventing effect high in reliability by coating the neighborhood of the projecting part at the tip of a fin with a tetrafluoroethylene film. CONSTITUTION:A fin 22 is formed on the outer peripheral surface of the main body 21 of piping made of metal. This piping is used in an atmosphere of corrosive gas. The whole body 21 and 22 of the piping is coated with a corrosion preventing coating film 23. Then, the neighborhood of the projecting part at the tip of the fin 22 is coated with a polytetrafluoroethylene film 24. In this way the piping excellent in corrosion resistance and heat resistance can be provided.