Method for coating a sodium piping in a fast breeder reactor

A method for externally covering sodium conveying piping in a fast breeder reactor, comprising preparing a covering material by mixing alkali metal salt having sodium resistance and silicate or phosphate under a wet condition, press-shaping said mixture and thereafter drying the shaped mixture, covering the sodium conveying piping with the dried shaped mixture, and then sheathing the outer surface of the covering material with a sheathing material.

A method for externally covering sodium conveying piping, comprising preparing a covering material by adding a caking agent having sodium resistance to a raw material having sodium resistance, press-shaping the mixture and forming a guide groove for metallic sodium on its inner surface, covering the sodium piping with said shaped and grooved covering material, then sheathing a sheathing material over the outer surface of the covering material, disposing a metallic sodium detector in the guide groove formed on the inner surface of said covering material, connecting an inert gas supply pipe to said guide groove, and coupling said detector and said inert gas supply pipe to a control device.

A method for externally covering sodium conveying piping in a fast breeder reactor, comprising preparing covering material by mixing a raw material having sodium resistance, inorganic light weight aggregate and an inorganic caking agent under a wet condition, press-shaping said mixture and thereafter drying the shaped mixture, applying said covering to sodium conveying piping, and then sheathing a sheathing material over the outer surface of the covering material.