Insulation Attachment By Welding For An Aircraft Nuclear Propulsion Power Plant

摘要

The design, fabrication, and attachment of sheet metal in¬sulation pads for protection of fibrous insulation in a high-velocity airstream are described. Three welding processes -resistance stud welding, arc stud welding, and tungsten inert gas welding - were evaluated for attachment of the pads to the structural wall. It was concluded that it is feasible and practi¬cal to insulate hot ducting on an aircraft nuclear power plant for service temperatures of 1600°F and service life of several hundred hours. The tungsten inert gas spot welding process was the most successful process.