Welding on Insulated Place

Abstract

It is often experienced by shipbuilding engineers that inner insulating materials burn up by welding of outfits onto the deck, wall or ceiling of refrigerating cargo chambers, etc. In the paper, from Rosenthal's solution of the differential equation for heat distribution during welding, a theoretical formula is derived which will prevent fire in the above mentioned workings. Experiments inform that some differences exist between the theory and practice, which is, principally, due to the unsatisfactory boundary condition used in the theory.