From what I understand the general idea is to lower the temeperature and keep it lower to prevent the reaction that prooduces the oxigen (and thus allow the bur

From what I understand the general idea is to lower the temeperature and keep it lower to prevent the reaction that prooduces the oxigen (and thus allow the burning and the re-ignition. The gasket sealed steel case may offer some sort of mechanical protection from the flames, and very likely allows to gain some time, but it seems not like it will prevent or extinguish the fire. And maybe there will be the need of a pressure relief valve, like those on pressure cookers to avoid the possible building inside of too much pressure, or possibly in case of fire the gasket will melt and let the case leak.