The porous plug, often referred to as a gas diffuser, or a purging plug is a refractory nozzle installed into the base lining of the ladle that enables an inert gas to be introduced into the ladle to create a stirring action within the molten metal.
Similarly, what are the main results of porous plug experiment?
A porous plug of absorbent cotton or silk was placed in a tube and a constant pressure difference between the two sides of the plug was established so that gas was forced through. … It was found, for most gases, that as a result of the expansion, the temperature of the gas was reduced.
Just so, what is the use of a porous plug?
Porous plugs are used in desulfurization of high sulfur base irons for ductile iron production and in steel desulfurization. Argon gas injection through porous plugs is used in ladle metallurgy for inclusion flotation, temperature homogenization, and degassing of steel melts.