Porous Plugs are specialized refractory components installed in the bottom of steel ladles to inject inert gases, typically argon, into molten steel during secondary metallurgy operations. These plugs contain a controlled porous structure that allows uniform gas permeation while maintaining the mechanical strength and refractory integrity required to withstand extreme steelmaking conditions.
The introduction of inert gas through Porous Plugs promotes bath stirring, improves temperature and chemical homogeneity, accelerates inclusion flotation, and enhances metallurgical refining efficiency. Manufactured from high-quality alumina, spinel, magnesia, or other advanced refractory compositions, Porous Plugs are designed to provide stable gas flow, resistance to thermal shock, and long service life throughout multiple refining and casting cycles.