Porous Plug Set

WELL BLOCK, SEATING BLOCK, POROUS PLUG FOR LF, VOD, AOD SOLUTIONS

Porous Plug is a refractory used for Secondary Refining Equipment such as LF, AOD, VOD, etc.

that plays a vital role in injecting Argon or Nitrogen gas into molten gas. The main functions are summarized below.

1. Accelerate the physical and chemical property of molten steel

2. Homogenization temperature and composition of molten steel

3. Enhance the purity of steel by floating non-metallic inclusion to the surface using gas

Ladle-tapping and stress induced by cold-gas blown into the Plug causes spalling and clogging problem in Purging Plug. We have strived to develop and improve the quality of Purging Plug for LF Ladle.

As a result, we developed Al2O3-Spinel product with stable Slit, minimum hot-deformation and excellent spalling resistance. Our Plug is designed with optimal Slit structure to prevent backflow of molten steel and to ensure sufficient gas flow. It is excellent in argon stirring and high in resistance against erosion.