Project Description
| Product Name | WELL BLOCK, SEATING BLOCK, POROUS PLUG |
| Description: | 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.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.
SH Refractories has engineered 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. |
| Features | Ø Accelerate the physical and chemical property of molten steel Ø Homogenization temperature and composition of molten steel Consistency in shape and size Ø Enhance the purity of steel by floating non-metallic inclusion to the surface using gas |
| Description | WELL BLOCK | SEATING BLOCK | ||||
| Part Number | Unit | STT-90G | STT-90Z | STT-90A | STZ-90 | STZ-85 |
| AL2O3 | % | ≥90 | 90 | 90 | 90 | 85 |
| Al2O3 + Gr2O3 + MgO | % | ≥95 | 92 | 90 | ||
| Al2O3 + ZrO2 + MgO | % | ≥ | 95 | |||
| Al2O3 + MgO | % | ≥ | 95 | |||
| Bulk Density | g/m3 | ≥3.2 | ≥3.2 | ≥3.2 | 3.1 | 3.0 |
| Linear Change | 1650oC x 3h | -0.1, +0.2 | ±0.5 | |||
| Index of Permeability | 0.4MPa/M3/h | 15 – 40 m3/h, tailormade based on customer request. | ||||