LMM TOTAI offer a complete product and service portfolio for all steelmaking processes.
From basic and non-basic bricks and mixes, slide gate plates, isostatic products and prefab components to special machinery, mechanisms and repair systems.
Monolithic Stoppers
Monolithic Stoppers
Adopting excellent white corundum, flake graphite etc,andproduced with scientific process and strict technology, whichhas perfect anti-thermal shock,anti-corrosion，anti-erosionand anti-oxidation properties.
1.Gasket
2.Steel nuts connection prevents the stoppers from coming off.
3.The monolithic body is Al-C materials with perfect anti-thermal shock property.
4.Anti-oxidation coating prevents the products from oxidation .
5.Porous plug, even ventilation, to stop the molten steel into the inner hole of stoppers
6.The head of stopper adopts compound materials, which has better anti-corrosion property.
| Items | Body | Stopper Rod | ||
| Alumina-Graphite | Magnesia-Graphite | |||
| Chemical Composition | Al2O3 | ≥45 | ≥75 | |
| MgO | ≥75 | |||
| C+SiC | ≥25 | ≥10 | ≥10 | |
| Bulk Density | ≥2.60 | ≥2.75 | ≥2.70 | |
| Apparent Porosity | ≤20 | ≤16 | ≤16 | |
| Cold Crushing Strength | ≥20 | ≥25 | ≥20 | |
| Modulus of Rupture-Room Temp | ≥7.0 | ≥7.0 | ≥5.0 | |
| thermal shock resistance(sequence) | ≥5 | ≥5 | ||