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Monolithic stopper
Characteristics：Adopting excellent white corundum, flake graphite etc, and produced with scientific process and strict technology, which has perfect anti-thermal shock, anti-corrosion, anti-erosion and 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 molten steel into the inner hole of stoppers.
6、The head of stopper adopts compound materials, which has better anti-corrosion property.
Specification
|
Items |
Body |
Stopper Rod |
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|
Alumina-Graphite |
Magnesia-Graphite |
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|
Chemical composition |
Al2O3 |
≥45 |
≥75 |
--- |
|
C + SiC |
≥25 |
≥10 |
≥10 |
|
|
MgO |
--- |
--- |
≥75 |
|
|
Bulk density (g/cm3) |
≥2.5 |
≥2.75 |
≥2.7 |
|
|
Apparent porosity (%) |
≤20 |
≤16 |
≤16 |
|
|
Cold Crushing Strength (MPa) |
≥20 |
≥25 |
≥20 |
|
|
Modules of Rupture (MPa) |
≥7 |
≥7 |
≥5 |
|
|
Thermal shock resistance (sequence) |
≥5 |
≥5 |
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