Henan Hongtai Kiln Refractory Co.,Ltd.
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Cathode Paste Cold Ramming Paste Used in Joints Between Cathode Graphite Blocks Peripheral Seam
Ramming pastes is widely used in aluminum reduction cell, blast furnace, smelting furnace, industrial silicon smelting,ferroalloy furnace and other industrial furnaces. The main purpose, both in the joints between the cathode blocks and in the peripheral seam, is to fill the voids between the prebaked blocks and prevent metal and bath from penetrating the cathode. Leakage of metal and electrolyte damages the cathode and may lead to premature pot failure.
Ramming paste is a critical part of the cathode. Consistent and high-quality ramming paste products installed according to optimised procedures are required to provide a basis for improved operation and longer pot life.
| Property | Unit | Mean value | |
| Volatile Matter | % | <24.0 | |
| Ash | % | <8 | |
| Bulk density | Green mix | g/cm3 | >1.7 |
| Baked mix | >1.55 | ||
| Open porosity | Green paste | % | <5 |
| Baked paste | <18 | ||
| Thermal Conductivity@30ºC | Green paste | W/mK | <6 |
| Baked paste | <8 | ||
| Granularity | mm | <8mm | |
| Max Operaturing Temp. | ºC | 1800 | |
