Home > Products > Monolithic Refractories > Ramming Mass > Silica Ramming Mass
Capacity:3000 tons per month
Raw Material:Quartz sand
Package:Export ton bag
Product Introduction
Silica ramming mass is made by mixing high-purity microcrystalline quartz sand, powder, high-temperature sintering agent and mineralizer. The silica ramming mass has a short oven time, has good volume stability, thermal shock stability and high high temperature strength.
Features
1.Good stability. 2.Good slag resistance. 3.Good fire resistance and resistance to melt erosion. 4.Good chemical stability.
Application
It is mainly used for smelting bronze and red copper in industrial frequency furnace and intermediate frequency furnace.
Technical Data
| Item | CN-1 | CN-2 | CN-3 | CN-4 | CN-5 | |
| Chemical composition（%） | SiO2≥ | 95 | 96 | 96 | 97 | 90 |
| Al2O3≤ | 0.7 | 0.6 | 0.6 | 0.5 | 0.4 | |
| Fe2O3≤ | 0.5 | 0.5 | 0.4 | 0.4 | 0.8 | |
| Cold crushing strength（Mpa) | 1300℃×3hAfter firing at | 15 | 15 | 10 | 10 | 25 |
| Apparent porosity （％） | 1300℃×3hAfter firing at | 26 | 26 | 25 | 25 | 23 |
| Linear changing after burnt（％） | 1300℃×3hAfter firing at | 0～+1.6 | 0～+1.2 | 0～+1.0 | ||
| Bulk density （g/cm3） | 1300℃×3hAfter firing at | 2.0 | 2.0 | 2.1 | 2.1 | 2.2 |
| Refractoriness(℃) | 1630 | 1650 | 1650 | 1680 | — | |
| Max. grain size of aggregate(mm) | 5 | 4.5 | 4.5 | 4.2 | 4.2 | |
| Amount for construction(kg/m3) | 2300 | 2300 | 2300 | 2400 | 2400 | |
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