Basalt has excellent performance of acid and alkali resistance, and epoxy resin is used at the juncture.
1. Wear resistance
experiment conditions
size:20.5*25*19cm | material:Brown melted Aluminum | particle size:46items |
rotary speed:6m/sec | pressure:4kg | time:60min |
2. corrosion resistance
Basalt has excellent performance of acid and alkali resistance, and epoxy resin is used at the juncture.
Comparison of dissolubility rate
| temperature | concentration | HCL | NaOH | H2SO4 | HF |
Cast basalt | 60°C | 50% | Trace | Trace | Trace | 4% |
Steel plate | 60°C | 15% | 15% | Trace | 37% | 10% |
3,thermal shock resistance
Cast stone composite pipe has good reputation for its reliability and safety at fixed temperature under 400°or even at thermal shock. It could be repaired without any change in reliability and safety by water glass clay whenever it is slightly damaged.
4,Impact resistance
Cast stone has the highest impact resistance among cemarics. |
5,Slip property
The property of slip helps to decrease wear, which is 2 or 3 times than that of steel , thus improving transportation capacity while preventing dusts.
Cast stone tiles can also be used as transportation pipe.
6,Main physics and chemistry performance
Technical property | Index |
Specific gravity (g/cm3) | 3.0~3.05 |
Pressure strength (Mpa) | 554~661 |
Break strength (Mpa) | 62.0~76.9 |
Impact strength (kJ/m2) | 1.56~1.66 |
Wear strength (g/cm2) | 0.07~0.09 |
Webster hardness (kg/mm2) | 720~860 |
Elastic modulus(Room temperature) Mpa | 1.7×105 |
Coefficient of expansion(Room temperature to 60°C) | 8.92×10-6 |
Water absorption | Below 0.1% |
Softening point | 1197°C |
Heat conduction rate | 0.700kcal/mnr°C(at250°C) |
Volume intrinsic impedance | 109Ω·m(0°C,100V) |
7,Chemical composition(weight%)
SiO2 | 43.13~45.12 | MgO | 8.65~10.47 |
Al2O3 | 12.50~13.52 | K2O | 1.40~1.75 |
Fe2O3 | 8.64~9.50 | Na2O | 4.62~5.28 |
TiO2 | 2.02~2.62 | FeO | 4.82~6.25 |
CaO | 9.05~10.22 | P2O5 | 1.10~1.38 |
