Ceramic Sand features:
1, the thermal expansion coefficient is small, performance can be comparable with the zircon sand, sand with its preparation, no expansion of casting defects.
2, sand for the ball, good fluidity, easy and good ventilation
3, smooth surface, compact structure, making the binder cover evenly
4, ceramic materials, sand neutral, acid, alkali binder apply
5, re-use regeneration performance, cost-effective
6, high refractoriness, easy collapsibility
7, thermal conductivity, good stability, do not crack
8, the application of a wide range of silicate sand, resin sand casting and brass, polished aluminum parts cleaning
The main numerical of Nice foundry sand compare with Zircon sand ZrSiO4 and Chromite sand
| Nice foundry sand | Zircon sand ZrSiO4 | Chromite sand |
PH | 7.65 | 4.56 | 8.24 |
Pile of density (g/cm3) | 1.95-2.05 | 2.9-3.1 | 2.6-2.7 |
True density (g/cm3) | 2.9 | 4.4-4.71 | 3.9-4.8 |
shape | spherical | irregular | irregular |
Binder addition amount (Sodium silicate +CO2 sclerosis ) | 3-4% | 7-8% | 7-8% |
Oil well used ceramic foundry sand