- Contact Person : Mr. Zhang Shaofeng
- Company Name : Tangshan Yutong Import and Export Corporation
- Tel : 86-315-3195890,3195891
- Fax : 86-315-3195895
- Address : Hebei,Tangshan,6/F Block B, Orienal Int'l Bldg.152 Jianshe Road
- Country/Region : China
- Zip : 063000
Calcined Flint Clay
Related Product Searches:Calcined Flint Clay,High Quality Flint Clay,Flint Clay AL-1,2-,3,4,5,6
Calcined kaolinite (CK) for precision casting is one kind of natural mullite, made of pure material through high temperature at 1,300°C calcined, and suitable for precision casting.The products have been processed by Japanese equipment with special techniques and for excellent foundry data. Its quality can be favorably compared with molochite.Comparisons for kinds of foundry sands:
CERAMETAL | VALERITE | MOLOCHITE | C.K. | |
AL2O3 | 41.00% | 43.00% | 42.00% | 46.06% |
SIO2 | 54.00% | 53.00% | 56.50% | 51.20% |
Fe2O3 | 1.70% | 1.30% | 1.10% | 1.37% |
TiO2 | 1.70% | 1.60% | 0.07% | 1.32% |
CaO+MgO | 0.60% | 0.40% | 0.37% | |
K2O+Na2O | 0.80% | 0.60% | 2.10% | |
Mullite | 50% | 55% | 55% | 52.00%(50-55) |
Cristobalite | 25% | 20% | 16.4%(15-20) | |
Amorphous phase | 25% | 25% | 45% | 31.6%(25-30) |
Apparement density | 2.45 | 2.6 | 2.7 | 2.69 |
Apparement porosity | 2%max | 3% | 8% | 10.7% |
Hot expansion rate | 5.9×10 | 5.9×10 | 4.44×10 | 5.9×10 |
0-1000 | 0-1000 | 20-1000 | 0-1000 | |
Mohs hardness | 7--8 | 7--8 | ||
P.C.E. | 35Min | 35Min |
Outer packing:25kg/plastic woven bag or paper complex bag1,000kg/jumbo bag