Content :

Chrome ore, its main chemical composition of cr2o3, this kind of sand heated volume stability, high thermal conductivity, when in contact with the molten metal, not only has good resistance to basic slag, not with ferric oxide and other chemical reactions, and itself has the characteristics of the solid phase sintering, can be a very good prevent the infiltration of molten metal, avoid to touch sand defects, suitable for all kinds of stainless steel, alloy steel and carbon steel gradually shape the original sand core and coating.
Physical properties
Bulk density: 2.5-3 g/cm3
Volume density: 4.0 ~ 4.8 g/cm3
Color:bright black
PH : 7-9
Sintering temperature > 1800 C
The melting point of 2180 C
Conventional production size
Domestic conventional grain size: 20-60 mesh 20-70 mesh, 40-70 mesh, 50-100 mesh
70-140 mesh, 200 mesh, 325 mesh
Export regular granularity:
AFS25-35 AFS25-30 AFS30-35 AFS35-40 AFS40-45 AFS45-50 AFS40-50 AFS50-55 AFS55-60 AFS60-65
The main purpose
Casting materials 2. Refractory materials 3. Modeling 4. Filling 5. Drainage 6.sandblasting