Brand Name: | kangqian |
---|---|
Model Number: | AFS75-85 |
SiC Content (%): | 0 |
CrO Content (%): | 0 |
Refractoriness (Degree): | 1770°< Refractoriness< 2000° |
CaO Content (%): | 0.5max |
MgO Content (%): | 0.5max |
Al2O3 Content (%): | 70-85 |
SiO2 Content (%): | 5-20 |
Material: | Alumina Block |
Shape: | Ball |
Place of Origin: | China (Mainland) |
Quick Details
Specifications
amsite Sand
Chemical Composition
SiO2 |
5– 15% |
Al2O3 |
70–85% |
Fe2O3 |
5%min |
TiO2 |
5%min |
MgO |
0.5%min |
K2O |
0.5%min |
CaO |
0.5%min |
Physical Character
Grain shape |
Perfect round ball shape |
Color |
Brown-Black |
Angle index |
1 .1 max |
Size rang |
0.053-3.36mm |
Loose Bulk Density |
1.9 – 2.1 g/cm3 |
Refractoriness |
2050°C |
Liner thermal expansion |
(200°C - 1000°C) 5×10-6/°C |
Main Advantage
1 |
Stabe quality on the chemical composition |
2 |
Perfect grain round shape and various grain sizes |
3 |
High gas permeability |
4 |
High temperature resistance |
5 |
Good break down and fast curing and good release |
6 |
Perfectly round shape with higher fluidity improves fill-in efficiency while reducing the resin level |
7 |
Smooth surface of spherical shape greatly improves collapsibility after pouring |
8 |
Very low thermal expansion ensures fewer or no casting defects such as veining and deformation |
9 |
Excellent thermal conductivity and heat absorption capacity close to that of Zircon |
10 |
Superior refractory equivalent to Zircon and Chromites |
Applications
1 |
Widely used in foundry technique like resin-bonded sand, sodium silicate sand, and clay- bonded sand for sand core and casting mould making |
2 |
Replace chromite sand and widely used in sand core making like jacket core, oil duct core, tappet core of engine. |
3 |
Replace chromite sand for steel casting facing sand and sub-layer of molding sand (backing sand). |
4 |
Widely used as dry sand and sand box for EPC process and V method of casting processes. |
5 |
Widely used as the main raw materials of advanced refractory products (Ladle drainage sand,gravity casting material, casting coating, etc.). |
6 |
Widely used as cleaning sand for copper and aluminum alloy castings. |
PS:The main performance comparison of ceramsite sand,Chromite sand and Zircon Sand
|
Ceramsite Sand |
Zircon Sand |
Chromite Sand |
PH Value |
7.65 |
4.56 |
8.24 |
Bulk Density(g/cm3) |
1.95-2.05 |
2.9-3.1 |
2.6-2.7 |
True Density(g/cm3) |
3.4 |
4.4-4.71 |
3.9-4.8 |
Shape |
spherical |
Irregular |
Irregular |
Binder into water(Waterglass +CO2 Hardness) |
3-4% |
7-8% |
7-8% |