ceramsite sand 400# nice foundry sand resin bonded sand

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seat: Beijing
Validity to: Long-term effective
Last update: 2017-12-12 04:42
Browse the number: 179
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Ceramsite sand
1,Product Introduction
Ceramsite is a kind of refractory particle with diameter of 0.020mm~2.00mm, mainly made of Al2O3·SiO2. It is ball-shaped particle made from fine bauxite ,which is fused in high-temperature electric-arc furnace and sprayed to ball shape.
2,Features of Ceramsite
 1.Perfectly round shape with higher fluidity improves fill-in efficiency while reducing the resin level
2.Smooth surface of spherical shape greatly improves collapsibility after pouring
 3.Low gas evolution and high permeability ensures fewer or no defects
 4.High refractoriness and little thermal expansion ensures no burn-on and deformation
5.Artificial sand ensures stable chemical and physical properties
6.Almost neutral PH value allows both acid and basic binder.
 7.High durability ensures high reusability.
3,Physical and Chemical Properties of Ceramsite
Item Index Item Index(%)
Bulk Density(g/ cm³) 1.79-1.95 Al2O3 >75%
Apparent Porosity(%) <10 SiO2 15.32-21.6
Ambient Compressive Strength (Mpa) 46 Fe2O3 1.5-3.0
Refractoriness (°C) >1800 MgO 0.23-0.7
Refractoriness Under
Load (°C) 1720 CaO 0.16-1.5
Thermal Expansion Rate%(10 minutes under 1000 °C)) 0.13 TiO2 1.99-2.71
4,Applications of Ceramsite
1. Used in all types of foundry technique like resin-bonded sand, sodium silicate sand, and clay-bonded sand.
2. As core sand for making like jacket core, oil duct core and tappet core of engine.
3. Excellent replacement of chromite sand
4. As dry sand of sand box for EPC process and V method of casting process.
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