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ceramsite foundry sand casting sand cast material

ceramsite foundry sand ceramsite foundry sand

casting sand refractory material


ceramsite foundry sand 10-30 mesh casting sand cast material
Ceramsite sand
1、Product Introduction
Ceramsiteis 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

  • Perfectly round shape with higher fluidity improves fill-in efficiency while reducing the resin level
  • Smooth surface of spherical shape greatly improves collapsibility after pouring
  • Low gas evolution and high permeability ensures fewer or no defects
  • High refractoriness and little thermal expansion ensures no burn-on and deformation
  • Artificial sand ensures stable chemical and physical properties
  • Almost neutral PH value allows both acid and basic binder.
  • High durability ensures high reusability.

3、Physical and Chemical Properties of Ceramsite

tem

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

  • Used in all types of foundry technique like resin-bonded sand, sodium silicate sand, and clay-bonded sand.
  • As core sand for making like jacket core, oil duct core and tappet core of engine.
  •  Excellent replacement of chromite sand
  • As dry sand of sand box for EPC process and V method of casting process.