Ceramic Foundry Sand, Bauxite Beige Alabaster Building & Walling

SiO₂

5– 15%

Al₂O₃

70–85%

Fe₂O₃

5%max

TiO₂

5%max

MgO

0.5%max

K₂O

0.5%max

CaO

0.5%max

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℃

Liner thermal expansion

(200℃ - 1000℃) 5×10-6/℃

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

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.

Ceramic Foundry Sand

Zircon Sand

Chromite Sand

PH Value

7.65

4.56

8.24

Bulk Density(g/cm)

1.95-2.05

2.9-3.1

2.6-2.7

True Density(g/cm)

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%