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  • Address: Mihe Town, Gongyi Country, Zhengzhou City, He'nan Province, China
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Ceramic Foundry Sand

Add Date:2011-03-01 01:17:27
 

This new developed specific Foundry Sand is produced from the special selected high quality refractory raw material at very high temperature at 2,300 – 2,500℃. Our these ACFS sand has excellent solid cores with high strength and very low resin addition rates. The materials has excellent crystalline with formula is 5Al2O3-SiO2.

Application:

Shell moulds and cores for casting gray, Malleable and nodular cast iron, alloyed steel and carbon steel, non-ferrous metals, etc.

The Main Advantage

* Stabe quality on the chemical composition

* Perfect grain round shape and various grain sizes

* High gas permeability

* High temperature resistance

* Good break down and fast curing and good release

 

       Chemical Composition

SiO2
5– 15%
Al2O3
75–85%
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
0.075 – 2.0 mm(AFS 40 – AFS 130)
Loose Bulk Density
1.9 – 2.1 g/cm3
Refractoriness
2050℃
Liner thermal expansion
(200℃ - 1000℃) 5×10-6/℃
Thermal conductive
(1000℃) 5.0W/(M℃)
PH
6.5 – 7.5



 Size Distribution (Typical)

μm
Mesh
#40
#60
#75
#100
600
26
5%min



425
36
20-40%
5%min


300
50
35-55%
10-30%
10%min

212
70
0-20%
30-50%
5-25%
3%min
150
100
10%min
15-35%
25-45%
10-20%
106
140
5%min
0-20%
20-40%
35-55%
75
200

5%min
10%min
15-35%
53
280


5%min
10%min
PAN



2%min
AFS
40±5
60±5
80±5
110±5
GFN
65±10
105±10
140±10
200±10
 

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