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Ceramic sand

        Ceramic sand is suitable for resin sand casting,sodium silicate bonded sand, lost foam casting, V-process casting, shellmolding, precision casting and producing resin coated sand. And it is widelyapplied in casting of aerospace, ship, railway locomotive type, wind energytype, pump and valve, machine tool, engine, and auto. What’s more, ceramic sandis maturely used in other fields as fire-proof coating, ladle filler sand,soluble core, and sand blasting.

 

    Coated sand sand core               Coated sand mold                    Nobake mold surface                     Lost foam mold


Physical properties:

1. Refractoriness: ≧1800℃

2. Bulk density: 1.65-2.05 (g/cm3)

3. Thermal expansion: 0.13% (10minutes at1000℃)

4. Angle factor: ≦1.1, very spherical


Composition:

Composition

Al2O3

Si2O3

Fe2O3

TiO2

CaO

MgO

K2O

Na2O

%

>70

15~25

<3

<4

~0.20

~0.34

~1.33

~0.20


Size distribution:

MESH

um

1700

850

600

425

300

212

150

106

75

53

Pan

AFS

Range

SPEC

10

20

30

40

50

70

100

140

200

270

Pan

20-40

SD200#

2

15-40

30-55

15-35

3

15-25

30-50

SD300#

10

25-45

35-55

5-15

5

2

25-29

40-70

SD400#

10

25-45

20-40

15-25

7

5

35-39

40-100

SD500#

3

10-25

25-40

25-45

10-20

10

5

45-55

50-100

SD600#

10

10-30

30-50

15-35

15

5

2

1

55-65

50-140

SD650#

8

10-25

20-40

20-40

5-20

7

2

1

60-70

70-140

SD750#

10

10-25

25-45

15-35

15

5

2

75-85

100-200

SD1000#

3

10-30

35-55

15-35

10

5

95-115

140-270

SD1500#

5

5-25

40-60

25-40

15

155-175

6-20

NFS

Lost Foam Casting