chamotte sand/flour for precision casting

详情

Chamotte sand: ****0,****0, ****0, *****0 mesh.
Chamotte flour: ***0, ***0, ***5 mesh. 
Mainly used for precision casting industry.

Characteristics:

1. High refractoriness.
2. Aluminum content high, the iron content low.
3. High volume density.
4. Thermal expansion coefficients of small.
5. Physicochemical stability.
6. Fully calcined
7. Dust content low
8. The specification standards.

 Advantages:

 1. Easy out of shell.
2. No deformation.
3. No reduced scale.
4. Good brightness , Good finish .
5. Product rate is high. 

Physical and chemical index:

SiO2 ****3%
A*2O3 ****8%
Fe2O3≤1.0%
TiO2≤1.0%
CaO+MgO ***0°C
MOHS HARDNESS 7.**8.0
PH 6.**8.0
BULK DENSITY≥2.5
MOISTURE≤0.3%
ASH CONTENT≤0.3%
L.O.I.≤0.*5%

Size:
Size of Chamotte sand: ****0,****0, ****0 ,****0,*****0 (mesh)
Size of Chamotte flour: ***0,***0,***5 (mesh)

 Applications:

 1) Product is suitable for Stainless steel, alloy steel, carbon steel, heat-resistant steel, titanium alloy, nickel alloy, aluminum alloy, cast iron, cast copper complex precision castings and big, medium and small castingsl, etc.

 2) Product is suitable for precision casting ,Silicon Sol investment casting, lost wax casting ,Cast steel, cast copper, Vacuum casting, plaster filler v-process, casting coatings, casting mold shell, etc.