Mullite sand,Mullite powder,Mullite sand for investment casting
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 size 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:
Item/ Grade | Index |
ZYM-45 | ZYM-44 | ZYM-43 | ZYM-42 |
AL2O3 % | 45-47 | 44-46 | 43-45 | 42-45 |
Fe2O3 % | 0.8-1.2 | 1.2-1.5 | 1.5-2.0 | 2.0-3.0 |
SiO2 % | 49-52 | 50-53 | 50-53 | 51-54 |
Ti02 % | 0.8 | 0.9 | 1.0 | 1.2 |
K2O+Na2O % | 0.3 | 0.4 | 0.4 | 0.5 |
Ca0+Mg0 % | 0.5 | 0.5 | 0.6 | 0.7 |
Bulk density g/cm3(min) | 2.55 | 2.53 | 2.50 | 2.46 |
Refractoriness °C (min) | 1770 | 1760 | 1740 | 1720 |
Mullte % (min) | 65 | 60 | 55 | 45 |
Particle Size:
Size of Mullite sand: 8-16,16-30,30-60,30-80,60-80,80-120 (mesh)
Size of Mullite flour: -200 ,-250 ,-270 ,-325 (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 castings, 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.
About our company:
Our company is the specialized manufacturer and exporter of Mullite sand, Mullite flour, Zircon flour , Zircon sand and Colloidal Silica in China. Primarily export to South Korea, Indonesia, Thailand, Vietnam, Israel, Japan and the United States.