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Product Details:
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| Bulk Density: | 2.35-2.45g/cm3 | Refractoriness: | 1752min. |
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| Application: | Refractory Products Manufacturing | Al2O3 Content: | 38-48.5% |
| SiO2 Content: | 51-55.2% | Fe2O3: | 0.2-0.8% |
| High Light: | 1752min. Mullite Sand,Mullite Sand For Refractory Products Manufacturing,1752min. Mullite powder |
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Premium White Mullite Sand And Mullite Powder For Refractory Products Manufacturing
1. Mullite Sand Introduction
The density of mullite is generally greater than 2.5g/m3, the true specific gravity is 2.6g/cm3, the water content is less than 0.03%, and the fire resistance is greater than 1750 ℃. Under the condition of high temperature burning, its weight will be reduced by 0.3% and not more than 0.4%, which shows the stability of mullite's chemical properties. Its pH value is between 7 and 9, and the hardness of the shell is greater than 8 MPa.
2. Mullite Sand Specifications
| Item/ Grade | Specifications | |||
| E-45 | E-44 | E-43 | E-42 | |
| Al2O3 % | 45-48 | 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 |
| CaO+MgO % | 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 Phase% (min) | 65 | 60 | 55 | 45 |
3. Mullite Sand General advantages
Ø Easy out of shell.
Ø No deformation and No reduced scale.
Ø Good brightness and Good finish.
3. Mullite Sand Characteristics
Ø High refractoriness.
Ø Aluminum content high, the iron content low.
Ø High volume density.
Ø Thermal expansion coefficients of small.
Ø Physicochemical stability.
Ø Fully calcined and Dust content low
Ø The specification standards.
4. Mullite Sand Particle sizes Available
Ø Size of sand: 8-16,16-30,30-60,30-80,60-80,80-120 (mesh):Used for investment casting.
Ø Size of powder: -200mesh,-270mesh,-325mesh: Used for investment casting and refractories.
Ø Size of particle: 0-1mm,1-3mm,3-5mm,5-8mm,8-15mm,0-5mm,0-50mm:Used for refractories.
5. Mullite Sand Applications
The product can be used for complex casting of carbon steel, stainless steel, heat-resistant steel.
1.Grain shape of the foundry sand is close to the true round with smooth surface, good fluidity and fillibility, easy to be filled ,it can get good formability and strength of mold.
2.Foundry sand has a good collapsibility, easy to carry out the sand cleaning operation. The usage amount of binder is more less than other types of sand.
3.Compounding moulding sand with foundry sand, casting will not have defects of expansion cause it has low thermal expansion rate.
4.Producing castings with foundry sand will have high accuracy ,less fracture and surface defects, what's more it can also improve the yield of casting.
Contact Person: Jason Chen
Tel: 86-18603794999
