Mullite Sand
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Product Information
Mullite sand is an aluminum silicate refractory material, generally used in stainless steel precision casting process. The refractoriness is about 1750 degrees. The higher the aluminum content in mullite sand, the lower the iron content, and the smaller the dust, the better the quality of the mullite sand product. Mullite sand is made by high-temperature sintering of kaolin.
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Product Index
Item
|
Specification
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Supper Grade
|
1
|
Al2O3 %
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43-50
|
2
|
SiO2%
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47-53
|
3
|
Fe2O3%≤
|
2.1
|
4
|
K2O+Na2O%≤
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0.8
|
5
|
CaO%≤
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0.5
|
6
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TiO2%≤
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0.3
|
7
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Density(g/cm3)≥
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2.45
|
Application
1. Mullite sand is suitable for large, medium and small precision castings such as stainless steel, alloy steel, carbon steel, heat-resistant steel, titanium alloy, nickel alloy, aluminum alloy, cast iron, cast copper, etc.
2. Mullite sand is suitable for precision casting, silica sol precision casting, lost wax casting, cast steel, cast copper, vacuum casting, gypsum filler V method casting coating, casting mold shell, etc.
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Reference Process For Precision Casting Shell Making
|
||
The general surface slurry, zirconium powder
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325 mesh+silica sol
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Sand: zirconium sand 120 mesh
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Back layer slurry
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325 mesh+silica sol+mullite powder 200 mesh
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Sand: mullite sand 30-60 mesh
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Reinforcement layer
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Mullite powder 200 mesh+silica sol
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Sand: mullite sand 16-30 mesh
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Sealing slurry
|
Mullite powder 200 mesh+silica sol
|
_
|
Our Factory
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Package&Warehouse
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Company Profile
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Shandong Robert New Material Co., Ltd. is located in Zibo City, Shandong Province, China, which is a refractory material production base. We are a modern enterprise that integrates the research and development, production, sales, kiln design and construction, technology, and export refractory materials. We have complete equipment, advanced technology, strong technical strength, excellent product quality, and good reputation. Our factory covers over 200 acres and an annual output of shaped refractory materials is approximately 30000 tons and unshaped refractory materials is 12000 tons.
Our main products of refractory materials include: alkaline refractory materials; aluminum silicon refractory materials; unshaped refractory materials; insulation thermal refractory materials; special refractory materials; functional refractory materials for continuous casting systems.
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Frequently Asked Questions
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We are a real manufacturer, our factory is specialized in producing refractory materials for more than 30 years. We promise to provide the best price, the best pre-sale and after-sale service.
For each production process, RBT has a complete QC system for chemical composition and physical properties. And we will test the goods, and the quality certificate will be shipped with the goods. If you have special requirements, we will try our best to accommodate them.
Depending on the quantity, our delivery time is different. But we promise to ship as soon as possible with guaranteed quality.
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There is no limit, we can provide the best suggestion and solution according to your situation.
We have been making refractory materials for more than 30 years, we have strong technical support and rich experience, we can help customers design different kilns and provide one-stop service.