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Alumina Ceramics:

In refractory castables, the amount of refractory aggregate is generally 63% to 73%, and the amount of refractory powder is 15% to 37%. For refractory castables, coarse aggregates with a particle size greater than 5mm are generally used; granules ranging from 5 to 0.088 are called fine aggregates. The critical grain size of the aggregate is determined according to different construction methods. Generally, it is 10mm or 15mm. For large structures such as blast furnace foundation pier and ladle castable, 20mm or 25mm particles can be used. In addition, the critical diameter of the refractory aggregate is also different due to different construction methods. At present, the critical diameter of the refractory aggregate tends to increase. It should be noted that when formulating the refractory castable, the gradation of the refractory aggregate particles should comply with The technical requirements in the table, even if the powder is used, it should be screened to meet its requirements before it can be used. The refractory powder is the matrix material of the amorphous refractory material, its grade should be higher than or equivalent to the refractory aggregate, and the fineness requirement is less than 0.09mm or 0.088mm should be greater than 85%. For ultrafine powder, more than 80% should be less than 5μm.

High hardness, high strength, wear resistance, corrosion resistance, high temperacture (1600°), good thermal diffusivity, good insulativity, low cost etc. 

Data Sheet↓

Thermal Shock Resistance: 200 △T°C

Maximum use temperature 1650°C

Dielectric Strength: ＞10 KV/mm

Dielectric Constant: 9.1er

Dielectric Loss Angle(1MHz): 0.0002-0.0003

Volume Resistivity(20°C): ＞1014Ω.cm

7.MOQ is not limited, small quantity is welcome.

8.Vigorous team and good after-sales service

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FAQ

Q: Are you trading company or manufacturer ?
A: We are factory.
 
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A: Generally it is 5-10 days if the goods are in stock. or it is 15-30 days if the goods are not in stock, it is according to quantity.
 
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A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
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A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.