Bubble alumina 0.2-1mm 1-2mm

Bubble alumina 0.2-1mm 1-2mm is an electric arc furnace product made from high purity industrial alumina. The product chemistry is similar to that of white aluminum oxide. Alumina bubbles are formed from molten alumina and then dispersed into hollow balls with different diameters with compressed air. Bubble alumina as aggregate and industrial alumina or corundum as powder make the lightweight refractory castable. The particle size of the bubble alumina aggregate in the castable is the natural particle size.

Bubble alumina 0.2-1mm 1-2mm production process:

  1. More than 98% of the industrial alumina powder is melted at high temperature in an electric arc furnace;
  2. Spray the molten alumina melt into hollow balls with compressed air;
  3. Screen good balls to ensure that the breaking rate is within 10%;
  4. Screen out different sizes;
  5. Packaging, Storage.

Applications of bubble alumina 0.2-1mm 1-2mm:

Alumina bubbles are used in three different types of refractory products—Monolithics, pressed shapes, and loose-fill insulation. Monolithics and pressed shapes are the two major applications in the refractory market.

Chemical compositions of alumina bubble 0.2-1mm 1-2mm:

Chemical compositions Index
Al2O3 (%) ≥ 99
SiO2 (%) ≤ 0.2
Na2O (%) ≤ 0.25
Fe2O3 (%) ≤ 0.15
Maximum Working Temperature (℃) 1850
Granularity (mm)  0.2-1.0 ,1.0-2.0

 

Bubble Alumina(FAQ)

What is melting vs. Sintering?

When processing minerals in a furnace, materials can either be melted or sintered.  When materials are melted during the production process the minerals go from a solid state, to a liquid state, then is re-solidified during the cooling process creating uniformity in the chemistry throughout the entire batch. The sinerting process

Can i get sample in free , how long is the time?

Yes, certainly. We will provide the sample is in free below 5 kgs for free, and the freight cost for free in 1kg. We could arrange the existing samples express delivery immediately. For any special samples requirement, it need max 7 days finished. Usually we send samples by TNT ,FEDEX,

What is the warranty policy?

Firstly, We make sure the quality before the goods to be packed, if clients get the item with Substandard products, We have warranty for our clients,we will ship out the new replacements.

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