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)

How do i know what abrasive is best for my application?

An abrasive’s shape, hardness, and particle size really determine the effectiveness of a MicroBlasting application. Each application is unique, and abrasive selection depends on the composition of the targeted part and the application’s desired result. See our Abrasive Media Selection Guide to choose the most appropriate abrasive for your application.

What does the form factor (grain shape) indicate?

The description of the grain shape can range from “angular” to “acicular” to “spherical”. When the value of the dimensionless form factor is 1, the grain is spherical. The smaller the form factor, the pointier the grain.

How do i prevent moisture contamination in the abrasive?

Moisture contamination is the number one reason customers call Technical Support. Fortunately, it is usually preventable. There are 4 key ways to keep your abrasive free of moisture:1.Store abrasive properly and always make sure bottles are tightly closed when not in use.2.Keep abrasive in a cool dry location with minimum

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