Fused Bubble Alumina Castable For Brick ISO SGS Certificate Approved
Bubble Alumina
Product Description
Refractory White Corundum Hollow Ball Fused Alumina Bubble is a new type of high temperature insulation material which is made from industrial aluminum treated by smelting in an electric furnace. The crystal form is a-Al2O3 micro crystals.
Refractory White Corundum Hollow Ball Fused Alumina Bubble can be made into various shpes with the highest temperature 1800 ℃, which is of high mechanical strength, and the volume density is only one-half of corundum products.
Fused Bubble Alumina is produced by blowing the melt of high purity Bayer process alumina in a controlled atmosphere to produce hollow spheres. Due to its low density and extremely low thermal conductivity fused alumina bubble is ideal for high alumina based Insulating Bricks and castables.
Physical And Chemical Properties
|
Index Properties |
Type 1 | Type 2 | |
| Chemical composition (%) | Al2O3 | 98.5min | 99min |
| SiO2 | 0.5-1.2 | 0.3max | |
| Fe2O3 | 0.1max | 0.1max | |
| Na2O | 0.4max | 0.4max | |
| Packing density (g/cm3) | 0.5-1.0 | ||
| Damaged rate(%) | ≤10 | ≤10 | |
| Refractoriness(°C) | 1800 | ||
| Particle size |
5-0.2mm, 0.2-1mm,1-3mm,3-5mm, 0.2-0.5mm,1-2mm,2-3mm |
||
| Test standard | GB/T3044-89 | ||
| Packing | 20kg/plastic bag | ||
| Usage | Refractories | ||
Product Performance
• Extreme hardness
• Good resistance to thermal and mechanical shock
• Excellent abrasion resistance
• High thermal conductivity
Package
1 ) . In 1MT Big Bag
2 ) . 25KG PP Big Bag In 1MT Big Bag
3 ) . Custom-made packing as required
FAQ
Q : Do you provide free samples?
A : Of course! Customized samples are needed. The mass production will be started after we get your confirmation on this sample. However, shipping costs are paid by you.
A : It usually needs about 7-14 days after receiving the workable payment.
Q : What is your payments term?
A : We can accept 30% deposit, 70% balance to be against the BL copy or by LC, or other payment terms.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.