High temperature calcined α alumina powder
High temperature calcined α alumina powder raw powder and micro powder are produced with industrial alumina powder or aluminum hydroxide as raw materials, using high temperature tunnel kiln 1450 ºC calcination processing technology, adding special additives to reduce impurity content, increase α conversion rate, and control the original crystal morphology and it is calcined under sufficient holding time, and the micro powder is grinded by a high-alumina ball mill and classified.
Features: It has the characteristics of high purity, high whiteness, true specific gravity, good thermal stability, uniform particle size distribution and good fluidity. High-temperature calcined α alumina powder is widely used in ceramics, electric porcelain, refractory materials, spark plugs, brake pads, High-aluminum products, high-grade insulating parts, high-purity refractory fibers, high-grade castables, grinding and polishing, artificial stone, etc.
Specification
item |
impurity content≤(%) |
ΑL2O3≥(%) |
LOI≤ |
α- ΑL2O3
≥(%) |
True Density≥(g/cm3) |
| |
Nα2O |
SiO2 |
Fe2O3 |
|
|
|
|
| AT-A |
0.2 |
0.03 |
0.02 |
99.5 |
0.10 |
94 |
3.94 |
| AT-A |
0.3 |
0.04 |
0.03 |
99.3 |
0.10 |
93 |
3.93 |
| Particle Size (D50μm): it can be adjusted appropriately according to your needs |
FAQ
Q: Are you factory?
A: Yes, we are factory.
Q: How is your quality?
A: We have top grade production equipment and precision measuring instruments and we also have engineers and technicians carry out quality control.
Q: Can you supply free samples?
A: 1kgs free sample is available, but freight charges will be at your account, The charges will be return to you or deduct from your order in the future.
Q: What about the payment?
100% T/T in advance, 30% T/T in advance, the balance 70% against the B/L copy, Irrevocable L/C at sight
Q: The MOQ is?
A: MOQ is usually 1 ton, special products can be coordinuted with each other.
Q: Can I visit your factory?
A: Yes, we welcome you to visit our factory at anytime
Q: How about your delivery time?
A: Usually the shipment is within 15 days after confirming receipt of your payment, some products maybe need longer time.
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