Calcined Alumina, Fine Powder of Calcined Alumina for Refractory Materials, Abrasives

• Refractoriness (℃): 1580< Refractoriness< 1770
• Feature: Long Time Materials
• Type: Heat-Resistant Material
• Shape: Powder
• Material: Alumina Powder
• Appearance: White Powder
• Model NO.: NT003
• Purity: 99%Min
• Application 1: Refractory Raw Material
• Application 2: Ceramic
• Application 3: Glass
• Application 4: Polishing Materials
• Sample: Free Sample
• Transport Package: 25kgs Bag or Jumbo Bag
• Specification: fine powder or block
• Trademark: NAITE
• Origin: China
• HS Code: 281820000
• Production Capacity: 2000tons Per Month

Product Description

Product Description

Calcined alumina for refractory materials

 

 

High-temperature calcined alumina powder takes industrial aluminum hydroxide or industrial alumina as raw material,which is calcined at appropriate temperature into α-type alumina product with stable crystal form; Using calcined α-type alumina as raw material, it is made by ball milling of alumina micropowder.

 

High temperature Alpha-calcined alumina raw powder - micro powder (low nano, medium nano, ordinary), uniform particle size, easy to disperse, strong fluidity, good sintering performance. 

High temperature Alpha-calcined alumina raw powder is the basic raw material for the production of heat-resistant and corrosion-resistant products, such as high-alumina refractory materials, refractory bricks, advanced ceramic products, electric porcelain devices, steel charge, high temperature friction materials and raw materials in polished wear-resistant products.

 

Product Parameters

 

 

Typical Value	NT-1	NT-2	NT-3
Na2O (%)	0.06	0.12	0.04
Fe2O3 (%)	0.02	0.04	0.04
MgO(%)	0.01	0.02	0.01
SiO2(%)	0.04	0.06	0.05
CaO (%)	0.02	0.02	0.02
Specific Surface Area        /BET(m2/g)	0.85	0.93	1.28
D50 Malvern(μm)	4.8	5.2	3.7
D90 Malvern(μm)	11.3	22.7	9.2

 

Detailed Photos