Products discription
1.Introduction
The main raw material of brown fused alumina is high quality bauxite, which is fused with the carbon material and scrap iron in the electic furnace under the high temperature of above 2200°C.The product is characterized by low expansion coefficient, high refractoriness, good thermal and chemical stability.
2. Grain size commonly used
Refractory: 0-1mm, 1-3mm, 3-5mm, 5-8mm ,200#-0, 325#-0.
Abrasives: F24-F60.
Sandblasting abrasive:F10-F240.
Precision casting: F80-100, F100-F120.
Ceramic & electronic polishing:F240-800.
3.Physical properties of Brown Fused Alumina
Item | Color | Color System | Mohs Hardness | Melting Temperature(°C) | Refractory Temperature(°C) | True Density( g/cm3) | Magnetic Material |
Specification | Dark Brown |
Alpha-alumina trigonal system | min9.0 | 2050°C | 1800°C | min3.90 | max0.01%
|
4.Chemical index of Brown Fused Alumina
Purpose | Specification | Chemical composition(%) | Magnetic material content(%) | ||||
Al2O3 | Fe2O3 | SIO2 | TIO2 | ||||
For abrasive | F | 4#—80# | min95 | max0.3 | max1.5 | max3.0 | max0.05 |
90#—150# | min94 | max0.03 | |||||
180#—240# | min93 | max0.3 | max1.5 | max3.5 | max0.02 | ||
W | 1#—63# | min2.5 | max0.5 | max1.8 | max4.0 | — | |
For refractory | Size sand | 0—1mm | min95 | max0.3 | max1.5 | max3.0 | — |
1—3mm | |||||||
3—5mm | |||||||
5—8mm | |||||||
Fine powder | 200#—0 | min93.5 | max0.5 | max1.5 | max3.5 | — | |
325#—0 | |||||||
Factory advantages:
1.The factory is located in the bauxite production base of Henan province.
2.Advanced technique and many years of production experience.
3.Professional and efficient service.
4.Samples for free.
