Brown Fused Alumina Abrasive Manufacturer for Polishing

1. Description:

Brown Fused Alumina is a product manufactured by gradual melting reduction of calcined bauxite in an electric arc furnace at high temperature (approximately 2000 degrees Celsius). Its chemical composition consists mainly of Al2O3 (94.5-97%) and vestigial amounts of TiO2, SiO2, Fe2O3, CaO and MgO.

Brown Fused Alumina is characterized by good toughness, high mechanical resistance and hardness (9 in Mohs scale). The micro hardness of the material reaches about 1900kG/mm2.

Specific gravity (density) equals 3.90+/-0.05cm3. Bulk density depending on size equals 1.52-1.87g/cm3. It has relatively high thermal conductivity and low thermal expansion.

It is hard and tough material, which is the perfect material specifically manufactured to be used for general abrasive applications in bonded and coated abrasive tools, and lapping and polishing processes.

Brown Fused Alumina is used as a raw material in the manufacture of high alumina refractory.


2. Applications:

Wet and dry blasting
Grinding, lapping and polishing media
Resin bonded grinding wheels and segments
Resin bonded abrasive and coated abrasive products
Wear-resistant and fire-proof products
Friction products and abrasion resistance ground
Producing mold of precision casting

3. Grit Size Available (P, F):

P series: P8, P10, P12, P16, P24, P30, P36, P40, P50, P60, P80, P100, P120, P150, P180, P220, P240, P280, P320, P360, P400, P500, P600, P800, P1000, P1200, P1500, P2000, P2500, P3000

F series: F4, F8, F10, F12, F14, F16, F22, F24, F30, F36, F40, F46, F54, F60, F70, F80, F90, F100, F120, F150, F180, F220, F230, F240, F280, F320, F360, F400, F500, F600, F800, F1000, F1200

Generally, we use 7 washing and 5 sieves for sieving the material.


4. Packing:
PVC woven bag and paper bag: 25kg or 25kg bags to be put in 1MT bag
Jumbo bag (1 MT bag): 90*90*90cm, for 1 Ton