White fused alumina (WA)
1. White Fused Alumina (WA)
White Fused Alumina is made from Aluminium Oxide powder. It is electrically fused in high temperature. It is white. Comparing with Brown fused alumina, its hardness is a little higher, but its toughness is little lower. Our WA has the features of stable quality, well-distributed particle size composition, low magnetic substance content, high bulk density and toughness, and high cleanliness, etc.
The abrasive tools made by WA are suitable for grinding high-carbon steel, high-speed steel and chilled steel, etc. In addition, it can be also used for polishing materials, precision casting sand, spraying materials, chemical catalyst carrier, special ceramics and high-grade refractories, etc.
|Chemical Composition Gritsize range||AL2O3(%)||Na2O(%)|
|Crystal size (um)||Truedensity (ɡ/cm?)||Bulkdensity (ɡ/cm?)||Hardness ㎏/mm?|
Standard： FEAP- F (For Bonded abrasives),
FEPA- P (For Coated abrasives).
Grit available: Grit FEPA F12 – F220#.
Grit FEPA P12-220#.
2. White fused alumina -Heated & Ceramic coated
WFA-HCC is ceramic coated with ferric oxide on the surface by a specific processing. It is made from high quality white fused alumina calcined at high temperature through intensive deep processing. The product features a large specific surface area, stronger hydrophilicity, even particle size ,higher purity, stronger binding power ,cutting effciency and good heat dispersion performance , it’s main performance indexes are as below: compared with normal BFA, BFA-HCC micro-hardness increases 10% ,toughness increases 10%, hydrophilicity increase 3.5 times , grinding and cutting quantity increases 3% and efficiency increase 30%-50% .
It is the best choice and very popular for making top grade resin cut-off wheels.
Standard： FEAP F (Bonded abrasives)
Grit available: Grit F12 – F220#. Other sizes are also available on request.