BFA - Calcined
BFA - Calcined
Description
Kowa’s Calcined BFA is a process of high-temperature calcination at 1050℃ during the production of original BFA, followed by quenching treatment. 1050℃ temperature calcined BFA has the advantages of very low expansion coefficient, good hydrophilicity, improved toughness, and significantly reduced magnetic properties, which can improve the grinding efficiency and accuracy of grinding tools.
Applications
Vitrified Grinding Wheels
Physical Properties
Colour
Shape
Crystal Form
Specific Gravity
Hardness
Magnetic Material
Brown
Blocky, Angular Alpha alumina trigonal system 3.92 2090 Knoop scale, 9.0 Mohs scale 0.0076%
Typical Chemical Analysis(F12-F46):
Al2O3 95.0-95.5%
TiO2 3.0-3.5%
SiO2 ≤ 1%
Fe2O3 ≤ 0.2%
Grain Sizes Available (F):
12, 14, 16, 20, 22, 24, 30, 36, 40, 46, 54, 60, 70, 80, 90, 100, 120, 150, 180, 220, 240
