BFA Blue Fired
BFA Blue Fired
Description
After high-temperature calcination at 1300 ℃, the BFA turns blue in color. Impurities present in the abrasive are precipitated or vaporized, making the particle surface rougher and greatly improving the hydrophilicity of the BFA. After calcination, microcracks generated during the crushing process of the BFA and the cooling process of the crystal are bridged, greatly improving the toughness and strength of the BFA and thus enhancing its wear resistance. After high-temperature calcination, weak magnetic fields in the BFA are converted into strong magnetic fields, and after magnetic separation, the BFA becomes purer
Applications
Primary applications: coated abrasives (paper, cloth and belts) and heavy-duty grinding wheels
Physical Properties
Colour
Shape
Crystal Form
Specific Gravity
Hardness
Magnetic Material
Blue
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
