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The alumina grinding ball
The alumina grinding ball has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories, cement factories, enamel factories and glasswork owing to the excellence of high density, high hardness, high wear resistance. During the abrasive/grinding processing, ceramic balls will not break up, it will not pollute the grinded material as well.
Type:According to the content of aluminum:55-65%\65-75%\92%\95%
Advantage
1). High wear-resistance:
The alumina balls' wear-resistance is higher than the common alumina balls'. When it is working, the ball won't pollute the grinding materials, so it can keep the purity and improve the stability of grinded materials especially the ceramic glaze.
2). High density
High hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.
Indicators | Alumina grinding balls | Aluminum grinding balls | Silicon carbide grinding balls | ||
Chemical composition | Al 2 O 3 ( % ) | 95 | ≥92 | 65-75 | 60-70 |
SiO 2 ( % ) | 3 | 3.81 | 30-15 | 20-15 | |
Fe 2 O 3 ( % ) | 0.05 | 0.06 | 0.41 | <0.5 | |
Ti0 2 ( % ) | 0.04 | 0.02 | 1.7 | 1.8 | |
Other ( % ) | 1.9 | 2.53 | 5 | 10 | |
The bulk density ( g/ cm 3 ) | 3.68 | 3.65 | 2.93-3.00 | 2.80-2.90 | |
Water absorption ( % ) | <0.005 | <0.01 | <0.01 | <0.05 | |
Mohs hardness ( Grade ) | 9 | 9 | ≥8 | ≥8 | |
Compressive strength ( Mpa ) | 2100 | >2000 | >1000 | >1000 | |
The wear rate ( % ) | 0.0084 | 0.01 | 0.011 | < 0.08 | |
Forming method | Balanced compressive | Balanced compressive | Extruding into chunks | Knock off production | |
Appearance requirements:
Alumina grinding balls | Aluminum grinding balls | Silicon carbide grinding balls | |
Color | White | White | Gray and black |
Cracking | Not allowed | Not allowed | Not allowed |
Magazine | Not allowed | Not allowed | Not allowed |
Cell | Φ1mm above is not allowed , Φ0.5mm within the allowed 3 / ball | ||
Defects | The maximum allowable size of 0.3mm 3 / ball | ||
Deliver time:within 10-15 days after receive payment.
Packing:Woven Bag with Pallet or Iron barrel
Note:Our company is hot investment in the country, welcomed to inquire and discuss cooperation. Contact Telephone: 0779-2228072 , Ms. Liu .
