Abrasive for Glass Polishing Wheels
1) Al2O3: 95%min
2) ISO 9001:2008
3) Overseas for 5 years
4) Professional manufacture
Brown Fused Alumina for Glass Polishing Wheels
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
5. Technical Data Information:
Using | Specifications | The Main Chemical Components% | Magnetic Contents% | ||||
Al2O3 | Fe2O3 | SiO2 | TiO2 | ||||
Abrasive | F | 4#-80# | ≥95.0 | ≤0.25 | ≤1.5 | ≤2.3 | ≤0.05 |
90#-150# | ≥95.0 | ≤0.03 | |||||
180#-240# | ≥95.0 | ≤0.02 | |||||
P | 8#-80# | ≥95.0 | ≤0.25 | ≤1.2 | ≤2.5 | ≤0.05 | |
100#-150# | ≥94.0 | ≤0.03 | |||||
180#-220# | ≥93.0 | ≤0.3 | ≤1.5 | ≤2.5 | ≤0.03 | ||
W | 90#-150# | ≥92.5 | ≤0.4 | ≤1.8 | ≤3 |
| |
Refractory | Size Sand | 0-1mm 1-3mm 3-5mm 5-8mm 8-12mm | ≥95.0 | ≤0.25 | ≤1.5 | ≤2.3 |
|
25-0mm 10-0mm 50-0mm 30-0mm | ≥95.0 | ≤0.25 | ≤1.5 | ≤2.3 |
| ||
Powder | 180#-0 200#-0 320#-0 | ≥94.5 ≥93.5 | ≤0.3 | ≤1.5 | ≤3 |
| |
