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Address: No. 26, Dongqing Street, High-tech Zone, Zhengzhou ,Henan, China
Contact name:Daniel
HENAN ZG INDUSTRIAL PRODUCTS CO.,LTD |
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Grinding bodies used in ball mills, bead mills, for fine grinding
Grinding bodies of various shapes and compositions are used in ball mills, bead mills, agitators, attritors for fine or ultra-fine grinding, as well as for grinding and polishing.
Related Data
| Main component | 99%Al2O3 | S-SiC | ZrO2 | Si3N4 | ||
| Physical Property | Density | g/cm3 | 3.9 | 3.1 | 6 | 3.2 |
| Water Absorption | % | 0 | 0.1 | 0 | 0.1 | |
| Sinter Temperature | °C | 1700 | 2200 | 1500 | 1800 | |
| Mechanical Property | Rockwell Hardness | HV | 1700 | 2200 | 1300 | 1400 |
| Bend Strength | kgf/mm2 | 3500 | 4000 | 9000 | 7000 | |
| Compression Intensity | Kgf/mm2 | 30000 | 20000 | 20000 | 23000 | |
| Thermal Property | Maximum working temperature | °C | 1500 | 1600 | 1300 | 1400 |
| thermal expansion coefficient 0-1000°C | /°C | 8.0*10-6 | 4.1*10-6(0-500°C) | 9.5*10-6 | 2.0*10-6(0-500°C) | |
| 5.2*10-6(500-1000°C) | 4.0*10-6(500-1000°C) | |||||
| Thermal Shock resistance | T(°C) | 200 | 250 | 300 | 400-500 | |
| Thermal Conductivity | W/m.k(25°C | 31 | 100 | 3 | 25 | |
| 300°C) | 16 | 100 | 3 | 25 | ||
| Electrical Property | Resisting rate of Volume | ◎.cm | ||||
| 20°C | >1012 | 106-108 | >1010 | >1011 | ||
| 100°C | 1012-1013 | – | – | >1011 | ||
| 300°C | >1012 | – | – | >1011 | ||
| Insulation Breakdown Intensity | KV/mm | 18 | semiconductor | 9 | 17.7 | |
| Dielectric Constant (1 MHz) | (E) | 10 | – | 29 | 7 | |
| Dielectric Dissipation | (tg o) | 0.4*10-3 | – | – | – | |
Main applications:
mining industry;
production of technical ceramics (piezo ceramics, insulators, electronic components, etc.);
production of sanitary ceramics;
production of paints, pigments, coatings, glazes, inks;
production of quartz sand;
production of fine calcium carbonate (GCC);
production of cement;
production of fertilizers;
food, cosmetics, pharmaceuticals.
Basic materials:
Main advantages:
excellent strength;
excellent wear resistance;
high density;
close size distribution and smooth surface;
optimum results when processing high-viscosity materials.
Grinding balls of zirconia (partially stabilized with Y2O3 or CeO2)
Beads (grinding microspheres) from zirconium dioxide (partially stabilized with Y2O3)
It is widely used in high-speed vertical and horizontal mills.
Recommended for use with high-speed micro-fine wet grinding.
