Zirconia ceramic ball is one kind grinding media with high grinding efficiency which can prevent material from being polluted
Characteristics
1. low wear volume(ppm), preventing material from being polluted.
2. Suitable for high viscosity, wet grinding and dispersion circumstances
3. High grinding efficiency
4. Long-time working life, high Cost-effective
Field of application for zirconia ceramic ball
1. High strength and toughness product: magnetic material, piezoelectric ceramics, dielectric ceramics
2. Pollution Prevention: medicine industry, food industry, cosmetic industry
3. Abrasion and corrosion resistant product: coatings, textile industry, Pigments industry, printing and dyeing industry
4. Ceramics: electronic ceramics, refractory ceramics, structural ceramics
Ball shape：φ0.1-0.4，φ0.4-0.6，φ0.6-0.8，φ0.8-1(zirconia bead)，φ1，φ2，φ3，φ4，φ5，φ7，φ10，φ12，φ15，φ20，φ55mm
Column shape：3×3,5×5,7×7,10×10,12×12mm
Specification:
ball-type:φ0.1-0.4,φ0.4-0.6,φ0.6-0.8,φ0.8-1,φ1,φ2, φ3,φ4,φ5,φ7,φ10,φ12,φ15,φ20,φ55mm
cylinder-type:3×3,5×5,7×7,10×10,12×12mm
| Items | unit | parameters |
| composition | % | 94.8%ZrO2 5.2%Y2O3 |
| filling density | Kg/L | 3.5(φ7mm) |
| specific density | g/cm3 | ≥6.02 |
| hardness(HV) | Gpa | ＞11 |
| elastic modulus | Gpa | 200 |
| thermal conductivity | W/m.K | 3 |
| crushing load | KN | ≥20(φ7mm) |
| fracture toughness | Mpam1/2 | 9 |
| grain size | um | ≤0.5 |
| thermal expansion | 10×10-6/℃(20 to 400) | 9.6 |
Shape Tolerances and Surface Roughness of this kind Zirconia ceramic grinding media
| rating | (Vdws)changes of the ball diameter | (Sph)error-line | (Ra)surface roughness | |
| um(not more than um) | ||||
| G3 | 0.08 | 0.08 | 0.012 | |
| 5 | 0.13 | 0.13 | 0.02 | |
| 10 | 0.25 | 0.25 | 0.025 | |
| 16 | 0.4 | 0.4 | 0.032 | |
| 20 | 0.5 | 0.5 | 0.04 | |
| 28 | 0.7 | 0.7 | 0.05 | |
| 40 | 1 | 1 | 0.08 | |
| 60 | 1.5 | 1.5 | 0.10 | |
| 100 | 2.5 | 2.5 | 0.125 | |
| 200 | 5 | 5 | 0.2 | |
