Zirconia grinding ball


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:φ0.1-0.4φ0.4-0.6φ0.6-0.8φ0.8-1(zirconia bead)φ1φ2φ3φ4φ5φ7φ10φ12φ15φ20φ55mm

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

 

Zirconia ball Zirconia grinding ball

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