1.With the advantages of smooth surface, even size, high hardness, wearable and stable. 2.widely used as disperser, grinding me

1)  Product Function With the advantages of smooth surface, even size, high hardness, wearable and stable, widely used as disperser, grinding media and filler materials in day, paint, ink and chemical industry. 2)  Technical referencesA: Appearance: Clean and transparent, no visible bubbles and impurity.B: Specific gravity: 2.53 g/cm3C: Hardness:635kg/mm2( grade PT021), 695kg/mm2(grade ZQ021)D: Compressive strength:2150kg/cm2

E: Coefficient of expansion:86×10°-7

F:  Bulk weight:1.5g/cm33)Size:2.85-3.3mm

4)Chemical compisition

 

  b.grade ZQ021

     SiO2     73.54   PbO  0.07      Al2O3    4.30    ZrO  0     Fe2O3    0.10    ZnO  0     CaO      7.94    B2O3 1.11     MgO     0.21      KO       0.75     NaO     11.42

     PH:7.2

Glass Bead for grinding