Blasting glass beads 300-212micron
The bead blasting process is quite similar to those of other abrasive blasting techniques. However, it involves the projection of sphere- or bead-shaped media against a substrate. Bead blasting is carried out with jagged media to leave a coarser bead blast surface finish. The impact of the glass beads on the surface of the component leaves a more uniform finish on the material.
Material | hardened spherical soda lime glass |
Color | Transparent |
Bulk Density g/cm3 | 1.5 |
Specific Gravity g/cm3 | 2.5 |
Mohs Hardness | 6-7 |
Rockwell Hardness | 46HRC |
Roundness | 80.0% |
SiO2 | 65.0%min | Al2O3 | 0.5-2.0% |
Na2O | 14%max | K2O | 0-0.5% |
CaO | 8%max | FE2O3 | 0-0.15% |
MgO | 2.5%max | OTHERS | 0-2% |
BLASTING GLASS BEADS TYPE | SIZE(μm) |
20-30 | 850-600 |
20-40 | 850-425 |
40-60 | 425-250 |
50-70 | 300-200 |
60-100 | 250-150 |
80-140 | 180-100 |
100-140 | 150-100 |
100-200 | 150-70 |
140-200 | 100-70 |
140-270 | 100-50 |
200-325 | 70-45 |
0-325 | 0-44 |
Glass beads application–Glass beads blasting media
1. Road marking glass beads
Can be divided into dropping on type and mixing type;
Using for roading and to raise the safety of night driving by it’s reflective performance.
Dropping on glass beads can be directly dropping on the road marks;
Mixing glass beads need to use together ;
2.Sandblasting glass beads blasting media
Mainly using for the surface sandblasting and shot blasting of metals,glass,rubber and plastics,acrylic,and can avoid the workpieces be damaged.
3. Filling/Grinding glass beads
Mainly using as filling media of weighted-blanket,plush toys,eyeshade,medical package, uniform filled and good textures
Meanwhile can be used as grinding media for paint,oil,coating,pigment,etc.
4. Precise glass beads
High precision and roundness,can be used as media for chemical ink,wine bottle cap,water pum valve,cosmetics valve,machinery bearings.
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