Glass beads
Advantage
■ clean and smooth, not hurt to the mechanical precision of work piece.
■ high mechanical intensity, hardness, flexibility
■ it can be reused several times, the same effect and is not easily broken.
■ uniform size, after blasting sand around the device to maintain a uniform brightness effect, not easy to leave a watermark.
■ high purity and good quality meet the international standard.
■ stable chemistry property, not pollute the metal processed.
Technical specification
Chemical Analysis |
Physical Properties |
||
SiO2 |
≥65.0% |
Bulk Density |
1.5g/cm3 |
Na2O |
≤14.0% |
Real Density |
2.5g/cm3 |
CaO |
≤8.0% |
Mohs Hardness |
6-7 |
MgO |
≥2.5% |
HRC hardness |
16 |
AL2O3 |
0.5-2.0% |
Roundness |
≥92.5% |
Fe2O3 |
≥0.15% |
Bubble |
≤10% |
Other |
2.0% |
|
Grades/Sizes of glass bead for sand blasting media
Type |
Mesh |
Diameter(um) |
30# |
20-40 |
850-425 |
40# |
30-40 |
600-425 |
60# |
40-60 |
425-250 |
80# |
60-100 |
250-150 |
100# |
70-140 |
210-105 |
120# |
100-140 |
150-100 |
150# |
100-200 |
150-70 |
180# |
140-200 |
105-70 |
220# |
140-270 |
105-50 |
280# |
200-325 |
70-45 |
320# |
<325 |
<44 |
Applications
1. used for semi-luster surface treatment of stainless steel products.
2. used for cleaning of mould such as forging dies, rubber, plastic, metal casting, extrusion & stamping dies etc.
3. to clear tensile stress of various parts, increase the fatigue life and corrosive power.
4. used for cleaning and removing the flash, burr of integrate circuit and semiconductor device.
5. used for shot peening of medical equipment, textile machinery and all kinds of hardware products etc.
6. used for cleaning and removing burr of all kinds of metal tube, non-ferrous alloy precision casting etc.