- Other Fabrication Services[6]
- Other Metal Processing Machinery[6]
- Air-Compressors[1]
- Abrasives[6]
- Other Machinery[6]
- Metal Coating Machinery[5]
- Other Printing Materials[2]
- Rubber Hoses[3]
- Pipe Fittings[4]
- Shaft Couplings[6]
- Cleaning Equipment Parts[4]
- Other Mechanical Parts[5]
- Other Machine Tools Accessories[1]
- Safety Helmet[3]
- Safety Clothing[4]
- Metal Processing Machinery Parts[1]
- Safety Gloves[4]
- Welding Helmets[1]
- Contact Person : Ms. peng jieqiong
- Company Name : Hangzhou Tongbao Machinery Factory
- Tel : 86-571-82393005 82735528
- Fax : 86-571-82755375
- Address : Zhejiang,Hangzhou,Girl bridge25,(HuaMuCheng)Xintang street,Xiaoshan District
- Country/Region : China
- Zip : 311251
glass bead
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Glass Bead Glass beads abrasive with their hardness and spherical form can remove impurities and metal oxides without damaging the treated surface. Glass does not react chemically with other material so that the micro-beads do not create any corrosion on the treated surfaces with no deposits of foreign substances. Chemical Name & Synonyms Soda-lime Silicate-Glass Chemical Family Silicate glass without free silica Formula SiO2 71-73% Na2O 13-15% MGO 3-5% CaO 8-10% Al2O3 0.5-2% K2O 0.2-0.6% Physical Properties Boiling Point N/A Vapour Pressure N/A Percent Volatile by Volume Nil Vapour Density N/A Evaporation Rate N/A Odour Nil Refractive Index 1.52 Oil Absorption (ASTM) 17 Solubility in Water Not Soluble Mohs 6 Absolute Specific Gravity(H2O=1)2.46 Knoop Load 100: 515kg/mm2 Absolute Specific Gravity 1.6kg/dm3 Hardness DPH Load 50kg: 540kg/mm2 Specific Heat Average 0.18kcal/mhoC Dielectric Strength 4, 500kv/cm Dielectric Constant 7.2(1MC at 20oC) Expansion Coefficient 8.5*10-6 Reactivity Data Stability Instability Incompatibility Hazardous Decomposition Products Polymerisation Hazard Nothing to avoid Nothing to avoid Avoid Hydrofluoric Acid None Nothing to avoid Special Protection Information Ventilation Respiratory Protection Eye Protection Hands Local Exhaust Recommended Dusk Mask Recommended Goggles Recommended Gloves Recommended Packaging Polythene bags containing sachet desiccant as necessary Transportation No special required Storage Store in a dry environment under cover Avoid extreme temperature changes Spillage or Leakage Procedures Spillage may result in slippery conditions. Beads should be cleared up immediately without creating dust Waste Disposal Since glass beads are inert they may be disposed of in a commercial land-fill site
| Microns | Mesh | Inches | Sphere Count |
| 590-840 | 20-36 | .0234-.0331 | 65% |
| 420-590 | 30-40 | .0165-.0234 | 70% |
| 250-420 | 40-60 | .0098-.0165 | 70% |
| 177-297 | 50-80 | .0070-.0117 | 80% |
| 149-250 | 60-100 | .0059-.0098 | 80% |
| 105-210 | 70-140 | .0041-.0083 | 80% |
| 74-149 | 100-200 | .0029-.0059 | 90% |
| 53-105 | 140-270 | .0021-.0041 | 90% |
| 44-88 | 170-325 | .0017-.0035 | 95% |
| 30-62 | 270-500 | .0012-.0024 | 95% |
glass bead
