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China Weighting Glass Beads Supplier - High-Quality Factory Produced Beads for Density Adjustment and Filling Applications
Glass Chemical Composition Analysis
| Chemical Component | Typical Content | Description |
|---|---|---|
| SiO2 / Silicon Dioxide | 70% - 73% | Main glass network component |
| Na2O / Sodium Oxide | 12% - 15% | Helps glass melting and processing |
| CaO / Calcium Oxide | 7% - 10% | Improves glass stability |
| MgO / Magnesium Oxide | 2% - 4% | Improves durability |
| Al2O3 / Aluminum Oxide | 0.5% - 2.0% | Improves chemical resistance |
| K2O / Potassium Oxide | 0.5% - 1.5% | Minor alkali component |
| Fe2O3 / Iron Oxide | ≤ 0.5% | Controlled impurity |
Frequently Asked Questions (FAQ)
What is the primary chemical component in this glass formula?
Silicon Dioxide (SiO2) is the primary glass network former, accounting for 70% to 73% of the total formulation.
Why is Sodium Oxide (Na2O) used in glass manufacturing?
Sodium Oxide (12% - 15%) serves as a fluxing agent that lowers the melting temperature of silica, facilitating glass melting and forming processes.
How do Calcium Oxide (CaO) and Magnesium Oxide (MgO) affect performance?
Calcium Oxide (7% - 10%) improves the structural stability of the glass, while Magnesium Oxide (2% - 4%) further enhances mechanical durability and inhibits devitrification.
What role does Aluminum Oxide (Al2O3) play in the glass matrix?
Aluminum Oxide (0.5% - 2.0%) significantly improves chemical resistance, thermal stability, and overall viscosity control.
Why must Iron Oxide (Fe2O3) content be kept under 0.5%?
Iron Oxide is a controlled impurity; maintaining it below 0.5% ensures optimal optical clarity and prevents undesirable greenish or brownish tinting.
What is the purpose of Potassium Oxide (K2O) in the composition?
Potassium Oxide (0.5% - 1.5%) acts as a minor alkali component that complements sodium oxide to refine melting behavior and glass surface properties.
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