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A Brief Analysis of the Advantages of Glass Beads for Sandblasting
Published Time:
2021-08-18
Glass beads offer significant advantages over other shot peening media. Compared to iron and stainless steel shot, it is difficult to achieve particle sizes smaller than 0.15mm with iron and stainless steel shot. Therefore, these media are often used for shot peening of steel castings and larger components. However, when used on precision castings and non-ferrous metal components, they can cause deformation, leave marks, and cause excessive stress relief.
Glass beads, however, can be produced with sizes smaller than 0.05mm. Due to their smaller size, the contact area with the component is very small, making them less likely to damage the component, providing more uniform stress relief, and resulting in a better matte finish. Compared to other types of glass abrasives such as silicon carbide and quartz sand, glass beads also have irreplaceable advantages. Because sand media are irregular or angular, regardless of particle size, they will generally cause some damage to the components being sprayed. Under a microscope, some marks will be visible, easily causing surface contamination and corrosion, thus failing to achieve long-term use effects. However, after glass bead shot peening, there are rarely any marks on the surface of the components, achieving a long-lasting effect.
Glass beads, when used on metal and mold surfaces, do not damage the working surface while improving work precision. They are used for cleaning and polishing hardware, plastics, and precision castings, and contain no resin components.
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