Ceramic beads can be used for sandblasting for metal finishing reels to eliminate defects such as scratches and abrasions on the surface of metal surface, make the surface uniform, and obtain a matte decorative effect, while improving color adhesion.Sandblasting plays a very important role in the surface treatment of auto parts. It can cut the roots of all the dirt on the surface of auto parts, to achieve the required roughness, and greatly improve the quality of auto parts, coatings and plating materials. The connection force may make the bonding of the bonding parts more stable and better.Sandblasting, anodizing, surface treatment of steering knuckles for automotive parts, nickel plating and sandblasting best choice.
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1.Physical Index |
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True density |
3.85 g/cm3 |
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Bulk density |
2.3g/cm3 |
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Vicker hardness |
700HV |
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2.B series Particle size range (mm): |
Z series Particle size range (mm): |
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B20:0.600-0.850 B30:0.425-0.600 B40:0.250-0.425 B60:0.150-0.300 B80:0.125-0.212 B100: 0.106-0.180 B120:0.063-0.125 B150: 0.053-0.106 B170:0.045-0.090 B205:0.000-0.063 |
Z100: 0.100-0.150 Z150: 0.150-0.210 Z210: 0.210-0.300 Z300: 0.300-0.425 Z425: 0.425-0.600 Z600: 0.600-0.850 Z850: 0.850-1.180 |
3.HOW TO CHOOSE CERAMIC BEADS :
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Device Type |
Working characteristics |
Key points for selecting ceramic beads |
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Horizontal sand mill |
High speed airflow drives medium impact between materials and media
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High speed mixing and high-frequency collision require ceramic beads with small particle size and high roundness (0.1-3mm), such as zirconia beads (roundness>95%), to avoid jamming or equipment wear. |
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Ball mill (vertical/horizontal) |
Low speed rolling, medium ground by gravity |
Large particle size and high-strength ceramic beads (5-20mm) are required, such as alumina beads (compressive strength>2000MPa), to withstand long-term rolling impact. |
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Stirring mill |
The stirring blade drives the medium to shear the material |
Medium particle size and high wear resistance ceramic beads (1-8mm), such as silicon carbide beads, are required to adapt to continuous shear friction scenarios |
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Airflow grinding (auxiliary grinding) |
High speed airflow drives medium impact |
Small particle size and high toughness ceramic beads (0.5-2mm) are required, such as silicon nitride beads (fracture toughness>6MPa · m ¹/²), to avoid breakage under high-speed impact. |
4. Select based on grinding target requirements
The grinding target (such as the final particle size and surface accuracy of the material) determines the particle size and uniformity of ceramic beads:
1. Grinding accuracy (final particle size)
Coarse grinding (target particle size 10-100 μ m): Choose large-sized ceramic beads (5-20mm) to quickly crush materials with greater impact energy, such as alumina beads used for coarse crushing of ores.
Medium sized grinding (target particle size 1-10 μ m): Select medium sized ceramic beads (1-5mm) to balance impact and shear effects, such as zirconia beads for coating grinding.
Fine grinding/nano grinding (target particle size<1 μ m): Select ceramic beads with small particle size and high uniformity (0.1-1mm), and achieve particle refinement through dense small shear forces, such as zirconia microspheres for electronic slurries (particle size deviation<3%).
2. Surface quality requirements
If the surface of the material to be ground needs to be scratch free and have high smoothness (such as precision ceramic parts, optical glass): choose ceramic beads with high roundness and low edges (such as zirconia beads, roundness>98%) to avoid damage to the material surface caused by sharp edges.
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