The melting point of 95 sandblasted zirconia beads reaches 2400-2550 ℃, and their high temperature resistance makes them suitable for sandblasting cleaning of castings. The metal castings after casting can be sandblasted with zirconia beads to remove surface sand particles and burrs, while withstanding high temperatures without decomposition, to avoid contaminating the castings. In the sandblasting of titanium alloy components in aerospace, zirconia beads can remove high-temperature oxide layers. They have a unique combination of ultra-high melting point, chemical inertness, and thermal stability, and due to their chemical inertness, they do not react with titanium alloys, ensuring that the mechanical properties of the workpiece are not affected. They are ideal sandblasting media under high temperature conditions. They have a unique combination of ultra-high melting point, chemical inertness, and thermal stability, making them the preferred choice for industries with extreme temperature resistance that cannot be negotiated.
1 . Comparison between 95 zirconia and 65 zirconia silicate
|
Item |
65 Zircona Beads |
95 Zirconia Beads |
|
Chemical Index |
ZrO2 ≥65% |
ZrO2 ≥95% |
|
Mohs Hardness |
8 Mohs |
9 Mohs |
|
True Specific Gravity |
≥4.0g/cm3 |
≥6.0 g/cm3 |
|
Bulk Density |
≥2.5g/cm3 |
≥3.7g/cm3 |
|
Wear Rate Per Ton |
0.03kg/h |
0.01kg/h |
|
Particle Size |
Φ0.1-10mm etc. |
Φ0.1-50mm etc. |
|
Usage |
Grinding of Low or Medium |
Grinding of High Viscosity and High Hardnes with zero pollution |
2 . Specifications:
0.1-0.2mm,0.2-0.3mm,0.3-0.4mm
0.4-0.6mm,0.6-0.8mm,0.8-1.0mm
1.6-1.8mm,1.8-2.0mm,2.0-2.2mm
2.2-2.4mm,2.4-2.6mm,2.6-2.8mm
4,5,6,7,8,9,10,12,15.17,20,25,30,40,45,50etc.
3 . Advantage:
Higher density provides better impact force, thereby improving grinding efficiency.
Smooth surface, perfect sphericity, narrow size distribution
High purity ensures minimal contamination of the treated surface
Acid and alkali resistant, rust resistant, compatible with water-based processing.
A lower wear rate can achieve long-term use
4 . Application:
Dielectric, piezoelectric, and magnetic materials
Pigments, inks, dyes, paints, and coatings
Batteries and fluorescent materials
High purity advanced ceramic materials, melting blocks, and glazes
Pharmaceuticals, dentistry, cosmetics, and food
5 . Casting Cleaning Applications: Removing Surface Defects at High Temperatures
Iron and Steel Casting Deburring
Process Parameters:
3–5mm zirconia beads at 0.8–1.2MPa pressure;
Blasting temperature: up to 500℃ (direct from casting mold).
Performance Data:
Removes 99% of sand adhering to gray cast iron (HT300), surface roughness Ra controlled at 25–50μm;
No Fe ion contamination (ICP-MS shows Fe <0.5ppm), ensuring paint adhesion strength ≥50MPa (ASTM D4541).
Aluminum Alloy Casting Finishing
In ADC6 aluminum wheel blasting:
2–3mm beads at 0.6MPa remove thermal oxide layers (Al₂O₃) without introducing Zr ions (<0.1ppm);
Post-blasting surface hardness increases by 15% (from 120HV to 140HV), improving corrosion resistance.
6 . High-Temperature Abrasive Media Comparison
|
Media Type |
Melting Point (℃) |
1000℃ Wear Rate |
Thermal Expansion (10⁻⁶/℃) |
Corrosion with Ti Alloy |
|
95 Zirconia Beads |
2400–2550 |
<0.05%/100h |
6.5 |
None |
|
Alumina Beads |
2050 |
0.5%/100h |
8.0 |
Al³⁺ leaching |
|
Silicon Carbide |
2200 |
0.2%/100h |
4.5 |
C contamination |
|
Steel Shot |
1535 |
1–2%/100h |
11.0 |
Fe-Ti intermetallics |
Qinyuan Fuda, located in Linfen, Shanxi, is a manufacturer specializing in the production of zirconium series products. Whether you are looking for grinding zirconia beads or sandblasting zirconia bead products, you can contact us. We have 95 zirconia, 85 zirconia, 80 cerium zirconia beads, 65 zirconium silicate, and so on.
Tina
whatsup : +86 186365596698
Email : tina@fudanewmaterial.com
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