Black Engineering Silicon Nitride Balls For Ball Mill 0.5mm-50mm
Product Description
Black Diamonds of Engineering: Silicon Nitride Balls for Extreme Conditions
Understanding Silicon Nitride Balls
Key Properties of Silicon Nitride Balls
Applications of Silicon Nitride Balls
Aerospace and Defense
Automotive Industry
Oil and Gas Exploration
Industrial Machinery
Manufacturing Process of Silicon Nitride Balls
Advantages Over Traditional Materials
| Property | Silicon Nitride (Si3N4) | Steel (440C) | Zirconia (ZrO2) | Alumina (Al2O3) |
|---|---|---|---|---|
| Density (g/cm³) | 3.2 | 7.8 | 6.0 | 3.9 |
| Hardness (HV) | 1,400–1,600 | 700–900 | 1,200–1,300 | 1,500–1,800 |
| Fracture Toughness (MPa·m½) | 6–7 | 15–20 | 7–10 | 3–4 |
| Compressive Strength (GPa) | 2.5–3.5 | 2.0–2.5 | 2.0–2.3 | 2.0–3.0 |
●Description:
Silicon Nitride Ceramic Ball is the most ideal bearing ball for bearing applications, due to the excellent properties of silicon nitride ceramics, it has many irreplaceable advantages comparing to traditional steel materials, such as: high mechanical strength, low wear loss, good self-lubrication, low density, high corrosion resistance, good electrical insulation etc.
Therefore, Silicon Nitride Balls are mostly used for some harsh working conditions: high speed/super speed bearings, high precision bearings, bearings in vacuum, high/low temperature bearings.
Moreover, Silicon Nitride Ceramic Balls can also used as valve ball or measurement balls in chemical pumps/high temperature pumps/metdering pumps.
●Physical Properties:
|
Chemical Composition: |
Si3N4≥95% |
|
Bulk Density: |
3.2±0.05g/cm3 |
|
Elastic Modulus: |
350GPa |
|
Hardness Vickers: |
1870HV |
|
Bending Strength: |
780MPa |
|
Fracture Toughness: |
7.2MPa·m1/2 |
|
Thermal Expansion Coefficient: |
3.2 10-6/K |
|
Thermal Conductivity: |
25W/(m·K) |
● Ball Sizes/Grade :
|
Size (mm) |
Φ0.8-180 |
|||
|
Grade |
Vdws |
SPH |
Vdwl |
Ra |
|
G3 |
0.05-0.08 |
≤0.08 |
<0.13 |
0.01 |
|
G5 |
0.08-0.13 |
≤0.13 |
<0.25 |
0.014 |
|
G10 |
0.15-0.25 |
≤0.25 |
<0.5 |
0.02 |
|
G16 |
0.2-0.4 |
≤0.4 |
<0.8 |
<0.025 |
|
G20 |
0.3-0.5 |
≤0.5 |
<1 |
<0.032 |
|
G100 |
0.4-0.7 |
0.4-0.7 |
<1.4 |
<0.0105 |
Exhibition & Partner
Case
Ship to South Korea
Ship to Spain
FAQ
How do I store zirconia grinding beads?
-
Store them in a dry, clean environment to prevent contamination or moisture absorption.
What is the cost of zirconia grinding beads?
-
They are more expensive than other grinding media due to their superior properties, but their durability and efficiency often justify the cost.
Can zirconia beads cause contamination?
-
They are highly wear-resistant, but prolonged use may cause minimal wear. Regular inspection is recommended to avoid contamination.
What industries use zirconia grinding beads?
-
They are used in pharmaceuticals, paints, coatings, ceramics, electronics, and nanotechnology industries.
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