Description
Zirconia Ceramic Plunger for Diesel Injector Valves
Innovacera zirconia ceramic plungers were made by yttria-stabilized zirconia which have exceptional corrosion resistance, durability, achieve high-precision tolerances (up to ±0.005mm) and superior surface finishes, these properties help ceramic plungers to improve the diesel fuel injectors using efficiency.
Innovacera’s zirconia plungers are installed in diesel injector valves across engines like the QSM11 and ISM11 models, using the widely recognized model 3411711. For repair and replacement, customers can request the 3411711 model. Additionally, Innovacera manufactures custom plunger solutions, including versions for the N14 and L20 injector models, tailored to meet specific industry needs.
Zirconia Ceramic Plungers Advantages
1. Exceptional strength and durability
2. High resistance to corrosion and cracking
3. Excellent wear resistance
4. Low thermal conductivity
5. High fracture toughness and thermal expansion
6. Superior dimensional accuracy and surface finish
Zirconia Ceramic Material Properties
| Technical Parameter | Technical Item | Unit | Value |
| Physical Properties | Major Content | % | ZrO₂+HfO₂: 94.65%, Y₂O₃: 5.35% |
| Density | g/cm³ | ≥6.0 | |
| Water Absorption | % | 0.00 | |
| Mechanical Properties | Hardness | HV | 1,400.00 |
| Bending Strength | Kgf/mm² | 11.00 | |
| Compressive Strength | Kgf/mm² | 25.00 | |
| Temperature Properties | Thermal Expansion Coefficient (0–1000℃) | 10⁻⁶/K | 9.5 x 10⁻⁶ |
| Thermal Shock Resistance | ℃ | 360.00 | |
| Thermal Conductivity | W/m·K | 3.00 | |
| Volume Resistance Rate (20℃) | Ω·cm | >10¹² |
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