Advantages:
1.Extremely long service life: The ZTA ceramic liner has extremely high hardness and outperforms ordinary metal cylinder liners in terms of wear resistance, significantly reducing the frequency of replacements.
2.High impact resistance: The unique composite structure combines the toughness of metal with the hardness of ceramic, effectively resisting high pressure reciprocating impacts.
3.Precise sealing: The inner hole is precisely machined to micrometer accuracy, with a high surface finish, which can effectively protect the piston sealing components, reduce leakage, and improve pump efficiency.
4.Corrosion and high temperature resistance: It can withstand the erosion of sand containing drilling fluids and the temperature fluctuations caused by frequent start ups and stops.
Technical Specifications:
1.Inner lining material: ZTA Ceramic ( Zirconia Toughened Alumina )
2.Shell material: 304 stainless steel / high-strength steel
3.Processing accuracy: micrometer level precision
4.Applicable working conditions: High pressure, large flow rate, high sand content mud environment
Application fields:
1.oil and gas drilling
2.shale gas fracturing
3.offshore platforms
ZTA Material Properties:
| Properties | Unit | Value |
|---|---|---|
| (Zr+Hf)O₂ | wt% | 19.03 |
| Al₂O₃ | wt% | 79.87 |
| Y₂O₃ | wt% | 1.06 |
| Density | g/cm³ | 4.24 |
| Hardness | HV | 1475 |
| Elastic Modulus | GPa | 250 |
| Flexural Strength | MPa | 400 |
| Fracture Toughness | MPa·m¹/² | 6 |
| Coefficient of Thermal Expansion | 10⁻⁶/℃ (20-400°C) | 9.0 |
| Grain Size | μm | <5 |
| Impact Resistance Temperature | ℃ | 450 |
Frequently Asked Questions
What is a ZTA ceramic mud pump liner? How does it outperform traditional metal liners?
A ZTA (Zirconia Toughened Alumina) ceramic mud pump liner is a high-performance component combining a high-strength metal outer shell with a wear-resistant ZTA ceramic inner sleeve. Compared to traditional dual-metal liners, its hardness reaches up to 1475 HV, offering significantly superior wear and corrosion resistance. This composite design effectively withstands abrasive, sand-heavy drilling muds, drastically reducing replacement frequency and lowering long-term maintenance costs.
Why is ZTA ceramic ideal for shale gas fracturing? What are its key performance benefits?
ZTA ceramic is highly suitable for extreme drilling and fracturing environments due to its exceptional fracture toughness (6 MPa·m¹/²) and high-temperature resistance (up to 450°C). In high-pressure, large-flow environments, the micrometer-level precision of its inner hole maintains a high surface finish. This design effectively protects the piston seals from abrasive wear, minimizes fluid leakage, and optimizes the overall operating efficiency of the pump.
