Product Description
In industrial production, the demand for wear-resistant materials has remained high, especially in industries such as steel, mining, ports, chemicals, thermal power, cement, etc., that have extremely high requirements for wear resistance. ZTA ceramics, as an advanced wear-resistant material, are gradually becoming the darling of these industries, providing a new idea and solution for solving equipment wear problems.
ZTA ceramics are zirconium oxide toughened alumina ceramics, which are high-performance ceramics made by compounding two ceramic materials, alumina (Al₂O₃) and zirconium oxide (ZrO₂), through a specific process. In many applications, it mainly appears in the form of ceramic pipes and ceramic linings, providing reliable wear protection for various industrial equipment, especially in the mining industry.
ZTA technical parameters
Items | Specifications |
Al2O3 | ≥75% |
Zirconia | ≥21% |
Density | 4.2 g/cm3 |
Compressive Strength | ≥ 1400 MPa |
Rockwell Hardness | ≥ 90 HRA |
Vickers Hardness | ≥ 1350 HV10 |
Fracture Toughness (KIC) | ≥ 5.5 Mpa.m1/2 |
Bending Strength | ≥ 350 Mpa |
Wear Volume | ≤ 0.009 cm3 |
Tensile Strength (TSB) | ≥ 15 Mpa |
Rubber | Natural |
Natural | ≥450 |
Elongation | 450% |
The mining industry has become the world's largest application market for ZTA ceramic linings
Application Fields | Application Scenarios |
Steel | Coal drop pipes, ore drop pipes, hopper linings, etc. in sintering plants; ore trough linings, ore coarse crushing nozzles, etc. in ironmaking plants; ladle slag line bricks, water-cooled furnace mouth bricks, etc. in steelmaking plants; roller hot air ducts, etc. in hot rolling plants; silo linings, pickling tank linings, etc. in cold rolling plants |
Mines | Chute linings, pipes, elbows, ball mill linings, cyclone linings, etc., in various mines |
Ports | Wear-resistant protection for pipelines and equipment for transporting bulk materials such as coal and ore |
Chemical industry | Chemical pipelines, reactor linings, tower linings, etc., to resist corrosion and wear of chemical media. |
Thermal power | Pipes and equipment linings in coal handling systems, ash removal systems, and desulfurization systems. |
Cement | Wear-resistant linings for preheater pipes, grate coolers, elevator hoppers, chutes, etc., in cement plants |
Industry | Traditional Material Drawbacks | ZTA Ceramic Solutions | Key Parameters (Comparison) |
---|---|---|---|
Steel | Blast furnace coal injection pipes are prone to high-temperature oxidation wear | Resists 1400°C oxidation + steel slag erosion | Wear rate ≤0.15 cm³/10k cycles (ASTM G65) |
Mining | Frequent crusher liner replacement | Fracture toughness 8 MPa·m¹/² for impact resistance | Service life up to 24 months (field data) |
Ports | Material leakage due to chute wear | Surface hardness HV1800 resists particle abrasion | Friction coefficient reduced by 40% (vs metal) |
Chemical | Acid corrosion damages pipe interiors | Withstands pH 1- 14 extreme corrosion | Annual corrosion <0.01mm (ISO 9227) |
FAQ
Q1: How good is the wear resistance of ZTA ceramics? Can you explain it with specific data?
A1: Under the same working conditions, the wear resistance of ZTA ceramics is dozens of times higher than that of ordinary metal materials. For example, in the coal pipe application of a steel plant, the service life of ordinary steel pipes is only about 3 months, while the service life of ZTA ceramic pipes can reach more than 3 years.
Q2: How high a temperature can ZTA ceramics withstand?
A2: The temperature is usually around 100℃~500℃. ZTA ceramics can work stably, but if the temperature exceeds its limit, it may affect its performance and service life, especially the glue-filled filled will be shortened by high temperature.
Q3: The price of ZTA ceramics is relatively high. Is it worth investing?
A3: Although the one-time investment cost of ZTA ceramics is high, in the long run, the maintenance cost reduction brought by its long service life is very significant. Take the mine chute lining as an example. Ordinary rubber linings need to be replaced several times a year, while ZTA ceramic linings can be used for more than 5 years. After comprehensive calculation, its use cost is much lower than traditional materials.
Q4: Can ZTA ceramics be customized in various shapes and sizes?
A4: Customizable. We have advanced production technology and equipment. We can customize ceramic pipes and liners of various shapes and specifications according to the drawings provided by customers or the actual equipment size to meet the personalized needs of different equipment.