Introduction
The 92% alumina ceramic liner is a high-hardness, wear-resistant ceramic material made from powder, with an alumina (Al₂O₃) content of ≥92% as the primary raw material. It is supplemented with a suitable amount of sintering aids and manufactured through processes such as powder pressing, high-temperature sintering, and precision grinding.
This product combines the advantages of high hardness, low wear rate, and excellent corrosion resistance. It is widely used as a wear-resistant protective liner on the inner walls of equipment in industries such as cement, metallurgy, mining, and thermal power.
Physical And Chemical Specifications
| Al₂O₃(%) | 92±0.5 |
| ZrO₂(%) | |
| Flexural Strength (MPa) | ＞220 |
| Fracture Toughness | ＞3.6 |
| Rockwell Hardness (HRA) | ＞82 |
| Wear Volume (cm³) | ＜0.5 |
| Density (g/cm³) | ＞3.6 |
Main Product Specifications
10*10*3/4/5/7/10mm
150*100*6/8/10/12/25mm
17.5*17.5*3/4/5/7/10mm
Advantage
1.Excellent Wear Resistance
Its hardness is far higher than that of metal materials such as steel. Under the same operating conditions, its service life is 10–20 times that of ordinary steel plates, which can significantly reduce equipment maintenance frequency and production downtime.
2.Good Chemical Stability
It is resistant to corrosion by weak acids, weak alkalis and most inorganic salts, and is suitable for working environments with corrosive media such as cement slurry and mineral powder.
3.Low Density & Lightweight
Compared with metal wear-resistant liners, it has a lower density, will not substantially increase equipment load, and is easy to install and replace.
4.Outstanding Cost-Effectiveness
Its production cost is lower than that of high-purity alumina liners. It can meet the wear-resistant requirements of most medium-load working conditions and achieve a balance between performance and cost.
Application
Cement Industry: Lining for cement mills, raw meal mills, hoppers, and chutes, resistant to the impact and abrasion caused by cement clinker and raw meal particles.
Mining Industry: Lining for ore-conveying pipelines, vibrating screens, and ore storage bins, reducing equipment wear caused during ore transportation.
Thermal Power Industry: Wear-resistant protection for coal-conveying pipelines, coal mill outlets, and ash discharge systems.
Metallurgical Industry: Lining for slag-conveying equipment and powder storage silos.
Installation Method
It is typically installed by bonding with special high-temperature-resistant adhesives or secured with bolts and pressure plates for heavy-load, impact-prone working conditions. This ensures a tight fit with the equipment substrate and prevents it from falling off during operation.
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