Due to its high hardness, high wear resistance, corrosion resistance and other excellent properties, wear resistant alumina ceramic linings are widely used in various industrial fields, such as mining, chemical industry, metallurgy, etc. However, in actual use, these liners may still be damaged, affecting their service life and effect. This article will analyze the causes of wear-resistant alumina ceramic lining damage in detail from five aspects: external impact, environmental erosion, normal wear and tear, material brittleness, improper processing and installation.
1. External impact
External impact is one of the main factors leading to the damage of wear-resistant alumina ceramic linings. During operation, the lining may be subjected to impact forces caused by vibration, collision or improper handling of the equipment. Strong impact can directly lead to loosening and peeling of particles on the surface of the lining, or even damage to the entire structure. For example, in mining equipment, the impact of ore and vibration during transportation may cause impact on the lining and cause damage.
2. Environmental erosion
Environmental erosion is another important cause of damage. During the use of wear-resistant alumina ceramic lining, it is inevitable that it will come into contact with the media in the environment, which may include corrosive gases, liquids or solid particles. Long-term exposure to corrosive media will gradually erode the surface of the lining, resulting in peeling, pits and other phenomena. In addition, impurities in the environment may also become a catalyst for wear, accelerating the wear process of the material. At the same time, wind erosion is also an environmental factor that cannot be ignored. Long-term wind action will carry tiny particles to continuously impact and grind the surface of the lining, resulting in increased surface roughness and increased wear.
3. Normal use wear
Normal use wear is an inevitable process for lining damage. Even in the absence of external impact and environmental erosion, the wear-resistant alumina ceramic lining will gradually wear out due to normal operations such as contact and friction during long-term use. This wear is caused by time factors and is a normal phenomenon. However, when the wear is excessive, the performance of the lining will be significantly reduced, and even cannot meet the use requirements. At this time, it needs to be replaced in time.
4. Material brittleness
The alumina ceramic material itself has high brittleness, which is also an important factor leading to lining damage. During processing, installation or use, if the operation is improper or it is impacted by external forces, the liner is prone to edge collapse, fragmentation, etc. Especially when the temperature changes sharply or is subjected to strong thermal shock, the stress concentration inside the material may cause the expansion of microcracks, and eventually lead to the failure of the overall structure.
5. Improper processing and installation
Improper processing and installation are also common causes of wear-resistant alumina ceramic liner damage. During the processing process, if the cutting parameters are set unreasonably, the tool selection is improper, or the processing accuracy is insufficient, it may cause problems such as edge collapse and cracks on the edge of the liner. During the installation process, if the matching clearance between the liner and the substrate is too large, the fixation is not firm, or the installation position is inaccurate, it may affect its use effect, and even fall off or break during use.
In summary, the main causes of wear-resistant alumina ceramic liner damage include external force impact, environmental erosion, normal use wear, material brittleness, and improper processing and installation. In order to extend the service life of the liner and improve its use effect, we should start from these aspects and take effective measures to prevent and control. For example, strengthen equipment maintenance and reduce external impact; optimize the working environment and reduce the impact of corrosive media; regularly check the wear of the liner and replace damaged parts in time; improve the processing and installation process, improve processing accuracy and installation quality, etc. Through the implementation of these measures, the breakage rate of wear-resistant alumina ceramic liner can be significantly reduced, and its use efficiency and economic benefits can be improved.Chemshun ceramics manufacurer are much experienced in abrasion resistant ceramics , welcome to inquiry by office@chemshun.com
Post time: Oct-15-2024