With the development of science and technology and the progress of materials, no matter what materials are conveyed, wear is inevitable. However, the leakage from the worn parts not only affects the normal operation of the device, but also pollutes the environment and destroys the airtightness of the entire system. Therefore, it is necessary to understand and master the causes of wear, reasonably select parameters and design structures, and regularly check and maintain the parts that are prone to wear, so that the performance of the device can be fully utilized and the service life can be extended.
First of all, the difference between wear-resistant ceramic pipes and ordinary pipes is that the former is lined with wear-resistant ceramics as a wear-resistant layer, and the latter is ordinary steel pipes (or other materials).
Secondly, the material difference between wear-resistant ceramics and ordinary steel pipes:
The difference in the material itself, alumina wear-resistant ceramics has become the most widely used wear-resistant material due to its high hardness, high wear resistance, impact resistance, oxidation resistance, corrosion resistance, and high and low temperature resistance.
Finally, the advantages of wear-resistant ceramic pipes (comparison of the two materials described in this article under the same caliber and wall thickness and the same working conditions):
1. Outstanding advantages in wear resistance
The wear-resistant ceramic pipe has a Mohs hardness of 9.0, which is equivalent to more than HRC90, because the lining layer is corundum ceramic (a-AL2O3). The service life of wear-resistant ceramic pipes is 10 times that of ordinary pipes; as determined by the Powder Metallurgy Institute of Central South University, the wear resistance of wear-resistant ceramics is equivalent to 266 times that of manganese steel and 171.5 times that of high-chromium cast iron. Compared with ordinary pipes, Better wear resistance. Wear-resistant ceramics have high hardness. According to the measurement of Shanghai Institute of Ceramics, Chinese Academy of Sciences, the density of corundum ceramics produced by Jingcheng Special Ceramics is only half that of steel.
2. The inner wall is smooth and non-caking
The pipes lined with wear-resistant ceramics, because the inner surface is smooth, the more they are worn, the smoother they are, the running resistance is small, there is no caking, and the pipes are not blocked.
3. Strong corrosion resistance
The wear-resistant ceramic pipe is neutral because the lining ceramic layer is (AL2O3). Therefore, it has acid and alkali resistance and seawater corrosion resistance, and also has anti-scaling and other characteristics.
4. Good thermal stability
The wear-resistant ceramic pipe is a single stable crystal structure due to the corundum ceramic (AL2O3). Therefore, the composite pipe can operate normally for a long time in the temperature range of -50--500°C. The material has good thermal stability.
5. Affordable price
Wear-resistant ceramic pipes are light in weight, and their density is only half that of steel. Wear-resistant ceramic pipes are half lighter than ordinary pipes, and the price is reasonable.
6. Convenient construction
Wear-resistant ceramic pipes have good welding performance due to their light weight. Therefore, welding, flange and other methods can be used, and the construction and installation are convenient.
7. High cost performance
Reduce the waste of energy, reduce the frequency of replacement, increase the production capacity of the enterprise, reduce the "run, leak, leak" of the pipeline, and improve environmental protection and safety.
