What are the treatment processes for the inner surface of chemical engine cylinder liner?
Publish Time: 2025-02-27
As one of the core components of the engine, the treatment process of the inner surface of the chemical engine cylinder liner is directly related to the wear resistance, corrosion resistance and overall performance of the engine. With the advancement of science and technology and the development of technology, the treatment process of the inner surface of the cylinder liner is becoming more and more diversified, aiming to improve the service life of the cylinder liner and the operating efficiency of the engine.At present, the main processes for the inner surface treatment of the cylinder liner include spraying, chrome plating, shot peening and boring.The spraying process is to spray high-temperature spraying materials on the inner surface of the cylinder liner to form a layer of high-strength, high-hardness and high-density surface coverage. This method can significantly improve the hardness of the inner surface of the cylinder liner, effectively resist wear and corrosion, while reducing friction loss and extending the service life of the engine. However, the spraying process requires strict control of the high-temperature treatment of the spraying material to avoid excessive thermal stress on the cylinder liner and ensure the uniformity and thickness of the coating.The chrome plating process uses the electrochemical principle to plate a layer of chrome on the inner surface of the cylinder liner. This layer of chromium can enhance the hardness and wear resistance of the cylinder liner, while providing good corrosion resistance. However, the thickness and uniformity of the chrome plating layer have a great impact on the performance of the cylinder liner. A too thick chromium layer may cause chromium wetting, while a too thin chromium layer is difficult to achieve the ideal protection effect.The shot peening process is to impact the inner surface of the cylinder liner by spraying high-speed flowing particles to remove the oxide scale and burrs on the surface, increase the roughness of the cylinder liner surface, and thus improve the friction coefficient and lubrication effect. This process has significant advantages in improving the quality of the inner surface of the cylinder liner, but attention should be paid to the selection and control of shot peening particles to avoid excessive damage to the inner surface of the cylinder liner.The boring process is to process the inner surface of the cylinder liner by machining to remove burrs and unevenness and ensure the flatness and roundness of the inner surface of the cylinder liner. This method can accurately control the roughness of the inner surface of the cylinder liner, but it requires highly specialized technology and equipment support.In summary, there are various treatment processes for the inner surface of chemical engine cylinder liner, each of which has its own unique advantages and applicable scenarios. When selecting a treatment process, it is necessary to make comprehensive considerations based on the specific requirements and use environment of the cylinder liner to ensure the best treatment effect.
