The surface treatment process of the chemical engine cylinder liner improves the lubrication performance from multiple dimensions by changing the surface microstructure and optimizing the material properties, providing reliable guarantee for the stable operation of the engine.
The surface treatment process will first finely process the surface of the chemical engine cylinder liner to make its surface roughness meet specific requirements. Through grinding, polishing and other means, the originally relatively rough surface of the chemical engine cylinder liner is polished to be smoother and more delicate. When the piston reciprocates in the chemical engine cylinder liner, the smooth surface can effectively reduce the friction resistance between the piston ring and reduce the wear when the two are in contact. Just like smooth rails make trains run more smoothly, the smooth surface of the chemical engine cylinder liner creates good conditions for the formation and stable existence of the lubricating oil film, so that the lubricating oil can be more evenly distributed on the surface and give full play to the lubrication effect.
Some surface treatment processes will form special texture structures on the surface of the chemical engine cylinder liner. These textures are not set randomly, but are carefully designed to effectively store lubricating oil during the movement of the piston. When the piston and the surface of the chemical engine cylinder liner are squeezed against each other, the lubricating oil stored in the texture groove will be squeezed out, and the lubricating oil consumed by friction will be replenished in time to ensure the continuity and integrity of the lubricating film. This special texture structure is like a miniature "oil depot", which continuously provides lubrication support for the friction surface. Even under high load and high speed conditions, it can ensure good lubrication effect and reduce the risk of wear.
Surface coating technology is also an important means to improve lubrication performance. By coating a layer of special materials with a low friction coefficient on the surface of the chemical engine cylinder liner, such as molybdenum disulfide, graphite coating, etc., the friction resistance of the surface can be significantly reduced. These coating materials themselves have excellent lubrication properties, just like putting a layer of "lubricating coat" on the surface of the chemical engine cylinder liner. When the piston moves in the chemical engine cylinder liner, the coating material is in direct contact with the piston ring, which greatly reduces the friction between the two, making the movement of the piston easier and smoother, while also reducing the energy loss of the engine during operation and improving fuel efficiency.
Some surface treatment processes will chemically modify the surface of the chemical engine cylinder liner to change the physical and chemical properties of the surface. Through chemical treatment, a dense oxide film or other compound layer is formed on the surface of the chemical engine cylinder liner. This film can not only improve the hardness and wear resistance of the surface, but also enhance the surface's ability to absorb lubricants. Lubricants are more likely to adhere to the chemically modified surface, forming a firm oil film, which is not easily lost due to high-speed movement of the piston or high-temperature environment, thereby establishing a stable and reliable lubrication barrier between the chemical engine cylinder liner and the piston ring, effectively extending the service life of the components.
The surface treatment process also considers the synergy with the lubricant. By optimizing the lipophilicity or hydrophobicity of the surface, the chemical engine cylinder liner surface and the lubricant are optimally matched. Appropriate surface properties can promote the uniform spreading and penetration of the lubricant on the surface and enhance the lubricating effect of the lubricant. At the same time, the surface-treated chemical engine cylinder liner can also be better compatible with different types of lubricants. No matter what high-performance lubricant is used, its lubricating performance can be fully exerted to provide all-round protection for the engine.
In actual operation, the chemical engine cylinder liner will face complex and changeable working conditions, such as high temperature, high pressure, high speed and corrosive media. The chemical engine cylinder liner with special surface treatment can effectively cope with these challenges with its optimized lubrication performance. Good lubrication can reduce the heat generated by friction and avoid the degradation of lubricant performance or damage to components due to local overheating. At the same time, the stable lubrication film can also isolate the direct contact between the corrosive medium and the surface of the chemical engine cylinder liner, preventing the occurrence of corrosion and wear, ensuring that the chemical engine cylinder liner can still maintain a good working condition under harsh chemical working conditions and guarantee the stable operation of the engine.
