When the engine is working, the cylinder liner needs to withstand high temperature, high pressure, high-speed friction, and chemical erosion of the combustion chamber gas. This cylinder liner is made of high-quality high-strength alloy cast iron material, which has excellent wear resistance and corrosion resistance. Various alloying elements such as chromium, molybdenum, nickel, etc. are added to alloy cast iron, which can improve the hardness, strength, and toughness of the material, enabling it to maintain stable mechanical properties at high temperatures. During the long-term friction process with the piston and piston ring, the surface of the cylinder liner is less prone to wear and tear, effectively extending the service life of the cylinder liner. At the same time, alloy cast iron materials have good corrosion resistance to additives, moisture in the coolant, and harmful substances in the gas, which can prevent cylinder liner corrosion and ensure reliable operation of the engine in complex working environments.
During the working process, cylinder liners need to quickly transfer a large amount of heat absorbed by the piston to the coolant in order to achieve effective cooling of the piston and engine. The cylinder liner is made of materials with high thermal conductivity, and through optimized structural design, the contact area with the coolant is increased, thereby improving the thermal conductivity efficiency. When the engine is running at high load, it can timely dissipate the heat of the piston, prevent the piston from being damaged due to overheating, maintain the normal operating temperature of the engine, and ensure the stability and reliability of the engine. For example, when the vehicle climbs slopes or drives at high speeds for a long time, the cylinder liner can quickly transfer heat to the coolant, avoiding engine overheating and ensuring stable power output.
The main body of the cylinder liner is made of high-quality high-strength alloy cast iron as the base material. This alloy cast iron has excellent comprehensive performance, not only possessing high strength and good toughness, which can effectively resist mechanical stress and thermal stress impact during engine operation, but also excellent wear resistance and corrosion resistance. During long-term high load operation of the engine, the cylinder liner frequently contacts and rubs against components such as the piston and piston rings. High strength alloy cast iron materials can effectively resist wear, ensure the long-term stability of the cylinder liner's structural dimensions, guarantee the accuracy and reliability of engine power transmission, greatly extend the service life of the cylinder liner, and reduce the maintenance and replacement costs of the engine.
