Phosphating cylinder liner factory tells you the working conditions of the cylinder liner

Phosphating cylinder liner factory will introduce to you: the inner surface of the cylinder liner is directly affected by high-temperature and high-pressure gas, and is in direct contact with the piston ring, and the inner surface is subject to strong high-speed sliding friction. The surface is in contact with cooling water, and severe thermal stress is generated under a large temperature difference, which is corroded by cooling water. The side thrust of the piston to the cylinder liner not only intensifies the friction on its inner surface, but also makes it bend. The piston also hits the cylinder liner when the side thrust changes direction. In addition, it is affected by a large installation preload.

The gas pressure causes the cylinder wall to produce tangential tensile stress and radial compressive stress, and the inner surface is the largest, and this stress is high-frequency pulsating stress.
Phosphating cylinder liner factory tells you: due to the great thermal stress generated by the temperature difference between the inside and outside of the cylinder wall, compressive stress is generated on the inner surface at normal temperature, while tensile stress exists on the cooling surface. However, under extremely high temperature, the metal on the inner surface creeps and deforms plastically, and after cooling, a residual tensile stress is formed on the inner surface. This low-frequency stress caused by the change of starting and stopping will make the material fatigue.