Key technical index of engine cylinder liner
1. Dimensional accuracy: The dimensional accuracy of the inner diameter of the cylinder directly affects the fit clearance between the piston and the cylinder liner. Suitable clearance can ensure the flexible movement of the piston and prevent gas leakage.
In general, the gap error needs to be controlled within a very small range, usually measured in microns.
2. Surface roughness: The surface roughness of the inner wall of the cylinder liner has an important impact on the tightness and service life of the piston ring. Too rough surface will accelerate the wear of the piston ring, and too smooth surface is not conducive to the formation of lubricating oil film.
Therefore, it is necessary to achieve appropriate surface roughness of the inner wall of the cylinder liner through specific processing technology to achieve good lubrication and sealing effect.
3. Hardness: In order to cope with the friction of the piston and the impact of the gas, the cylinder liner needs to have a high hardness.
Through appropriate heat treatment of the material, such as quenching, tempering and other processes, can effectively improve the hardness of the cylinder liner, enhance its wear resistance and fatigue resistance.






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Main Product:
Engine piston,
cylinder liner,
spark plug ,
Ignition coils,
head gasket,
Engine Valve