FIELD: mechanical engineering.
SUBSTANCE: cylinder liner according to the present invention is a cylinder liner mounted in a cylinder block and made of cast iron with flake graphite, there is at least a nitrided case on the inner periphery of the liner, and a cross-hatching section is made on the inner periphery, the roughness curve of the inner periphery has a flat-topped shape, the average roughness Rz of the inner periphery according to the JIS B0601:1982 standard is 4.0 microns or less, and the average value of the proportion of the area of pits formed on the inner periphery, is 8% or less.
EFFECT: expansion of the range of methods for cylinder liner manufacturing.
10 cl, 3 tbl, 25 dwg
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