The piston passes the gas pressure through the connecting rod to the
crankshaft to realize the transformation of the heat energy to the mechanical
energy, and the piston is contacted with the high temperature, high pressure and
strong corrosive gas, so that the utility model has the advantages of sufficient
strength and hardness,
Good heat resistance and thermal conductivity, high
fatigue strength and corrosion resistance
In order to reduce the
reciprocating inertia force.
The piston of a large marine low-speed diesel
engine is usually a crosshead type
The heat treatment process by normalizing
and annealing, and iron pearlite are ferrite organization, has good heat
resistance.
Piston alloy quenched and tempered steel has better heat
resistance and corrosion resistance. The skirt with nodular cast iron annealing
treatment, with good wear resistance…