The cylinder head castings of marine diesel engines are normally produced by cast iron or cast steel, in order to withstand more complex environments such as high temperature, high pressure, and strong corrosion.
According to the structural characteristics and working environment of marine diesel engine cylinder head castings, the appropriate material should have the following requirements:
1. High tensile strength
2. Good heat resistance
3. Strong corrosion resistance
4. Good rigidity
Ductile cast iron has better tensile strength and toughness than gray cast iron and cast iron alloy, so ductile cast iron should be given priority in the material selection of marine diesel engine cylinder head castings.
The tensile strength and rigidity of cast steel are better than cast iron, but the price is also significantly higher than cast iron.
Therefore, using ductile iron material to produce cylinder heads for marine diesel engines is an economical and practical choice.
Ductile Iron Cylinder Head for Marine Diesel Engine |
