What are the differences between iron engines and aluminum engines?

[SerenityFitz]

The differences between iron engines and aluminum engines are as follows: 1. Cast iron engine: The advantages are that it has lower manufacturing technical requirements and mature processes. Cast iron engines can withstand high-temperature and high-pressure working environments during actual operation. The disadvantage is that the engine is too heavy and its heat dissipation is not as good as that of aluminum alloy. 2. Aluminum alloy engine: The advantages are that it is lightweight, effectively reducing the engine's self-weight, and has good heat dissipation. Additionally, the manufacturing process requirements are slightly higher, and the manufacturing cost is more expensive than that of cast iron engines. The disadvantage is that the engine is prone to deformation when heated during operation, causing the matching degree between the cylinder inner wall and the piston to decrease over long-term operation, leading to increased clearance and significant power leakage. Furthermore, aluminum alloy engines cannot excessively exploit the engine's power. However, with technological improvements, the high-temperature resistance of aluminum alloy engines is now comparable to that of cast iron engines.