气缸盖是大功率柴油机的主要零件之一,铸件结构复杂,工作条件十分恶劣,多年来一直是柴油机生产的关键之一。气缸盖在使用中最经常发生的损坏形式是由于冷热疲劳造成的阀座间鼻梁区的开裂。所以,一般选用铬钼铜合金铸铁来制造。图1是16V240柴油机气缸 Cylinder head is one of the main components of high-power diesel engine. The structure of the castings is complex and the working conditions are very poor. For many years, it has been one of the keys to diesel engine production. The most frequently occurring form of damage to cylinder heads during use is cracking of the nose bridge area between valve seats due to thermal and thermal fatigue. Therefore, the general choice of chromium molybdenum copper alloy cast iron to manufacture. Figure 1 is a 16V240 diesel engine cylinder