一、前言众所周知,机车柴油机的铸铁气缸套水侧及其对面的曲轴箱上会产生明显的腐蚀损伤。这些损伤均是由于气缸壁随活塞运动的振动而引起的气穴(空化现象)促进了腐蚀和侵蚀所造成的。另外,冷却水泵叶片也因流速高而产生同样的穴蚀损伤。下面介绍有关气穴的一般概念和最近的穴蚀损伤事例,以及探讨冷却水防蚀处理的效果。 First, the preamble As we all know, locomotive diesel engine cast iron cylinder water jacket and the opposite side of the crankcase will have significant corrosion damage. These injuries are caused by cavitation (cavitation) caused by the vibration of the cylinder wall with the movement of the piston, which promotes corrosion and erosion. In addition, the cooling water pump blades also have the same cavitation damage due to the high flow rate. The following is a brief description of the general concept of cavitation and recent cases of cavitation damage, as well as the effects of cooling water erosion treatments.