湿式汽缸套与冷却水接触的局部表面被腐蚀成麻点或蜂窝状孔洞,称为穴蚀。产生穴蚀的主要原因是:活塞往复运动引起高频振动,使附着在汽缸套外侧的冷却水产生气泡和爆破,形成穴蚀损坏,严重者缸内气体泄入冷却水道,冷却水渗入汽缸,使发动机无法正常工作。穴蚀主要发生在活塞摆动的 Wet cylinder liner and cooling water in contact with the local surface corrosion pitting or honeycomb holes, known as cavitation. Cavitation caused by the main reason is: reciprocating piston caused high-frequency vibration, so that attached to the outer cylinder cooling water bubbles and blasting, the formation of pitting damage, severe gas leak into the cooling water channel, cooling water into the cylinder, Make the engine unable to work normally. Cavitation occurs mainly in the swing piston