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气缸套穴蚀是国内外柴油机,特别是高速柴油机存在着的问题。我国生产的普通12V175ZL 型柴油机气缸套的穴蚀也比较严重,影响气缸套的使用寿命。12V175型柴油机气缸套的构造和主要尺寸如图1所示,穴蚀情况见图2。对于形成气缸套穴蚀的原因,到目前为止,有下列三种看法:1.化学或电化学腐蚀是造成气缸套穴蚀的主要原因。2.由于气体的压力、活塞侧压力,以及活塞的摇摆冲击等原因,使气缸套产生高频振动。这种振动在冷却水中引起微气泡,而微
Cavity cavitation is the domestic and international diesel engines, especially high-speed diesel engine problems. China’s ordinary 12V175ZL-type diesel engine cylinder liner corrosion is also more serious, affecting the life of the cylinder liner. 12V175 diesel cylinder liner structure and the main dimensions shown in Figure 1, pitting situation shown in Figure 2. For the formation of cylinder liner cavitation causes, so far, the following three views: 1. Chemical or electrochemical corrosion is the main cause of cylinder liner cavitation. 2. Due to the pressure of the gas, the piston side of the pressure, and the swing piston impact and other reasons, the cylinder sleeve to produce high-frequency vibration. This vibration causes microbubbles in the cooling water, and the micro