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国产207E柴油机的活塞在使用中因裂纹而报废的情况甚为严重。该柴油机的活塞的结构、材料以及使用中出现的损坏情况,与苏联ТЭэ内燃机车的2Д100柴油机的14B活塞极为相似。为便于解决207E柴油机活塞的裂纹问题,了解苏联2Д1100柴油机14B活塞的损坏情况、损坏原因及其解决办法是有益的。苏联于1950年制成2Д100柴油机的单缸机,1953年制成10缸2Д100柴油机。1957年以前,其活塞用普通珠光体灰铸铁铸造,平均使用寿命仪5-6万公里。从1957年起,对柴油机结构及活塞进行了一
Domestic 207E diesel piston in use due to crack scrap and the situation is very serious. The diesel piston structure, materials and damage occurred during use, and the Soviet ТЭэ diesel 2Д100 diesel 14B piston very similar. In order to solve the problem of 207E diesel engine piston crack, it is helpful to understand the damage of 14B piston of Soviet 2Д1100 diesel engine, the cause of the damage and its solution. The Soviet Union in 1950 made 2Д100 single-cylinder engine, 1953 made 10 cylinder 2Д100 diesel engine. Before 1957, the piston was molded from ordinary pearlitic gray cast iron with an average service life of 50,000 to 60,000 km. Since 1957, the structure of the diesel engine and the piston has been carried out one