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东风型2000马力内燃机车是目前我国铁路运输事业的主要牵引动力之一,它采用10L207E柴油机,二冲程,最高转速850转/分,单缸200马力,这种柴油机的气缸套形状复杂,外形细长,(内径×长度为φ207×1090毫米),进排气口都在气缸套上。缸套材料沿用国外系列铬钼铜合金铸铁,这种材料的气缸套不耐磨、寿命短,加之原材料供应困难,使气缸套在一段较长的时间内供不应求,妨碍运输能力的发挥。为了提高气缸套的耐磨性,延长缸套的使
Dongfeng 2000 horsepower diesel locomotive is currently one of the main traction power of China’s railway transportation. It uses 10L207E diesel engine, two-stroke, the maximum speed of 850 rev / min, single-cylinder 200 horsepower, the cylinder liner shape of this diesel engine is complex, Long, (diameter × length of φ207 × 1090 mm), into the exhaust port are in the cylinder sleeve. Cylinder liner material used in foreign series of chromium molybdenum copper alloy cast iron, this material is not wear-resistant cylinder liner, short life expectancy, combined with the raw material supply difficulties, the cylinder liner in a short period of time in short supply, impeding the transport capacity to play. In order to improve the wear resistance of cylinder liner, extend the use of cylinder liner