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1 事故产生及分析 2002年2月,笔者在检查工作时,正赶上一车主与某修配厂有关人员就关于气门头断裂后捣坏气缸体一事在分析和辩论。这台康明斯发动机是在该修配厂大修的。总成组装后进行了4h左右的冷磨和半天热磨,装到车上后又进行了空载运行(这些过程车主一直在现场)。该车运行到一个星期,在一次拉煤途中爬坡到中段时,车主听到发动机有异响,但没有立即停车而是爬到坡顶后才停下。掀起驾驶室(平头柴),车主对发动机前后左右进行了检视,未
An accident and analysis In February 2002, the author in the inspection work, is catching up with a car owners and repair factory personnel on the rupture of the valve head after the broken cylinder in the analysis and debate. This Cummins engine was overhaul at the fitting shop. Assembled after about 4h cold and half hot mill, loaded into the car after a no-load operation (owners of these processes have been on the scene). When the car ran up to a week and climbed to the middle section of a coal road, the owner heard an abnormal sound from the engine but stopped immediately after climbing to the top of the hill without stopping immediately. Set off the cab (flat firewood), the owner of the engine around the view, not