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ND_2型内燃机车是我国从罗马尼亚进口的机车。我所承制一部分该机车的柴油机气缸头,作为配件。加工好的气缸头,必须对燃烧室、油孔和水腔进行水压试验,以确定其是否合格。下面简述各部试验的试验装置。 1.燃烧室的水压试验装置燃烧室直接与燃气接触,周期性地受到高温、高压和强烈侵蚀的作用。在柴油机额定工况时,最大燃烧压力为100公斤/厘米~2。所以,气缸头的燃烧室必须承受压力为120公斤/厘米~2、保压时间为10分钟的水压试验。为了形成高压腔,对燃烧室的外层要进
ND2 diesel locomotive is a locomotive imported from Romania. Part of the locomotive diesel engine cylinder head, as an accessory. Processed cylinder head, the combustion chamber, oil hole and water chamber pressure test to determine its eligibility. The following briefly describes the test apparatus of each department. 1. Combustion chamber hydrostatic test device The combustion chamber is in direct contact with the gas and is subject to periodic high temperature, high pressure and intense erosion. Diesel engine rated conditions, the maximum combustion pressure of 100 kg / cm ~ 2. Therefore, the cylinder head combustion chamber must withstand the pressure of 120 kg / cm ~ 2, holding time is 10 minutes of hydrostatic test. In order to form a high pressure chamber, the outer layer of the combustion chamber is advanced