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一、安装活塞鞘明火加温 由于活塞鞘座处较厚,其他部分较薄,明火加温后的热膨胀系数很大,容易使活塞变形。一般明火加温温度较高,在自然冷却过程中,里边的金属组织受到破坏,因而降低了活塞的耐磨性和使用寿命。 二、更换润滑油不清洗油道许多机手在更换润滑油时,不清洗油底壳或输油道,就将润滑注入其中。这样做很不科学。因为油底壳及输油道未经清洗,含有许多杂质,其进入零件表面会加剧机件磨损,特别是新的或大修后的机车,
First, the installation of the piston sheath fire heating As the piston sheath thick seat, the other part of the thin, large after the fire expansion coefficient of thermal expansion, easy to piston deformation. Generally open flame heating temperature is higher, in the natural cooling process, the inside of the metal organization is damaged, thus reducing the wear resistance and life of the piston. Second, the replacement of oil does not clean the oil tank Many hand in the replacement of oil, do not clean the oil pan or oil channel, it will be injected into the lubrication. It is unscientific Because the oil pan and the oil channel without cleaning, contains many impurities, the parts into the surface will exacerbate wear and tear parts, especially new or overhauled locomotives,