论文部分内容阅读
一、拖拉机缸盖裂纹的原因1.温度过高骤加冷水由于发动机超负荷作业,散布热不良、漏水等原因使发动机温度过高,水箱开锅。或直接向水箱里加凉水,因骤加冷水,温差过大,热胀冷缩,造成缸盖裂纹或炸裂。2.温度过低骤加热水冬天天气寒冷,有的驾驶员不烤车,加开水预热发动机,有人先起动发动机后加冷水。发动机温度高时立即加水,冷热温差变化大缸盖易裂。
First, the cause of the tractor cylinder head cracks 1. Too high temperature to add cold water due to engine overload operation, poor distribution of heat, leakage and other reasons so that the engine temperature is too high, the water boil. Or directly to the tank with cold water, due to sudden addition of cold water, the temperature difference is too large, thermal expansion and contraction, resulting in cylinder head cracks or burst. 2. The temperature is too low Suddenly cold water heating winter, and some drivers do not car, add boiling water to warm up the engine, some people start the engine after adding cold water. When the engine temperature is high, immediately add water, hot and cold temperature changes cylinder head easy to crack.