用高温结构陶瓷材料取代高温合金制造的部件,是柴油机领域中最近出现的技术革命。为了发挥直喷式油膜雾化燃烧系统的特点,降低燃气到活塞环的热流量,减少热损失,提高燃烧室的温度。将活塞燃烧室顶部喷涂一层导热率小、隔热耐热性能好,高强度的氧化锆涂层,这是改善铝活塞工作寿 Replacement of parts made of high temperature alloys with high-temperature structural ceramic materials is a recent technological revolution in the diesel engine field. In order to exert the characteristics of the direct injection oil film atomizing combustion system, reduce the heat flux of the gas to the piston ring, reduce the heat loss and raise the temperature of the combustion chamber. The top of the piston combustion chamber sprayed with a layer of small thermal conductivity, thermal insulation performance, high strength zirconia coating, which is to improve aluminum piston work life