特种车辆发动机排气管隔热方法研究  

Study on the Heat Insulating Method Used in Exhaust Pipe of Special Vehicle Engine

作　　者：马向平[1] 陈威[1] 王书义[1] 骆清国[1] 

机构地区：[1]装甲兵工程学院,北京100072

出　　处：《车用发动机》2004年第6期37-40,共4页Vehicle Engine

基　　金：国家自然科学基金资助项目(50275149)军队"十五"预研资助项目(404020202.5)

摘　　要：对热面隔热和冷面隔热的效果进行了研究,通过有限元分析表明,热面隔热比冷面隔热具有更好的效果。应用自蔓延技术,模仿排气管形状制备了金属陶瓷内衬涂层的简单试件,并进行了热震性试验。结果表明,应用自蔓延高温合成金属陶瓷涂层的方法在特种车辆发动机排气管的内表面进行热面隔热是可行的。This article studies the heat insulating effect in hot surface and cold surface. The result from the finite element analysis indicates that the heat insulating effect in hot surface is better than in cold surface. The coat cermet of pipe is made according to the figures of exhaust pipe by using the Self-Propagating High-temperature Synthesis(SHS) technology and the hot concussion examination is also carried through. The research of this article indicates that it is feasible that the SHS technology is used in the heat insulation of the exhaust pipes inner surface of the special vehicle engines.

关 键 词：自蔓延高温合成 排气管 有限元法 热面隔热 

分 类 号：TK420[动力工程及工程热物理—动力机械及工程]