导弹发射装置滑轨表面MoS_2干膜防护高温高速两相燃气流应用研究  

Protection of Ablative Adhesion and Erosion of Slide Track of Missile Launcher by High-Temperature Two-Phase Exhaust Using MoS_2-Based Bonded Solid Lubricant Film

作　　者：肖军[1] 周惠娣[2] 李铁虎[1] 张秋禹[1] 陈建敏[2] 

机构地区：[1]西北工业大学材料科学与工程学院,陕西西安710072 [2]中国科学院兰州化学物理研究所固体润滑国家重点实验室,甘肃兰州730000

出　　处：《摩擦学学报》2003年第5期435-440,共6页Tribology

基　　金：国家杰出青年基金资助项目(59925513).

摘　　要：选用多种MoS2干膜润滑材料,对滑轨式武器发射系统的高能有烟发动机两相燃气流高温烧蚀、熔融残渣的高速热冲蚀以及粘渣-烧蚀耦合破坏作用进行有效的润滑和防护试验,分析了烧粘现象和残渣组成,采用发动机试车台模拟试验及国军标环境条件试验评估了多种MoS2干膜润滑材料的防护特性.结果表明:国产MoS2干膜防护涂层兼有一定的润滑及防腐蚀功能,能显著改善滑轨表面的润滑性能和抑制高温高速燃气流的烧粘-腐蚀破坏作用;滑轨表面烧粘-腐蚀程度与发动机推进剂的铝粉性质及含量(残渣量)直接相关,各种防护涂层的主要破坏形式为烧蚀、热冲蚀以及粘渣破坏,由于残渣含腐蚀物,有必要在烧粘后及时清洗并施行二次防护,其中热固型MoS2干膜的防护性能优于常温固化型MoS2干膜,但由于燃气严重的热冲蚀,还需采用常温快速固化的MoS2干膜进行现场修补.The ablative adhesion and erosion of high temperature (2000-3000°C) and ultra-high speed (>5 Ma) two-phase exhaust on the slide track surface of a missile launcher, together with the corrosive action of the ablation residue on the slide track surface in the humid and salt mist environment, account for the breakdown and the decreased service life of the launcher. Thus it is imperative to ensure the requirement for war readiness and logistics by applying effective lubrication and protection treatment to the weapon launching system. Accordingly, various molybdenum disulfide-based bonded solid lubricant films were investigated for such protective purposes. The causes and features of the ablation and corrosion by the exhaust and ablation-adhesion residue were discussed as well. The results of a series of environmental condition tests and simulating tests on an engine bench tester indicated that the ablation and corrosion degree of the slide track of the missile launcher was dependent on the engine type and the type and amount of the detonative agent, while it was effectively abated by coating the slide track surface with various MoS2-based bounded solid lubricant films. A special MoS2-based bounded solid lubricant film was successfully developed for the lubrication and protection of the slide track of the missile launcher, which passed the missile field-launching test and might find promising engineering applications in the related military fields.

关 键 词：滑轨 发动机燃气 烧粘-腐蚀 MoS2干膜 润滑与防护 

分 类 号：TH117.3[机械工程—机械设计及理论]