摘要
介绍聚四氟乙烯油封的研究发展过程以及目前国内外材料和结构的研究现状,展望聚四氟乙烯油封的发展趋势,指出PTFE油封总体技术方案应从流体动力学分析、油封结构深层次研发、油封唇口材料的深层次应用及油封台架试验验证方面入手,针对改善高转速下油封的跟随性、高温下唇口过盈力的保持及降低高线速度下唇口磨损方面进行重点技术研究,通过对油封腰部韧性、唇口回复性及油封润滑状态等方面的控制,来保证产品达到使用要求的性能与寿命。
The research and development process of Polytetrafluoroethylene （PTFE） oil seal, and research status of itsmaterials and structures at home and abroad were presented. Development trend of PTFE oil seal was prospected. It waspointed out that the overall technical scheme of PTFE oil seal should be started from the aspects of fluid dynamics analy-sis, the structure development of oil seal, the application of lip materials and the test verification of oil seal by bench test,study the key technologies including improving the following of oil lips in high rotational speed, maintaining the lip interfer-ence force of oil seal at high temperature and reducing the wear of seal lip under high linear speed, and ensure that prod-ucts met the requirements of the performance and use life through controlling the lubrication status of oil seal, the lip recov-ery and the toughness on the waist of seal lip.
出处
《润滑与密封》
CAS
CSCD
北大核心
2015年第10期128-133,共6页
Lubrication Engineering
关键词
聚四氟乙烯油封
反旋螺纹槽
试验台
旋转轴
PTFE oil seal
anti-rotation screw groove
test bench
rotation axis
