机械密封端面摩擦机制与摩擦状态  

Friction Mechanism and Friction State of End Faces of Mechanical Seals

作　　者：魏龙[1] 顾伯勤[1] 孙见君[2] 冯秀[2] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏南京210009 [2]南京化工职业技术学院,江苏南京210048

出　　处：《润滑与密封》2008年第6期38-41,共4页Lubrication Engineering

基　　金：江苏高校高新技术产业发展项目(JHB05-29);南京市科技发展计划项目(200603009);江苏省“六大人才高峰”资助项目(07-D-027)

摘　　要：机械密封端面摩擦状态是决定机械密封工作寿命和密封性能好坏的关键因素。从微观角度探讨了机械密封端面摩擦机制,分析了机械密封端面分别处于干摩擦、边界摩擦、流体摩擦和混合摩擦状态时的工作特性,介绍了机械密封端面摩擦状态的判断方法,分析了端面摩擦状态对机械密封性能的影响。对于普通机械密封,端面的最佳摩擦状态应该是混合摩擦状态,如密封性能要求较高,则应该是边界摩擦状态。The friction state of the end faces of mechanical seals is a key factor that can decide their operating life and sealing performance.The friction mechanism of the end faces of mechanical seals was discussed from a microscopic point of view.The operating characteristic in different friction states of mechanical seals such as dry friction, fluid friction,boundary friction and mixed friction was analyzed.The methods for judging friction states of the end faces of mechanical seals were summarized.The influence ...

关 键 词：机械密封 摩擦机制 摩擦状态 

分 类 号：TH136[机械工程—机械制造及自动化]