聚四氟乙烯油封密封性能的研究

聚四氟乙烯

聚四氟乙烯油封密封性能的研究
骆小勇 王勇 彭兵 范清广州机械科学研究院,广东广州510700

摘　要:针对目前国产聚四氟乙烯油封泵油效果不好和跟随性差的问题,研究了动压螺旋槽设计参数对油封密封性能及聚四氟乙烯材料烧结工艺对油封跟随性的影响。通过理论分析和试验验证,结果表明：合理选择动压螺旋槽的设计参数,能有效改善聚四氟乙烯油封的泵油效果,提高其密封性能;选择合适的烧结工艺,可以提高聚四氟乙烯油封的回弹性,从而提高其跟随性,改善其密封效果。[著者文摘]

关键词:聚四氟乙烯油封 动力螺旋槽 烧结工艺
分类号:　TB42[著者标引]文献标识码：A文章编号：0254-0150（2010）3-112-4栏目信息：开发应用
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Research on the Sealing Properties of PTFE Oil SealLuo Xiaoyong Wang Yong Peng Bing Fan QingGuangzhou Mechanical Engineering Research Institute,Guangzhou Guandong 510700,ChinaAbstract:The current domestic PTFE oil seal has poor pumping oil effect and following performance.Aimed at this problem,the effects of hydrodynamic spiral groove design parameters on sealing performance and the sintering process on the following performance were researched.Through theoretical analysis and experimental validation,it is shown that a reasonable hydrodynamic spiral groove design parameters can effectively improve the pumping oil effect and sealing performance of PTFE oil seal;a suitable sintering process can improve the elasticity of PTFE oil seal,thereby enhancing its following performance,improving the sealing performance.[著者文摘]

Key words: PTFE oil seal; dynamic spiral groove; sintering process