船舶艉轴机械密封材料摩擦磨损性能研究  

Friction and Wear Properties of Mechanical Sealing Materials for Ship Stern Shaft

作　　者：臧红双 白秀琴[1,2] 梁兴鑫 郭智威[1,2] 袁成清[1,2] ZANG Hongshuang;BAI Xiuqin;LIANG Xingxin;GUO Zhiwei;YUAN Chengqing(School of Transportation and Logistics Engineering,Wuhan University of Technology,Wuhan Hubei 430063,China;State Key Laboratory of Maritime Technology and Safety,Wuhan University of Technology,Wuhan Hubei 430063,China;School of Naval Architecture,Ocean and Energy Power Engineering,Wuhan University of Technology,Wuhan Hubei 430063,China)

机构地区：[1]武汉理工大学交通与物流工程学院,湖北武汉430063 [2]水路交通控制全国重点实验室(武汉理工大学),湖北武汉430063 [3]武汉理工大学船海与能源动力工程学院,湖北武汉430063

出　　处：《润滑与密封》2023年第11期130-134,149,共6页Lubrication Engineering

基　　金：工业和信息化部高技术船舶科研项目(MC-201917-C09)。

摘　　要：为探究船舶艉轴机械密封用高分子材料在实际工作环境下的摩擦磨损性能,选用浇注型聚氨酯弹性体(CPU)、聚对苯二甲酸乙二醇酯(PET)、聚对苯二甲酸丁二酯(PBT)、玻璃纤维改性聚己二酰丁二胺复合材料(GF/PA46)与玻璃纤维改性聚四氟乙烯复合材料(GF/PTFE)5种材料,在载荷为0.5 MPa,线速度为7 m/s的工况下开展摩擦磨损性能测试。结果表明:重载、高速的工况使得CPU、PET、PBT、GF/PA46材料出现了不同程度的剥落与犁沟,摩擦因数与磨损量较大;GF/PTFE材料仅出现一些相对轻微的撕裂和磨痕,相较于CPU、PET、PBT、GF/PA46材料,GF/PTFE的平均摩擦因数分别下降了66.6%、80.4%、86.1%、87.8%,单位时间磨损量分别下降了91.7%、92.7%、88.6%、97.0%,摩擦磨损性能最优。In order to investigate the friction and wear properties of polymer materials used for mechanical seals of ship stern shafts in actual working environments,five materials,namely,cast polyurethane elastomer(CPU),polyethylene terephthalate(PET),polybutylene terephthalate(PBT),glass fiber modified polyhexamethylene butylamine(GF/PA46)composite,and glass fiber modified polytetrafluoroethylene(GF/PTFE)composite,were selected,and their friction and wear performance tests were conducted under the load of 0.5 MPa and the linear velocity of 7 m/s.The results show that CPU,PET,PBT,GF/PA46 materials exhibit varying degrees of peeling and furrowing under high load and high rotational speed conditions,resulting in large friction coefficients and wear losses,while GF/PTFE composites only exhibit some rela⁃tively slight tears and wear marks,exhibiting optimal friction and wear performance.Compared to CPU,PET,PBT,and GF/PA46,the average friction coefficient of GF/PTFE is decreased by 66.6%,80.4%,86.1%,and 87.8%,respectively,and the wear amount per unit time is decreased by 91.7%,92.7%,88.6%,and 97.0%,respectively.The friction and wear performance is optimal.

关 键 词：艉轴机械密封 软环材料 复合材料 摩擦磨损 密封性能 

分 类 号：TH117.1[机械工程—机械设计及理论]