MoS2和石墨对青铜基含油轴承摩擦性能的影响  

Effect of MoS and graphite on friction properties of bronze oil bearing

作　　者：黄钊炫 兰江 杨诗钰 邱天旭 申小平 HUANG Zhao-xuan;LAN Jiang;YANG Shi-yu;QIU Tian-xu;SHEN Xiao-ping(School of Material Science and Engineering,Nanjing University of Science and Technology,Nanjing 210094,China;Engineering Training Center,Nanjing University of Science and Technology,Nanjing 210094,China)

机构地区：[1]南京理工大学材料科学与工程学院,南京210094 [2]南京理工大学工程训练中心,南京210094

出　　处：《粉末冶金技术》2020年第5期363-370,共8页Powder Metallurgy Technology

摘　　要：通过改变MoS2(质量分数1.0%~2.0%)和石墨(质量分数0~1.0%)的成分比例,在一定滑动线速度下,测量青铜基含油轴承承受压强的极限值,研究MoS2和石墨含量对青铜基含油轴承的力学性能和摩擦性能的影响。结果表明:在不加入石墨的情况下,随着MoS2含量的增加,含油轴承的负荷×线速度(pv)极限值降低,其中青铜-1MoS2(MoS2质量分数1.0%)含油轴承极限pv值最高,达到2.940 MPa·m·s-1;在同时加入石墨和MoS2的情况下,随着石墨含量的增加,含油轴承的摩擦因数降低,其中青铜-1MoS2-1石墨(MoS2质量分数1.0%,石墨质量分数1.0%)含油轴承摩擦因数最低,为0.038;石墨能够改善含油轴承的摩擦性能,但是会大幅度降低其力学性能。By changing the contents of MoS2(mass fraction 1.0%~2.0%) and graphite(mass fraction 0~1.0%), the bearing pressure limit value of bronze oil bearing at the certain sliding linear velocity was measured, the effects of MoS2 and graphite contents on the mechanical and frictional properties of bronze oil bearing were studied. The results show that, the limit value of load×linear velocity(pv) for the oil bearings decreases with the increase of MoS2 content without graphite addition, and the bronze-1 MoS2(1.0%MoS2, mass fraction) oil bearing has the highest pv value of 2.940 MPa·m·s-1. In the case of adding graphite and MoS2 at the same time, the friction coefficient of the oil bearing decreases with the increase of the graphite content, and the bronze-1 MoS2-1 graphite(1.0%MoS2 and 1.0%graphite, mass fraction) oil bearing has the lowest friction coefficient of 0.038. Graphite can improve the friction properties of oil bearings, but it may greatly reduce the mechanical properties of oil bearings.

关 键 词：青铜 含油轴承 摩擦 二硫化钼 石墨 

分 类 号：TG146[一般工业技术—材料科学与工程]