冰箱压缩机连杆自润滑材料的优化设计  

Optimization Design on Refrigerator Compressor Connecting Rod Self-Lubricating Material

作　　者：钟言久 郭亚杰 刘阳 郑辰兴 

机构地区：[1]合肥工业大学机械工程学院,合肥233009 [2]中国电器科学研究院股份有限公司,广州510300

出　　处：《日用电器》2019年第6期108-112,共5页ELECTRICAL APPLIANCES

摘　　要：为了提高冰箱压缩机的可靠性,本文对其连杆自润滑材料进行优化设计。采用粉末冶金工艺制备了FeS/连杆材料和MoS2/连杆材料,对其进行金相组织观察和力学性能检测,并利用MM-200型环块式摩擦磨损试验机进行了摩擦磨损试验。试验结果表明,相比于FeS/连杆材料,MoS2/连杆材料组织中整体孔隙率降低,且FeS分布较为均匀,与组织结合能力强;随着MoS2含量的增加,MoS2/连杆材料的相对密度、硬度和抗弯强度呈下降的趋势。相比于FeS/连杆材料,利用MoS2高温分解生成FeS的MoS2/连杆材料的减摩耐磨性能较好;随着MoS2含量的增大,MoS2/连杆材料的摩擦系数呈降低的趋势,而磨损量呈现先降低后升高的趋势。本文中含5%MoS2连杆材料的综合摩擦学性能最好。In order to improve the reliability of the refrigerator compressor, this paper optimizes the design of its self-lubricating material. The FeS/linkage material and MoS2/linkage material were prepared by powder metallurgy process. The metallographic structure and mechanical properties were tested. The friction and wear test was carried out by MM-200. The experimental results show that the overall porosity of MoS2/link material is lower than that of FeS/link material, and the FeS distribution is more uniform and has strong binding ability to tissues. With the increase of MoS2 content, MoS2/link material Relative density, hardness and flexural strength tend to decrease. Compared with FeS/link material, the MoS2/linkage material with FeS generated by MoS2 pyrolysis has better anti-friction and wear resistance. With the increase of MoS2 content, the friction coefficient of MoS2/link material decreases. And the amount of wear appears to decrease first and then increase. The comprehensive tribological properties of 5 % MoS2 connecting rod materials are the best.

关 键 词：FES MOS2 连杆材料 摩擦磨损 优化设计 

分 类 号：TM925.21[电气工程—电力电子与电力传动]