纳米颗粒增强木质滑动轴承的制备及摩擦磨损性能研究  

Preparation of nano particles reinforced wooden sliding bearing and study on its friction and wear property

作　　者：王奇 蒋康 夏余平 彭博[1] 刘克非 吴庆定[1] WANG Qi;JING Kang;XIA Yuping;PENG Bo;LIU Kefei;WU Qingding(Central South University of Forestry ＆ Technology, material forming technology research institute, Changsha 410004, Hunan, China;Hunan Traffic Science Research Institute Co., Ltd., Changsha 410015, Hunan, China)

机构地区：[1]中南林业科技大学材料成形技术研究所,湖南长沙410004 [2]湖南省交通科学研究院有限公司,湖南长沙410015

出　　处：《中南林业科技大学学报》2018年第6期130-134,共5页Journal of Central South University of Forestry & Technology

基　　金：湖南省工业领域重点研发计划项目(2017GK2255);湖南省自然科学基金/常德市联合基金项目(2016JJ5009);湖南省交通运输厅科技进步与创新计划项目(201731);长沙市科技计划资助项目(Kq1701098)

摘　　要：以杨木粉末为基材、纳米刚玉粉为增强因子,采用温压成形技术制备纳米颗粒增强木质滑动轴承,研究了纳米刚玉粉含量对木质滑动轴承的摩擦系数、磨耗量和承载能力的影响规律,并对试件摩擦磨损表面微观形貌进行了表征。结果表明:纳米刚玉粉对木质滑动轴承的摩擦磨损性能具有明显的改善作用,当纳米刚玉粉含量为6%时效果最佳;含6%纳米刚玉粉的木质滑动轴承的磨合期短(~7 min)、摩擦系数小(~0.11)、极限PV值高(161.7 MPa·m·min^(-1)),可望在一定工况下替代烧结青铜用于轻纺机械。Taking poplar powder as substrate, nano corundum powder as reinforcement factor, nano particle reinforced wooden sliding bearing was prepared by warm compaction technology. The influence of nano corundum powder content on the friction coefficient, wear capacity and bearing capacity of the wooden sliding bearing was studied, and the surface micro-morphology of the friction pair was characterized and analyzed. The results show that the effect of nano corundum powder on the friction and wear properties of wood sliding bearings is obviously improved. When the content of nano-alumina powder is 6%, the modified effect is optimal, its bearing period is short（ ～ 7 min）, its friction coefficient is small（ ～ 0.11）, ant its limit PV value is high（161.7 MPa·m·min^-1）. So it is expected to replace the powder metallurgy copper-based oil bearing in light spinning machinery under certain conditions.

关 键 词：木质滑动轴承 温压成形 纳米增强 摩擦系数 极限PV值 

分 类 号：S784[农业科学—林学]