摘要
以QAl10-4-4铝青铜为研究对象,根据QAl10-4-4铝青铜关节轴承的加工方式对其进行热处理,利用高速高温摩擦磨损试验机(MG-2000)进行销-盘模拟试验,采用Box-Behnken响应曲面试验方案建立转速、载荷以及温度与其摩擦因数、磨损量之间的回归模型,探究了工艺参数对QAl10-4-4铝青铜摩擦磨损特性的影响顺序,并给出该滑动关节轴承的最优工况条件。结果表明,工艺参数对摩擦因数的影响顺序为:转速>载荷>温度,转速与载荷的交互作用对摩擦因数有显著影响;工艺参数对磨损量的影响顺序为:载荷>转速>温度,转速与温度的交互作用对磨损量有显著影响。试验条件下,QAl10-4-4铝青铜关节轴承最优运行的工况参数:转速为150 r/min、载荷为108 N、温度为100℃,此时QAl10-4-4铝青铜的摩擦因数为0.049,磨损量为0.017 3 g。
Taking QAl10-4-4 aluminum bronze material as the research object, the high temperature friction and wear tester(MG-2000) pin-plate of simulation experiment was conducted according to the QAl10-4-4 aluminum bronze joint bearing processing way to design heat treatment process. The box-Behnken response surface test scheme was adopted to establish a regression model between the three operating conditions of rotating speed, load or temperature and the friction coefficient or wear amount. The influence sequence of process parameters on the friction and wear characteristics of QAl10-4-4 aluminum bronze were explored to obtain the optimal operating conditions of the sliding joint bearing. The results indicate that the influence order of three operating parameters on friction coefficient is: speed>load>temperature, and the interaction between the speed and the load has a significant influence on the friction coefficient. The influence order on wear is: load>speed>temperature, and the interaction between speed and temperature has a significant impact on wear quantity. The optimal parameters for QAl10-4-4 aluminum bronze joint bearing are presented as follows: the speed of 150 r/min, the load of 108 N, temperature of 100 ℃, where the QAl10-4-4 aluminum bronze of the friction coefficient is 0.049, and the wear quantity is 0.017 3 g.
作者
李辉
闫金顺
Li Hui;Yan Jinshun(Department of Mining Engineering,Lüliang College;College of Mechanical Engineering,North University of China)
出处
《特种铸造及有色合金》
CAS
北大核心
2022年第2期190-194,共5页
Special Casting & Nonferrous Alloys
基金
山西省高等学校科技创新资助项目(2019L0978)。
