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.