高硅铝合金缸套材料摩擦学性能研究  

Wear property of high-silicon aluminium alloy cylinder sleeve

作　　者：秦丽柏[1] 孙廷富[1] 张树勇[2] 任政[1] 胡莲卡[1] 黄文淑[3] 李岩[1] 张华[1] 刘环恩[1] 

机构地区：[1]中国兵器科学研究院宁波分院,浙江宁波315103 [2]中国北方发动机研究所,山西大同037036 [3]包头北奔重型汽车有限公司,内蒙包头014032

出　　处：《兵器材料科学与工程》2010年第6期69-72,共4页Ordnance Material Science and Engineering

摘　　要：采用坦克专用机油润滑的往复式摩擦磨损试验方法,分别进行喷射沉积高硅铝合金缸套材料与发动机成品活塞环材料摩擦配副的油品试验、与各类成品活塞环材料的摩擦配副试验。摩擦配副的油品试验结果表明,低温型油品润滑比高温型及通用型油品润滑的磨损量、摩擦因数均小;活塞环摩擦配副试验结果表明,高硅铝合金磨损量及摩擦因数均较小,其中与准126激光陶瓷活塞环、磷化YH31活塞环摩擦配副效果更优。分析表明,高硅铝合金的摩擦学机制是软基体上分布的高硬度质点相起到耐磨与支撑作用,软基体磨下的凹坑具有储油与润滑作用。Through the reciprocating friction and wear method, and with tank special lubricating oil, wear experiments of spray- formed high-silicon aluminium are investigated with friction pair of engine piston ring and other piston rings. For friction pair of engine piston ring, wearing capacity and friction coefficient of high-silicon aluminium alloy are lower under low temperature oil lubrication than that under high temperature oil and general oil lubrication. For friction pair of other piston rings, both wearing capacity and friction coefficient of high-silicon aluminium alloy are lower, and wear properties of high-silicon aluminium alloy is better with friction pair of th126 mm laser ceramic piston ring and YH31 piston ring phosphide. The friction mechanism analysis of high-silicon aluminium alloy indicates that high-hardness particles in soft parent metal perform function of wearing resistance and supporting. Dents on soft parent metal surface produced by friction can store oil and are helpful to lubrication.

关 键 词：高硅铝合金缸套 活塞环 摩擦副 磨损量 摩擦因数 

分 类 号：TK425[动力工程及工程热物理—动力机械及工程]