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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。
The reciprocating friction and wear test method of tank-dedicated oil lubrication was used to test the friction test of piston-ring material with high-silicon-aluminum alloy cylinder liner material and engine finished piston friction test. The friction test with various finished piston ring materials . The test results of the oil with friction pair show that the wear amount and the friction coefficient of the lubricating oil of the low temperature type are lower than those of the high temperature type and general type oil lubricants and the friction coefficient of the piston ring friction match test results show that the wear amount and friction of the high silicon aluminum alloy The factors are smaller, which with 126 ceramic laser piston ring, phosphating YH31 piston ring friction with the deputy effect is better. The analysis shows that the tribological mechanism of high-silicon aluminum alloy is the wear-resistant and supporting role of the high-hardness particles distributed on the soft matrix, and the pits under the soft matrix grinding have the function of oil storage and lubrication.