摘要
目的研究低黏度0W-16机油的减摩性能。方法选取3种减摩剂MoDTC、GMO和油酸酰胺,分别按一定比例加入到0W-16基础油中,获得单剂油样,并选取2种0W-16全配方机油(A-1油和A-2油),利用SRV-IV试验机测试润滑油样的减摩性能和极压性能,利用傅立叶红外光谱仪和油料元素光谱分析仪分析机油油样结构,并利用3D光学表面轮廓仪表征缸套块磨痕形貌。结果对于单剂油样,0W-16基础油分别加入MoDTC、GMO和油酸酰胺后,平均摩擦系数由0.198分别减小到0.088~0.116、0.167~0.178和0.179~0.194,缸套块磨痕平均深度由3.59mm分别减小到0.44~0.52mm、2.11~2.24mm和3.19~3.44mm。对于0W-16全配方机油,在摩擦润滑试验低温区,A-1油比A-2油摩擦系数低,随着温度升高,A-1油和A-2油的摩擦系数进一步减小;摩擦润滑试验后,A-1油和A-2油的缸套块磨痕平均深度分别为0.13mm和0.18mm。在极压试验中,A-1油和A-2油的极压值分别为1500 N和900 N。结论在0W-16基础油中分别加入3种减摩剂后,MoDTC的减摩和抗磨作用最好,油酸酰胺的减摩和抗磨作用最差。对于0W-16全配方机油,在摩擦润滑试验低温区,A-1油中的无灰减摩剂和MoDTC产生协同作用,表现出更低的摩擦系数;随着温度升高,A-1油和A-2油中的ZDDP与MoDTC产生协同作用,进一步降低摩擦系数。在极压试验中,A-1油中的ZDDP与其他添加剂产生协同作用,表现出更大的极压值。添加剂之间的协同作用对油品节能性能产生重要影响。
The work aims to investigate the friction-reduced property of 0W-16 low viscosity engine oil.Three kinds of friction modifiers MoDTC,GMO,and oleamide were respectively added into 0W-16 base oil to obtain oil sample with single friction modifier.Moreover,two kinds of fully-formulated low viscosity engine oil 0W-16(oil A-1 and oil A-2)were selected.The friction-reduced property and extreme pressure property of the lubricating oil samples were tested by the SRV-IV tribometer.The compositions of fully-formulated engine oil samples were analyzed by FTIR spectormeter and oil element spectormeter.The wear scar of cylinder liner segment was analyzed by 3D optical surface profilometer.Compared with 0W-16 base oil,oil sample with single friction modifier of MoDTC,GMO and oleamide respectively had an average friction coefficient decreasing from 0.198 to 0.088~0.116,0.167~0.178 and 0.179~0.194,respectively.The average wear scar depth of cylinder liner segments decreased from 3.59mm to 0.44~0.52mm,2.11~2.24mm and 3.19~3.44mm,respectively.For the fully-formulated engine oil 0W-16,oil A-1 showed lower friction coefficient than oil A-2 in low temperature testing condition.When the testing temperature increased,the friction coefficients of oil A-1 and oil A-2 decreased further.The average wear scar depth of cylinder liner segments of oil A-1 and oil A-2 were 0.13mm and 0.18mm respectively after friction and lubrication test.The extreme pressure of oil A-1 and oil A-2 was 1500 N and 900 N respectively in extreme pressure test.When the base oil 0W-16 is blended with the three kinds of friction modifiers respectively,the oil with MoDTC shows the best friction-reduced property and anti-wear property,and the oil with oleamide shows the worst friction-reduced property and anti-wear property.For the fully-formulated engine oil A-1 in low temperature testing condition,there is a good synergistic effect between MoDTC and no-ash friction modifier,and oil A-1 shows lower friction coefficient.For the oil A-1 and oil A-2,when the testing temp
作者
郝丽春
杨鹤
张威力
卢文彤
刘顺涛
张建荣
HAO Li-chun;YANG He;ZHANG Wei-li;LU Wen-tong;LIU Shun-tao;ZHANG Jian-rong(SINOPEC Research Institute of Petroleum Processing,Beijing 100083,China)
出处
《表面技术》
EI
CAS
CSCD
北大核心
2020年第9期72-80,117,共10页
Surface Technology
