润滑条件对黄豆/不锈钢摩擦副摩擦学行为的影响  

Effect of Lubrication Conditions on Tribological Behavior of Friction Pairs of Soybean and Stainless Steel

作　　者：黎繁 田斌[1] 史俊丰 冉志勇 LI Fan;TIAN Bin;SHI Junfeng;RAN Zhiyong(School of Artificial Intelligence,Beijing Technology and Business University,Beijing 100048,China)

机构地区：[1]北京工商大学人工智能学院,北京100048

出　　处：《润滑与密封》2023年第2期117-122,共6页Lubrication Engineering

基　　金：国家自然科学基金项目(32172277);北京市教育委员会科技计划一般项目(SQKM201710011002)。

摘　　要：食品机械加工中的摩擦磨损直接影响着食品安全问题。选用黄豆与316L不锈钢进行配副,采用滑动摩擦磨损试验机,研究干摩擦和水润滑条件对其摩擦学性能的影响。利用光学显微镜、光学三维形貌仪和红外光谱仪对试样的表面形貌、粗糙度和磨损表面成分进行了分析。结果表明:干摩擦条件下,黄豆/316L不锈钢摩擦副的平均摩擦因数波动较小,约为0.24,水润滑条件下其平均摩擦因数达到干摩擦条件下的4.4倍左右,且在摩擦过程中存在反复波动;与干摩擦相比,水润滑条件下不锈钢试样表面的磨痕宽度提高约10%,而黄豆试样表面的磨痕宽度的增加幅度约高达160%;水润滑摩擦过程中不锈钢磨痕表面产生更多黄豆分解的有机物,其磨痕表面的犁沟数量和深度均显著减少,黄豆试样磨痕表面基本没有犁沟;干摩擦条件下黄豆/不锈钢的磨损机制以磨粒磨损为主,而水润滑条件下,黏着磨损显著增加。Food safety is directly affected by friction and wear in processing by food machinery.Soybeans and 316L stainless steel were chosen as friction pairs,and sliding friction and wear testing machine was used to study the influence of dry friction and water lubrication conditions on their tribological properties.The surface topography,roughness and worn surface composition of the specimen were analyzed respectively by optical microscopy,optical three-dimensional topography and infrared spectroscopy.The results show that the average friction coefficient of friction pair of soybean and 316L stainless steel is about 0.24 with much lower fluctuation under dry condition.The average friction coefficient under water lubrication condition is about 4.4 times of that under dry friction condition,with much more and bigger fluctuations in the friction process.Compared with dry friction,the wear mark width of stainless steel specimen and soybean specimen increases respectively by about 10%and as high as 1.6 times under water lubrication.More organic matter decomposed by soybeans is found on the worn surface of the stainless steel under water lubrication friction.The number and depth of the plough grooves on the worn surface of the stainless steels significantly reduced,and there are no plough grooves on the worn surface of the soybean specimen under water lubrication.The wear mechanism of soybeans and stainless steel under dry friction is mainly abrasive wear,while the adhesive wear increases significantly under water lubrication.

关 键 词：黄豆 不锈钢 干摩擦 水润滑 摩擦 磨损 

分 类 号：TH117.1[机械工程—机械设计及理论]