摘要
重载条件下机械装备螺栓联结界面摩擦性能不足极易导致失效行为。为探究表面处理对螺栓联结界面摩擦与抗滑移性能的作用效果,提高界面摩擦性能,首先观测分析喷砂、喷砂喷漆、不同尺寸波浪纹织构的表面参数,然后采用摩擦磨损试验分析不同表面的摩擦磨损规律,并对其滑移过程进行仿真分析。结果表明:喷砂表面的摩擦因数最大,抗滑移性能最好,但耐磨性不如波浪纹织构表面;喷砂喷漆表面主要由固化剂与锌粉颗粒组成,硬度极低,且表面存在大量微裂纹,导致耐磨性较差;波浪纹织构表面的耐磨性较好,且其摩擦因数可达到与喷砂喷漆表面相近的水平。因此,在存在重载、循环载荷的应用场合,可考虑用波浪纹织构对联结界面进行处理,在保证其摩擦因数的同时增加耐磨性。提出一种耐磨、摩擦因数大的波浪纹织构表面,对增强螺栓联结界面摩擦性能具有指导意义。
Under heavy load conditions,insufficient friction performance of mechanical equipment bolt connection interface can easily lead to failure behavior.Therefore,this paper is to explore the influence of different surface treatments on the friction performance of the bolt connection interface,and improve the friction performence.First,the surface parameters of sandblasting,sandblasting and paint spraying,different sizes of wave texture are observed and analyzed.Then the tests are used to analyze the different friction behaviors of different interfaces.Finally,the slip process of different surfaces is simitated and analyzed.The facts proved the followings:the sandblasted surface has the largest friction factor and the best anti-slip performance,but the wear resistance is not as good as the wave texture surface.The painted surface is mainly composed of curing agent and zinc powder particles.The hardness is extremely low,and there are a large number of micro-cracks on the surface,resulting in poor wear resistance.The wave-textured surface has good wear resistance,and its friction factor can reach a level similar to that of painted surface.Therefore,when there are heavy loads and cyclic loads,using wave texture to treat the connection interface can be considered.It will increase the wear resistance while ensuring its friction factor.This paper proposes a wavy textured surface with wear resistance and high friction factor,which has certain guiding and reference significance for improving the friction performance of the bolt connection interface.
作者
王建梅
陈明达
宁可
WANG Jianmei;CHEN Mingda;NING Ke(Engineering Research Center Heavy Machinery of Ministry of Education,Taiyuan University of Science and Technology,Taiyuan 030024,China)
出处
《中国表面工程》
EI
CAS
CSCD
北大核心
2022年第1期247-256,共10页
China Surface Engineering
基金
国家自然科学基金(51875382)
山西省重点研发计划(201803D421103)
山西省回国留学人员科研(2020-125)资助项目。
关键词
表面处理
喷砂
喷漆
表面织构
螺栓联结
摩擦因数
滑移
surface treatment
sandblasting
painting
surface texture
bolt connection
friction factor slip
