机械镀锌过程中锌粉运动的模拟分析  

Simulative analysis on the motion of zinc powder during mechanical zinc plating

作　　者：王树强[1] 陈钊 陈昊雷 周游 WANG Shuqiang;CHEN Zhao;CHEN Haolei;ZHOU You(School of Mechanical and Power Engineering,Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学机械与动力工程学院,辽宁沈阳110142

出　　处：《电镀与涂饰》2022年第1期23-27,共5页Electroplating & Finishing

基　　金：辽宁省自然科学基金(20170540722)。

摘　　要：基于离散单元法,采用EDEM离散元软件模拟机械镀锌过程,研究了冲击介质以不同速率冲击时锌粉的运动特性。结果表明,在机械镀锌过程中,锌粉先被纵向压缩,最后通过在纵、横方向进行重排和压缩变形得到镀锌层。上层锌粉主要发生变形和重排,中、下层锌粉以重排为主。当冲击速率为1.0 m/s时,所得机械镀锌层光滑平整,附着力为0级。模拟分析结果与实验结果基本吻合。The process of mechanical zinc plating was simulated by discrete element method using the EDEM software.The motion characteristics of zinc powder when being stricken by the impact medium at different velocities were studied.The results showed that the zinc powder was compressed longitudinally at the initial stage of mechanical zinc plating,and a zinc coating was finally formed by rearranging and compression deformation longitudinally and transversely.The zinc powder at top layer deformed and rearranged primarily,while the zinc powder at middle and bottom layers rearranged mainly.The zinc coating formed by mechanical plating at an impact velocity of 1.0 m/s was smooth and flat with an 0-grade adhesion.The simulation results were essentially consistent with the experimental results.

关 键 词：机械镀锌 计算机模拟 离散单元法 锌粉 运动 

分 类 号：TG174.446[金属学及工艺—金属表面处理]