电镀制备金刚石线锯时扫砂管喷砂口流速的仿真分析与实验研究  

Simulational and experimental studies on flow rates at the blow holes of bath agitation pipe during composite electroplating for manufacturing of diamond wire saws

作　　者：马晓宾 葛培琪[1,2] 毕文波[1] 孟剑峰[1] MA Xiaobin;GE Peiqi;BI Wenbo;MENG Jianfeng(School of Mechanical Engineering,Shandong University,Ji’nan 250061,China)

机构地区：[1]山东大学机械工程学院,山东济南250061 [2]山东大学高效洁净机械制造教育部重点实验室,山东济南250061

出　　处：《电镀与涂饰》2020年第3期133-137,共5页Electroplating & Finishing

基　　金：国家自然科学基金（51775317）;山东省重点研发计划（2019JZZY020209,2019GGX104007,2018GGX103039）

摘　　要：针对电镀金刚石线锯的过程中采用一端进液扫砂管时上砂槽内沉砂、上砂不均等现象,设计了中间进液扫砂管,并在1.40 m/s和1.80 m/s的入口流速下对两种扫砂管进行了流场仿真分析及实验研究。结果表明,两种结构扫砂管的仿真分析与实验结果都比较吻合。在研究的入口流速下,一端进液扫砂管上距离入水口最远的喷砂口的流速最大,随着喷砂口与入口距离的减小,流速逐渐减小;中间进液扫砂管左右两端喷砂口的流速最大,入水口两侧的流速大致对称分布。中间进液扫砂管在上砂槽内的搅拌效果优于一端进液扫砂管。As for the problems existing in the bath agitation pipe with an inlet at one end for manufacturing diamond wire saws by composite electroplating,such as sedimentation of diamonds in electroplating tank and ununiform distribution of diamonds in coatings,a bath agitation pipe with an inlet in the middle was developed.The flow fields when using the two types of bath agitation pipes were simulated at different inlet flow rates(1.40 m/s or 1.80 m/s)and velidated experimentally.It was shown that there was no big difference between the results of simulations and experiments.For the agitation pipe with an inlet at one end,the flow rate at the blow hole farthest from the inlet is the highest at both inlet flow rates,and the flow rate of a blow hole is decreased with the decreasing of its distance from the inlet.For the bath agitation pipe with an inlet in the middle,the highest flow rate appears at two ends,and the flow rates are in a symmetrical distribution at both sides of the inlet.The bath agitation pipe with an inlet in the middle has better agitation efficacy than the other.

关 键 词：金刚石线锯 复合电镀 搅拌 喷口 流速 仿真 

分 类 号：TQ153.2[化学工程—电化学工业]