硬质粒子摩擦法电铸新技术的研究  

A New Technique for Electroforming with Rotating Cathode in Hard Particles

作　　者：朱增伟[1] 朱荻[1] 

机构地区：[1]南京航空航天大学,江苏南京210016

出　　处：《中国机械工程》2006年第1期60-63,共4页China Mechanical Engineering

基　　金：国家自然科学基金资助项目(50075040);江苏省自然科学基金资助重点项目(BK2004005)

摘　　要：提出一种新型的硬质粒子摩擦法电铸技术,从理论上深入探讨了硬质粒子摩擦法电铸技术的沉积机理,并通过金属镍的电铸试验加以验证。理论分析和试验结果表明:硬质粒子摩擦法电铸技术在阴阳极之间引入硬质粒子,并通过电铸芯模的旋转,带动硬质粒子运动,使其不断摩擦、撞击阴极表面,能有效地去除沉积层表面的吸附气泡和积瘤,获得表面平整光亮的电铸层;通过减薄扩散层和扰动结晶过程,能细化晶粒,提高电铸速度。研究结果显示,硬质粒子摩擦法电铸技术在回转体类薄壁零件的电铸成形中有实用价值。A novel electroforming technique was described by the experiments of nickel. In this technique, the rotation of mandrel brought the movements of hard particles （such as ceramic beads） filling between the electrodes, which polished and impacted the surfaces of cathode during depositing. It is confirmed that the polishing and impacting can effectively remove the hydrogen bubbles and nodules, disturb the crystal nucleation, refine the grains and increase the limiting current density. Brightening and smoothing deposits of Ni are produced with high speed.

关 键 词：电铸成形 硬质粒子 镍 电沉积 

分 类 号：TQ153.4[化学工程—电化学工业]