贾卫平,吴蒙华,杨帆.复合电沉积工艺参数对镍晶微铸件表面性能的影响[J].表面技术,2014,43(5):55-60.
JIA Wei-ping,WU Meng-hua,YANG Fan.Effect of Combined Electro-deposition Parameters on Surface Performances of Nickel Micro Electroforming Parts[J].Surface Technology,2014,43(5):55-60 |
| 复合电沉积工艺参数对镍晶微铸件表面性能的影响 |
| Effect of Combined Electro-deposition Parameters on Surface Performances of Nickel Micro Electroforming Parts |
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| DOI： |
| 中文关键词: 多 场复合作用 电沉积工艺参数 镍晶微铸件 表面性能 |
| 英文关键词:multi-field composite action electro-deposition process parameters nickel-crystal micro-electroforming part surface properties |
| 基金项目:国家自 然科学基金( 50975034) ; 辽宁省教育厅重点实验室项目 ( L2012437) |
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| 中文摘要: |
| 目 的 将超声 波、磁场引 入到 微电 铸过程中, 改善电 沉积镍晶 微构件的 表面性能。 方法 改变电流密度、脉冲占 空比、超声 波功率、磁场强度的方向和强度, 进行电沉积镍晶微铸件, 分析这些工艺参数对微铸件表面形貌和显微硬度的影响。 结果 微铸件的显微硬度随磁场强度的增大而显著提高, 随着阴极电流密度、超声 波功率及脉冲占 空比的增大呈现出 先升高、后下降的规律, 其中脉冲占 空比对电铸层显微硬度的影响较弱。 优选的工艺参数为: 垂直磁场强度 0. 8 T, 阴 极电 流密度 2 A /dm2, 超声 波功率 240W, 脉冲占 空比 20% 。 结论 引 入超声 波和磁场后可优化电沉积环境, 细化电铸层晶粒尺寸, 改善电铸层微观形貌, 提高微铸件显微硬度。 |
| 英文摘要: |
| Objective In order to improve the surface properties of electro-deposited nickel micro-electroforming parts, ultrasonic and magnetic fields were introduced into the micro electroforming process. Methods Current intensity, pulse duty cycle, ultrasonic power, direction and intensity of magnetic field strength were altered during the electro-deposition of nickel micro-electroforming parts, and the effects of the above parameters on the performance of the surface morphology and microhardness of the microelectroforming parts were analyzed. Results The micro-hardness of the micro-casting part increased significantly along with the increase of the magnetic field intensity, while first increased and then decreased along with the increasing current intensity, pulse duty cycle and ultrasonic power, among which the pulse duty cycle had weaker effect on the micro-hardness as compared to the other parameters. The optimized parameters were: vertical magnetic field intensity 0. 8 T, cathode current density 2 A /dm2, ultrasonic power 240 W, and pulse duty cycle 20% . Conclusion Electrodeposition environment could be optimized after introducing ultrasound and magnetic fields so as to refine the grain size, improve the electroformed layer morphology and enhance the microhardness of the microcasting parts. |
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