《【毕业论文设计】镍合金电化学抛光研究【毕业论文设计】》-毕业论文.doc

1 毕业设计（论文） 题 目 镍合金抛光工艺的研究 专 业 班 级 学 生 指导教师 2013 年 镍合金抛光的研究 学 科： 材料物理与化学 作 者： （签名） 指导教师： （签名） 摘要 镍合金由于在各种机械加工、拉拔过程中，材料表面会出现各种加工的刀痕，同时润滑剂也会浸入材料的表面，而这种现象严重影响了设备的美观，降低了设备的附加值。抛光具有抛光效果好、效率高等特点，尤其对于形状复杂的工件来说，是一种很有效的表面处理方法，已在工业上得到广泛的应用。本文提出了采用化学抛光与电化学抛光对镍合金进行表面处理，利用正交方法筛选出最佳配方，并对其抛光工艺进行了优化，分析了各个组分及工艺参数对抛光效果的影响。采用抛光质量失重法，表面形态观测法，电化学测试等对试样进行检测分析。 通过试验获得镍合金的电化学抛光最佳配方与工艺参数：磷酸850ml/L、乙醇90ml/L、乙酸铵5g/L，抛光时间10min，水浴温度50℃，电流密度为26A/dm2。 关键词： 镍合金，抛光，正交实验 Study on nickel alloy polishing technology Specialty: Material Physics Chemistry Undergraduate: Mo Cao (Signature): Supervisor : Lajun Feng (Signature): Abstract Nickel alloy because in various mechanical processing, drawing process, the surface of material will appear processing point, the surface of lubricant may immersed materials, this kind of phenomenon seriously affected equipment beautiful, reduces the equipment added value. Polishing has good effect and high efficiency polishing characteristics, especially for the complex shape of workpiece, it is a kind of very effective in surface treatment, has widely applied in industry. This paper proposes using chemical polishing and electrochemical polishing surface treatment of nickel alloy were using orthogonal method, and the optimum formula optimized polishing technology, analyzes the various components and process parameters on the polishing effect. Adopt polishing quality weight loss, surface morphology observation method, electrochemical test of the samples testing analysis. Through the experiment won nickel alloy of electrochemical polishing the best formula and technology parameters: phosphoric acid 850ml/L, ethanol 90ml/L, 5g/L ammonium acetate, polishing time 10min, water bath temperature 50 ℃, current density of dm2 under section 26A. Keywords： nickel alloy, polishing, orthogonal experiment 目 录 TOC \o 1-3 \h \z \u HYPERLINK \l _Toc295997443 摘 要 PAGEREF _Toc295997443 \h i HYPERLINK \l _Toc295997444 ABSTRACT PAGEREF _T