An Zhibo,Jin Zhuji*,Jiang Guannan,et al.Electrodeposition process of nickel-tungsten alloy coating for polishing diamond[J].Plating & Finishing,2023,(1):71-79.[doi:10.3969/j.issn.1001-3849.2023.01.011]
金刚石抛光用镍钨合金镀层的电镀制备工艺
- Title:
- Electrodeposition process of nickel-tungsten alloy coating for polishing diamond
- 分类号:
- TQ153.2
- 文献标志码:
- A
- 摘要:
- 采用脉冲电镀的方法快速制备耐磨损的超厚镍钨合金镀层,用以摩擦化学抛光金刚石,以实现金刚石的快速去除。采用正交实验研究了脉冲频率、平均电流密度、占空比对镀层组分、显微硬度、内应力和沉积速率的影响。最终在脉冲频率 200 Hz 、平均电流密度 9 A/dm 2 和占空比 0.8 的条件下制备了显微硬度 472.76 HV 、内应力 80.11 MPa 、厚度为 0.35 mm 的镍钨合金镀层。经金刚石摩擦化学抛光实验验证,制备的镍钨合金抛光盘具有优异的抛光性能,相较于铸铁抛光盘,镍钨合金抛光盘具有更高的金刚石去除率( 0.71 μ m/min )、更低的磨损量( 0.16 g )和磨削比( 94.25 )。
- Abstract:
- : The pulse electrodeposition was used to develop the wear-resistant thick nickel-tungsten alloy which is used to dynamic friction polish diamond to realize rapid removal. The effects of pulse frequency , average current density and duty cycle on tungsten content , micro-hardness , internal stress and deposition rate were studied by orthogonal experiment. Finally , the nickel-tungsten alloy coating with hardness of 472.76 HV , internal stress of 80.11 MPa and thickness of 0.35 mm were fabricated under the deposition conditions of the pulse frequency of 200 Hz , the average current density of 9 A/dm 2 and the duty cycle of 0.8. The dynamic friction polishing diamond experiments showed that the nickel-tungsten alloy polishing disc had excellent polishing performance. Comparing with cast iron polishing disc , the nickel-tungsten alloy polishing disc had higher diamond removal rate ( 0.71 μ m/min ), lower wear loss ( 0.16 g ) and wear ratio ( 94.25 ) .
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备注/Memo
收稿日期: 2022-03-16 修回日期: 2022-04-02 作者简介: 安志博( 1997 ―),男,硕士研究生, email : 1393222693@qq.com * 通信作者: 金洙吉, email : kimsg@dlut.edu.cn?/html>