超声波辅助化学镀Ni-P工艺研究

发布时间：2018-04-16 12:38

本文选题：超声波 + 化学镀　；参考：《表面技术》2017年03期

【摘要】：目的提高化学镀的效率,改善镀层的性能。方法采用普通化学镀镀液配方,选择超声波功率为90~150 W,频率为20、40 k Hz,研究了不同超声波条件对化学镀Ni-P合金镀层的影响。通过沉积速率、孔隙率、显微硬度、XRD、SEM及EDS等表征方法分析超声波的功率、频率对镀层各项性能的影响。结果超声波辅助化学镀的镀层表面质量得到改善,孔隙率明显降低,沉积速率明显提高。沉积速率随功率和频率的增大而升高,其中超声波频率40 k Hz、功率150 W的条件下镀速最高,为15μm/h,与水浴条件下的8.2μm/h相比提高了83%。镀层的硬度随超声波功率、频率的增大而提高,最高达到585 HV,比水浴条件下的468HV提高了25%。此外,超声波会改变镀层的P含量,提高镀层的结晶性。结论超声波辅助可以提高化学镀的镀速,改善镀层的性能。在超声波频率为40 k Hz、功率为150 W的条件下,镀层综合质量达到最佳,其抗腐蚀性能提高,最具实用性。
[Abstract]:Objective to improve the efficiency and properties of electroless plating.Methods the influence of different ultrasonic conditions on the electroless Ni-P alloy coating was studied by using the general electroless plating solution formula, the ultrasonic power was 90,150W and the frequency was 2040kHz.The influence of ultrasonic power and frequency on the properties of the coating was analyzed by means of deposition rate, porosity, microhardness and EDS.Results the surface quality, porosity and deposition rate of the electroless plating were improved.The deposition rate increases with the increase of power and frequency. The deposition rate is the highest at the ultrasonic frequency of 40 kHz and the power of 150 W, which is 833% higher than that under the water bath condition of 8.2 渭 m / h.The hardness of the coating increases with the increase of ultrasonic power and frequency, the highest is 585 HVV, which is 25% higher than that of 468HV in water bath.In addition, ultrasonic wave can change the P content of the coating and improve the crystallinity of the coating.Conclusion Ultrasonic assisted plating can improve the speed and properties of electroless plating.When the ultrasonic frequency is 40 kHz and the power is 150 W, the overall quality of the coating is the best, the corrosion resistance of the coating is improved, and the coating has the best practicability.
【作者单位】：中国矿业大学徐海学院;中国矿业大学材料科学与工程学院;
【分类号】：TG174.4

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