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来源：百度知道 编辑：UC知道 时间：2024/06/25 08:08:29
基于铝材旋扭工作时极易被腐蚀和磨损，而影响到使用可靠性。为了解决铝材表面既具有防腐蚀性能又耐磨损的技术要求，经分析研究拟定了以铝基体材料，采用化学镀制备的方法，镀覆高磷Ni-P合金，得到防腐蚀性较好、耐磨损能力强的镀层的制备方案。
研究了镀液中镍离子浓度、还原剂浓度、络合剂、稳定剂、温度、PH值等镀液组成及工艺参数对镀速和镀层质量的影响。结果表明：镀液主要成分和工艺条件的变化都对镀速和镀层质量有不同程度的影响。
经过形貌、孔隙率、结合力、腐蚀性、耐磨损等性能测试及分析，结果表明：该工艺得到的Ni-P合金镀层表面光亮，晶粒均匀，孔隙率为0，镀层结合良好，耐酸、碱腐蚀，试件经磨损试验表面仍光亮，耐磨损性能良好

Based on the aluminum Xuanniu work extremely vulnerable to corrosion and wear, and the impact of the use of reliability. In order to address both aluminum surface and anti-corrosion-resistant and wear the technical requirements, the analysis prepared by Al-based materials, the use of chemical plating methods, high-phosphorus coating Ni-P alloy, have a better anti-corrosive, Strong ability to wear-resistant coating of the programme.
On the solution of nickel ion concentration, reducing the concentration of complexing agents, stabilizers, temperature, PH value, such as bath composition and technical parameters of the plating rate and quality of coating. The results showed that: bath major components of the process conditions and changes in the plating rate and the quality of coatings have different degrees of impact.
After morphology, porosity, the combination of corrosion, wear-resistant properties, such as testing and analysis, results showed that: the process by the Ni-