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[目的]为解决铝合金微波壳体化学镀镍层结合力差、耐蚀性不足及槽液稳定性低的问题，亟需开发一种适用于批量生产的高磷化学镀镍工艺。[方法]以5A06铝合金为基材，提出先浸锌+碱性化学镀镍，再高磷化学镀镍，最后采用自研ZY-30封闭剂进行封闭处理的工艺。说明了主要工艺流程和关键控制点。对化学镀工艺及封闭工艺进行改进。[结果]所得Ni镀层的P质量分数约12%，呈半光亮银灰色，结合力良好，经ZY-30封闭后可通过96 h中性盐雾试验，且不影响后续涂装漆膜的结合力。化学镀镍槽液连续使用5个周期未分解，产品合格率大于98%。[结论]该工艺稳定可靠，兼具良好的镀层性能和槽液稳定性，已成功应用于实际生产
Abstract：[Objective] To address the issues of poor adhesion, insufficient corrosion resistance, and low bath stability of electroless nickel plating on aluminum alloy microwave enclosure, it is urgent to develop a high-phosphorus electroless nickel plating process suitable for mass production. [Method] Using 5A06 aluminum alloy as the substrate, a process was proposed involving zinc immersion followed by alkaline electroless nickel plating, then high-phosphorus electroless nickel plating, and finally sealing treatment with the home-developed ZY-30 sealing agent. The main process flow and key control points were described, and improvements were made to both the electroless plating and sealing processes. [Result] The obtained nickel coating had a phosphorus mass fraction of approximately 12%, exhibited a semi-bright silver-gray appearance, and demonstrated good adhesion. After sealing with ZY-30, the coating passed a 96-hour neutral salt spray(NSS) test without affecting the adhesion of subsequently applied paint films. The electroless nickel plating bath remained stable and did not decompose after five consecutive production cycles, with a product qualification rate exceeding 98%. [Conclusion] This process is stable and reliable, offering both excellent coating performance and bath stability, and has been successfully applied in actual production.
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基本信息:
DOI：10.19289/j.1004-227x.2026.04.004
中图分类号:TG174.4
引用信息:
[1]潘亮,代永,夏洪亮,等.铝合金微波壳体高磷化学镀镍工艺[J].电镀与涂饰,2026,45(04):25-30.DOI:10.19289/j.1004-227x.2026.04.004.
2025-04-06
2025
2026-04-28
2026
2
2026-01-29
2026-01-29
2026-01-29