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铜及铜合金耐蚀无铬钝化工艺和封闭剂

InventionUnknown
10Claims · 2 independent
§ Ⅰ

Dossier Overview

Inventor

赵跃; 张春明; 林文; 蒋羽; 张顺军

Filing Date

Jul 23, 2026

Publication Date

Oct 20, 2026

IPC Classification

C23C 22/78 (2006.01)C23C 22/52 (2006.01)C23C 22/83 (2006.01)C23F 3/06 (2006.01)C25F 1/04 (2006.01)C23G 1/10 (2006.01)C23G 1/06 (2006.01)C09D 133/00 (2006.01)C09D 7/61 (2018.01)C09D 171/02 (2006.01)C09D 7/63 (2018.01)

本发明公开了一种铜及铜合金耐蚀无铬钝化工艺,属于金属表面处理技术领域。本发明为适配多类铜材、提高钝化性能,降低成本,提供了一种铜及铜合金耐蚀无铬钝化工艺,包括超声波脱脂→水洗→酸洗→水洗→阳极/阴极电解脱脂→水洗→酸活化→水洗→抛光→水洗→超声波清洗→水洗→钝化→浸泡/喷涂封闭剂→烘干;采用过硫酸盐化学抛光体系,巯基杂芳环衍生物配合聚乙二醇钝化,以及疏水型与纳米增强型双封闭路线,构成化学转化+物理封闭双重防护,使产品耐盐雾达96h,200℃/30min不变色,1:1硝酸点滴≥8s,实现了分铜种定制抛光、免水洗钝化,灵活性更强,减少污水排放与工序耗时。

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