WANG Dianxi*,WEI Yaping,LV Peng,et al.Application of Nitric Acid Free Environmental Protection Pretreatment Process in Cast Aluminum Electroplating[J].Plating & Finishing,2021,(1):36-40.[doi:10.3969/j.issn.1001-3849.2021.01.0070]
无硝酸环保前处理工艺在铸铝电镀上的应用
- Title:
- Application of Nitric Acid Free Environmental Protection Pretreatment Process in Cast Aluminum Electroplating
- 文献标志码:
- A
- 摘要:
- 铸铝件的含硅量高，电镀传统前处理多采用HNO3-HF体系工艺进行除垢活化，采用HNO3工艺进行退锌，在处理过程会产生大量“黄烟”和硝酸酸雾，造成严重环境污染。本文重点讨论了无硝酸环保前处理工艺在铸铝合金零件电镀中的应用，该工艺在前处理和退镀过程中可以彻底解决“黄烟”和硝酸酸雾的污染危害问题，保护环境的同时可降低废水处理成本，获得较高的环境效益和经济效益。
- Abstract:
- Cast aluminum parts have high silicon content. The traditional pretreatment of electroplating mostly adopts HNO3-HF system process for descaling and activation, and HNO3 process is used for zinc removal. In the treatment process, a lot of ‘yellow smoke’ and nitric acid mist will be produced, causing serious environmental pollution. In this paper, the application of environmental protection pretreatment process without nitric acid in the electroplating of cast aluminum alloy parts was mainly discussed. This process can completely solve the problem of pollution caused by ‘yellow smoke’ and nitric acid mist in the pretreatment and stripping process, protect the environment, reduce the cost of wastewater treatment, and obtain higher environmental and economic benefits.
参考文献/References:
[1] 朱祖芳. 铝合金阳极氧化与表面处理技术（第二版）[M]. 北京: 化学工业出版社, 2010: 339-351.
[2] 周芝凯, 宋丹, 王国威, 等. 铝合金阳极氧化的研究进展[J]. 热加工工艺, 2020（18）: 8-11.
Zhou Z K, Song D, Wang G W, et al. Research development of anodizing of aluminum alloys[J]. Hot Working Technology, 2020（18）: 8-11 （in Chinese）.
[3] 吴吉霞, 邢汶平, 程新鸣. 铝合金3种前处理方式的电泳漆膜耐腐蚀性能探讨[J]. 材料保护, 2019（3）: 95-98.
Wu J X, Xing W P, Cheng X M. Influences of three pretreatment methods on corrosion resistance of electrophoresis coating on aluminum alloys[J]. Journal of Materials Protection, 2019（3）: 95-98 （in Chinese）.
[4] 秦永金. 铝合金薄壁筒类零件镀铬及磨削工艺方法研究[J]. 现代制造技术与装备, 2018（11）: 104-105.
Qin Y J. Study on chromium plating and grinding process for aluminum alloy thin-walled cylinder parts[J]. Modern Manufacturing Technology and Equipment, 2018（11）: 104-105 （in Chinese）.
[5] 张允诚, 胡如南, 向荣. 电镀手册（第三版）[M]. 北京: 国防工业出版社, 2007: 439-445.
[6] AM205铝及铝合金除油粉产品说明书[Z]. 上海: 上海镀研化工科技有限公司, 2014.
[7] P66铝及铝合金微蚀盐和AM205铝及铝合金除油粉产品说明书[Z]. 上海: 上海镀研化工科技有限公司, 2014.
备注/Memo
收稿日期：2020-11-20；修回日期：2020-12-20通信作者：王殿西，email:13853200258@139.com