ZHANG Chunli*,WU Fei.张春丽1*,吴 飞2[J].Plating & Finishing,2021,(2):16-21.[doi:10.3969/j.issn.1001-3849.2021.02.0040]
促进剂对电气柜用冷轧板常温锌-锰系磷化膜耐蚀性的影响
- Title:
- 张春丽1*,吴 飞2
- 文献标志码:
- A
- 摘要:
- 通过添加亚硝酸钠或硝酸镥作为单一促进剂或两者复配制备复合促进剂对常温锌-锰系磷化液加以改进,并使用改进的磷化液在不同温度下进行实验。比较了使用单一或复合促进剂获得的磷化膜的形貌质量和耐蚀性,同时研究了温度对使用复合促进剂获得的磷化膜的形貌质量和耐蚀性的影响。结果表明:使用复合促进剂(亚硝酸钠1.5 g/L+硝酸镥0.04 g/L)获得的磷化膜耐蚀性明显好于使用亚硝酸钠(1.5 g/L)或硝酸镥(0.04 g/L)作为促进剂获得的磷化膜,其主要原因是复合促进剂能更好地促进磷化成膜,获得了比较致密、平整度较好的磷化膜。温度对使用复合促进剂获得的磷化膜的形貌质量和耐蚀性有较大影响,随着温度从15 ℃升高到30 ℃,磷化膜的致密度明显改善,表面粗糙度从0.36 μm下降到0.28 μm,其耐蚀性逐步提高。采用改进的常温锌-锰系磷化液在合适温度下可以获得耐蚀性较好的常温磷化膜,该磷化膜可以作为电气柜用冷轧板的涂装底层。
- Abstract:
- Normal-temperature zinc-manganese phosphating solution was improved by adding sodium nitrite or lutetium nitrate as a single promoter or a compound promoter, and the experiments were carried out with the improved phosphating solution at different temperature. The morphology quality and corrosion resistance of phosphating films obtained with a single or compound promoter were compared, and the effect of temperature on the morphology quality and corrosion resistance of phosphating films obtained with a compound promoter was also studied. The results showed that the corrosion resistance of the phosphating film obtained with a compound promoter (sodium nitrite 1.5 g/L + lutetium nitrate 0.04 g/L) was significantly better than that of the phosphating film obtained with sodium nitrite (1.5 g/L) or lutetium nitrate (0.04 g/L) as promoter. This was mainly due to the fact that the compound promoter can better promote the formation of phosphating film, thus obtaining a relatively dense and smooth phosphating film. Temperature had a great influence on the morphology quality and corrosion resistance of the phosphating film obtained with a compound promoter. With the rise of temperature from 15 ℃ to 30 ℃, the surface roughness of phosphating film decreased from 0.36 μm to 0.28 μm, and the corrosion resistance was improved gradually. A phosphating film with good corrosion resistance can be obtained using the improved normal-temperature zinc-manganese phosphating solution at appropriate temperature, and it can be used as the bottom coating of cold-rolled sheet for electric cabinet.
参考文献/References:
[1] 高凤梅, 宋新民. 浅析常温磷化剂在冷轧钢薄板涂装前处理工艺中的应用[J]. 现代涂料与涂装, 2013, (9): 46-48.
Gao F M, Song X M. Brief discussion on application of ambient temperature phosphatizing agent in pretreatment process of cold-rolled steel sheet coating[J]. Modern Paint and Finishing, 2013, (9): 46-48 (in Chinese).
[2] 杨晓冬, 都姗姗. 常温磷化新工艺[J]. 工程技术建筑, 2016, (5): 174.
Yang X D, Du S S. New phosphating process at room temperature[J]. Engineering Technology·Architecture, 2016, (5): 174 (in Chinese).
[3] Zarei H, Rad R H. Effect of phosphate conversion coating containing cobalt ion on the corrosion resistance of 6061 aluminum alloy[J]. Materials Science: An Indian Journal, 2018, 16(1): 1-13.
[4] 张柳丽, 李宝增, 张颖杰, 等. 高耐蚀性常温磷化工艺研究[J]. 电镀与精饰, 2015, 37(3): 32-35.
Zhang L L, Li B Z, Zhang Y J, et al. Study on high corrosion resistance phosphating technology at ambient temperature[J]. Plating & Finishing, 2015, 37(3): 32-35 (in Chinese).
[5] Su H Y, Lin C S. Effect of additives on the properties of phosphate conversion coating on electrogalvanized steel sheet[J]. Corrosion Science, 2014, (83): 137-146.
[6] 郭国才, 莫振宇, 吴清源, 等. 稀土铈对中温锌系磷化 的影响[J]. 电镀与环保,2018,38(4): 37-41.
Guo G C,Mo Z Y,Wu Q Y,et al. Effect of rare earth element cerium on zinc phosphating process at middle temperature[J]. Electroplating & Pollution Control, 2018, 38(4): 37-41 (in Chinese).
[7] Tacon S L, Brodier A, Chicanne C, et al. Rare-earth thin-film deposition and oxidation study[J]. Fusion Science and Technology, 2016, 70(2): 351-357.
[8] 齐雯涵, 刘军, 邓永刚, 等. 混凝土结构中Q235钢表面磷酸锌涂层的制备和腐蚀研究[J]. 沈阳理工大学学报, 2019, 38(3): 1-6.
Qi W H, Liu J, Deng Y G, et al. Preparation of zinc phosphate conversion coatings on Q235 steel for concrete and their corrosion response[J]. Journal of Shenyang Ligong University, 2019, 38(3): 1-6 (in Chinese).
[9] 沈艳芝. 表面粗糙度的多参数高精度测量[J]. 实验室科学, 2007, (2): 71-73.
Shen Y Z. High degree of accuracy measurement for surface roughness with multi-parameter[J]. Laboratory Science, 2007, (2): 71-73 (in Chinese).
[10] Chen Y, Dou J H, Pang Z F, et al. Improving the corrosion resistance of micro-arc oxidation coated Mg-Zn-Ca alloy[J]. RSC Advances, 2020, (43): 8244-8254.
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备注/Memo
收稿日期: 2020-07-07;修回日期: 2020-09-05
作者简介: 张春丽(1974—),女,讲师。email: zhang_edu191@126.com
基金项目: 中央高校基本科研业务费专项资金资助(191004005)