SHEN Jinghong,WAN Maosong*.Influence of Chromium-Free Sealing Treatment on Corrosion Resistance of Zinc Phosphating Film on Cold-Rolled Automotive Sheet[J].Plating & Finishing,2020,(9):6-10.
无铬封闭对冷轧汽车板锌系磷化膜耐蚀性能的影响
- Title:
- Influence of Chromium-Free Sealing Treatment on Corrosion Resistance of Zinc Phosphating Film on Cold-Rolled Automotive Sheet
- 文献标志码:
- A
- 摘要:
- 为了提高冷轧汽车板锌系磷化膜的耐腐蚀性能，使用硅酸钠溶液对磷化膜进行封闭处理。以硅酸钠浓度、溶液温度和封闭时间作为影响因素，以变色时间作为评判磷化膜耐腐蚀性能的指标，通过正交试验设计与分析得到最佳封闭工艺条件为：硅酸钠浓度10 g/L、溶液温度80 ℃、封闭时间16 min。在最佳封闭工艺条件下封闭后磷化膜的致密度较高，主要成分为Zn、P、O、Na和Si元素，其耐腐蚀性能明显优于封闭前磷化膜。硅酸钠填充了晶粒间的缝隙，使磷化膜的致密度提高，阻挡了腐蚀介质向磷化膜内部渗透，从而提高磷化膜的耐腐蚀性能。
- Abstract:
- In order to improve the corrosion resistance of zinc phosphating film on cold-rolled automotive sheet, the phosphating film was sealed with sodium silicate solution. The corrosion resistance of phosphating film was evaluated using the concentration of sodium silicate, solution temperature and sealing time as the influencing factors and the color-changing time as the index. The optimal sealing process conditions obtained through orthogonal test design and analysis were as follows: concentration of sodium silicate 10 g/L, solution temperature 80 ℃, sealing time 16 min. The phosphating film sealed under the optimal sealing process conditions has a compact structure, and is mainly composed of Zn, P, O, Na and Si elements. The corrosion resistance of the phosphating film after sealed is obviously better than that of the phosphating film before sealed. The density of phosphating film is improved because of sodium silicate filled the gap between the grains, which prevents the corrosive medium from permeating into phosphating film, so as to improve the corrosion resistance of phosphating film.
参考文献/References:
[1] 蓝荣福. 车身磷化膜异常原因分析及措施探讨[J]. 涂料工业, 2019, 49(8): 69-74.
Lan R F. Analysis and discussion on causes and countermeasures for abnormal phosphating film of car body[J]. Paint & Coatings Industry, 2019, 49(8): 69-74 (in Chinese).
[2] Lin B L, Lu J T, Kong G. Synergistic corrosion protection for galvanized steel by phosphating and sodium silicate post-sealing[J]. Surface and Coatings Technology, 2008, 202(9): 1831-1838.
[3] 邵红红, 陈婷婷, 祁昌洋, 等. 封闭处理对316L不锈钢超声场下磷化膜性能的影响[J]. 中国表面工程, 2017, 30(1): 63-69.
Shao H H, Chen T T, Qi C Y, et al. Effects of sealing treatment on properties of phosphating film on 316L stainless steel under ultrasonic field[J]. China Surface Engineering, 2017, 30(1): 63-69 (in Chinese).
[4] 安成强, 刘新院, 陈梨, 等. 锌锰系磷化膜硅酸钠封闭工艺研究[J]. 表面技术, 2012, 41(3): 84-86.
An C Q, Liu X Y, Chen L, et al. The study on process of sodium silicate sealing for zinc-manganese phosphate coating[J]. Surface Technology, 2012, 41(3): 84-86 (in Chinese).
[5] 林碧兰, 卢锦堂, 孔纲, 等. 硅酸钠封闭后处理对磷化热镀锌钢耐蚀性的影响[J]. 腐蚀科学与防护技术, 2008, 20(2): 114-117.
Lin B L, Lu J T, Kong G, et al. Effect of sodium silicate post-sealing on corrosion resistance of phosphated hot-dip galvanized steel[J]. Corrosion Science and Protection Technology, 2008, 20(2): 114-117 (in Chinese).
[6] 张云霞, 李亚娟. 热水和硅酸钠封孔法对镁合金磷化膜耐蚀性的影响[J]. 电镀与环保, 2014, 34(2): 37-39.
Zhang Y X, Li Y J. Effects of hot water and Na2SiO3 sealing on corrosion resistance of phosphate film for magnesium alloy[J]. Electroplating & Pollution Control, 2014, 34(2): 37-39 (in Chinese).
[7] Machuca L, Bailey S I, Gubner R. Crevice corrosion studies on corrosion resistant alloys in stagnant natural seawater[J]. Advanced Materials Research, 2012(610-613): 276-279.
[8] 胡亚楠, 向嵩, 王权顶, 等. 食品级磷酸浓度对国产904L不锈钢耐蚀性的影响[J]. 腐蚀与防护, 2014, 35(3): 244-247.
Hu Y N, Xiang S, Wang D Q, et al. Effect of food grade phosphoric acid concentration on corrosion resistance of domestic 904L stainless steel[J]. Corrosion & Protection, 2014, 35(3): 244-247 (in Chinese).
[9] Samide A, Tutunaru B, Ionescu C, et al. Electrochemical study of haematoxylin inhibitory activity to control carbon steel corrosion in natrium nitrate solution[J]. International Journal of Electrochemical Science, 2013(8): 3589-3601.
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