[1]张思婉*,张建国,张聪正.特种设备用Q390E钢防腐蚀处理研究[J].电镀与精饰,2021,(6):1-5.[doi:10.3969/j.issn.1001-3849.2021.06.001]
　ZHANG Siwan*,ZHANG Jianguo,ZHANG Congzheng.Anti-corrosion Treatment of Q390E Steel for Special Equipment[J].Plating & Finishing,2021,(6):1-5.[doi:10.3969/j.issn.1001-3849.2021.06.001]
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特种设备用Q390E钢防腐蚀处理研究()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2021年6
页码:
1-5
栏目:
出版日期:
2021-06-08

文章信息/Info

Title:
Anti-corrosion Treatment of Q390E Steel for Special Equipment
作者:
张思婉1*; 张建国1; 张聪正2
1.郑州铁路职业技术学院，河南 郑州 450002； 2.南阳师范学院，河南 南阳 473000
Author(s):
ZHANG Siwan1*;  ZHANG Jianguo1;  ZHANG Congzheng2
1. Zhengzhou Railway Vocational Technical College， Zhengzhou 450002， China；　2. Nanyang Normal University， Nanyang 473000， China
关键词:
防腐蚀; 特种设备; Q390E钢; 腐蚀形貌; 锰系磷化处理
Keywords:
anti-corrosion special equipment Q390E steel corrosion morphology manganese phosphating treatment
DOI:
10.3969/j.issn.1001-3849.2021.06.001
文献标志码:
A
摘要:
采用锰系磷化工艺对特种设备用Q390E钢进行防腐蚀处理，将不同浓度的PTFE乳液分别加入磷化液中，在Q390E钢表面制备了锰系磷化膜和三种锰系复合磷化膜。测试了锰系磷化膜和三种锰系复合磷化膜的电化学阻抗谱，并表征了锰系磷化膜和三种锰系复合磷化膜盐雾试验前后的表面形貌。结果表明：与Q390E钢相比，锰系磷化膜和三种锰系复合磷化膜的电荷转移电阻和溶液电阻都不同程度增大，对电荷转移及腐蚀介质扩散具有较强的阻碍。锰系磷化膜和三种锰系复合磷化膜盐雾试验前后的表面形貌未发生显著变化，都能较好地保护Q390E钢，起到防腐蚀作用。磷化液中PTFE乳液浓度对锰系复合磷化膜的耐蚀性能有较大影响，PTFE乳液浓度为20 mL/L时制备的锰系复合磷化膜对Q390E钢能起到更好的防腐蚀作用，而PTFE乳液浓度太低或过高时制备的锰系复合磷化膜对Q390E钢的防腐蚀作用不太理想。
Abstract:
Manganese phosphating process was used for the anti-corrosion treatment of Q390E steel for special equipment. PTFE emulsion with different concentration was added to the phosphating solution respectively, and manganese phosphating film and three manganese composite phosphating films were prepared on the surface of Q390E steels. The electrochemical impedance spectra of manganese phosphating film and three manganese composite phosphating films were measured and the surface morphology before and after salt spray test were characterized. The results showed that compared with Q390E steel, the charge transfer resistance and solution resistance of manganese phosphating film and three manganese composite phosphating films were increased, which had strong obstacles to the charge transfer and diffusion of corrosive media. The surface morphology of manganese phosphating film and three manganese composite phosphating films did not change significantly before and after salt spray test, indicating that both of them could play an role in the anti-corrosion of Q390E steel. The concentration of PTFE emulsion in the phosphating solution had a great influence on the corrosion resistance of manganese composite phosphating film. When the concentration of PTFE emulsion was 20 mL/L, the manganese composite phosphating film can play a better anti-corrosion effect for Q390E steel. However, when the concentration of PTFE emulsion was too low or too high, the anti-corrosion effect of manganese composite phosphating film for Q390E steel was not ideal.

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备注/Memo

备注/Memo:
收稿日期： 2020-10-24；修回日期： 2020-12-03
作者简介： 张思婉（1983—）， 硕士， 讲师， email： annable_990@163.com
基金项目： 河南省科技厅重点研发与推广专项（192102210162）
更新日期/Last Update: 2021-06-10