[1]孙华克,毛志刚,梁思达.doi: 10.3969/j.issn.1001-3849.2026.05.007基于Q235A镀锌低碳钢钝化处理的电镀设备防腐应用[J].电镀与精饰,2026,(05):45-52.
　SUN Huake,MAO Zhigang,LIANG Sida.Anticorrosion application of electroplating equipment based on passivation treatment of Q235A galvanized low-carbon steel[J].Plating & Finishing,2026,(05):45-52.
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doi: 10.3969/j.issn.1001-3849.2026.05.007基于Q235A镀锌低碳钢钝化处理的电镀设备防腐应用()

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG]

卷:
期数:
2026年05
页码:
45-52
栏目:
出版日期:
2026-05-31

文章信息/Info

Title:
Anticorrosion application of electroplating equipment based on passivation treatment of Q235A galvanized low-carbon steel
作者:
孙华克1; 毛志刚1; 梁思达2
(1. 河南省工业学校 机电工程系,河南 郑州 450011 ;2. 濮阳技师学院 电气工程系,河南 濮阳 457000)
Author(s):
SUN Huake 1;  MAO Zhigang 1;  LIANG Sida 2
(1. Department of Mechanical and Electrical Engineering, Henan Industrial School, Zhengzhou 450011; 2. Department of Electrical Engineering, Puyang College of Technicians, Puyang 457000)
关键词:
Q235A低碳钢; 镀锌工艺; 钝化处理; 耐蚀性能
Keywords:
Q235A low-carbon steel;  galvanizing process;  passivation treatment;  corrosion resistance
分类号:
TQ050.9；TG174.4
文献标志码:
A
摘要:
针对Q235A镀锌低碳钢在电镀设备中的防腐需求，进行钝化处理工艺优化及应用性能研究。以Q235A低碳钢板为基材，采用电镀锌工艺制备8～10 μm镀层，经碱性除油、盐酸除锈、硫酸活化前处理后，通过酸性氯化钾镀锌体系获得镀层。采用单因素变量法及正交实验，研究重铬酸钾浓度、钝化温度、时间、pH值对钝化膜性能的影响。最优工艺为：重铬酸钾15 g/L、温度30 ℃、时间7 min、pH=2.0，此时膜层粗糙度为0.24 μm，膜厚2.3 μm，盐雾白锈时间达130 h，结合力无脱落。工艺验证显示，处理后滚筒支架盐雾白锈时间从40 h提升至150 h，现场使用6个月白锈面积小于5%。经济效益分析表明，年综合成本下降了20%。
Abstract:
The passivation treatment process was optimized and its application performance was examined to meet the anti-corrosion needs for Q235A galvanized low-carbon steel in electroplating equipment. An electro-galvanizing procedure was used to prepare an 8~10 μm coating on Q235A low-carbon steel plate. The coating was obtained through an acidic potassium chloride galvanizing technique following pretreatment involving alkaline degreasing, hydrochloric acid rust removal, and sulfuric acid activation treatments. A single-factor variable method and orthogonal experiments were used to examine the effects of potassium dichromate concentration, passivation temperature, time, and pH on the performance of the passivation layer. The optimal process is as follows: potassium dichromate 15 g/L, temperature 30 ℃, time 7 min, pH 2.0. At this time, roughness of the film layer is 0.24 μm, film thickness is 2.3 μm, white salt spray rust resistance reaches 130 h, and there is no peeling of the adhesion. Process validation shows that the salt spray white rust resistance of the treated roller bracket increases from 40 h to 150 h, with less than 5% after 6months of on-site use. According to economic benefit analysis, the annual comprehensive cost is 20% redaction.

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更新日期/Last Update: 2026-05-12