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[1]张卫民,王天钦,牛继高,等.doi: 10.3969/j.issn.1001-3849.2025.04.001汽车减震器杆高速硬铬电镀效果分析[J].电镀与精饰,2025,(04):1-6.
　Zhang Weimin*,Wang Tianqin,Niu Jigao,et al.Analysis of high speed hard chromium electroplating effect on automotive shock absorber rod[J].Plating & Finishing,2025,(04):1-6.

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doi: 10.3969/j.issn.1001-3849.2025.04.001汽车减震器杆高速硬铬电镀效果分析

《电镀与精饰》[ISSN:1001-3849/CN:12-1096/TG] 卷: 期数: 2025年04 页码: 1-6 栏目: 出版日期: 2025-04-30

Title:: Analysis of high speed hard chromium electroplating effect on automotive shock absorber rod

作者:: 张卫民; 王天钦; 牛继高; 杨勇; (1. 河南地矿职业学院智能制造学院,河南郑州 451464 ;2. 濮阳技师学院汽车工程系,河南濮阳 457001 ;3. 中原工学院机电学院,河南郑州 450007 ;4. 中原工学院后勤服务中心,河南郑州 450007)

Author(s):: Zhang Weimin1*; Wang Tianqin2; Niu Jigao3; Yang Yong4; (1. School of Intelligent Manufacturing, Henan Geology Mineral College, Zhengzhou 451464, China; 2. Department of Automotive Engineering, Puyang College of Technicians, Puyang 457001, China; 3. School of Mechatronics Engineering, Zhongyuan University of Technology, Zhengzhou 450007, China; 4. Logistics Service Center, Zhongyuan University of Technology, Zhengzhou 450007, China)

关键词:: 高速硬铬电镀技术; 减震器杆; 镀液制备; 阳极活化; 除氢处理; 耐磨损性

Keywords:: high speed hard chromium electroplating technology; shock absorber rod; preparation of plating solution; anodic activation; dehydrogenation treatment; wear resistance

分类号:: TQ153

文献标志码:: A

摘要:: 汽车减震器杆是悬架减振器的核心零件之一，它连接着减震器的上下两个腔室，在车辆行驶过程中起到支撑和缓冲的作用。汽车减震器杆在恶劣的工况下工作时，容易受到腐蚀的影响，导致活塞杆的强度、挠度和疲劳失效等问题。为了提高整车的可靠性和安全性，对汽车减震器杆高速硬铬电镀效果展开了研究。经过预热、阳极活化、冲击电镀和正常电镀等工序，对除油后的试件进行高速硬铬电镀。然后将试件放置在烘箱内，设定时间与温度分别为190 ℃和12 h，完成试件除氢。利用相应设备测试试件的镀层厚度、维氏硬度与耐磨损性等。结果表明：采用B组参数进行高速硬铬电镀，得到的镀层厚度达到22.8 μm，显微硬度高达920 HV，且磨损失重较小(3.5±0.2) mg，表明该镀层具有较好的物理屏障和抵抗腐蚀介质渗透的能力。随着电镀时间的增加，镀层厚度也随之提升，镀层的沉积速率保持在1.5 μm/min左右；除氢前后的试件镀层的维氏硬度分别为730 HV01和800 HV01；试件镀层的摩擦系数在摩擦磨损17 min后达到0.35左右，并在到达20 mim后维持稳定状态。通过测试结果验证所制备的试件具有较高的耐磨性。

Abstract:: The car shock absorber rod is one of the core components of the suspension shock absorber, which connects the upper and lower chambers of the shock absorber and plays a supporting and buffering role during vehicle driving. When the shock absorber rod of a car works under harsh working conditions, it is easily affected by corrosion, leading to problems such as strength, deflection, and fatigue failure of the piston rod. In order to improve the reliability and safety of the entire vehicle, research has been conducted on the high-speed hard chrome plating effect of automotive shock absorber rods. High-speed hard chromium electroplating was performed on the degreased specimens through preheating, anodic activation, impact electroplating, and normal electroplating processes. After electroplating, place the test piece in an oven and set the time and temperature to 190 ℃ and 12 h respectively to complete the dehydrogenation of the test piece. Use corresponding equipment to test the coating thickness, Vickers hardness, and wear resistance of the test specimens. The results showed that high-speed hard chromium electroplating with group B parameters obtained a coating having a thickness of 22.8 μm, a microhardness of up to 920 HV, and a small wear loss (3.5±0.2) mg, indicating that the coating has good physical barriers and the ability to resist the penetration of corrosive media. The increase of electroplating time, the thickness of the coating also increased, and the deposition rate of the coating remained at around 1.5 μm/min; The Vickers hardness of the coating on the specimen before and after hydrogen removal were 730 HV01 and 800 HV 01, respectively; The friction coefficient of the coating on the test piece reached around 0.35 after 17 minutes of friction and wear, and remained stable after 20 minutes. Verify through test results that the prepared specimens have high wear resistance

更新日期/Last Update: 2025-04-16