管内壁镀铬层腐蚀原因分析及解决方法  

Analysis and Solution of Corrosion of Chromium Plating on Inner Wall of Tube

作　　者：刘杰 余燕文 李玉军 LIU Jie;YU Yan-wen;LI Yu-jun(Yichang Testing Technique Research Institute,Yichang 443003,Hubei,China)

机构地区：[1]宜昌测试技术研究所,湖北宜昌443003

出　　处：《机械研究与应用》2025年第2期156-158,共3页Mechanical Research & Application

摘　　要：该文对管形零件不同部位内壁镀铬层的腐蚀原因进行了分析并给出了解决方法。通过改进加工工艺,避免了螺孔周围镀铬层崩落造成的腐蚀;通过改进尾部管口帽,解决了因尾部积水造成的大面积腐蚀;通过控制镀铬层厚度以及镀后封闭处理和日常维护保养,改善了其他部位镀铬层的腐蚀。以上解决方法对提高产品使用寿命具有重要意义。The corrosion causes of chromium plating on the inner wall of different parts of tubular parts were analyzed.By improving the processing technology,the corrosion caused by the collapse of chromium coating around the screw hole was avoided;and the large area corrosion caused by the water accumulation at the tail end was solved by improving the design of the nozzle cap.By controlling the thickness of chromium plating layer,sealing treatment after plating and daily maintenance,the corrosion of chromium plating layer in other parts was improved.It is significance for improving the service life of products.

关 键 词：镀铬层 腐蚀 原因分析 解决方法 

分 类 号：TH325[机械工程—机械制造及自动化]