热镀锌用轴套轴瓦失效分析
Failure Analysis of the Sleeves and Bushings in Hot-dip Galvanizing
摘 要
针对连续热镀锌生产线系统容易出现摆动过大导致停工更换的现象,采用光学显微镜、扫描电镜、X射线衍射仪等设备对热镀锌用稳定辊轴套和轴瓦进行了失效分析,探讨并查明了轴套和轴瓦失效的原因.结果表明,轴套的腐蚀磨损过程包括锌液对粘结相的腐蚀、表面疲劳磨损、粘着磨损和磨料磨损,最终使轴套尺寸变小而失效.而轴瓦的失效形式为锌液的裂纹腐蚀、粘着磨损和颗粒的脱落.
轴套
轴瓦
耐腐蚀磨损性
失效分析
hot-dip galvanizing
sleeve
bushing
corrosion wear resistance
failure analysis
Abstract
A serious problem was noticed in continuous hot-dip galvanizing,that is,the system was prone to move violently and the routine maintenance shutdowns were frequently required.Failure analysis of the sleeves and the bushings was done by using optical microscopy,SEM,X-ray diffraction analyzer.The failure reasons were discussed.The results indicated that the corrosion wear process of the sleeve included the corrosion of binding phase,surface fatigue wear,adhesive wear and abrasive wear,which made the sleeve dimensions decrease and the galvanizing system fail in the end.The failure modes of the bushing were the crack corrosion induced by molten zinc,adhesive wear and peeling-off of particles.
中图分类号 TG174.1
所属栏目 镀层专题
基金项目
收稿日期 2014/6/18
修改稿日期
网络出版日期
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备注索进平(1966-),教授,博士,从事新型金属及其复合材料研究.
引用该论文: FANG Xuan-wei,LIU Da-wei,OUYANG Tao-yuan,SUO Jin-ping,YANG Peng,PENG Wei,WANG Yi. Failure Analysis of the Sleeves and Bushings in Hot-dip Galvanizing[J]. Corrosion & Protection, 2015, 36(5): 423
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参考文献
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【5】李家茂.添加Y2O3的ZrO2增韧Al2O3陶瓷抗钢液腐蚀性能的研究[J].金属材料与冶金工程,2007,35(4):7-9,31.
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【9】曹晓明,马瑞娜,王岩,等.钴基合金在液锌中的腐蚀磨损性能[J].天津大学学报,2008,41(12):1485-1491.
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