| 摩托车变档轴断裂原因分析 |
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| 引用本文： | 陈明,谭莹,曹标,莫明珍,周崎,李小敏.摩托车变档轴断裂原因分析[J].小型内燃机与摩托车,2007,36(5):94-96. |
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| 作者姓名： | 陈明 谭莹 曹标 莫明珍 周崎 李小敏 |
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| 作者单位： | 广东出入境检验检疫局技术中心,广州,510623 |
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| 摘 要： | 对断裂的摩托车变档轴进行宏观、金相、化学及断口分析。结果表明变档轴由于调质处理不当致使基体中分布块状及网状分布的铁素体,导致变档轴的韧性及强度下降,在过载扭力的作用下发生扭转断裂。
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| 关 键 词： | 变档轴 扭转断裂 调质处理 失效分析 |
| 文章编号： | 1671-0630（2007）05-0094-03 |
| 修稿时间： | 2007-08-02 |
Analysis on Fracture of Gear- shift Shaft of Motorcycles |
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| Chen Ming,Tan Ying,Cao Biao,Mo Mingzhen,Zhou Qi,Li Xiaomin.Analysis on Fracture of Gear- shift Shaft of Motorcycles[J].Small Internal Combustion Engine and Motorcycle,2007,36(5):94-96. |
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| Authors: | Chen Ming Tan Ying Cao Biao Mo Mingzhen Zhou Qi Li Xiaomin |
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| Abstract: | Analysis on macro,metallography,chemistry and fracture appearance were carried out on broken gear-shift shaft in motorbike.The results show that blocks and network of ferrite existed in the base of gear-shift shaft due to improper quenching-and-tempering.It reduces the toughness and intensity of the shaft,that leaded to the torsion fracture of gear-shift shaft under over-torsion stress. |
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| Keywords: | Gear-shift shaft Torsion fracture Quenching-and-tempering Failure analysis |
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