| 45钢渣浆泵主轴早期疲劳断裂分析 |
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| 引用本文： | 孙智,钱永康.45钢渣浆泵主轴早期疲劳断裂分析[J].金属热处理,2000(5):32-34. |
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| 作者姓名： | 孙智 钱永康 |
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| 作者单位： | 1. 中国矿业大学机电工程学院,江苏徐州,221008
2. 山西平遥减速器厂,山西平遥,031100 |
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| 摘 要： | 一台渣浆泵４５钢主轴安装运行不足２４ｈ即发生断裂。本语文分析了主轴断裂的过程和原因。结果表明，轴的断理解为多源旋转变曲疲劳断裂，疲劳裂人轴表面加工形成的类裂纹处扩展，而热处理组织粗大和存在魏氏组织加速了开裂。
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| 关 键 词： | 疲劳断裂 表面缺陷 组织 渣浆泵 45钢 |
Failure Analysis for the Early Fatigue Fracture of Major Axle of Slurry Pump |
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| SUN Zhi,QIAN Yong-kang.Failure Analysis for the Early Fatigue Fracture of Major Axle of Slurry Pump[J].Heat Treatment of Metals,2000(5):32-34. |
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| Authors: | SUN Zhi QIAN Yong-kang |
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| Abstract: | The major axle made of 45 steel fractured after running fewer than 24h.The process and reason of fracture were analysis in the paper.The results show that the fracture of axle results from the rotary bend fatigue fracture.The fatigue cracks extended from the microfractures formed in working process on the surface of axle.Therefore,the coarse pearlite and Wit.microsructure speed up the extension of cracks. |
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| Keywords: | fatigue fracture surface defect microstructure |
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