| 汽车起重机钢丝绳的断裂原因 |
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| 引用本文： | 李露水,刘课秀,刘昭杰,马括,王恋,封小亮.汽车起重机钢丝绳的断裂原因[J].物理测试,2006,40(2):42-47. |
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| 作者姓名： | 李露水 刘课秀 刘昭杰 马括 王恋 封小亮 |
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| 作者单位： | 广州特种承压设备检测研究院，广东 广州 510663 |
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| 摘 要： | 某建筑工地的汽车起重机在起吊钢筋材料时，连接副钩的钢丝绳发生了断裂。通过宏观分析、尺寸测量、破断力拉伸试验、金相分析、扫描电镜形貌观察及能谱分析等，对钢丝绳断裂原因进行了分析。分析认为：汽车起重机钢丝绳外层钢丝存在严重磨损、局部存在集中断丝及开裂，局部断丝数量已超出GB/T 5972—2016标准报废基准，导致钢丝绳局部承载能力不足而发生断裂。
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| 关 键 词： | 钢丝绳 磨损 断丝 开裂 |
Fracture cause analysis of wire rope for automobile crane |
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| LI Lushui,LIU Kexiu,LIU Zhaojie,MA Kuo,WANG Lian,FENG Xiaoliang.Fracture cause analysis of wire rope for automobile crane[J].Physics Examination and Testing,2006,40(2):42-47. |
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| Authors: | LI Lushui LIU Kexiu LIU Zhaojie MA Kuo WANG Lian FENG Xiaoliang |
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| Affiliation: | Guangzhou Special Pressure Equipment Inspection and Research Institute, Guangzhou 510663, China |
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| Abstract: | When a automobile crane at a construction site was used for lifting the steel reinforcements, the fracture of wire rope connected to the auxiliary hook occurred. Through macro analysis, dimensional measurement, breaking force tensile test, metallographic analysis, scanning electron microscope morphology observation and energy spectrum analysis, the technical reasons for wire rope fracture were analyzed. The results showed that the outer wire of the automobile crane wire rope had severe wear with local broken wires and cracking. The number of local broken wires had exceeded the scrapping standard in GB/T 5972—2016, resulting in the fracture of wire rope due to insufficient local bearing capacity. |
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| Keywords: | wire rope abrasion broken wire fracture |
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