电梯曳引钢带钢丝不同截面积损伤的漏磁检测  

Magnetic flux leakage detection of steel wire damages with different cross-sectional areas in elevator traction steel strips

作　　者：杨志军[1] 杨江 杨象岳 刘延雷 曹怀情 孙晗 王学增 YANG Zhijun;YANG Jiang;YANG Xiangyue;LIU Yanlei;CAO Huaiqing;SUN Han;WANG Xuezeng(College of Mechanical Science and Engineering,Northeast Petroleum University,Daqing 163318,China;Hangzhou Special Equipment Inspection and Research Institute,Hangzhou 310051,China;Petro China Daqing Petrochemical Company,Daqing 230600,China)

机构地区：[1]东北石油大学机械科学与工程学院,大庆163318 [2]杭州市特种设备检测研究院,杭州310051 [3]中国石油大庆石化公司,大庆230600

出　　处：《无损检测》2023年第4期22-26,共5页Nondestructive Testing

基　　金：浙江省市场监督管理局科技计划项目(20200119);江苏省市场监督管理局科技计划项目(KJ204126);国家市场监督管理总局科技计划项目(2020MK138)。

摘　　要：电梯曳引钢带长周期运行后,钢带内部钢丝会出现断丝、断股、磨损等类型损伤,这些损伤会严重影响电梯的运行安全,为此,开展了电梯曳引钢带钢丝不同截面积损伤的漏磁检测。通过建立含有不同截面积损伤的电梯曳引钢带有限元模型,得到了不同截面积缺陷的漏磁场空间分布状态和变化规律,然后在实验室条件下对钢带钢丝不同缺陷的漏磁信号进行检测。理论分析和试验结果表明,漏磁检测能有效检测出电梯曳引钢带钢丝的不同截面积损伤,为电梯曳引钢带运行维护提供一定的决策依据。After the elevator traction steel strip runs for a long time,the steel wire inside the steel strip will appear damages with different cross-sectional areas,such as broken wires,broken strands,and abrasion.These damages will seriously affect the safety of elevator operation.For this reason,magnetic flux leakage(MFL)detection of steel wire damages with different cross-sectional areas in elevator traction steel strip is investigated.A finite element model of elevator traction steel strip containing steel wire damages with different cross-sectional areas is established,and the spatial distribution state and variation law of leakage magnetic field at the defects with different cross-sectional areas are obtained.Under laboratory conditions,magnetic flux leakage detection of different steel wires defects in steel strips is carried out.Theoretical prediction and experimental results show that the MFL detection method can effectively detect steel wire damages with different cross-sectional areas of the elevator traction steel strip.This provides a certain decision basis for the operation and maintenance of the elevator traction steel strips.

关 键 词：电梯曳引钢带 漏磁检测 有限元 损伤 漏磁场空间分布 

分 类 号：TG115.28[金属学及工艺—物理冶金]