To inspect and analyze surface morphology,microstructure and mechanical properties of broken wire of elevator wire rope.Results show that abrasion and extrusion is reason of wire breakage on wire rope surface.The main fracture process is as follows:firstly,local steel wire is worn and extruded,resulting in stress concentration and further fatigue frac-ture;When passing through pulley again or many times,the broken part of steel wire is rough,and there is jamming or poor operation,resulting in broken wires and deformation of other rope strands.
关键词
电梯用钢丝绳/磨损挤压/疲劳断裂/显微组织/力学性能
Key words
elevator wire rope/abrasion and extrusion/fatigue fracture/microstructure/mechanical property
维普
万方数据