Damage Classification of Wire Rope

Release time:

2022-07-12

At present, the wire rope nondestructive flaw detector based on magnetic inspection method has been recognized as a very reliable wire rope testing instrument.

Damage Classification of Wire Rope

Wire rope has many characteristics such as high strength, good elasticity, stable and reliable work, strong ability to withstand dynamic load and overload, and is widely used in coal, metallurgy, transportation, tourism and other industries. In the process of use, the wire rope will have different degrees of damage. Generally, the damage of wire rope can be divided into the following two categories:
(1) Local defect type, referred to as lf type. Damage caused locally on the wire rope mainly includes various kinds of broken wire damage, rust spots, local abnormal shape, etc;
(2) section loss type, referred to as lma type. The damage that reduces the sum of the metal cross-sectional area on the cross-section of the wire rope mainly includes wear, large area corrosion, tensile deformation, etc.
In order to ensure the safety of the wire rope, it is necessary to use the wire rope non-destructive flaw detector to carry out non-destructive flaw detection on the state of the wire rope. In the detection process of using NDT, the changes of steel wire rope defect signal caused by lf type defect and lma type defect of steel wire rope are inconsistent, and the standard for judging whether the steel wire rope is scrapped is also slightly different. Therefore, the detection of steel wire rope must first judge the damage type, and then quantitatively analyze the steel wire rope defect. At present, based on the magnetic inspection method.Wire rope nondestructive flaw detectorHas been recognized as a very reliable wire rope testing instrument.