Five Problems of Wire Rope Nondestructive Testing Technology

Release time:

2022-01-14

Until now, wire rope nondestructive testing technology still has five major problems:

Five Problems of Wire Rope Nondestructive Testing Technology

Until now, wire rope nondestructive testing technology still has five major problems:

1. It is impossible to measure the quantitative relationship between the residual load of the wire rope and the damage of the wire rope;

2. Detecting the output of the sensor and the magnetic field information around the wire rope is not a concept. Even accurate magnetic field information does not fully represent accurate damage information. Therefore, it is necessary to quantitatively determine the output of the sensor.

Fixed wire rope damage is a difficult problem faced by NDT;

3. It is still difficult to achieve reliable calibration of LMA signal. LMA calibration is the key link of measuring section loss in wire rope nondestructive testing;

4. The damage simulated in the laboratory in the study cannot fully represent the actual damage in the use site;

5. The quantitative resolution of wire rope nondestructive testing equipment has a great influence on quantitative testing. The quantitative resolution or average length and scanning length of the flaw detection device indicate that the instrument can accurately measure the smaller length of LMA, which is an important parameter to measure the performance of flaw detection equipment.

In short, the traditional strong magnetic testing technology because of its principle, its core technology for many years no substantial breakthrough, far from reaching the stage of mature industrial use, and most of the wire rope nondestructive flaw detector have low detection accuracy, bulkiness and poor adaptability and other major defects, and thus can not achieve satisfactory detection results.