Wire rope nondestructive testing services still have 5 major challenges

Release time:

2021-06-18

Until the 21st century, wire rope nondestructive testing services still exist 5 major problems:

Wire rope nondestructive testing services still have 5 major challenges

Until the 21st century,Non-destructive testing of steel wire ropeThe service still has 5 major challenges:

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, so to quantitatively determine the wire rope damage from the output of the sensor is a difficult problem faced by the wire rope nondestructive testing service;

3. It is still difficult to achieve reliable calibration of LMA signal. LMA calibration is the key link to measure cross-section loss;

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 services 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 strong magnetic testing instruments have low detection accuracy, bulkiness and poor adaptability and other major defects, and thus can not achieve satisfactory wire rope nondestructive testing results.