Development and Application of Wire Rope NDT Technology

Release time:

2022-02-07

Wire rope nondestructive testing technology with the production needs and technological progress and continuous development, the 20th century, 6. and seventies to the United States-based Western industrial countries, introduced a use of the "Hall effect" supplemented by permanent magnet excitation in the form of wire rope nondestructive testing technology, the domestic then began to follow. Because the detection equipment has a powerful magnet, it is described as "strong magnetic detection technology" by the industry ".

Development and Application of Wire Rope NDT Technology

　　NDT for wire ropeTechnology with the production demand and technological progress and continuous development, in the 6. and seventies of the 20th century, the United States-based Western industrial countries, introduced a use of "Hall effect" supplemented by permanent magnet excitation in the form of wire rope nondestructive testing technology, the domestic began to follow suit. Because the detection equipment has a powerful magnet, it is described as "strong magnetic detection technology" by the industry ". The technology to capture close to the appearance of the wire rope magnetic flux leakage information and a small amount of external magnetic flux information, the wire rope internal more abundant and more important magnetic characteristics of information without technical capacity and processing methods, coupled with the product technology content is low, practical performance and poor, limited to laboratory research, this century has been gradually ignored and eliminated by the market.

By the 8. nineties of the 20th century, there was a technology for non-destructive testing of wire ropes with remanence with the help of sensors with high sensitivity. Compared with "strong magnetic detection technology", this technology can capture weaker magnetic characteristic information, and the detection process is diametrically opposite to "strong magnetic detection technology", so it calls itself "weak magnetic detection technology". This technology can capture magnetic leakage information and magnetic flux information of wire ropes, enrich the technical methods of wire rope nondestructive detection, and rewrite the history of only strong magnetic nondestructive detection technology in the field of wire rope detection.

DueWire rope nondestructive detectorThe weak magnetic detection method, the use of "Dou's element" high sensitivity sensor and the application of digital integration technology, so the instrument can not only accurately and quantitatively detect various internal and external damage of the wire rope, correctly evaluate the service life of the wire rope, but also display the test results in a random LCD screen. Through field verification, wire rope NDT can detect the damage degree of wire rope intuitively and clearly, and can correctly and objectively evaluate the bearing capacity of wire rope, which meets the needs of quantitative management of wire rope safety in coal mine. The equipment is light and easy to operate, which is more conducive to the popularization and promotion of use in coal mines.