Development and Application of Wire Rope Nondestructive Testing Instrument

Release time:

2021-06-25

With the continuous development of production demand and scientific and technological progress, the 6. and seventies of the 20th century, the western industrial countries dominated by the United States, introduced a kind of non-destructive testing technology of wire rope using "Hall effect" supplemented by permanent magnet excitation, and the domestic began to follow suit.

Development and Application of Wire Rope Nondestructive Testing Instrument

　　Wire rope nondestructive detectorWith the continuous development of production demand and scientific and technological progress, the western industrial countries dominated by the United States in the 6. and 1970 s of the 20th century introduced a non-destructive testing technology for wire ropes using the "Hall effect" supplemented by permanent magnet excitation, and 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 the "strong magnetic detection technology", this technology can capture weaker magnetic characteristic information, and the detection process is diametrically opposite to the "strong magnetic detection technology", so it calls itself "weak magnetic detection technology". This technology can capture magnetic flux leakage information and magnetic flux information of steel wire rope, enrich the technical method of steel wire rope nondestructive detection instrument, and rewrite the history of only strong magnetic nondestructive detection technology in the field of steel wire rope detection.

Because the wire rope nondestructive detector adopts weak magnetic detection method, uses "Dou's element" high sensitivity sensor and combines the application of digital integrated technology, the instrument can not only accurately and quantitatively detect various internal and external damages 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 use verification,

　　Wire rope flaw detectorIt can detect the damage degree of the wire rope intuitively and clearly, and can evaluate the bearing capacity of the wire rope correctly and objectively, which meets the needs of the safety and quantitative management of the wire rope 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.