How often is the wire rope inspected?

Which steel wire ropes need regular nondestructive testing? The steel wire rope will be rusted, broken and worn after long-term use, which will reduce the strength of the steel wire rope; If it is not replaced in time, a short rope accident will occur.

The inspection of steel wire rope is divided into independent inspection and regular inspection. Self inspection: workers conduct self inspection on the steel wire rope they use before and after using the steel wire rope to lift the goods every day. Regular inspection refers to the company looking for a third-party testing unit to conduct formal and comprehensive inspection and issue a testing report. For example: Elevator steel wire rope, crane steel wire rope, rigging steel wire rope, mine hoist, coal mine steel wire rope, etc. all need to be tested regularly.

How often is the steel wire rope inspected?

The inspection cycle of steel wire rope is generally one year, half a year or three months. After hanging the rope normally, conduct NDT on the steel wire rope regularly, and then record the abnormalities of the steel wire rope in time. Provide guiding opinions for the later oiling maintenance of the steel wire rope according to the test results of the steel wire rope. At the same time, if the service life of the steel wire rope is to be estimated, it needs to be tested once a month, and multiple tests and multi data collection, Then comprehensively judge the service life of the steel wire rope.

Attention should be paid to the following problems of steel wire rope, which should be tested and evaluated as soon as possible:

1. The broken wire between one twist of steel wire rope exceeds 10%;

2. The diameter is reduced by more than 7% of the specified production;

3. Twisted wire rope;

4. Significantly deformed or corroded wire rope.

Nondestructive testing method for steel wire rope

There are many kinds of nondestructive testing methods for steel wire rope, including ultrasonic testing method, radiographic testing method, eddy current method, current method, vibration method, acoustic testing method, etc. at present, the main popular testing method in the market is electromagnetic testing, that is, the testing method based on the principle of strong magnetic flux leakage, This can accurately judge the wire breakage and wear of the steel wire rope.