What parts of wire rope must be checked before use?

The newly purchased steel wire rope or spare rope needs to be tested for fracture, bending and twisting of each steel wire before use. The laboratory test of newly purchased wire rope is mainly to check whether the physical and mechanical properties of the new wire rope meet the requirements of use; Then calculate the safety factor according to the test results to see if the specified safety factor can be achieved. The steel wire rope in service is mainly subjected to tensile force, bending force and torsion force, especially the first two forces, which is of great significance to judge whether the steel wire rope meets the needs. The specified safety factor of wire rope is equal to the ratio of the sum of the measured tension of qualified wire rope to its maximum static tension (including the static tension caused by the load at the end of the rope and the dead weight of the wire rope). The safety factor of wire rope is an important safety technical index to measure the safety performance and safety status of hoisting wire rope. In order to ensure the safe use of wire rope, when selecting and using wire rope, we must ensure that the safety factor is not less than the minimum value stipulated in the regulations. In any of the following circumstances, the wire rope in use must be replaced: (1) the wire rope with safety factor less than 7. (2) Wire ropes for lifting personnel and materials: the safety factor of lifting personnel is less than 7; The safety factor of lifting materials is less than 6. (3) The safety factor specially designed for lifting materials and hanging trays is less than 5.

In the above situation, the wire rope must be replaced in time to ensure that the wire rope will not cause other accidents such as broken rope in the later use process. If you need to know more about the newly purchased wire rope laboratory testing or want to do it, you can consult Baxter Wire Rope Testing Company for relevant testing in detail. Luoyang Baxter Inspection Company is approved by the relevant state departments, and can carry out destructive and nondestructive inspection on wire ropes. Issue quality report with CMA test. It is an authoritative wire rope testing company in China.