What are the measures to prevent fatigue damage of steel wire rope

In order to prevent fatigue damage of steel wire rope, the following aspects can be started:

1.  If conditions permit, the diameter of the drum and pulley shall be increased as much as possible. The increase of diameter increases the bending angle, reduces the bending stress of steel wire in steel wire rope, and can significantly improve the fatigue life of steel wire rope.
2.  When updating the new rope, the principle of "going out from the top and entering from the bottom" shall be observed to avoid reverse bending of the steel rope as far as possible. The test data show that the failure of reverse bending is about twice that of same direction bending.
3.  The wire with thicker diameter shall be selected as far as possible to contact the steel wire rope. The service life can be doubled by using these wire ropes.

Note:

Stress: when the object deforms due to external factors (stress, humidity, temperature field change, etc.), the interacting internal force will be generated in front of each part of the object to resist the action of such external factors, and try to use the object to recover from the denatured position to the position before deformation.

Preventing fatigue damage of steel wire rope can greatly increase the service life of steel wire rope electric hoist, so the operator must pay attention to these contents.

At present, manganese phosphating coated steel wire rope has the strongest wear resistance in the world. Manganese phosphating is one of the wear-resistant coatings. Manganese phosphating film is the product of electrochemical reaction between iron and steel materials and phosphating solution. Manganese phosphating film is extremely wear-resistant and can greatly improve the wear resistance of the surface of iron and steel materials. The steel gear surface of automobile gearbox is treated with manganese phosphorylation and has been used for more than ten years without wear and corrosion. It can be seen that manganese phosphating film plays an important role.

Manganese phosphating coated steel wire rope is the most advanced technology in the field of steel wire rope manufacturing in the world and the upgraded product of smooth steel wire rope because the phosphating film improves the wear resistance and corrosion resistance of the steel wire surface, is not easy to wear and rust, and its fatigue life far exceeds that of smooth steel wire rope, Some domestic enterprises have produced in large quantities according to national standards through the purchase of patent license, which is sought after by users, because the average daily use cost of manganese phosphating coated steel wire rope is only about one third of that of smooth steel wire rope, with ultra long service life and lower unit use cost.

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