NEWS Center

22

2022

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03

Imported mining steel wire rope manufacturer: Regarding round strand steel wire rope

Classification:


【Summary description】People who often use slings and riggings know that after using slings and riggings for a period of time, there will be "twisting Fried Dough Twists". The twisted wire rope can no longer be used, and it must be "stiffened" to restore the normal state of the wire rope. So what is the reason that the wire ropes are twisted together? Below is a detailed introduction by the editor of the imported mining wire rope manufacturer.

Why are circular strand steel wire ropes always twisted together by imported mining wire rope manufacturers?

People who often use slings and riggings know that after using slings and riggings for a period of time, there will be "twisting Fried Dough Twists". The twisted wire rope can no longer be used, and it must be "stiffened" to restore the normal state of the wire rope. So what is the reason that the wire ropes are twisted together? Below is a detailed introduction by the editor of the imported mining wire rope manufacturer.

Actually, it is because the lifting height is abnormal and the steel wire ropes are twisted together. Generally speaking, during lifting, the steel wire ropes are constantly wound and loosened, and the pressure on the steel wire ropes is also constantly increasing. Z will eventually lift the heavy object, but the lifting height of the steel wire rope cannot be too high. Otherwise, the internal force of the rotation of the steel wire rope will gradually accumulate, causing the steel wire rope to rotate, causing the connecting strands of the steel wire rope to intertwine and form a "twisted" state.

In summary, if the wire rope you are using is always twisted, you can lower the lifting height appropriately and reinstall the wire rope. Do not use twisted wire rope recklessly to avoid accidents.

Selection of imported mining steel wire ropes

Firstly, the main factors that cause the strength of imported mining steel wire ropes to gradually decrease during use are wear, corrosion, and fatigue wire breakage. Generally speaking, these three factors are interrelated. Due to different working conditions in mines, the main factors are also different. Therefore, you need to choose different types of steel wire ropes based on the mine's own conditions and usage experience, combined with the characteristics of various steel wire ropes.

When used in shafts with high water content and high acidity and alkalinity in mines, galvanized steel wire ropes should be used due to severe corrosion. It is recommended to use hot-dip galvanizing. Although galvanized steel wire ropes are more expensive than cold galvanizing, they are more suitable for their cost-effectiveness.

In mines with severe wear and tear, steel wire contact circular strands, special strand steel wire ropes, and surface contact steel wire ropes with thicker outer steel wires are selected.

What is the national standard steel wire rope like for imported mining steel wire rope manufacturers?

The steel wire is made of high-quality carbon steel, which has undergone multiple cold drawing and heat treatment to achieve high strength. Alternatively, galvanized steel wire ropes can be used in damp outdoor environments to enhance rust resistance.

Imported mining steel wire rope is a standard product of all industrial countries. Its diameter, number of strands, number of steel wires per share, tensile strength, and sufficient safety factor can be selected according to the application needs. Its specifications and models can be found in relevant manuals. In addition to the wear of the outer steel wire, the steel wire rope also gradually breaks due to metal fatigue caused by repeated bending around the pulley and drum, So the ratio of the diameter of the pulley or drum to the diameter of the steel wire rope is an important factor determining the service life of the steel wire rope. With a large transmission ratio, the bending stress of the steel wire is small, and the service life is long. However, the mechanism is large, and the appropriate ratio must be determined based on the application situation. If the surface wear and corrosion degree of the steel wire rope or the number of broken wires per lay exceeds the specified value, it should be scrapped.

Imported mining steel wire ropes are mainly used for transportation that requires high-strength steel wire ropes such as lifting and hauling.