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Subway wire rope

Steel wire rope is a helical wire bundle made of steel wires with mechanical properties and geometric dimensions that meet the requirements, twisted together according to certain rules.
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Category:Steel wire rope for high-speed rail and subway contact net

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Product description

Steel wire rope is a helical wire bundle made of steel wires with mechanical properties and geometric dimensions that meet the requirements, twisted together according to certain rules. The wire rope is composed of steel wire, rope core and grease. A steel wire rope is a rope that is twisted into strands from multiple layers of steel wires, and then a certain number of strands are twisted into a spiral shape with a certain number of strands as the center of the rope core. In material handling machinery, it is used for lifting, traction, tensioning and carrying. The steel wire rope has high strength, light weight, stable work, not easy to break the whole rope suddenly, and reliable work. In 1834, European Olubert invented the world's first steel wire rope (smooth steel wire rope). The Tianjin No. 1 Steel Wire Rope Factory established in 1939 was the first metal product enterprise in my country.

 

Wire rope composition

The wire rope needs to bear the effect of alternating load during the use process, and its use performance is mainly determined by the mechanical properties of the steel wire, the surface condition of the steel wire and the structure of the steel wire rope. The steel wire material includes carbon steel or alloy steel, which is formed by cold drawing or cold rolling. The cross section of the steel wire has round or special shape (T type, S type and Z type). The special shape cross section steel wire is mainly used for the production of sealed steel wire ropes. High tensile strength and toughness, and appropriate surface treatment of steel wire to meet the needs of different environmental conditions.

rope core

The main function of the rope core is to support the steel wire rope to achieve a stable cross-sectional structure. The rope core includes a steel core and a fiber core. The fiber core includes a natural fiber core and a synthetic fiber core, such as sisal, jute, cotton, etc., and the synthetic fiber core includes polyethylene and polypropylene filaments. The natural fiber core can store more grease to lubricate the wire rope and prolong the service life of the wire rope.

Grease

Spraying grease during the twisting process of steel wire rope has two main functions. One is to lubricate the wire rope to slow down the wear on the surface of the steel wire. The other is that the grease can isolate the surface of the steel wire from oxygen in the air and cause oxidation and corrosion to the wire rope. Play an inhibitory role.

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