Fatigue resistant steel wire rope and manufacturing method thereof

Abstract

The invention relates to a fatigue resistant steel wire rope. The steel wire rope is composed of one steel wire in the center, nine steel wires on the first layer, nine steel wires on the second layer, 18 steel wires on the third layer, 18 steel wires on the fourth layer, 28 steel wires on the fifth layer and 28 steel wires on the sixth layer, the raw materials of the steel wires select 72A or 70#steel wire rods low in carbon content, the steel wires are subjected to draw forming and then processed through a hot-dip galvanizing aluminium alloy plating, after the steel wire rope is twisted tobe formed, pretension stabilization is conducted, and then high anti-corrosion plastic coating is conducted. The diameters of the steel wires on the same layer in the steel wire rope are the same, thesteel wire rope is twisted at a time but not twisted in a layered mode, the steel wires in the steel wire rope are in a line contact state, and the bending stress of the steel wires is reduced. Steelwire rope stress elimination is good, the fatigue resistance and corrosion resistance of the steel wire rope are improved, residual structure elongation of the steel wire rope is effectively eliminated, and the service life is prolonged.

Description

Technical field [0001] The invention relates to a fatigue-resistant steel wire rope and a manufacturing method thereof, and belongs to the technical field of metal product processing. Background technique [0002] The steel wire ropes for space structures are mainly single-strand ropes. Due to their large breaking force, high corrosion resistance, high elastic modulus and good non-rotating performance, they have been widely used in space truss suspension structure construction and racing tracks. In large buildings such as umbrella-shaped ceilings, space-stays steel structure canopies, and ship anchors, the existing steel wire rope production technology still has shortcomings. The main reason is that high-carbon 82B wire rods are used in the production of steel wire ropes. Large, strong resistance to deformation, the use of multi-level (layered) twisting technology when twisting the steel wire, the steel wire has bending stress, which leads to poor stress relief of the steel wire,...

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Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a steel wire rope with fatigue resistance and its

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