Technological manufacturing method of ultrahigh-strength steel wire rope for main cable of suspension bridge

Abstract

The invention discloses a technological manufacturing method of an ultrahigh-strength steel wire rope for a main cable of a suspension bridge, particularly relates to the technical field of steel wire rope manufacturing. Triple protection is performed on the steel wire rope for the main cable of the suspension bridge based on steel structure anti-corrosion coating, polysulfide sealants, a high-strength glass fiber cloth reinforcing technology and characteristics of fluorocarbon finish paint. According to the first protection, primer and epoxy micaceous iron intermediate paint treatment is carried out on the surface of the steel wire rope, the corrosion protection provided for the steel wire rope through a primer layer is mainly isolation protection of mechanical shielding, and the steel wire rope is completely isolated from the outside. According to the second protection, on the basis of the first protection, the three layers of polysulfide sealants are subjected to blade coating, and two layers of high-strength glass fiber cloth are wound between the first layer of polysulfide sealant and the second layer of polysulfide sealant, wherein the polysulfide sealants are prepared by matching liquid polysulfide rubber as main body materials with tackifying resin, a vulcanizing agent, an accelerant, a reinforcing agent and the like, and the sealants have excellent fuel oil resistance, heat resistance and atmospheric aging resistance.

Description

technical field [0001] The invention specifically relates to the technical field of steel wire rope manufacturing, in particular to a manufacturing method of an ultra-high-strength steel wire rope for a main cable of a suspension bridge. Background technique [0002] Suspension bridge, also known as suspension bridge (suspension bridge), refers to a bridge that uses cables (or steel chains) suspended through towers and anchored on both banks (or both ends of the bridge) as the main load-bearing members of the upper structure. Its cable geometry is determined by the balance of forces and is generally close to a parabola. Many suspenders hang from the cables to hang the bridge deck. Stiffening beams are often set between the bridge deck and the suspenders to form a combined system with the cables to reduce the deflection and deformation caused by the load. [0003] Due to the erosion of chloride ions in the marine environment, the existing steel wire ropes used for the main c...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a process manufacturing method for the ultra-high strength steel wire rope for the main cable of the suspension bridge, to solve the problem that the existing steel wire rope for the main cable of the suspension bridge proposed in the above-mentioned background technology is due to the erosion of chloride ions in the marine environment, and the surface coating It is easy to fail, and the structure of the steel wire rope is prone to corrosion, and the steel wire rope is affected by perennial ultraviolet radiation, vibration stress and other reasons, showing different degrees of peeling and corrosion of anti-corrosion coating, which affects the structural strength of the steel wire rope.