At the construction site of the Wufeng Mountain Yangtze River Suspension Bridge, 4 large-scale wire winding machines hold the main cable, and at the same time "movement", as the gear rotates, the silver-white "silk thread" is pressed around the main winding with a diameter of 1.3 meters. On the cable, it marks that the Wufengshan Yangtze River Bridge has entered the anticorrosion construction stage of the main cable.
The anticorrosion of the main cable of the Wufengshan Yangtze River Bridge adopts an "S" shaped steel wire winding, wrapped tape hot melt, and air dehumidification composite protection system. As a new technology for the main cable protection of suspension bridges, the "S" shaped steel wire as the main cable winding wire can be pressed together with each other after winding. The sealing effect is good, which effectively blocks the intrusion of rainwater and mist condensation water, and slows the medium to the main cable. Corrosion of the main cable to extend the service life of the main cable. After the S-shaped filament is wound, a layer of high-performance composite wrapping tape is sealed on the surface by hot melt shrinkage. At the same time, an active dehumidification system is established inside the main cable to deliver dry air to the main cable , To remove the moisture that penetrates inside the main cable, reduce the water content of the main cable, and extend the service life of the main cable. At the same time, the combination of "S" shaped steel wire winding and surface coating can form an airtight protective layer outside the main cable, so that the main cable dehumidification system is basically guaranteed.
The main cable of the Wufengshan Yangtze River Bridge is wound with 3mm high "S" low carbon steel wire. The wire is wound in the order of the middle span and then the side span. The total steel wire consumption of the bridge is about 362.4 tons. It takes about a month for the main cable of Wufengshan Yangtze River Bridge to "wear on protective clothing"!
The main cable of the super large suspension bridge and the 3mm high "S" steel wire used for anticorrosion of the main cable are all products of JYFES Steel Cable Technology Group.
About JYFES Steel Cable Technology Group
JYFES has a nationally recognized enterprise technology center and a metal material testing center, undertaking a number of key national science and technology support plan topics, as the "National Steel Standardization Committee Wire Rope Sub-Technical Committee Secretariat" and "International Organization for Standardization Wire Rope Technology Committee (ISO / TC105) Secretariat ”is a unit that independently undertakes the secretariat of the International Organization for Standardization Technical Committee. Fasten also successfully established the "National Metal Wire Products Engineering Technology Research Center". JYFES is supported by science and technology and promotes industrial transformation and upgrading. It has won first and second prizes of national scientific and technological progress.
The company currently has the world's foremost production capacity of steel wire ropes for conveyor belts, bridge cables, and prestressed steel strands, the forefront of the industry's fine steel ropes, steel cords for tires (joint venture), cutting steel wire (joint venture) production base, and domestic forefront stainless steel products Production base.
Products
High Strength Steel Wire
Spring wire / Piano wire
Steel wire for car seat frame
Bust wire
Flexible shaft steel wire
Galvanized steel wire for submarine cable
Galvanized steel wire for steel core aluminum stranded wire
Armored cable steel wire
Rope wire
High-Strength Steel Wire Rope
Steel wire rope for high strength conveyor belt
Aviation wire rope
Port Machinery Wire Rope
Wire rope for elevator
Mine wire rope
Non-rotating wire rope
Anti-twist rope
Wire rope for winch
Steel wire rope for hose
General purpose wire rope
Wire rope for operation
Flexible steel wire rope for automobile
Steel wire rope for special door machine and fitness equipment
Micro wire rope
Wire rope for gondola
Stainless Steel Products
Prestressed steel strand
Steel strand for prestressed concrete
Prestressed hot-dip galvanized steel strand
Unbonded prestressed steel strand