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Steel wire stayed cable filled or coated with polyurea protection materials

A protective material and steel wire technology, which is applied in the field of cables, can solve the problems of hydrogen embrittlement, reduce the strength level of steel wires, etc., and achieve the effect of improving anti-corrosion and prolonging the service life

Inactive Publication Date: 2015-11-25
LIUZHOU OVM MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the "hydrogen embrittlement" phenomenon of galvanized (or zinc-aluminum alloy) and the reduction of the strength level of steel wire, it has been controversial

Method used

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  • Steel wire stayed cable filled or coated with polyurea protection materials
  • Steel wire stayed cable filled or coated with polyurea protection materials
  • Steel wire stayed cable filled or coated with polyurea protection materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0118] A steel wire cable filled with polyurea material in the middle of n steel wires or coated with polyurea protective material:

[0119] Such as Figure 1-1~Figure 1-2 , the steel wire cable filled with polyurea material in the middle or coated with polyurea protective material includes a steel wire assembly composed of 19 steel wires, and the steel wires are either smooth steel wires or steel wires on the outer periphery of the smooth steel wire 1 Anti-corrosion steel wire with epoxy coating, galvanized coating, plastic coating, anti-corrosion grease coating, oily wax or metal coating, surface-attached coating or coating 2, between each smooth steel wire in the middle of 19 steel wires Gap filled with polyurea material 32 constitutes the steel wire cable Ia of filling or being coated with polyurea protective material of the present invention (referring to Picture 1-1 ); or the gap between each anti-corrosion steel wire in the middle part of 19 steel wires is filled with...

Embodiment 2

[0124] A steel wire cable filled or coated with a polyurea protective material composed of a polyurea protective coating I coated on the outermost layer of the steel wire assembly:

[0125] Such as diagram 2-1 , Figure 2-2 As shown, the outer circumference of the steel wire assembly of steel wire cables Ia and IIa filled with polyurea material or coated with polyurea protective material in the middle of the first embodiment is coated with a layer of polyurea protective coating respectively. Layer I31a, thereby constituting the steel wire cable Ib filled or coated with polyurea protective material (see diagram 2-1 ) and steel wire cables IIb filled or coated with polyurea protective material (see Figure 2-2 );

[0126] As a change in the embodiment of the present invention, the steel wire cables Ib and IIb filled or coated with polyurea protective material have a single-layer HDPE sleeve 6 or have an inner HDPE sleeve 6 and an outer layer The double-layer HDPE sleeve co...

Embodiment 3

[0129] The outer layer of the wrapping tape is coated with a layer of polyurea protective coating Ⅱb, and the steel wire cable is filled or coated with polyurea protective material:

[0130] Such as Figure 3-1 , Figure 3-2As shown, a wrapping tape 5 is also wrapped around the outer circumference of the steel wire assembly of a steel wire cable Ia, IIa filled with polyurea material or coated with polyurea protective material in the middle part described in Embodiment 1, forming Steel wire cables Ⅰa0 and Ⅱa0 filled or coated with polyurea protective material; then the outer layer of wrapping tape 5 of steel wire cable Ⅰa0 and Ⅱa0 filled or coated with polyurea protective material is coated with a layer of polyurea protective coating Layer II31b, constituting steel wire cables Ia0c, IIa0c filled or coated with polyurea protective material (see Figure 3-5 , Figure 3-6 );

[0131] Such as Figure 3-3 , Figure 3-4 As shown, the outermost layer of the steel wire assembly d...

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Abstract

The invention provides a steel wire stayed cable filled or coated with polyurea protection materials. The steel wire stayed cable comprises a steel wire combination body formed by n steel wires, wherein each gap formed among the n steel wires is filled with a steel wire stayed cable Ia or IIa formed by the polyurea materials; a steel wire stayed cable Ib or IIb which is formed by a polyurea protection coating and is filled with or coated with polyurea protection materials coats the outer layer of the steel wire stayed cable Ia or IIa; a steel wire stayed cable Ia0c, IIa0cIb0c or Iib0c which is formed by a polyurea protection coating II and is filled with or coated with the polyurea protection materials coats the outer layer of a steel wire stayed cable Ia, IIa, Ib or IIb winding and covering belt; the outer layer of each steel wire stayed cable is provided with a single-layer or double-layer HDPE sleeve, or one layer of polyurea coating coats the outer layer of the single-layer or double-layer HDPE sleeve for forming the multi-protection steel wire stayed cable filled with or coated with the polyurea protection materials; and n is greater than or equal to 1. The steel wire stayed cable has the advantages of anti-slip performance, anti-corrosion performance, vibration reduction performance and high anti-fatigue intensity.

Description

technical field [0001] The invention relates to a cable, in particular to a steel cable filled or coated with a polyurea protective material. Background technique [0002] The prestressed steel wire cable is a key stress-bearing part in the bridge structure, which requires high corrosion resistance and durability; at present, the bridge steel wire cable used for prestressing usually refers to the national standard GB / T18365-2001 "Hot extrusion of cable-stayed bridges". Ethylene high-strength steel wire cable technical conditions" for production and manufacturing. [0003] The corrosion of prestressed steel wire is stress corrosion under the combined action of stress and corrosion (belonging to the category of galvanic corrosion). corrosion. The anti-corrosion plated (coated) steel of prestressed steel wire is always served under the condition of corrosive medium. According to the type of protective layer, it can be divided into non-metallic protective layer (called coating...

Claims

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Application Information

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IPC IPC(8): E01D19/16
Inventor 葛耀君孙利民覃巍巍谢正元石伟邱敏高宁妥黄永玖宋强华剑平李文献植磊卢双桂梁黎霞邹易清邹全
Owner LIUZHOU OVM MASCH CO LTD
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