Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials

A technology of protective material and production method, which is applied to auxiliary devices for rope making, bridge parts, textiles and papermaking, etc., can solve problems such as hydrogen embrittlement and reduction of steel wire strength grade.

Active 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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  • Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials
  • Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials
  • Manufacturing method for steel wire inhaul cable filled or coated with polyurea protective materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0198] A method for making a steel wire cable filled with a polyurea material or coated with a polyurea protective material:

[0199] The steel wire includes a pretreated smooth steel wire or a surface with epoxy coating, galvanized coating, plastic coating, anti-corrosion grease coating, oily wax or metal coating on the outer periphery of the smooth steel wire 1 Corrosion-resistant steel wire with coating or plating 2:

[0200] In this embodiment, the steel wire cable filled with polyurea material in the middle or coated with polyurea protective material is prepared by attaching n smooth steel wires after pretreatment or attaching The 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 is dried, coiled, separated and filled with polyurea material. And formed into a steel wire combination, constitute the steel wire cable Ia filled with polyurea materia...

Embodiment 2

[0216] A method for making 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:

[0217] The method is to pass through the steel wire cables Ia and IIa filled or coated with polyurea protective materials produced in Example 1 through A-F and then go through H1: polyurea material coating process I, that is, through one of the following methods:

[0218] ① Extrusion coating: polyurea material hot-extruded by steel wire cable Ⅰa or Ⅱa through extrusion equipment;

[0219] ②Spraying: heat and pressurize the equipment, the raw materials are mixed at the nozzle, and the polyurea material is sprayed from the spray gun to the wire cable Ia or IIa;

[0220] ③ Soaking and pumping coating: steel wire cables Ⅰa or Ⅱa are soaked in polyurea coating through traction equipment, and formed through the exit ring structure after soaking;

[0221] ④Machine brushing method: us...

Embodiment 3

[0231] The production method of the steel wire cable filled or coated with polyurea protective material with wrapping tape or coated with a layer of polyurea protective coating II on the outer layer of the wrapping tape:

[0232] The method is to coat the steel wire cables Ia, IIa made by the middle part of the polyurea material filled with polyurea material or coated with the polyurea protective material and the outermost layer made by the embodiment two with a layer of polyurea protective coating The steel wire cables Ⅰb and Ⅱb composed of I filled or coated with polyurea protective materials go through the G: wrapping process, and a layer of wrapping tape 5 is wrapped around the outer periphery of the steel wire assembly to form a polyurea-filled or coated steel cable. Steel wire cables Ⅰa0, Ⅱa0 of protective materials (see Figure 3-1 , Figure 3-2 ) or constitute steel wire cables Ib0, IIb0 filled or coated with polyurea protective material (see Figure 3-3 , Figure 3...

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Abstract

The invention relates to a manufacturing method for a steel wire inhaul cable filled or coated with polyurea protective materials. The manufacturing method includes the steps that after steel wires are pretreated, steel wire combinations are molded through drying, coiling, wire dividing, polyurea material filling and coalescence, and steel wire inhaul cable bodies Ia or IIa filled or coated with the polyurea protective materials are formed, wherein gaps at the portions, in the middle portions of the n steel wires, between the steel wires are filled with the polyurea materials; the outer layer of the steel wire inhaul cable bodies Ia or IIa is coated with a polyurea protective coating I through the polyurea material extrusion coating working procedure to form steel wire inhaul cable bodies Ib or II b filled or coated with the polyurea protective materials; on the basis of the steel wire inhaul cable bodies of the two structures, the steel wire inhaul cable which has multiple protection layers and is provided with the polyurea protective coatings is formed through one or more of the wrapping and packaging molding working procedure, the PE sleeve extrusion molding working procedures I and II and polyurea material coating working procedures II and III. The steel wire inhaul cable which is manufactured with the method and provided with the polyurea protective coatings is compact in structure and antiseptic, reduces shocks, and is good in skid resistance and abrasive resistance.

Description

technical field [0001] The invention relates to a manufacturing method of a drag cable, in particular to a manufacturing method of a steel wire drag 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, i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D19/16D07B7/14D07B1/14
Inventor 覃巍巍黄永玖石伟谢正元邹易清植磊闫磊李文献孙利民葛耀君袁友邱敏高宁妥宋强华剑平卢双桂梁黎霞邹全覃磊
Owner LIUZHOU OVM MASCH CO LTD
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