Composite type asphalt-impregnated steel wire rope for railway and production method thereof

A production method and composite technology, applied in the application field of steel wire rope, can solve the problems that the composite steel wire rope cannot meet the design requirements of high-speed railways, and can not meet the requirements, so as to ensure work efficiency and work safety, strong tensile strength and service life long effect

Active Publication Date: 2015-04-29
江苏亚盛金属制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of high-speed railways in China and the world, more and more special steel wire ropes are used for electrified railways, and the requirements for their quality and performance are getting higher and higher. The requirements for the composite steel wire ropes used in railway compensation devices are also getting higher and higher. On the premise of considering the reasonable cooperation of the rope and the wheel and the small increase of the wheel groove of the overall device, the diameter of the composite steel wire rope basically does not increase, and higher requirements are put forward for the breaking force of the composite steel wire rope, and the composite steel wire rope is required to have a stronger In addition to fatigue resistance and fatigue resistance, the composite steel wire rope also needs to have a good electrical conductivity, but the existing composite steel wire rope cannot meet the design requirements of high-speed railways, and cannot meet the existing high standard requirements

Method used

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  • Composite type asphalt-impregnated steel wire rope for railway and production method thereof
  • Composite type asphalt-impregnated steel wire rope for railway and production method thereof

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Experimental program
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Effect test

Embodiment 1

[0035] Another aspect of the present invention provides a method for producing a composite asphalt-impregnated steel wire rope for railways. The structure of the composite asphalt-impregnated steel wire rope for railways is 12×25Fi+12×7+1×36SFi, and the tensile strength of the single-strand structure is greater than Equal to 2300Mpa, the tensile force of inner strand 2 is greater than or equal to 2300KN, the tensile force of outer strand 3 is greater than or equal to 6000KN, the knotting tension of central strand 1, inner strand 2, and outer strand 3 is greater than or equal to 55%, central strand 1, inner strand 2 The anti-torsion times are all greater than or equal to 21, which includes the following steps,

[0036] Step 1. For the wire rod, use SWRH72A with a diameter of 5.5 mm.

[0037] Step 2. Rough drawing. Use a straight wire drawing machine model 11 / 560 to draw a 5.5 mm diameter SWRH72A wire into a 2.0 mm SWRH72A. The drawing process is 5.5-4.9-4.4-4.0-3.7-3.4- 3.1-2....

Embodiment 2

[0049] Another aspect of the present invention provides a method for producing a composite asphalt-impregnated steel wire rope for railways. The structure of the composite asphalt-impregnated steel wire rope for railways is 12×25Fi+12×7+1×36SFi, and the tensile strength of the single-strand structure is greater than Equal to 2300Mpa, the tensile force of inner strand 2 is greater than or equal to 2300KN, the tensile force of outer strand 3 is greater than or equal to 6000KN, the knotting tension of central strand 1, inner strand 2, and outer strand 3 is greater than or equal to 55%, central strand 1, inner strand 2 The anti-torsion times are all greater than or equal to 21, which includes the following steps,

[0050] Step 1. For the wire rod, use SWRH72A with a diameter of 5.5 mm.

[0051] Step 2. Rough drawing. Use a straight wire drawing machine model 11 / 560 to draw a 5.5 mm diameter SWRH72A wire into a 2.0 mm SWRH72A. The drawing process is 5.5-4.9-4.4-4.0-3.7-3.4- 3.1-2....

Embodiment 3

[0062] Another aspect of the present invention provides a method for producing a composite asphalt-impregnated steel wire rope for railways. The structure of the composite asphalt-impregnated steel wire rope for railways is 12×25Fi+12×7+1×36SFi, and the tensile strength of the single-strand structure is greater than Equal to 2300Mpa, the tensile force of inner strand 2 is greater than or equal to 2300KN, the tensile force of outer strand 3 is greater than or equal to 6000KN, the knotting tension of central strand 1, inner strand 2, and outer strand 3 is greater than or equal to 55%, central strand 1, inner strand 2 The anti-torsion times are all greater than or equal to 21, which includes the following steps,

[0063] Step 1. For the wire rod, use SWRH72A with a diameter of 5.5 mm.

[0064] Step 2. Rough drawing. Use a straight wire drawing machine model 11 / 560 to draw a 5.5 mm diameter SWRH72A wire into a 2.0 mm SWRH72A. The drawing process is 5.5-4.9-4.4-4.0-3.7-3.4- 3.1-2....

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Abstract

The invention belongs to the technical field of steel wire rope application and particularly relates to a composite type asphalt-impregnated steel wire rope for railway and a production method thereof. The composite type asphalt-impregnated steel wire rope comprises a central stand, inner layer strand which are arranged at the periphery of the central stand and arranged in the form of a dodecagon with the central strand as well as outer layer strand which are arranged at the peripheries of the inner strand and arranged in the form of a dodecagon with the inner layer strands, wherein the number of the inner layer strands is 12, the number of the outer layer strands is 12; the central strand and the inner layer strands, the inner layer strands and the outer layer strands are in point contact. The composite type asphalt-impregnated steel wire rope is simple in structure, low in production cost, relatively strong in tensile strength, fatigue resistance, corrosion resistance and long in service life. By repeatedly calculating and testing, designing and stimulating tests, a special electric railway steel wire rope which is high in strength and high in fatigue resistance is produced. Compared with the prior art, the steel wire rope is high in filling coefficient and thickened in contact layer surface steel wire, and has the advantages of being high in strength, high in fatigue resistance and high in electrical conductivity.

Description

technical field [0001] The invention belongs to the technical field of steel wire rope applications, and in particular relates to a composite asphalt-impregnated steel wire rope for railways and a production method thereof. Background technique [0002] With the development of high-speed railways in China and the world, more and more special steel wire ropes are used for electrified railways, and the quality and performance requirements are getting higher and higher. On the premise of considering the reasonable cooperation of the rope and the wheel and the small increase of the wheel groove of the overall device, the diameter of the composite steel wire rope basically does not increase, and higher requirements are put forward for the breaking force of the composite steel wire rope, and the composite steel wire rope is required to have a stronger In addition to anti-fatigue performance and fatigue resistance, the composite steel wire rope also needs to have a good electrical ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/10D07B1/14D07B3/00D07B7/02B21C1/02B21C43/02B21C9/00
CPCB21C1/02B21C9/00B21C43/02D07B1/10D07B1/14D07B1/141D07B3/00D07B7/02
Inventor 蒋东华蒋红俊周江赵洪章
Owner 江苏亚盛金属制品有限公司
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