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Seven-strand steel cord for engineering tire

A steel cord and engineering technology, applied in textiles, papermaking, textile cables, etc., to prevent cord loosening, prolong service life, and improve resilience

Inactive Publication Date: 2016-03-30
JIANGSU XINGDA STEEL TYPE CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The breaking force of traditional carcass steel cords is generally about 2750N, which can fully meet the requirements of use

Method used

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  • Seven-strand steel cord for engineering tire
  • Seven-strand steel cord for engineering tire
  • Seven-strand steel cord for engineering tire

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Experimental program
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Effect test

Embodiment Construction

[0025] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0026] see Figure 1 to Figure 3 As shown, a seven-strand steel cord for an engineering tire is formed by braiding and twisting steel wires. The diameter of the steel wires is 0.25 mm, which includes a core strand 1, an outer layer strand 2 and a winding steel wire 3. It is formed by adding a winding steel wire 3 after strand braiding and twisting. The twist direction of the wrapping steel wire 3 is S twist, and the twist distance d is 5mm; The structure around the strand 1 has a twist direction of Z twist, a twist distance D of 20mm, and a circular cross section; the core strand 1 and the outer strand 2 are all twisted by five steel wires, and the twist All directions are S twist.

[0027] The embodiment is only for the convenience of understanding the technical solution of the present invention, and does not constitu...

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Abstract

The invention discloses a seven-strand steel cord for an engineering tire. The seven-strand steel cord is formed by weaving and twisting steel wires and comprises a core wire strand and outer layer strands, the seven-strand steel cord is formed by weaving and twisting seven strands of steel wires and then adding a winding steel wire, and the twisting direction of the winding steel wire is the S twisting direction. After the seven strands of steel wires are twisted, the structure that the six outer layer strands are evenly arrayed around the core wire strand, and the twisting direction is the Z twisting direction, and the section is round. The core wire strand and the outer layer strands are each formed by weaving and twisting five steel wires, and the twisting directions are each the S twisting direction. The steel cord is high in strength, resistant to puncture and good in wear resistance, and while breaking force of the steel cord is improved, the proportion of the steel cord in the tire is reduced.

Description

technical field [0001] The invention relates to a seven-strand steel cord for engineering machinery radial tires. Background technique [0002] The market demand for lighter weight tires drives the strength of steel wire for steel cords to continuously increase, and its strength is also developing from ordinary strength and high strength to ultra-high strength and extremely high strength. By adopting higher strength steel cords, It can ensure that the tire can not only reduce the amount of steel cord in the cord under the condition of a certain strength, but also reduce the consumption of rubber material, realize the reduction of the tire's own weight, thereby reducing the rolling resistance of the tire, saving fuel consumption, and The purpose of reducing carbon dioxide emissions. The strength grade of the steel wire in the steel cord, according to the requirements in ISO17832:2009, the strength of a single steel wire can be defined by the following formula (strength unit:...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D07B1/06
CPCD07B1/0613D07B1/06D07B1/0693D07B2201/1032D07B2501/2046
Inventor 刘祥胡自明杭卫明周志祥刘天亮
Owner JIANGSU XINGDA STEEL TYPE CORD
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