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A kind of braided steel wire belt layer structure and its application

A layer structure, steel wire belt technology, applied to the reinforcement layer of pneumatic tires, vehicle parts, transportation and packaging, etc., can solve the unsatisfactory tire durability, large end stress and deformation, and unfixed ends To achieve the effect of enhancing anti-puncture ability, reducing tire rolling resistance and reducing fuel consumption

Active Publication Date: 2020-06-19
JIANGSU XINGDA STEEL TYPE CORD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the edge of the belt layer after cutting will expose the end of the steel wire without coating, the adhesion will be affected, and the end is not fixed, and the end will be stressed and deformed greatly
In order to strengthen the design of the end of the belt layer and reduce the delamination caused by the stress concentration at the shoulder part, some tire companies have developed a folded and hemmed belt layer, but in the rolling of the tire, because the folded cord is easy to bend Knuckle breaks, tire durability unsatisfactory

Method used

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  • A kind of braided steel wire belt layer structure and its application
  • A kind of braided steel wire belt layer structure and its application
  • A kind of braided steel wire belt layer structure and its application

Examples

Experimental program
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Effect test

Embodiment 1

[0036] Firstly, select the wire rod with weight percentages: 0.60-1.10% carbon content, 0.40-0.70% manganese content, 0.15-0.30% silicon content, 0.03% maximum sulfur content, and 0.30% maximum phosphorus content.

[0037] The wire rod is roughly drawn to obtain a steel wire with a diameter of about 3.0-3.5mm, and the rough drawn steel wire is subjected to intermediate heat treatment, which is called steel wire toughening treatment. Then the steel wire is subjected to intermediate drawing treatment to obtain a steel wire with a diameter of 1.0-2.5 mm after intermediate drawing. And the steel wire is subjected to a second steel wire toughening treatment so that it can be transformed into pearlite. Then electroplating treatment is carried out, and the surface can be plated with a single metal copper or zinc, or an alloy coating formed by two or three metals and thermal diffusion. The binary alloy can be one of copper-zinc, copper-tin, zinc-cobalt, and zinc-nickel, and the terna...

Embodiment 2

[0045] like Figure 4 As shown, other structures are exactly the same as in Example 1, and on the basis of Example 1, a steel wire or a cord C strand with a braiding angle of 0° is added. C is distributed symmetrically with the 00' axis, so it can be woven in the left, middle and right parts of the structure of embodiment 1, and can be selected to be only arranged in the middle part or at the left and right ends. The sum of the width of C distribution accounts for 20%~80% of the width of the woven cord, and the distance between C and C' in any part is d3, and d3 is 1.5~10 times the diameter of the C strand steel wire.

[0046] Use the tires with the belt structure described in the embodiments of the present invention and the tires with the belt structure of the prior art to carry out durability and strength tests. The test conditions for durability and strength performance are carried out according to GB / T 4501-2008, and the test results use an index Said that the index is ba...

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Abstract

A woven steel wire belt ply structure, positioned between a tire tread and a tire body. The woven steel wire belt ply structure is a woven steel wire cord fabric layer consistent with the circumferential direction of a tire and comprises a plurality of A strands, a plurality of B strands, and a plurality of C strands; each of the plurality of A strands and of the plurality of B strands are interwoven to form a woven twill mesh; the plurality of C strands are interleaved between the A strands and B strands longitudinally. The woven steel wire belt ply structure is used individually or is fitted to a first belt ply to replace second to fourth belt plies, so that the paving step of multiple belt plies is simplified; the shoulder deformation of the tire is effectively constrained; the belt ply stress and the distribution of the tire tread grounding pressure are optimized; the durability, wear resistance, and load performance are improved; and oil consumption is reduced.

Description

technical field [0001] The invention belongs to the technical field of braided steel wire cords, in particular to a braided steel wire belt layer structure and its application. Background technique [0002] The belt layer is an important part of the tire. It refers to the material layer under the radial tire tread along the circumferential direction of the tread centerline. It is formed by rolling and covering steel cords and corresponding rubber materials. In addition to the role of tightening the carcass, buffering external impact is also the main function of the belt layer. At the same time, it is also the main force-bearing component, bearing about 60% to 75% of the tire stress. [0003] All-steel radial tires are generally composed of 3 to 4 layers of belt layers, and semi-steel radial tires are generally composed of 2 to 3 layers of belt layers. The first belt layer (the innermost layer) is a transition layer. Due to the large angle of the carcass, it is close to 90°,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60C9/18
CPCB60C9/18
Inventor 刘锦兰周志嵩姚利丽华欣周洁姜志美寇首鹏
Owner JIANGSU XINGDA STEEL TYPE CORD