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All-steel radial tubeless tire and preparation method thereof

A radial and tire technology, applied in the field of all-steel radial tubeless tires, can solve the problems of not being able to effectively improve the adhesive force between the crown and the belt layer, not being able to prevent the separation of the belt layer and the crown, and technical difficulties. , to achieve the effect of easy implementation, enhanced rigidity, economical and reliable

Active Publication Date: 2015-03-25
HANGZHOU CHAOYANG RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] On the one hand, the existing technology cannot effectively improve the adhesion between the crown and the belt layer, reduce the shear stress, and cannot prevent the detachment between the belt layer and the crown caused by stress heat generation; on the other hand, The process technology is more difficult, which greatly increases the cost of tires

Method used

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  • All-steel radial tubeless tire and preparation method thereof
  • All-steel radial tubeless tire and preparation method thereof
  • All-steel radial tubeless tire and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0021] An all-steel radial tire with a new type of crown structure with an under-cap film, the structure of which comprises a crown compound, a shoulder pad rubber (1), a belt layer (2), a carcass ply, an inner liner, a tire The side (3) and bead; the structure of the crown composite part from the outside to the inside is the tread rubber (4), the base rubber (5), the buffer film (6) and the under-cap film (7). The tire is characterized in that: the sidewall (3) is close to the ladle cord (8) and turns up the wire ring (9) to the tire shoulder (1); the outer end point of the under-cap film (7) is located on the sidewall ( 3) Between the inner side and the tire shoulder (1), the inner end point is located between the crown buffer film (6) and the No. 4 belt layer, and the end points of the No. 2, 3, and No. 4 belt layers are closed. The thickness of film (7) under the crown is 2mm, and width is 60mm. The distance from the outer edge of the film (7) under the crown to the edge ...

Embodiment 2

[0028] An all-steel radial tire with a new type of crown structure with an under-cap film, the structure of which comprises a crown compound, a shoulder pad rubber (1), a belt layer (2), a carcass ply, an inner liner, a tire The side (3) and bead; the structure of the crown composite part from the outside to the inside is the tread rubber (4), the base rubber (5), the buffer film (6) and the under-cap film (7). The tire is characterized in that: the sidewall (3) is close to the ladle cord (8) and turns up the wire ring (9) to the tire shoulder (1); the outer end point of the under-cap film (7) is located on the sidewall ( 3) Between the inner side and the tire shoulder (1), the inner end point is located between the crown buffer film (6) and the 0° belt layer, and the end points of No. 2, No. 3 and 0° belt layer are closed. The thickness of film (7) under the crown is 1mm, and width is 80mm. The distance from the outer edge of the film (7) under the crown to the edge of the t...

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Abstract

The invention relates to an all-steel radial tubeless tire. An outer side end point of a rubber sheet below a crown is positioned between the inner side of the crown side and tire shoulder pad rubber; the inner side end point is positioned between a tire crown buffer rubber sheet and a No.4 (or zero degree) belt ply, and seals the end points of a No.2 belt ply, a No.3 belt ply and a No.4 belt ply (or zero degree). By the improvement of the tire crown structure, the rigidity of the tire crown is increased, so that the peripheral deformation in the driving process of a tire is relatively small, the rolling resistance is low, and oil is saved; meanwhile, the bonding force between the tire crown and the pad rubber is also intensified; the shearing stress among the belt plies is reduced, and the splitting among the belt plies as well as among the belt plies and the tire crown, which is caused by stress concentration and ultra high thermogenesis, is prevented, so that the durable safety of the tire shoulder part is improved greatly; the safety hazard of a tire in the aspects of over loading, high-speed long-distance transportation and the like is reduced; the service life of the tire is prolonged; the scheme is feasible, economic and reliable.

Description

technical field [0001] The invention relates to the manufacturing field of all-steel radial tires, in particular to an all-steel radial tubeless tire with a novel crown structure. Background technique [0002] The radial tire came out in the 1940s. Due to the excellent performance brought by its unique structure, after more than half a century of development, the tire has gradually become radial. Radial tires have experienced a long and tortuous development, and now they are becoming more and more flat, tubeless, high-speed, environmentally friendly and functional. With the development of the automobile industry, the performance requirements of tires are getting higher and higher. All-steel radial tires with advantages such as good handling performance, low rolling resistance, fuel saving and good durability have become the main force in the tire industry. However, during the running of all-steel radial tires, delamination between the crown and the belt layer and between th...

Claims

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Application Information

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IPC IPC(8): B60C9/18
Inventor 宋江红张春生戴国锋张洋
Owner HANGZHOU CHAOYANG RUBBER
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