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Truck radial tire body structure

A radial tire and carcass structure technology, which is applied to tire parts, reinforcement layers of pneumatic tires, vehicle components, etc., can solve problems affecting tire service life, affecting the production environment, poor adhesion, etc., and achieve improved retreading performance , Reduce consumption, reduce heat generation effect

Inactive Publication Date: 2020-08-07
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the steel wire bonded carcass formula, m-cobalt system or pure cobalt system is an important condition to ensure the bonding performance between the steel wire bonded compound and the steel wire, but if cobalt is added to the formula, although the bond between the compound and the steel wire The compatibility is improved, but the adhesion is poor under heat and humidity aging, which affects the service life of the tire, and the m-cobalt system is sublimated at a processing temperature of 145°C due to the addition of resorcinol, resulting in smoke and odor in the workshop, affecting production surroundings

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0015] A carcass structure of a load radial tire. The tire includes a crown portion 1, a base portion 2 located under the crown and a sidewall 4 below the two shoulders 3. An inner liner 5 is arranged on the inner side of the tire. The inner liner There is a layer of carcass 6 on the outer side of the carcass 6, and the two sides of the carcass 6 are wrapped around the bead ring 7 and placed in the triangular part 9 to form the bead part 8. The carcass is made of three-phase alloy steel cords and cobalt-free tires. The carcass rubber is combined by calendering. The coating of the steel cord contains 64.5% Cu, 31.5% Zn and 4% Co. The carcass compound formula contains 100 parts by weight of natural rubber and 53 parts by weight of carbon black N326. Zinc oxide is 8 parts by weight, anti-aging agent is 2.5 parts by weight, insoluble sulfur OT20 is 5.0 parts by weight, accelerator NS is 0.4 parts by weight, and anti-scorch agent CTP is not added.

[0016] The density of three-phas...

Embodiment 2

[0018] A carcass structure of a load radial tire. The tire includes a crown portion 1, a base portion 2 located under the crown and a sidewall 4 below the two shoulders 3. An inner liner 5 is arranged on the inner side of the tire. The inner liner There is a layer of carcass 6 on the outer side of the carcass 6, and the two sides of the carcass 6 are wrapped around the bead ring 7 and placed in the triangular part 9 to form the bead part 8. The carcass is made of three-phase alloy steel cords and cobalt-free tires. The carcass rubber is combined by calendering. The coating of the steel cord contains 67% Cu, 29% Zn and 4% Co. The carcass compound formula contains 100 parts by weight of natural rubber and 55 parts by weight of carbon black N326. 9 parts by weight of zinc oxide, 3.0 parts by weight of anti-aging agent, 6.0 parts by weight of insoluble sulfur OT20, 0.5 parts by weight of accelerator NS, and 0.1 part by weight of anti-scorch agent CTP.

[0019] The density of three...

Embodiment 3

[0021] A carcass structure of a load radial tire. The tire includes a crown portion 1, a base portion 2 located under the crown and a sidewall 4 below the two shoulders 3. An inner liner 5 is arranged on the inner side of the tire. The inner liner There is a layer of carcass 6 on the outer side of the carcass 6, and the two sides of the carcass 6 are wrapped around the bead ring 7 and placed in the triangular part 9 to form the bead part 8. The carcass is made of three-phase alloy steel cords and cobalt-free tires. The carcass rubber is combined by calendering. The coating of the steel cord contains 69.5% Cu, 26.5% Zn and 4% Co. The formula of the carcass rubber contains 100 parts by weight of natural rubber and 57 parts by weight of carbon black N326. 10 parts by weight of zinc oxide, 3.5 parts by weight of anti-aging agent, 7.0 parts by weight of insoluble sulfur OT20, 0.6 parts by weight of accelerator NS, and 0.2 parts by weight of anti-scorch agent CTP.

[0022] The densi...

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Abstract

The invention relates to a tire body structure, in particular to a truck radial tire body structure. The tire body structure of the truck radial tire comprises a tire crown part, a base part positioned on the lower layer of the tire crown part and tire sidewalls below two tire shoulder parts, a lining layer is arranged on the inner side of the tire; a layer of tire body is arranged on the outer side of the lining layer; two sides of the tire body bypass the steel wire ring to be turned outwards and wrapped at a triangular part to form a tire bead part, the tire body is formed by calendering and combining a three-phase alloy steel wire cord and cobalt-free tire body rubber, and a plating layer of the steel wire cord contains 64.5%-69.5% of Cu, 26.5%-31.5% of Zn and 3%-5% of Co. According tothe tire body structure, the three-phase alloy steel wire cord threads (TAWI) and the cobalt-free tire body rubber are combined in a calendering mode, the tread structure can improve the adhesive force of rubber materials and steel wires under damp and hot aging, heat generation of a tire body is reduced, and the service life of a tire is prolonged.

Description

technical field [0001] The invention relates to a carcass structure, in particular to a carcass structure of a load radial tire. Background technique [0002] In the steel wire bonded carcass formula, m-cobalt system or pure cobalt system is an important condition to ensure the bonding performance between the steel wire bonded compound and the steel wire, but if cobalt is added to the formula, although the bond between the compound and the steel wire The compatibility has been improved, but the adhesive force is poor under humid heat aging, which affects the service life of the tire, and the addition of resorcinol in the m-methylcobalt system sublimates at a processing temperature of 145°C, causing smoke and odor in the workshop and affecting production environment. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a carcass structure of a radial truck tire. The carcass structure of the pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60C9/02B60C9/18C08L7/00C08K13/02C08K3/04C08K3/22C08K3/06C08K5/47
CPCB60C9/02B60C9/18C08K3/04C08K3/06C08K3/22C08K5/47C08K13/02C08L7/00
Inventor 崔玉叶赵江华
Owner JIANGSU GENERAL SCI TECH
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