tire tread structure

A technology for tire tread and crown, applied in special tires, tire parts, transportation and packaging, etc., can solve the problem that the size of the crown rubber, the base rubber or the lower layer rubber cannot be completely produced according to the construction, the tread groove bottom cracks, etc. Early shoulder gap and other problems, to avoid hidden quality problems, reduce shoulder gap problems, and reduce heat generation.

Active Publication Date: 2018-03-09
JIANGSU GENERAL SCI TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual production process, the size of the crown rubber and the base rubber or the lower layer rubber cannot be completely produced according to the construction, and there will be more or less errors
If the base rubber or underlayer rubber is too thick, it will cause quality problems of tread groove bottom crack; if the base rubber or underlayer rubber is too thin, it will cause high heat generation in the shoulder, and quality problems such as early shoulder voids.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The thickness of the upper crown rubber A is 7 mm, the thickness of the lower crown rubber B is 10 mm, the thickness of the base of the base rubber C is 4 mm, and the thickness of the bottom rubber of the base rubber C is 3 mm.

[0017] The upper crown rubber A adopts a high wear-resistant rubber material, and the upper crown rubber A includes the following components, and the proportions of the components are calculated in parts by weight: 70 parts of smoked sheet rubber RSS3, 25 parts of butadiene rubber BR9000, 5 parts of polyurethane rubber, 48 parts of carbon black N134, 3.0 parts of zinc oxide, 1.5 parts of stearic acid, 4.0 parts of anti-aging agent, 1.0 part of sulfur, 1.2 parts of accelerator NS, 0.1 part of anti-scorch agent CTP.

[0018] The lower crown rubber B needs to take into account both wear resistance and low heat generation. Generally, carbon black with a prefix of "2" such as carbon black N234 is used. The lower crown rubber B includes the following...

Embodiment 2

[0021] The thickness of the upper crown glue A is 8mm, the thickness of the lower crown glue B is 12mm, the thickness of the base glue C is 5mm, and the thickness of the base glue C of the base glue C is 4mm.

[0022] The upper crown rubber A adopts a high wear-resistant rubber material. The upper crown rubber A includes the following components, and the proportions of the components are calculated in parts by weight: 100 parts of smoked sheet rubber RSS3, 52 parts of carbon black N103, 3.5 parts of zinc oxide, 2.0 parts of Parts of stearic acid, 5.0 parts of anti-aging agent, 1.2 parts of sulfur, 1.5 parts of accelerator NS, 0.3 parts of anti-scorch agent CTP.

[0023] The lower crown rubber B needs to take into account both wear resistance and low heat generation. Generally, carbon black with a prefix of "2" such as carbon black N234 is used. The lower crown rubber B includes the following components, the proportions of which are in parts by weight: 100 parts of rubber SCR5,...

Embodiment 3

[0026] The thickness of the upper crown rubber A is 7.5 mm, the thickness of the lower crown rubber B is 11 mm, the thickness of the base of the base rubber C is 4.5 mm, and the thickness of the bottom rubber of the base rubber C is 3.5 mm.

[0027] The upper crown rubber A adopts a high wear-resistant rubber material. The upper crown rubber A includes the following components, and the proportions of the components are calculated in parts by weight: 80 parts of smoked sheet rubber RSS3, 10 parts of butadiene rubber BR9000, 2 parts of polyurethane rubber, 50 parts of carbon black N134, 3.4 parts of zinc oxide, 1.6 parts of stearic acid, 4.5 parts of anti-aging agent, 1.1 parts of sulfur, 1.4 parts of accelerator NS, 0.2 parts of anti-scorch agent CTP.

[0028] The lower crown rubber B needs to take into account both wear resistance and low heat generation. Generally, carbon black with a prefix of "2" such as carbon black N234 is used. The lower crown rubber B includes the follo...

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Abstract

The invention relates to a tire tread structure. The tire tread structure is characterized by comprising a crown and base glue, wherein the crown is composed of upper crown glue and lower crown glue; the thickness of the position, opposite to the base glue, of the base part of the base glue is relatively great. The crown structure is divided into upper and lower layers, wherein the glue heat generation problem is not considered for the upper layer, and glue with high wear resistance is adopted, so that the early-stage high wear resistance of a tire is guaranteed; the lower layer integrates wear resistance and low heat generation, wherein the wear resistance of the lower layer is a bit worse than that of the upper layer, the generated heat of the lower layer is lower than that of the upper layer, but a bit higher than that of the base glue or lower-layer glue, so that the generated heat also can be reduced while the wear resistance is guaranteed even the tire travels to the middle and later periods; the base glue or the lower-layer glue is unchanged and still adopts glue with low heat generation, so that the tire is guaranteed to not have the shoulder vacancy problem. The tire tread structure can radically reduce product tread groove bottom cracks caused by too thick or too thin base glue or the shoulder vacancy problem.

Description

technical field [0001] The invention relates to a tire tread structure, which belongs to the technical field of tires. Background technique [0002] There are usually two types of tread structure for all-steel radial tires, one is a crown and base rubber structure, and the other is a crown and lower rubber structure. No matter what kind of structure, there are two different formulas of rubber, that is, crown rubber formula and base rubber or lower layer rubber formula. The crown rubber formula has the characteristics of good wear resistance and tear resistance, while the base rubber or lower layer rubber has the characteristics of low heat generation. In the actual production process, the size of the crown rubber and the base rubber or the lower layer rubber cannot be completely produced according to the construction, and there will be more or less errors. If the base rubber or lower layer rubber is too thick, it will cause quality problems of tread groove bottom cracks; i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08K13/02C08K3/04C08K3/22C08K5/09C08K3/06B60C1/00
CPCB60C1/0016C08K3/04C08K3/06C08K3/22C08K5/09C08K13/02C08K2003/2296C08L7/00C08L2205/03C08L9/00C08L75/04C08K3/36C08L87/00
Inventor 崔玉叶
Owner JIANGSU GENERAL SCI TECH
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