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Method for improving imbalance of tire and tire obtained by method

A static unbalance, tire technology, used in static/dynamic balance testing, machine/structural component testing, measuring devices, etc., can solve problems such as small tire effect, poor appearance, and unacceptable tire grinding methods. To achieve the effect of molding improvement

Active Publication Date: 2021-05-14
ZHONGCE RUBBER GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is very effective for tires with poor static imbalance, but less effective for tires with poor dynamic imbalance, and grinding the tread will cause poor appearance
As customers demand high-quality tires, the way of grinding tires is becoming less and less acceptable

Method used

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  • Method for improving imbalance of tire and tire obtained by method
  • Method for improving imbalance of tire and tire obtained by method
  • Method for improving imbalance of tire and tire obtained by method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0031] The technical solutions of the present invention will be further described below through specific implementation examples.

[0032] 1. Taking the 205 / 55R16 tire embryo as an example, the out-of-roundness test is carried out first, and the first harmonic low point of the radial out-of-roundness measured is (6,70°). The known rubber strip W: 6cm, ρ: 1.25 g / cm 3 , t: 0.15cm, the corresponding mass of the first harmonic m: 2g / mm, according to the data, the rubber strip at 70 degrees of the tread is calculated as follows:

[0033]

[0034] After the rubber strip is applied, the out-of-roundness of the embryo is tested. The test result (3,65°) shows that the first harmonic of the out-of-roundness of the embryo decreases. Finally, the static imbalance of the tire is detected after the embryo is vulcanized. The measurement result shows that it is 5g, and the average static unbalance of this specification is 15g, which is 10g lower than the average value.

[0035] 2. The ou...

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Abstract

The invention belongs to the field of tires, and particularly relates to a method for improving tire imbalance and a tire obtained through the method. The method for improving tire imbalance comprises one or two of the following steps: step 1, performing out-of-roundness detection on a tire blank, and repairing the static imbalance of the tire according to the out-of-roundness detection result of the tire blank; and 2, performing tire blank unbalance detection through the tire blank, and repairing the dynamic unbalance of the tire according to a tire blank unbalance detection result. The method is used for realizing tire imbalance through tire blank detection and repair in the tire manufacturing process.

Description

technical field [0001] The invention belongs to the field of tires, and in particular relates to a method for improving tire imbalance and tires obtained by the method. Background technique [0002] The present invention relates to a method for the manufacture of tyres, and more particularly to improving the unbalanced mass of the tire by compensating the unbalanced mass of the (unvulcanized) green tire. Tire imbalance can be divided into static imbalance and dynamic imbalance. In recent years, with the continuous improvement of road conditions and the improvement of vehicle performance, users' requirements for comfort have also been continuously improved. A large number of studies have shown that part of the up and down vibration of the vehicle at 80-90km / h is due to poor static balance of the tires. The car body or the square disc vibrates from side to side near 35km / h because of poor dynamic balance of the tires. For these reasons, tire manufacturers strive to keep tir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/32
CPCG01M1/326
Inventor 李增平徐任春吕剑张文清陈高琪
Owner ZHONGCE RUBBER GRP CO LTD