Method for measuring cord arrangement stability of tire fiber cord fabric after electron irradiation

Abstract

The invention belongs to the field of rubber tires and chemical manufacturing, and particularly relates to a method for measuring the cord arrangement stability of a tire fiber cord fabric after electron irradiation. The method comprises the following steps: 1) acquiring a plurality of finished tire section slices, and cutting the section slices along the maximum deflection part of the tire shoulder part; 2) measuring the thickness of the section within a selected measurement range by using a high-power magnifier; and 3) taking the highest point and the lowest point of the cord threads arranged in the measurement range, respectively making horizontal lines passing through the highest point and the lowest point, and taking the distance L between the two horizontal lines as a quantitative value of the cord thread arrangement stability for representing the degree of the cord thread arrangement stability. According to the invention, visual evaluation is improved to quantifiable evaluation,the tire cord arrangement stability is represented by the cord position change L, the measurement result is convenient to analyze, the measurement result is more accurate, and the measurement efficiency is higher.

Description

technical field [0001] This application belongs to the fields of rubber tires and chemical manufacturing. In particular, it relates to a method for measuring the stability of cord arrangement of tire fiber cords after electron irradiation. Background technique [0002] The following prior application: Application No. 201810964065.6, titled "A method for changing the performance of rubber-coated cords by electron irradiation", which discloses the addition of electron irradiation devices on the production line of fiber cords for semi-steel radial tires, and the use of electron rays accelerated in a high-voltage electric field Irradiate the fiber cord to trigger a chemical reaction to improve the performance of the fiber cord and increase the stability and blocking force of the rubber cord. The first function is to stabilize the cord covering glue and the cord arrangement is more stable; the second function is to block the airtight layer The compound (typically butyl or halobu...

AI Technical Summary

Problems solved by technology

However, in the prior art, the stability of tire cord arrangement is based on visual evaluation, lack of quantitative standards, and the measurement accuracy is poor

Images