Renewing preparation method for radial tire steel wire cord layer fracture

Abstract

The invention relates to the repair of a tire, in particular to a method for retreading and preparing the broken retread of the steel cord layer of a radial ply tire, which is characterized in that: recombination is carried out to carcass compound 4 is brushed on the polished coarse and cottony pitting surface of the tire body 1 in the first step; heads and ends of an Alpha angle and Alpha 1 of the first steel cord layer 2 are connected with each other to complete a bonding of the steel cord layer 2; the steel cord layer 2 is pressed layer by layer; each two steel cord layers 2 are bonded with each other by middle glue 3. The method has the advantages of simple operation, low cost, waste utilization and energy saving, can raise the utilization rate of the used tire by from 10 percent to above 20 percent, raise the service life of the retread from original 70 percent of the new tire to above 90 percent and save the energy consumption by 30 percent and the utilized materials are only 20 to 30 percent of the new tire. The cost is not increased on the basis of the original retread. The price for using the retread can be saved by above 50 percent compared with the price of the new tire.

Description

Technical field: [0001] The invention relates to tire repair, in particular to a preparation method for retreading a radial tire with a broken steel cord layer. Background technique: [0002] Tires are an important part of motor vehicles and are vulnerable parts. Among the waste tires, and the performance of the carcass meets the national motor vehicle safety technical conditions, it can be used for retreading tires. According to the national professional standards for retreaded and repaired tires (radial tires), the remaining pattern of the measurement point of the retreaded carcass tread of Class A shall not be less than 2MM, and the local wear shall not damage the belt layer, and the remaining pattern of the measurement point of the retreaded carcass tread of Class B It is close to grinding, and the belt layer is partially worn to allow one layer. The tire is an important part of the car to bear gravity, transmit traction, braking force, steering force and bear the react...

AI Technical Summary

Problems solved by technology

According to the national professional standards for retreaded and repaired tires (radial tires), the remaining pattern of the measurement point of the retreaded carcass tread of Class A is not less than 2MM, and the local wear shall not damage the belt layer, and the remaining pattern of the measurement point of the retreaded carcass tread of Class B Close to grinding, the belt layer is partially worn and one layer is allowed. The tire is an important part of the car to bear gravity, transmit traction, braking force, steering force and bear the reaction force of the road surface. During use, affected by the above factors, the tire's The damage is reflected in the serious wear of the tread, causing the steel cord layer to break more than one layer, causing the tire to lose its use value as a whole, and other good parts also lose their original use value. Only 10% of the tires

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