Load-carrying diagonal tyre surface rubber

Abstract

A tread band of a truck bias tyre is characterized in that the utility model has the raw material compounding ratio by weight that: natural ebonite: cis-butadiene rubber is equal to 70:30, thereby effectively preventing the early rima of a pattern groove and improving the rubber composition extension rate and anti-tearing performance. The invention is applicable for the use of the truck bias tyre.

Description

Technical field: [0001] The invention relates to a tire tread rubber, in particular to a load bias tire tread rubber. Background technique: [0002] At present, due to the structural characteristics of bias-ply tires, the bias-ply tires produced in my country's tire industry have layers of carcass cords arranged in cross-layers, and nylon cords are used as buffer structures in the crown. The crown is soft and not rigid enough. After the middle part of the crown is inflated, it protrudes, and the repeated bending and deformation of the groove in the groove is large, which eventually leads to the crack of the groove. One of the main reasons is that the elongation and tear resistance of the tread rubber are poor. Invention content: [0003] The object of the present invention is to provide a tread compound for heavy-duty bias tires that can effectively prevent early cracking of pattern grooves and improve the elongation and tear resistance of the compound. [0004] The objec...

AI Technical Summary

Problems solved by technology

[0002] At present, due to the structural characteristics of bias-ply tires, the bias-ply tires produced in my country's tire industry, the carcass cords are arranged in layers, and the crown part uses nylon cords as a buffer structure. The crown is soft and not rigid enough.

The middle part of the crown protrudes after inflation, and the grooves in the grooves repeatedly flex and deform greatly, which eventually leads to groove cracks. One of the main reasons is that the rubber elongation and tear resistance of the tread rubber are poor