All-steel load-bearing radial tire belt rubber

Abstract

The invention relates to an all-steel load-bearing radial tire belt rubber which is prepared from the following raw materials in parts by weight: 86-114 parts of natural rubber SMR20, 30-55 parts of carbon black N375, 7-13 parts of white carbon black, 5-11 parts of indirect zinc oxide, 1.3-3.7 parts of anti-aging agent 4020, 1.16-2.6 parts of bonding resin PN760, 0.8-1.6 parts of cobalt salt, 2.5-7.5 parts of adhesive RA65, 0.4-1 part of accelerator NOBS, 0.3-0.9 part of accelerator NS, 3-8 parts of insoluble sulfur OT-20 and 0.09-0.21 part of anti-scorching agent CTP. The scorching time is prolonged by 10%, the phenomenon of waste of rubber is reduced, and the adhesive force between the rubber and steel wires is enhanced by 10% or above. On the premise of ensuring the safety performance of the tire, the average service life of the tire is prolonged from 4-5 months to 7-8 months, and the number of remolds of the tire is doubled.

Description

technical field [0001] The invention relates to an all-steel engineering machinery tire, in particular to a belt rubber of an all-steel load-carrying radial tire, which belongs to the technical field of rubber. Background technique [0002] Tires are important safety components of automobiles, and the tire industry is one of the important areas of national economic development. For a long time, tire production has been organized according to national standards, guiding the industry to a healthy and stable development path. In recent years, the tire industry has experienced a trend of over-investment, low-level redundant construction, and blind expansion of production capacity, while high-performance, environmentally friendly and green tires have no standards to follow. In 2014, my country's tire industry faced the slowdown of domestic economic growth, the decline in market demand, the prominent structural surplus of tire products, and frequent international trade frictions....

AI Technical Summary

Problems solved by technology

[0004] In order to promote the industrialization process of energy-saving, environmentally friendly and safe green tires in my country, and to speed up the quality upgrading and structural adjustment of tire products, the technical engineering team regards continuous improvement of product quality as their work goal. The core technology in the steel load-bearing technology. The belt adhesive bonding system in the original imported technology adopts m-methyl white bonding system. When free resorcinol volatilizes, there will be quality defects such as smoking and frosting, which will not only pollute the environment, but also endanger the health of operators; the belt rubber produced by using resorcin alone will cause the rubber and The adhesion between steel wires is low, and it is easy to have quality problems of finished tires, which will cause waste of rubber materials and increase the burden on the company.

Images