Abrasion-resistant base compound for solid tyres of crane cars

Abstract

The invention belongs to the technical field of rubber production, and particularly relates to an abrasion-resistant base compound for solid tyres of crane cars. The abrasion-resistant base compound for the solid tyres of the crane cars comprises raw materials in parts by weight as follows: natural rubber, liquid polybutadiene rubber, carbon black N234, white carbon black, a silicon coupling agent, poly-2,3,4-trimethyl-1,2-dihydroquinoline, N-(1,3-dimethyl)-N'-phenyl-p-phenylenediamine, zinc oxide, zinc stearate, N-tert-butylbenzothiazole-2-sulfenamide, tetramethyl-thiuram sulfide, sulfur, N-cyclohexylthiophthalimide and polyamide fibers. The base compound has the higher modulus and the good abrasion resistance, and meanwhile, the base compound is better in reversion resistance and low in hysteresis loss.

Description

Technical field [0001] The invention belongs to the technical field of rubber production, and particularly relates to a wear-resistant base rubber used for solid tires of crane vehicles. Background technique [0002] The solid tires of crane trucks require low rolling resistance, in order to ensure that the speed and working time of the vehicle reach the maximum limit, although the tire tread shape, crown radius, tread design and tread thickness are very important to obtain these properties. It’s a big deal, but to get the best results, you must use a suitable rubber formula. Lifting vehicles are often overloaded in use, which leads to increased deformation and creep of the tire. As the deformation and creep increase, the rolling resistance of the tire will also increase, and the result is the speed of the vehicle. Reduce, accelerate energy consumption. Although the high modulus compound with better reinforcement performance can be obtained by selecting the appropriate carbon b...

AI Technical Summary

Problems solved by technology

Crane trucks are often overloaded during use, which leads to increased deformation and creep of the tires. With the increase of deformation and creep, the rolling resistance of the tires will also increase. As a result, the speed of the vehicle will increase. Reduced, energy consumption accelerated

Although the high-modulus rubber compound with better reinforcing performance can be obtained by selecting the appropriate carbon black variety and dosage, and the deformation of the tire can be reduced at the same time, but the increase in hysteresis loss will also affect the rolling resistance. Therefore, it is necessary to use high modulus and low To strike a balance between hysteresis loss, solid tires must also have good wear and tear resistance

[0003] Solid tires need a longer vulcanization time to ensure that the central part of the tread rubber reaches the ideal degree of vulcanization. This long-term vulcanization has a great impact on the performance of the tire, which will cause over-vulcanization on the surface of the tread and a certain depth in the lower part of the tread. , although vulcanization reversion usually does not significantly decrease the surface hardness during inspection, but during the use of the tire, that is, under dynamic conditions, the rapid decrease in hardness and modulus will lead to accelerated wear, increased rolling resistance and increased heat generation, while heat generation It will further reduce the modulus and hardness