Rubber composition for upper support of automobile shock absorber

Abstract

The invention discloses a rubber composition for an upper support of an automobile shock absorber. The rubber composition is prepared from the following components: 70 to 85 parts of natural rubber, 15 to 30 parts of butadiene rubber, 2 to 3.5 parts of amine antiagers, 1 to 2 parts of quinoline dihydride antiagers, 2.5 to 3.5 parts of physical antiager, 11 to 15 parts of activating agent, 3 to 5 parts of coupling agent, 40 to 65 parts of reinforcing agent, 4 to 8 parts of plasticizer, 1.5 to 2.5 parts of vulcanizing agent and 1.8 to 3 parts of accelerant. The rubber composition for the upper support of the automobile shock absorber, provided by the invention, has the advantages of excellent properties of high temperature resistance and heat resistance, as well as small physical property change, high strength retaining rate and good high-temperature compression permanent deformation of aged rubber. The produced upper support of the automobile shock absorber has excellent high-temperature creepage and dynamic fatigue property, is in a leading level of the industry, and obtains the approval of domestic and foreign customers.

Description

technical field [0001] The invention relates to a rubber composition for supporting the upper support of the automobile shock absorber, which is used for making the upper support of the shock absorber of the automobile chassis, and belongs to the technical field of rubber. Background technique [0002] The automobile chassis shock absorber is mainly used to suppress the shock when the spring rebounds after absorbing the shock and the impact from the road surface. In this state, the chassis wheel is the vibration source, and the vibration generated by the road surface and the wheel is reduced by using the rubber damping function to prevent the vibration from passing through. The chassis is transferred to the body. The upper support of the shock absorber is to support and install the automobile engine and its various components and assemblies to form the overall shape of the automobile. Ease the impact of uneven roads on the body, attenuate the vibration of the car during dri...

AI Technical Summary

Problems solved by technology

Because the upper support of the front shock absorber is close to the engine and the cab, it has higher requirements for shock absorption comfort and fatigue life, but it is often difficult to balance it at the same time

At present, domestic shock absorbers are prone to abnormal noise. The main reason is that the rubber aging, creep and performance attenuation of the upper support during use cause a gap between the rubber and the retainer.

The more serious situation is that the upper support rubber breaks, causing the shock absorber to fail, and there is a great potential safety hazard

Due to the upper support problem, the entire shock absorber was replaced, resulting in huge cost losses, and also caused waste of rubber and metal materials, affecting environmental resources

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