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[Feilong Jiangli Edition]The main reasons for the damage of rubber parts used in automobiles are the oil leakage caused by the decline of the function of rubber parts. For example, due to the aging of the oil seal, the sealing function will be reduced, which will cause oil leakage and the dust cover can not be maintained to prevent dust invasion due to cracking and damage. In addition, due to the aging of rubber parts, it can not maintain the original performance. The antivibration glue of engine shock absorber and suspension button is a representative automobile rubber component. These rubber components will deteriorate the vibration performance due to the change of spring constant, which will further deteriorate the ride comfort of customers. It must be noted that the relative weight percentage of raw rubber, such as reinforcing agent, filler, antioxidant, vulcanizing accelerator, vulcanizing accelerator, vulcanizing agent and so on, has an effect on the properties of rubber components. Especially antioxidant, although its content is less than 1%, but its life of rubber components will also have a great impact.

In the fatigue and wear damage of the rubber parts mentioned above, there are physical aging phenomena caused by ordinary mechanical action and oxidation aging phenomena caused by environmental factors such as heat, light, oxygen and ozone. Especially for automotive rubber parts, most of them will be affected by thermal aging. The representative automobile parts, which are used as pyrogen, include engines, exhaust pipes and brakes. In addition, the bushing of the driving shaft will be damaged by the mechanical stretching action of the steering wheel and the interaction of ozone, which will cause stress concentration in the abdomen of the snake tube. At this time, the surface of the bushing will be cracked due to the influence of ozone. Only mechanical forces can damage rubber parts. For example, the engine anti vibration adhesive will be affected by the road and engine driving force. Therefore, the damage of rubber components is not affected by a single load, but often affected by a variety of loads.


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