Tire capable of reducing cavity resonance and production method thereof

Abstract

The invention relates to the field of low-rolling-resistance tires, and discloses a tire capable of reducing cavity resonance sound and a production method thereof. The tire comprises a lining layer, a first belted layer and a second belted layer; when the tire is formed, a rubber composition is added into the lining layer; after the rubber composition is vulcanized, air holes with the porosity of 53%-74% can be formed, and the air holes are communicated with one another in a penetrating mode; the width W and the thickness H of the rubber composition meet the following relations: 0.5 W1B < W < W2B, H = 3mm, wherein the W1B is the width of the first belted layer, and W2B is the width of the second belted layer. According to the technical scheme, the process complexity is reduced, the risk that in the prior art, the sponge falls off due to the fact that the mute sponge is pasted in the finished tire is solved, and the long-lasting noise reduction effect is guaranteed.

Description

technical field [0001] The invention relates to the field of low rolling resistance tires, in particular to a tire capable of reducing cavity resonance sound and a production method thereof. Background technique [0002] In recent years, major automobile and tire manufacturers have gradually paid more attention to improving the driving comfort of vehicles. When the vehicle is running on the road, the tires will vibrate at different frequencies according to the unevenness of the road surface, which will cause the air inside the tire cavity to vibrate and produce cavity resonance sound. Generally speaking, there are obvious and sharp resonance peaks between 150 and 250 Hz in the cavity resonance sound inside the tire, which brings a very unpleasant feeling to the passengers in the car. Therefore, the reduction and control of noise in this frequency band is an important aspect to reduce vehicle driving noise and improve driving comfort. [0003] In order to effectively reduce...

AI Technical Summary

Problems solved by technology

The tires prepared by this method may have the risk of detachment between the noise reducer and the silicone adhesive or the silicone adhesive and the inner lining surface of the tire under long-term high-speed driving or winter driving conditions, thus failing to reduce noise technical effect, possibly even after the foam noise reducer falls off, because of the long-term friction with the inner surface of the tire or the risk of scorch of the noise reducer at high temperatures

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