Production technique of run-flat tire resistant to deflation caused by puncturing

Abstract

The invention relates to a production technique of a run-flat tire resistant to deflation caused by puncturing. The run-flat tire comprises a tire body. The production technique comprises the following steps: (1) preparing a liquid adhesive; (2) carrying out atomized spraying by spraying the adhesive on the cleaned inner surface of the tire body uniformly with a sprayer; (3) heating the coating to dryness for shape-fixing; and (4) repeating step (2) and step (3) for a plurality of times until a tire inner coating with a thickness between 0.2 and 10 mm is formed. The technique employs liquid raw material, atomized technology, spray flow control, and drying for shape-fixing. The technique is suitable for producing different models of run-flat tires, which are resistant to deflation caused by puncturing, to satisfy the needs of different users. The technique is characterized by high driving efficiency and safety performance, small tire balancing bias, and a uniform, thin, light inner coating with good heat sink performance and thermal stability, etc.

Description

technical field [0001] The invention relates to a tire, in particular to a production process for puncturing a leak-proof flat safety tire. Background technique [0002] With the rapid development of the automobile industry and the improvement of the traffic road network, improving the performance of motor vehicle tires and developing safe, durable, high-speed and low-cost products have become one of the important research projects of the current scientific research and production departments. According to incomplete statistics from relevant professional organizations, more than 95% of automobile tires have potential safety hazards, 60% of tires have abnormal tire pressure, more than 37% of tire crowns have nails or stab wounds, and 70% of traffic accidents on domestic expressways are caused by tires. Caused by hidden dangers, the death rate of a tire blowout accident is as high as 100% when the automobile travels above the speed of 120km / h. High-speed tire blowout, speedin...

AI Technical Summary

Problems solved by technology

Although this structural tire can guarantee a certain safety performance, its weight increases significantly, the manufacturing process is more cumbersome, and the manufacturing cost is higher.

[0005] Existing safety tire, although technically certain improvement has been arranged, with reference to figure 1 , the inner surface of the carcass 1 of the tire is provided with a coating 2, but from the perspective of technical performance, there are mainly the following defects: (1) The uniformity of the coating thickness cannot be guaranteed, and the thickness of the coating edge and middle is not uniform The existing process often uses centrifugal force to distribute the coating on the inner surface of the tire. This process is easy to cause the phenomenon that the middle is thick and the sides are thin; sometimes the middle thickness has reached 10-15mm, while the thickness of the two sides is only 1- 2 mm phenomenon; (2) The temperature resistance of the coating is limited, the applicable temperature range is small, and the application is limited by the region; (3) The unevenness of the coating leads to poor dynamic balance of the car body, reducing the Poor noise and poor comfort; (4) Large amount of glue used, thick coating, poor heat dissipation; (5) Poor adhesion of tire inner coating, relatively short service life of tires, unable to meet the needs of high-speed driving of vehicles; ( 6) The scope of application is narrow, and the number of product specifications is limited, which cannot meet the needs of various users

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