Technique for producing tyre without inflation

Abstract

The invention relates to the tire production process. It puts elastic material into the inner tire mold in the temperature of 170-260deg.C, foaming, generating bubbles to form the inner tire, pressing in 190 deg.C-280deg.C shaping mold for 1-5 minutes to allow the surface forming into 0.3-3mm hard layer, applying glue at the outside wall of the inner tire in 20deg.C+-10deg.C resting for 150-300 mintues, applying buffer layer at the tire head of the inner tir, putting the mixed rubber into the extending machine through 130+-10deg.C shaped tire glue to form the outside tire, wrapping the circumference of the inner tire to form the tire blank, which is put into the sulfurated mold for sulfuration, then cooling to get the air-charging free tire.There isn't any friction between in and out tires, being air charging free, maintenance free, abrasion resistant, good in elasticity, durable, high in stretch, anti aging and simple and cheap.

Description

technical field [0001] The invention relates to a production process of a tire, in particular to a production process of an air-free tire. Background technique [0002] At present, most of the existing production techniques of air-free tires are to produce the outer tire of the tire first, and then use the outer tire of the tire as the main body to add fillers inside. The fillers added are various, and most of them have hollow cores Filler, such as Chinese patent 00241097.4 name: a kind of air-free tire, the tire includes an inner tube and an outer tire, through the valve of the inner tube of the tire, inject elastic filler into the inner tube, thereby obtaining a tire filled with inner tube and inner tube. A non-pneumatic tire synthesized by material and cover tire. The non-inflatable tire is a reprocessed structure on the basis of ordinary pneumatic tires. When in use, the inner tube and outer tire of the tire are still the traditional tire structure, because the inner tu...

AI Technical Summary

Problems solved by technology

The non-inflatable tire is a reprocessed structure on the basis of ordinary pneumatic tires. When in use, the inner tube and outer tire of the tire are still the traditional tire structure, because the inner tube does not have the pressure and friction of the pneumatic tire outer tube, resulting in The outer wall of the inner tube of the tire rubs against the inner wall of the outer tire, thus reducing the life of the tire

Such as: Chinese patent 200310101186, the name is the environment-friendly non-inflatable polyurethane tire, the polyurethane liquid material used for the tread and the carcass is centrifugally molded by pouring, and two or more rubber tubes are wrapped when pouring, especially the rubber tube wrapped inside the tire. In the case of pouring process, the contact area between the rubber tube walls is small, and the mutual bonding force is small. When the tire is running, the carcass is easily deformed after being pressed, and relative motion occurs between the rubber tubes, which consumes energy.

Another example is Chinese patent 00207542.3 with high-strength fiber rope or steel wire rope in the tire. This castable polyurethane foam material has a large permanent deformation, is easy to slide relative to the rim, has a low friction coefficient, and has a small grip on the ground. Sliding, large power loss

[0003] In summary, the non-pneumatic tires of the prior art have a low friction coefficient between the inner tube and the outer tire of the tire during use, are prone to mutual friction, have poor wear resistance, and have large power loss, making it difficult to achieve the proper physical and mechanical properties of the tire.