Method for retreading tires

Abstract

The invention discloses a method for retreading tires. The method comprises the following steps: segmenting raw tires and taking out tire bodies and belted layers; selecting and polishing relative complete tire bodies and belted layers for later use; recombining the selected tire bodies with belted layers one to one, thereby forming tire bases; and then arranging an anti-explosion wire layer, a middle cushion rubber and a tire crown rubber on the belted layer of each tire base; and lastly, arranging side tire rubber on the tire bodies and then vulcanizing, thereby acquiring retreaded tires, wherein each anti-explosion wire layer is realized by the following steps of: selecting a single wire cord fabric line, winding the upper surfaces of the belted layers and tightly hooping a coil formed by the wire cord fabric line on the belted layers. According to the method, the source of the raw tires is wider than the source of cold retreaded raw tires in the prior art. The retreated tire has the advantages that the anti-explosion capability of the tire crown is strong, the deformation of the tire crown is small, the grounded area is large, the abrasive resistance of patterns is high, and the impact resistance and the anti-explosion capability of the retreaded tire are both greatly improved.

Description

technical field [0001] The invention relates to a method for retreading tires by using waste tires as raw materials. Background technique [0002] Since 2006, the amount of scrapped tires in my country has exceeded 1.5 million tons per year, and it has been increasing at a rate of 10% per year. In 2010, the production of waste tires in my country exceeded 200 million pieces, and a large number of waste tires provided sufficient raw materials for the development of waste tire recycling products in my country. At this stage, the retreading of waste tires is the main way suitable for the recycling of waste tires in my country. [0003] The domestic existing methods of using waste tires for tire retreading are all cold retreading, that is, the old tires with good carcass and belt layers are removed from the tread pattern, and then a new tread with a certain pattern is re-attached. Make it have a certain use value. Although the above method of tire retreading is relatively sim...

AI Technical Summary

Problems solved by technology

Although the above method of tire retreading is relatively simple to implement, due to the serious overloading of domestic tires, there are not many used tires with good carcass and belt plies among the eliminated old tires, and the above cold retreading technology requires selection of tires. Only old tires with good body and belt layers can be retreaded, which limits the scale development of the cold retreading industry to a large extent.

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