What does tire vulcanization mean?

Tire vulcanization refers to the vulcanization of outer tires, which is carried out by means of model pressurization.

The internal microstructure of tire before vulcanization is linear polymer, which is a kind of viscoelastic plastic rubber with easy deformation, low strength and no use value.

Through vulcanization, the linear polymers in plastic rubber cross-link to form reticular polymer materials, which are cured macroscopically and become high elastic rubber with use value.

Characterized in that the outer diameter of the formed tire blank is smaller than the inner diameter of the model. During vulcanization, the green tire is filled with water tires or capsules, high-pressure hot water is injected into the water tires, and the green tire is filled with the model by using the expansion pressure of the water tires or capsules. Tire vulcanization adopts the methods of gradual heating and long-term low-temperature vulcanization, so that the rubber can fully flow and transfer heat and ensure the vulcanization quality. There are two kinds of tire curing equipment: one is vertical curing, which can hold ten tire molds of different specifications at a time, and the hydraulic column at the bottom is cold and filled with direct steam to cure tires. The disadvantage is that the advantage of manual bath is that it can produce different specifications at any time, and it is only used to vulcanize large tires at present; Second, the setting vulcanizer used in general can pressing, especially the dual-mode automatic hydraulic vulcanizer, has the advantages of simple operation, low labor intensity, high production efficiency, high level of white mouth control and good product quality.