Production method for pneumatic tire

充气轮胎的制造方法

Abstract

In this production method for a pneumatic tire provided with an inner liner in the inside of the tire, the formation of a green tire comprises: an assembly process (a) in which the end of the inner liner in the width direction and the end of the unvulcanized rubber sheet in the width direction are both shifted along the width direction to be 50mm-500mm apart, then bonded to produce a laminated body; a cutting process (b) in which the laminated body is cut to be a certain length corresponding with the drum width, and a cut sheet is produced; and a joining process (c) in which the cut sheet is wrapped around the entire circumference of the drum so that the cut surface is aligned with the circumferential direction of the drum and the inner liner is on the interior-side, then the end of the inner liner and the end of the unvulcanized rubber sheet are joined so that the ends are positioned with a certain distance therebetween. The inner liner used in this production method is a composite layer comprising: a first layer, containing a styrene-isobutylene-styrene block copolymer and having a thickness of 0.05mm-0.6mm; and a second layer, positioned on the side of the unvulcanized rubber sheet, composed of a thermal plastic elastomer, and having a thickness of 0.01mm-0.3mm.
一种充气轮胎的制造方法,所述轮胎内侧具备内衬层,生胎的成型包括以下工序:(a)将内衬层的宽度方向的端部以及未硫化橡胶片的宽度方向的端部在宽度方向在相互错开50mm-500mm的范围内进行贴合,从而制造层积体的装配工序;(b)将所述层积体切割为与转鼓宽度相对应的固定长度,从而制造截断片的截断工序;(c)将所述截断片卷绕在所述转鼓的整个圆周上,使其截断面成为转鼓的圆周方向,并且内衬层成为里面侧,然后将内衬层的端部与未硫化橡胶片的端部位置错开固定的距离,进行接合的接合工序;所述内衬层是第一层和第二层的复合层,所述第一层包含苯乙烯-异丁烯-苯乙烯嵌段共聚物,其厚度为0.05mm-0.6mm,所述第二层被配置于未硫化橡胶片一侧,由热塑料弹性体形成,其厚度为0.01mm-0.3mm。

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