90/90-18高速无内胎摩托车轮胎的成型工艺设计

Molding Process Design of 90/90-18 Tubeless Tire for High Speed Motorcycle

介绍90/90-18高速无内胎摩托车轮胎的成型工艺设计。成型机头:半鼓式,直径490 mm,宽度180mm。施工设计:胎面采用一方一块结构;胎体帘布采用2层930dtex/2V_1锦纶帘布,缓冲层采用1层930dtex/2V_3锦纶帘布,胎体和缓冲层帘布裁断角度均为(36±0.5)°;气密层主体材料采用溴化丁基橡胶;胎圈采用单钢丝圈结构,钢丝圈排列方式为3×3,钢丝圈包布采用维纶帘布,胎圈包布采用维纶网眼帆布。采用该成型工艺制备的成品轮胎外观合格率高,各项性能达到指标要求。

The molding process of 90/90-18 tubeless tire for high-speed motorcycle was designed.The diameter and width of half drum forming head were 490 mm and 180 mm,respectively.One formula and one piece structure were used in the tire tread.Two layers of 930dtex/2V_1 nylon cord were applied in carcass ply and one layer of 930dtex/2V_3 nylon cord was applied in the breaker ply.The cutting angle was set at（36±0.5）°for the cord fabric in both carcass ply and breaker ply.Inner liner was made of bromobutyl rubber.The single steel wire structure was applied in bead with arrangement of 3×3.Vinylon cord fabric and mesh canvas were used in wire chafer and bead chafer,respectively.It was found that the tire appearance pass percentage using this molding process was high and the properties of the finished tire met product requirements.