高温硫化无后充气聚酯轿车子午线轮胎的研制

Development of Polyester Car Tyre Cured at Elevated Temperature without Post cure Inflation

高温无后充气硫化需采用尺寸稳定型聚酯帘线作轮胎补强材料，硫化介质用饱和蒸汽代替过热水，当１８０℃×３０ｍｉｎ热收缩率为２％以内时，其成型施工机头宽度在人造丝基础上增加４—６ｍｍ。为防止胶料返原，合成橡胶用量由１５％—４０％增加到３０％—６０％。室内外试验结果表明，高温无后充气硫化轮胎外缘尺寸虽然膨胀率大于人造丝胎体，但完全可满足设计要求，且实际应用时断面膨大率仅为０６％—０７％。高温强制硫化工艺在不增加设备投资和生产费用的情况下。

The following measures should be taken when the car tyre is cured at the elevated temperature without post cure inflation:a DSP polyester is used as the reinforcement;b.the saturated steam is used as curing medium instead of superheated water;c.4—6mm should be added to the working width of the building drum for rayon as the thermal shrinkage at 180℃×30min is 