硫化后充气压力和时间对航空轮胎性能的影响  

Effect of Post-curing Inflation Pressure and Time on Performance of Aircraft Tire

作　　者：于祥钊 盛春敬 刘北江 YU Xiangzhao;SHENG Chunjing;LIU Beijiang(Qingdao Sentury Tire Co.,Ltd,Qingdao 266229,China)

机构地区：[1]青岛森麒麟轮胎股份有限公司,山东青岛266229

出　　处：《橡胶科技》2024年第1期41-44,共4页Rubber Science and Technology

摘　　要：选取27×7.7-15航空轮胎作为研究对象,研究硫化后充气压力和时间对航空轮胎性能的影响。分析胎体帘线张力与充气压力的关系以及帘线收缩率、收缩力与温度的关系,并通过热电偶测温法测量轮胎硫化后充气过程中温度随时间的变化情况,确定轮胎最小硫化后充气压力设为200 kPa,可以保证轮胎在胎体温度为160~170℃时出模胎体帘线不产生热收缩;硫化后充气时间设为1个硫化周期,可以保证轮胎冷却至环境温度。成品轮胎充气外缘尺寸及动态模拟试验验证了后充气压力和时间选取的合理性。In this study,the effects of post-curing inflation pressure and time on the performance of aircraft tires were investigated by taking a 27×7.7-15 aircraft tire as the research object.The relationship between the carcass cord tension and inflation pressure was analyzed,as well as the relationship between the cord shrinkage rate,shrinkage force and the temperature.Then,the temperature change over time during the tire post-curing inflation process was measured by using a thermocouple.It was found that the minimum post-curing inflation pressure of the tire was set at 200 kPa in order to ensure that the carcass cord did not produce any significant thermal shrinkage when the tire was demolded at the carcass temperature of 160~170℃.The post-curing inflation time was set at 1 vulcanization cycle in order to cool the tire down to the ambient temperature.The rationality of the selection of post-curing inflation pressure and time was verified through the confirmation of the inflated peripheral dimension and dynamic simulation test of the finished tire.

关 键 词：航空轮胎 帘线收缩力 帘线张力 胎体温度 硫化后充气压力和时间 动态模拟试验 

分 类 号：TQ336.1[化学工程—橡胶工业] TQ330.67