Page 82 - 2019-11

橡塑技术与装备（橡胶） CHINA RUBBER/PLASTICS TECHNOLOGY AND EQUIPMENT (RUBBER)

图 20 #8 硫化程度历程 图 22 #10 硫化程度历程
效硫化程度时间差异较大缘于肩部硫化过程中胶料变
形和流动程度较冠部和胶芯部位略高，因此设计图和
成品轮胎断面图肩部差异比其他部位大，导致理想的
仿真有限元模型和实际成品胎的肩部结构差异，使得
仿真温度场和程度场与实验测试值大小关系不确定，
绝对值差较其余部位略高，但总体仿真误差最大值仍
控制在 4.8% 以内，说明肩部仿真值仍可准确反映实
际硫化历程。
一般地，仿真结果与实验对比误差在 10% 以内可
认仿真结果是有效和准确的，对比以上分析结果知，
本模型用于计算轮胎硫化过程中的温度和硫化程度结
果精度在允许误差范围内，可用此模型指导实际硫化
图 21 #10 硫化温度历程 工艺的优化设计。

Numerical simulation of tire vulcanization temperature field

1
2
1
Zhang Jinyun , Liu Xiaoying , Wang Bogang , Li Shangshuai , Tan Jing 2
1
(1.Triangle Tire Co. LTD., Weihai 264200, Shandong, China;
2.Beijing University of Chemical Technology, Beijing 100029 )
Abstract: The finite element model of vulcanization simulation was established. The thermal property
parameters and vulcanization kinetic parameters of the rubber were all measured values. It is the most likely
possibility to consider the structural characteristics of rubber and cord composites. The thermal conductivity
is orthogonal anisotropic model. The heat of reaction in the rubber vulcanization process is added to the
model. The finite element of the three-dimensional tire model uses hexahedron or pentahedral elements to
ensure the calculation accuracy of the model to the greatest extent. The simulation model is used to analyze
the simulated temperature field and the sulphide degree field. The history curve is highly consistent with the
experimental value. The maximum error of vulcanization time is 4.8%, indicating that the finite element model
can highly reflect the actual vulcanization process.
Key words: vulcanization policy; thermal properties; orthotropic; reaction heat
(R-03)

·36· 第 45 卷 第 11 期