Numerical analysis of the effect of temperature and its fluctuations on the vulcanization process of rubber seals
As a key process in the rubber sealing molding,vulcanization has a significant impact on the performance of rubber sealing products.However,the rubber industry often adopts empirical vulcanization molding methods,lacking understanding of the evolution of vulcanization,making it difficult to theoretically guide the actual production process of rubber seals.In response to this weak link that restricts the improvement of rubber sealing quality,the paper conducted numerical simulation research on the vulcanization molding process of rubber seals.A transient simulation model for thermal-chemical coupling of rubber products was established based on an integral reaction kinetics model and a heat transfer control equation with variable physical parameters.Real time prediction of the time-varying temperature field and vulcanization degree field during the rubber product forming process was achieved,and the correctness of the model and solution method was verified through experiments.Furthermore,the vulcanization process of typical structural seals was simulated and analyzed,and the influence of mold temperature,rubber preheating temperature and temperature fluctuation behavior on the rubber seal vulcanization molding process was discussed.Finally,suggestions and references were provided for the actual vulcanization production of rubber seals.
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