氟橡胶O形密封圈预成型优化因素分析

Analysis of optimization factors for preforming fluororubber O-ring seals

本文对FX-17氟橡胶O形密封圈成型过程中坯料软化、坯料薄通、坯料圈成型等预成型工艺控制与优化进行了分析。试验表明,在氟橡胶一段硫化和二段硫化参数一定的情况下,通过对O形密封圈预成型工艺参数优化,预成型前后橡胶O形密封圈内径、线径、拉伸强度等成型质量和性能波动均降低,预成型工艺优化后可以减少氟橡胶O形密封圈尺寸和拉伸强度波动,能够提升氟橡胶O形密封圈加工成型质量和性能。

This article analyzes the control and optimization of preform processes such as parison softening,parison thinning,and parison ring forming during the forming process of FX-17 fluororubber O-ring.Experiments have shown that,under constant parameters for the first and second stage vulcanization of fluororubber,by optimizing the preforming process parameters for O-ring seals,the quality and performance fluctuations of rubber O-ring seals,such as inner diameter,wire diameter,and tensile strength,are reduced before and after preforming.After optimizing the preform process,the size and tensile strength fluctuations of fluororubber O-ring seals can be reduced,which can improve the processing and forming quality and performance of fluororubber O-ring seals.