【摘要】 探讨了SF－3硅氟硫化胶在热空气中老化时的物理机械性能变化和在热空气中和4109润滑油中老化时的压缩永久变形和压缩应力松弛性能变化，用压缩永久变形指标外推预测计算了标准室温贮存时的寿命方程，阐明了SF－3硅氟硫化胶的老化规律更多还原

【Abstract】 The change of Silicone-fluro Vulcanite phyical properties in hot air, its compression set and stress relaxation respectively in not air and 4109 lubricant was discussed. Its life equation in standard room temperature was estimated by the compression set, At the same time, its ageing regularity was stated, too.更多还原