Examination of tyre rubber cure by Weibull distribution functions

A statistical examination of tyre rubber cure based on Weibull distribution functions was conducted. It has been proven using Weibull distribution functions that there exist mixed modes in rubber resilience for a cure curve without reversion: viscous effect and cross-linking. It appears that a single 2-parameter Weibull distribution function is adequate to embrace the mixed modes associated with a non-reverted cure curve. The scale factor decreases, as the cure temperature is elevated higher. The probability density function of degree of cure is also explored. The higher the environmental temperature, the more coherent is the central tendency of cure rate. A quality vs. productivity chart is proposed as a practical approach to decision making on rubber cure.