METHOD AND DEVICE FOR MIXING RUBBER COMPOSITION

摘要

PROBLEM TO BE SOLVED: To provide a method and a device for mixing a rubber composition that achieve a rubber composition which is stable in quality and stable in physical properties such as viscosity and modulus in mixing of a rubber composition and enable to provide rubber products having stable performance. SOLUTION: The method for mixing a rubber composition is configured to mix a rubber composition by executing the following processes through a plurality of steps when mixing a rubber composition while using an internal mixer, that is: a carbon incorporation process for incorporating carbon into rubber by pouring rubber and carbon into the mixer; and a uniform dispersion process for uniformly dispersing carbon. In the carbon incorporation process, it is configured to proceed to the next step after an integrated amount S of power for rotationally driving a mixing rotor reaches a set target integral power consumption S1. In the uniform dispersion step, it is configured to determine the target mixing time when the integrated amount S of power reaches a set target integral power consumption S4 and to adjust the rotational frequency R of the mixing rotor 2 to reduce the deviation between the target mixing time and a predicted value of the mixing time in the step. COPYRIGHT: (C)2011,JPO&INPIT