Open mill rubber mixing process
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The three stages of rubber mixing: mainly consists of three stages:
1 raw rubber heating. The raw rubber that will be plasticized is re-refined on the machine, softened by heating, and blended with other polymers.
2 plus compounding agent. Generally, a softener, stearic acid, etc. are added first, and then a powder and carbon black are added (carbon black can also be separately mixed with a raw rubber as a masterbatch in advance). Sulfur is usually added at the end of the mixing, or after the rubber has been parked, during the second refining.
3 Mix evenly and the next piece. When all the ingredients have been added, continue to re-mix to evenly mix and then remove the film.
