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Parameter estimation for roller compaction process using an instrumented vector TF mini roller compactor

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Utilizing instrumented roll technology, statistical models were constructed to establish relationships between process parameters—such as hydraulic pressure, roll speed, and screw speed of the Vector TF mini roller compactor—and ribbon normal stress and density for placebo blends. The normal stress was determined to have a direct proportionality to hydraulic pressure and roll speed, while exhibiting an inverse relationship with the screw-to-roll speed ratio. Additionally, a power-law correlation between ribbon density and normal stress was identified for placebo blends. The developed models for placebo blends demonstrated accurate predictions of ribbon densities for active blends. These models offer a valuable tool for predicting initial instrument settings necessary to achieve a ribbon with the desired solid fraction during the early stages of development, where material availability and time constraints are significant factors.
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