Design and Simulation Extrusion Mould (Polypropylene + Talc) -- 2

I need to design an extrusion mold or simulate a previous sketch for the manufacture of a solid polypropylene profile + Talc. I have the mold file in .step that needs to be modified to then make the mold. I have the percentage of plastic and talc and the properties of both materials that are previously pelletized. I would need help in the design of the mold, the piece should come out of the mold as uniform as possible (speed and temperature).