A drawing of the CMP shows a pair of gears with straight involute teeth rotating on melt-lubricated hydrodynamic bearings. Following 1.5 years of R&D, this manufacturer has come up with its own energy ...

The machine type, screw or rotor design, and processing parameters (e.g., screw or rotor speed, processing temperatures) play a crucial role in determining the level of degradation and the resulting ...

The screw conveyor has an extensive history. Archimedes (ca. 212 BC) invented the first screw conveyor, and his design is still used today for irrigation and grain transfer. Screw conveyors became ...

ExxonMobil, Milliken and Ravago have developed high-performance polypropylene (PP) compounds that incorporate recycled ...