Expert advice: how to tune extruder barrel temperatures.This is the first of two articles in this issue by well known extrusion experts who answer a question that faces many processors: "How do I set my barrel-temperature profiles?" These experts offer advice on how to optimize optimize - optimisation temperature profiles in single-screw extruders, including large extruders and barrier screws. In this first article, Chris CHRIS Chemical Hazards Response Information System (US DoD) CHRIS California Historical Resources Information System CHRIS Computerized Human Resources Information System CHRIS Command Human Resources Intelligence System Rauwendaal of Rauwendaal Extrusion Engineering Inc. decribes three methods for determining optimum barrel-temperature setpoints: Design of Experiments (DOE), One-at-a-Time Experiments (OTE OTE Chiefly Brit (esp. in job adverts) on target earnings: the minimum amount of money a salesman is expected to make OTE abbr (Comm) (= on-target earnings) → Einkommensziel nt ), and Dynamic Optimization optimization Field of applied mathematics whose principles and methods are used to solve quantitative problems in disciplines including physics, biology, engineering, and economics. , which is the fastest and least expensive, especially for large machines. In the second article, Timothy W. Womer, chief technical officer at Xaloy Inc., describes his methods of determining optimum barrel temperatures for extruders with barrier screws, which create more complex pressure profiles. With such screws, temperatures below the optimum tend to increase screw screw, simple machine consisting essentially of a solid cylinder, usually of metal, around which an inclined plane winds spirally, either clockwise or counterclockwise. and barrel wear. Edited by Jan H. Schut |
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