Extrusionsmenge

Extrusionsmenge, literally the amount of extrusion, is a process parameter in extrusion technology that describes the quantity of material that exits through a die in a given time. It is commonly expressed as a mass flow rate (for example kilograms per second) or, less frequently, as a volume flow rate. The term is used across industries that rely on extrusion, including plastics processing, metals, food production, and ceramics, to quantify throughput at the die exit and to support process control and product specification.

In practice, Extrusionsmenge is influenced by factors such as screw speed, melt temperature, die geometry, and material characteristics like viscosity and density. The backpressure inside the extruder and the residence time of the material also play a role. Because of these dependencies, maintaining a consistent Extrusionsmenge is a central objective of process control, affecting product weight, density, dimensional tolerances, and mechanical properties.

Measurement and control methods include gravimetric flow sensing, inline mass flow meters, or volumetric flow measurements, often combined with process models that relate screw speed and temperature to the expected extrusion rate. Variations in Extrusionsmenge can indicate tool wear, material inconsistency, or temperature control issues, potentially leading to defects such as under- or over-extrusion.

Overall, Extrusionsmenge is a fundamental metric for evaluating and adjusting the throughput of extrusion processes, with direct implications for efficiency, quality, and cost.