extruder
Quick Summary
An extruder is a machine that shapes material by forcing it through a specially designed opening, or die. This process, known as extrusion, is used for both metals and plastics.123
In extrusion, a material, often heated to a molten or pliable state, is continuously pushed through a die to create a continuous shape with a constant cross-section. This can produce simple forms like rods, pipes, and bars, or more complex profiles such as film, sheet, tubing, and insulation. For plastics, this process allows for efficient, continuous production of items like grocery bags, food containers, and home siding. Aluminum is a metal that is easily extruded.23
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