An extruder typically consists of a hopper, barrel, screw, and die. The material, often in the form of a powder or slurry, is fed into the hopper and then moved through the barrel by the rotating screw. As the material is pushed forward, it is subjected to heat and pressure, which help to homogenize and compact it. Finally, the material is forced through a die, shaping it into the desired form. This process is especially useful for creating monolithic structures, cylindrical pellets, and other forms required in catalytic applications.
