Extrusion Instabilities or Variabilities

In extrusion, as in all other processes, an extensive theoretical analysis has been applied to facilitate understanding and maximize the manufacturing operation. However, the real world must be understood and appreciated as well. The operator has to work within the many limitations of the materials and equipment (the basic extruder and all auxiliary upstream and downstream equipment). The interplay and interchange of process controls can help to eliminate problems and/or aid operation with the variables that 

Finally one must check the proper alignment of the extruder and the downstream equipment. Proper alignment and isolation of the vibrators is a must for high-quality and high-speed output. 

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