What is Profile Extrusion

Profile extrusion is extrusion of a shaped product which can be many different configurations but will not include sheet or film products. Profile extrusion range from solid forms together with hollow forms. Products which range from tubing to windows frames to automobile door seals are crafted this way and considered account extrusion.

To process hollow shapes single screw extruders a mandrel or pin is utilized inside the die to form the hollow sections. Multiple hollow sections need multiple pins. To create these hollows a way to obtain air must permit the center of the merchandise to maintain shape and not collapse in vacuum pressure. Usually an air supply will be utilized to keep the appropriate airflow in the cavity.

If several materials are required to make something, the co-extrusion process can be used. For example, a bright white drinking straw that has 2 colors of stripes onto it, requires a total of 3 extruders. Each extruder feeds a diverse variation or material of the same material right into a central co-extrusion die.

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