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How are extruded materials cooled?(a) Water(b) Contact with chilled surface(c) Air(d) OilI had been asked this question during an interview for a job.The above asked question is from Extrusion in Polymers topic in section Moulding with Polymers of Casting-Forming-Welding II

Answer»

Right ANSWER is (d) Oil

To explain I would say: On completion of EXTRUSION, the material is very hot and has to be cooled down. There are various agents which are used cooling these MATERIALS down, such as, air or WATER or its direct contact with a very cold SURFACE.



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