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Which of the following equipment is used for controlling the temperature of polymer material in the extrusion process?

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in Casting-Forming-Welding II by (119k points)
Which of the following equipment is used for controlling the temperature of polymer material in the extrusion process?

(a) Thermo resister

(b) Thermometer

(c) Thermocouple

(d) Glass tube

I have been asked this question in an interview.

My enquiry is from Extrusion in Polymers in portion Moulding with Polymers of Casting-Forming-Welding II

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Best answer
Correct answer is (c) Thermocouple

The best explanation: In extrusion process, polymer material pellets are fed into an extruder by a hopper. Then the material is conveyed by a feeding screw and forced through a shaped die that converts polymer materials into continuous polymer products. Heating elements are placed on the barrel which soften and melt the polymer. The temperature of the polymer material is mainly controlled by thermocouples.

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