For the process shown in the schematic below, which of the statements is/are incorrect? Feed hopper Feed hopper Mold cavity Mold Nozzle Spreader Heating chamber Ram Hydraulic pressure Plastic pellets Turning screw Barrel Heaters Shaping die Molten plastic Extrudate Tubing and pipes Sheet and film Structural parts Select one or more: O a. The feedstock has to be molten or liquid monomer, the temperature of which will constantly be held above the melting temperature O b. The process can only work with thermoplastics and not with thermosets due to the thermal processing requirements O c. This process is best suited for the large volume production of tubes, bars and beams due to the nature of the extrusion process Od. The mould cavity region is usually temperature controlled so that at the point of injection it is heated and then gradually cooled down until the

For the process shown in the schematic below, which of the statements is/are incorrect? Feed hopper Feed hopper Mold cavity Mold Nozzle Spreader Heating chamber Ram Hydraulic pressure Plastic pellets Turning screw Barrel Heaters Shaping die Molten plastic Extrudate Tubing and pipes Sheet and film Structural parts Select one or more: O a. The feedstock has to be molten or liquid monomer, the temperature of which will constantly be held above the melting temperature O b. The process can only work with thermoplastics and not with thermosets due to the thermal processing requirements O c. This process is best suited for the large volume production of tubes, bars and beams due to the nature of the extrusion process Od. The mould cavity region is usually temperature controlled so that at the point of injection it is heated and then gradually cooled down until the

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.

Question

For the process shown in the schematic below, which of the statements is/are incorrect?
Feed hopper
Feed hopper
Mold
cavity
Mold Nozzle
K
Spreader
XXX
Heating chamber
Ram
Hydraulic
pressure
Plastic pellets
Turning screw Barrel
Heaters
Shaping die
Molten plastic Extrudate
Tubing and pipes
Sheet and film
Structural parts
Select one or more:
O a. The feedstock has to be molten or liquid monomer, the temperature of which will constantly be held above the melting temperature
O b. The process can only work with thermoplastics and not with thermosets due to the thermal processing requirements
O c.
This process is best suited for the large volume production of tubes, bars and beams due to the nature of the extrusion process
Od.
The mould cavity region is usually temperature controlled so that at the point of injection it is heated and then gradually cooled down until the
part is released
O e. To release the part, the process typically involves the mould sections opening and the ejector pins pushing the object out of the mould

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