What is Injection Molding Process.? Explain its advantages and limitations.
[3 marks]Explain about Injection Molding Cycle with its Estimation in brief.
[4 marks]Compare: Reciprocating Screw Machine with Plunger injection molding Machine.
[7 marks]Explain the importance of Hopper throat cooling.
[3 marks]What is Nitriding? Why is it required for screw and barrel?
[4 marks]Draw neat sketch of Injection molding screw with its various terminologies.
[7 marks]List the types of Nozzles and Explain the Nylon Nozzle with a neat sketch.
[7 marks]State the Melt Mechanism of Injection Molding Screw.
[3 marks]What is Injection End specifications for an injection molding machine?
[4 marks]Explain about PVT profile in Injection molding machine.
[7 marks]Compare the Hydraulic & Toggle system for clamping.
[3 marks]What is Channel depth of screw and its effect on molding process.?
[4 marks]Explain about Cavity pressure profile in Injection molding.
[7 marks]Give short note on Back Pressure and Injection Shot capacity.
[3 marks]Describe Injection molding machine Start up and Shutdown procedure,
[4 marks]Explain the various types of Thermocouples with their functions.
[7 marks]What do you mean by Purging? Describe with its significance.
[3 marks]Explain Mold Temperature Regulators with its importance.
[4 marks]Write a full note on Thermoset injection molding technique.
[7 marks]Give the functions and importance of Hopper loader.
[3 marks]Describe the Screw Tip Assembly with neat sketch.
[4 marks]Write a note on Pre-drying of material with neat sketch of used Equipment.
[7 marks]Explain the various Process Variables in injection molding Process.
[3 marks]Short note: Material consideration for Injection molding process.
[4 marks]Give causes and remedies of the following defects: (1) Silver steaks (2) Warpage (3) Shrinkage (4) Bubbles & Voids (5) Sink mark (6) Shorts (7) Weld Line
[7 marks]