List advantages and disadvantages of Injection molding.
[7 marks]Define Injection Molding. List parts of Injection molding machine.
[3 marks]Define : (i) Short shot (ii) Back pressure (iii) Suck back (iv) Plasticizing capacity
[4 marks]Explain in detail about Cooling Tower with neat sketch.
[7 marks]Define (i) Tonnage (ii ) Drooling ( iii ) Minimum Day light
[3 marks]Explain various stages in a Plunger type Injection moulding cycle.
[4 marks]List the auxiliaries required for Injection Molding Plant. Explain about Mold Temperature control.
[7 marks]Write down causes & remedies for : (i) Warpage (ii) Burn marks
[4 marks]Write the applications of Injection Molding.
[3 marks]Explain in brief about Plunger type machine.
[4 marks]Define Nozzle. List types of Nozzle. Explain any one with neat sketch.
[7 marks]Calculate the clamping tonnage required for product having area 100 cm2 and line pressure is 750 kg/cm2.
[3 marks]Compare: Hydraulic Clamping with Toggle Clamping.
[7 marks]Explain cavity pressure profile in Injection Moulding.
[4 marks]Draw line diagram of clamping side of single mono toggle.
[3 marks]Explain basic principle of screw conveying.
[4 marks]List start up, running and shut down procedure of Injection molding machine.
[7 marks]List the process variables of Injection molding.
[3 marks]Draw the General purpose screw for Injection molding of Thermoplastic and explain its each terminology.
[7 marks]What is pre drying? Which type of materials required pre drying before processing in Injection molding?
[3 marks]Draw the PVT diagram and explain it briefly.
[4 marks]Explain Thermoset injection molding process with diagram.
[7 marks]Compare: Injection molding of Thermoplastic with Injection molding of Thermoset.
[3 marks]Write a note on Vented barrel.
[4 marks]Compare between Hydraulic & Electrical drives
[7 marks]