Government Polytechnic 2010 Diploma in Hospital Management Design Fundamentals of Moulds - Question Paper

Q.1 (a) Design and draw sectional elevation and plan view of hand injection mold
for a hollow cylinder kind product. presume suitable dimensions.
14
Q.2
(a) describe parting surface. Sketch any 2 kinds of parting surface. 07
(b) Draw socket headed screw of M-10 size with necessary dimensions. 07
OR
(b) Differentiate integer method and insert-bolster method. 07
Q.3
(a) discuss positioning of guide pin with neat sketch. 07
(b) discuss positioning of gate with neat sketches. 07
OR
Q.3 (a) discuss subsurface gate or sprue gate with neat sketch. 07
(b) discuss balancing of runner with neat sketch. 07
Q.4
(a) Draw a neat sketch of ejector plate assembly. 07
(b) discuss stripper plate ejection with neat sketch. 07
OR
Q. four (a) Draw a neat sketch of sleeve ejection technique. 07
(b) Sketch any 4 ejection elements. 07
Q.5
(a) provide function of any 7 elements of 2 plate machine injection mold. 07
(b) Sketch any 2 designs for cooling core inserts. 07
OR
Q.5 (a) provide material of construction of any 7 elements of 2 plate machine
injection mold.
07
(b) Sketch any 2 design for cooling integer kind core plate. 07

Earning:   Approval pending.