Download SGBAU B-Tech 8th Sem Poly Plast Mould Design For Plastics Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 8th Sem Poly Plast Mould Design For Plastics Previous Question Paper

B.Tech. Eighth Semester (Polymer (Plastics) Technology) (CGS)
11150 : Mould Design for Plastics : 8 PP 04
71"??3? 2 nmmmmmmm AW ? 35??
[mm 2 Four Hours . 0? 8 l 9 . Max. Marks : 80
Notes : 1 Answer three question from Section A and three question from Section B.
2 Due credit will be given to neatness and adequate dimensions.
3 Assume suitable data wherever necessary.
4. Diagrams and chemical equations should be given wherever necessary.
5 Illustrate your answer necessary with the help of neat sketches.
6 Discuss the reaction. mechanism wherever necessary.
7 Use of pen Blue/Black inldre?ll only for writing the answer book.
SECTION ? A
1. a) Explain pressure casting technique of mould making in detail. 7
b) What do you mean by Mould? Give its working & signi?cance. 6
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2. a) What are the various types of materials used in making & construction of mould? 5
b) Describe cold bobbing process ofmaking various parts. with the help of neat sketch. 8
3. a) Explain with design sprue, having different type of design to suit the modified mould 7
design.
b) Draw & discuss how Single-Day light & Multi-Day light works? 6
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4. a) De?ne term Bolster? Discuss it's various type with help of neat sketch. 6
b) Describe Integer method of making cavity/core plate with the use of local inserts? 7
5. a) Why Ejection system design is to be considered while design of mould? Explain its 7
various technique of ejection.
b) Explain the importance of cooling systems in injection mould? Discuss its various type in 7
detail.
OR
6. How will you detemiine most Economical number of cavities for an injection mould? 14
SECTION - B
7. :1) Explain the calibrating devices used in pipe manufacturing process. 5
AW - 3509 l P.T.0

10.
ll.
12.
b)
a)
b)
Discuss in detail about 3011. :
i) T die ii) Coat hanger dic
Used for ?hcct cxtx'usion process.
()R
Slate the fundamental dssign s.spects tor tape die and pro?le die.
Write basic design aspects ot'gear & lweuring for extrusion.
Explain in detail standard components ol'cnmprcssion mould with its typical design.
Discuss the factors considered while dcsigvnlng runner systems for compression mould.
OR
Explain working principle 01' positive. scmi?positive & Flash type ofmould. with its
design features.
Explain with the help of neat sketch 1005c plate type transfer mould.
Which factors are considered whit dcsiyxing Irunst'cr mould
0R
Explain the following in detail: -
i) V:nts
ii) C umping force
iii) Tl'ansfcrprcssure
:hk?hkink-kitick'ki:
AW - 3509 2
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