Download SGBAU B-Tech 7th Sem Poly Plast Polymer Processing I Question Paper

Download SGBAU (Sant Gadge Baba Amravati university) B-Tech/BE (Bachelor of Technology) 7th Sem Poly Plast Polymer Processing I Previous Question Paper

P. Pages : 2
Time : 'l?hrce Hours
B.chh. Seventh Scmcstcr (Polymer (Plastic) Technology) (CGS)
11134 : Polymer Processing - I : 7 PP 01
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Notes :
b)
2.
3. a)
b)
4. a)
b)
5. a)
b)
6.
7. a)
b)
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1 Answer three question from Section A and three question from Section B.
2 Due credit will be given to ncatness and adequate dimensions.
3. Diagrams and chemical equations should be given wherever necessary.
4 Discuss the reaction, mechanism wherever necessary.
5 Illustrate your answer necessary with the help of neat sketches.
SECTION - A
What do you mean by Injection molding? Explain with sketch, nomenclature ofinjcction
molding.
Explain Injection molding cycle.
OR
What is the principle of Injection moldmg?? Explain in detail Injection and clamping unit
of injection molding machine.
How will you judge the quality of injection moldcd product on the basis ofappcarance of
product.
Explain in detail feed system of I.M. machine.
OR
Explain in detail injection molding of llxcrmosctting materials.
What is the effect ol?matcrial properties on the quality of injection molding articles.
What do you mean by compression molding? Explain equipments used in compression
molding.
Explain compression molding cycle.
0R
Explain in detail.
a) Radiofrequency prcheater. b) SMC & DMC.
SECTION ? B
What do you mean by transfer molding? Explain in detail plunger transfer molding.
Compare compression molding with transfer molding.
OR
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13

8. a)
b)
9.? a)
b)
10.
11. a)
b)
12. a)
b)
Explain in detail feed system in transfer molding.
Explain in detail different materials used 111 ILM.
What do you mean by Into molding? Ex dlain in detail different machines used in it.
Explain in detail RIM.
OR
Explain in detail
i) Film casting. iii Lamination & it's types.
What do you mean by Iecycling? Explain different types of recycling.
Explain in detail biodegradaIion.
()R
What do you mean by recycling? Explain methods ofseparation of plastics.
Explain pyrolysis process.
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