Plastics Processing detail TNDTE Diploma syllabus for Polymer Technology (PY), M scheme is extracted from TNDTE official website and presented for diploma students. The course code (37551), and for exam duration, Teaching Hr/week, Practical Hr/week, Total Marks, internal marks, theory marks, duration and credits do visit complete sem subjects post given below. The syllabus PDFs can be downloaded from official website.
For all other polymer 5th sem syllabus for diploma m scheme tndte you can visit Polymer 5th Sem Syllabus for Diploma M Scheme TNDTE Subjects. The detail syllabus for plastics processing is as follows.
Rationale:
Raw polymeric materials are converted into products by any one of the processing methods. It is, therefore, extremely necessary to have good understanding about the principles of processing and also different problems encountered during processing and to rectify the same to get good products in the processes.
This subject enables the students to apply the understanding of various processing techniques used in almost all polymer industries
Objectives:
On completion of the units of syllabus contents the students must be able to know about
- Compression moulding process and moulding cycle
- Principle of transfer moulding process and types of transfer moulding process
- Comparison of compression moulding process versus transfer moulding process.
- Principle of extrusion
- Applications of extruder process like tubular blow film extrusion, monolayer, multilayer, sheet extrusion, wire and cable covering and co-extrusion.
- Principles of injection moulding process
- Specification of injection moulding machine
- Knowledge of injection moulding for thermosets and RIM
- Principles of blow moulding process and the importance of parison programming
- Advantages and limitations of blow moulding process
- Principle of thermoforming and its advantages and limitations
- Process and materials involved in Rotational moulding process.
- Principles of calendering
- The concept of processing parameters, machine specifications and processing cycle of all the above processes.
- Different problems encountered during processing and rectifying the same to get good products in all the above processes.
- Knowledge about the secondary operations done on plastics products.
Unit 1
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Unit 2
Injection Moulding
Basic principles of injection moulding process – single stage – 2 stage screw machines – plunger type machine – reciprocating screw type machine – injection unit – barrel – types of barrel – nozzles – nozzle shut off valve – (any one) – heating system – band heaters etc., – clamping unit – clamp types – toggle system – hydraulic system – day light -clamping pressure – tie bar injection moulding process and control -screw control, clamping pressure control – process parameters -temperature, pressure – Injection rate – hold on time – specification of injection moulding machine – trouble-shooting – elementary knowledge of injection moulding for thermosets – elementary knowledge of RIM.
Unit 3
Blow Moulding & Thermoforming
Basic priciples of blow moulding process – production of parison -parison programming – extrusion blow moulding process – injection blow moulding process – injection stretch blow moulding process -advantages and limitations of blow moulding process -troubleshooting. Basic principle of thermoforming – clamping of sheets – heating sources – radiant – contact heating – mould and mould materials -female, male and matched mould – draw ratio of sheet – thermoforming techniques – vacuum forming – plug assist forming – drape forming -bubble or blister forming – snap back forming – advantages and limitations of thermoforming – troubleshooting.
Unit 4
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Unit 5
Finishing, Decoration & Joining Of Plastics
Introduction – Finishing of plastics – Filling, grinding, buffing, drilling, turning, slitting – Preparation for decorating – Printing – Silk screen printing – Pad printing – Rotogravure printing and flexographic printing – Hot stamping – Foil inlay moulding – Vacuum metalizing -Electroplating – Adhesive bonding – Advantage of adhesive bonding -Welding of plastics – Ultrasonic welding – Application – Vibration welding – Heat sealing – Thermal heat sealing – Dielectric sealing -Ancillary equipments – Drier – Types of Dryers, Tray Dryer, Rotatory dryer and Oven dryers, Hopper dryer, Dehumidifying dryer – Hopper loader – Vacuum hopper loader – Granulator – Mould temperature controller – Chilling plant – Colour blender – Magnetic grills
Text Books:
- D.H.Marton, Jones – Polymer Processing – Chapman and Hall 1989
- Irvin Rubin – Injection Moulding: Theory and Practice – Wiely, 1972
Reference Books:
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For detail syllabus of all other subjects of BE Polymer, M scheme do visit Polymer 5th Sem syllabus for M scheme.
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