DIPLOMA IN PLASTICS TECHNOLOGY (DPT)
Diploma in Plastics Technology (DPT)
SEMESTER-III
Polymer Science & Engineering
(Introduction-what are monomers, polymers, classification of polymers, bonding in polymers, Polymerization- mechanisms and techniques, structure and properties of polymers, molecular weight and thermal transitions – Tg and crystallinity, Rheology and characterization)
17.1 Understanding of Basics of Polymer Science Monomers & its requirement- Broad Classifications of Polymers - Bonding in Polymers – Polymer structure –Isomerism, Molecular Weight and its Distribution Thermal Transitions – Tg & Tm
17.2 Understanding of basics of Polymerization -Chain growth– Reaction Mechanism - Condensation Polymerization – 17.3 Knowledge of different Polymerization techniques
17.3 Knowledge of Polymer Structure Relationship – Molecular Weight, Polymer solutions and solubility-State of Polymer – Crystalline, Amorphous, Deformations in Polymer – Mechanical, thermal and electrical properties.
17.4 Understanding of basics of Polymer Rheology, concept of Viscoelasticity
17.5 Identify and characterize Polymers, determine Molecular Weight & Melt Flow Characteristics
17.6 Study of Thermal Analysis -DSC, TGA and Dynamic Mechanical Analysis of polymers.
PLASTICS MATERIALS – I
(To understand the different types of plastics - their method of preparation, characteristics, properties and applications)
18.1 Introduction to natural polymers-their sources, methods of manufacture, properties and applications
18.2 Knowledge of Commodity Plastics –Olefinic, Styrenic and Vinyl polymers-Method of Manufacture – General Characteristics & Properties – Processing Behaviour and applications
18.3 Knowledge of Engineering Plastics –Method of Manufacture – General Characteristics & Properties – Processing Behaviour and applications
18.4 Thermoset Plastics- Source of Raw Materials – Methods of Manufacture – General Characteristics & Properties – Processing Behaviour and Applications
Plastics Processing Technology – I
(Study of different processing methods, understand related operations, monitor process parameters and troubleshoot the process/product)
19.1 Understand Basic Principles of Melt Processing of Thermoplastics – thermal behavior, Rheology, orientation, degradation, advantages and limitations
19.2 Injection Moulding Process: Basic Process Principle - Types of Machines – Parts and its functions - Operation procedure - Clamping system - Types of Screw and their function - Heating System - Ejection system, Back Pressure, Nozzle Type
19.3 Understanding of Process variables - Moulding cycle, Purging - Material recommendation - Microprocessor controlled Injection Moulding Machine- Shrinkage – Annealing - Dimensional Control - Moulding Record, Trouble Shooting aspects
19.4 Study Injection Moulding of Thermosets
19.5 Understand basics of Automation and its application
19.6 Identify Types of Injection Moulds - finish, Gate Types, Runner
19.7 Understand Extrusion-principles - classification of extruders - types of screws - L/D ratio, compression ratio-back pressure, heating & cooling systems - breaker plate - screen pack & its functions - process variables and troubleshooting
19.8 Twin screw extruder - principle - types - Vented barrel extruder - hopper loading devices - Drying equipments - Process, machinery - downstream equipments - dies for producing products
19.9 Study of Blow Moulding process- principles – Process - Specification - Types - Processing parameters - Parison Programming - machine features - Cycle time –Clamping - Heating & cooling system - Mould venting -Faults - Causes & Remedies.
19.10 Understand use of Automation- Use of Robots in part handling, Robotics used in high production moulding process, Automated Conveyor system, Automatic material handling systems
Engineering drawing
(Practicing on the drawing concepts which help them to read different view/sections/projection of solids. Knowledge on assembly and detail drawings of Part.)
20.1 Explanation of the scope and objective of Engineering Drawing
20.2 Study of drawing standard, size of drawing sheet, layout of drawing sheet.
20.3 Do the drawing with the help of drawing tools like, drawing Board, mini drafter, pencil etc.
20.3 Use scale and put dimension with the help of drawing tools. On different mechanical objects using dimensioning methods.
20.4 Different geometric construction methods
20.5 Practice on Orthographic and isometric views
20.6 Projection of Points, Lines and Planes and solids.
20.7 Different sectional views, development of surfaces
20.8 Understanding perspective projection
20.9 Interpretation of fastening devices while drawing
20.10 Exposure the need of assembly and detailing of machine parts.
20.11 Different types of couplings used for assembly and its uses.
Mould Manufacturing
(Knowledge on mold steel and different techniques used for cavity machining, Inspection and assembly of molds and polishing / Texturing the mold surfaces)
21.1 Material selection for different molds – mold steels and non-ferrous materials
21.2 Knowledge of Conventional Techniques -Procedure for manufacturing of moulds –Cutting Tools - Study of various machining operations, Manufacturing of various mould elements.
21.3 Knowledge of Mould Making Techniques - Special Machine & Tools- Electrical Discharge Machining (EDM), CNC machines for mould making, maintenance of molds.
21.4 Knowledge of Mould Maintenance –purpose - Specification sheets - History sheets - Instruction Manual- Factors for Physical Mould Life - Maintenance Frequency - Break Down Maintenance - Suggested Tools Preventive maintenance - Mould Removing, Cleaning and Storage.
Plastics Processing Lab – I
(Demonstration and practice on various plastic processing machine operation and its maintenance)
22.1 Familiarization with basic concepts, job requirements & Basic related process
22.2 Safety precautions to be taken in Shop floor
22.3 Hand injection molding machine –parts and their function, Operating Principles, IRO
22.4 Produce molded products using different hand injection moulds.
22.5 Familiarization with and Operation practice on Scrap Grinding -
22.6 Knowledge of semi-automatic injection molding machine parts and their functions
22.7 Operate semi-automatic injection molding machine both pneumatic and hydraulic types
22.8 Demonstrate ability to determine cycle time and adjust process parameters
22.9 Knowledge of automatic injection molding machine parts and their functions
22.10 Operate Pneumatic& Hydraulic type of Semi automatic Injection moulding machines, determine cycle-time
22.11 Blown film extrusion-Set up process and machine parameters and operate machine to produce different sizes of blown film.
22.12 Pipe extrusion - Set up process and machine parameters and operate machine to produce pipe/tube and also do troubleshooting.
22.13 Blow moulding - semi auto & automatic machineset up and operate to produce good quality products.
Engineering Drawing Lab
(Practical Exposure on Engineering drawing, study of assembly drawings)
23.1 Projection of points in different quadrants
23.2 Projection of straight lines parallel to one or both planes, parallel to one plane, perpendicular to other, inclined to one plane and parallel to other line inclined to both planes (in first quadrant) and finding the true length
23.3 Projection of planes and polygonal surface – parallel to one plane and perpendicular to other plane (in first quadrant).
23.4 Projection of simple solids for prism, pyramid, cylinder and cone when the axis is parallel to one plane and perpendicular to other plane in first quadrant
23.5 Sectioning of solids in simple vertical position by cutting planes inclined to one reference plane and perpendicular to the other, obtaining true shape of section
23.6 Development of lateral surfaces of simple and truncated solids- prisms, pyramids, cylinders and cones
23.7 Development of lateral surfaces of solids with cylindrical cut-outs, perpendicular to the axis.
23.8 Isometric projections of simple solids, truncated prisms, pyramids, cylinders and cones
23.9 Study of Assembly Drawing
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