Injection Molding Technologies
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Injection Molding Technologies Syllabus — Unit-wise Content
The official GTU curriculum for Injection Molding Technologies (subject code 2152301) as prescribed for Plastic · Semester 5 divides the course into 3 units, covering 32 listed topics. The unit-wise breakdown below is read from the GTU syllabus document for this subject code, so you can check what the course actually covers before deciding which papers to attempt.
Download the official syllabus PDF (2152301)Unit 1 Introduction
- Injection moulding
- Machine types : : Hand
- Semi Automatic and Fully Automatic
- History of Injection Moulding
- PLUNGER AND TOGGLE TYPE MACHINES
- Reciprocating type machines
- Process Steps
- Theory of injection Moulding
- Significance of cycle time
- injection pressure
- injection speed
- hold on pressure
- cooling time
- refill time, etc
- Process description & variables
Unit 2 RAW MATERIALS FOR INJECTION MOULDING
- Material selection criteria
- grades available, MFI, Rheological aspects of materials for injection moulding, etc
Unit 3 CONSTRUCTIONAL FEATURES
- Injection unit Design features of various types of Nozzle and internal heated nozzle
- Screw and screws for elastomers
- Screw L/D RATIO
- Compression ratio
- Significance of Helix angle
- flight depth
- root diameter
- overall diameter
- effective screw length
- etc. Thermocouples and various types used on injection moulding machines. Auxiliaries for Injection End, Material of Screws and barrel
- hydraulic system
- Clamping Unit Hydro mechanical clamping
- Full electrical clamping unit
- Accessories for clamping unit
- Tonnage calculations
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