Plastic Injection Molding Technology
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Follow on Instagram for UpdatesPlastic Injection Molding Technology Syllabus — Unit-wise Content
The official GTU curriculum for Plastic Injection Molding Technology (subject code BE05053011) as prescribed for Plastics · Semester 5 divides the course into 6 units, covering 15 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 (BE05053011)Unit 1 Introduction to Injection Moulding
- • Overview of Injection Moulding Process • Injection Moulding Machines • Injection Machine Operation • Basic Principles of Reciprocating Screw Injection Machine • Basic Principles of Plunger Type Injection Machine • Injection Moulding Cycle • Cycle Time Estimation • Types of Injection Moulding Machines
Unit 2 Constructional Features of Injection Moulding Machine Injection Unit
- • Hopper and Feeding System • Barrel Types (Bimetallic Barrel
- Grooved Barrel
- Nitrided Barrel
- Vented Barrel) • Thermocouples and Heating System • Screw Design and Types • Screw Characteristics and Screw Conveying • Screw Output and Melt Mechanism • Screw Tip Assemblies • Screw Drive System • Nozzle Types (Standard
- Needle Type
- Nylon Nozzle) • Injection End Specifications Clamping Unit: • Clamp Mechanisms • Clamp End Specifications • Toggle Clamp System • Hydraulic Clamp System • Comparison: Hydraulic vs Toggle Clamps • Other Clamp Mechanisms (Vertical/Horizontal Clamp
- Long Stroke Clamp
- Lock and Block Clamp) • Clamping Tonnage Calculations • Projected Area Calculation
Unit 3 Process Details of Injection Moulding
- • Machine Start-up Procedure • Machine Shutdown Procedure • Injection Moulding Process Steps • Process Variables (Temperature
- Speed) • Pressure Profile in Mould Cavity • PVT (Pressure–Volume–Temperature) Diagram Program Name: Engineering Level: Under Graduate Branch: Plastics Engineering Subject Code: BE05053011 Subject Name: Plastic Injection Moulding Technology • Advantages of Injection Moulding • Limitations / Disadvantages of the Process
Unit 4 Injection Moulding of Thermosetting Plastics
- • Overview of Thermoset Injection Moulding • Process Operations (Start-up
- Shutdown) • Process Considerations • Materials Used in Thermoset Injection Moulding • Part Design Considerations • Cold Runner Moulding • Troubleshooting in Thermoset Moulding • Influence of Major Injection Machine Variables
Unit 5 Auxiliary Equipment for Injection Moulding
- • Hopper Dryers • Ovens • Hopper Loaders / Auto Loaders • Granulators / Regrinders • Mould Temperature Regulators • Material Conveying Systems / Conveyors
Unit 6 Faults and Correction (Trouble Shooting) Brittleness -Bubbles and
- voids-Crazing-Discoloration-Flashing-Flow marks-Silver Streaks-Nozzle Drooling--Short Shots-Sink Marks-Sprue Sticking-Cavity Sticking-Surface Sticking-Warping-Weld Lines
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